From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 2 10:53:45 1998 X-UIDL: 845300134ac5e1542cd57311dbd81e2b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.8.8) with ESMTP id KAA12992 for ; Sat, 2 May 1998 10:53:45 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA04840 for glowbugs-outgoing; Sat, 2 May 1998 07:23:01 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from admin.aurora.edu (admin.aurora.edu [192.203.224.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA04831 for ; Sat, 2 May 1998 07:22:58 -0700 (PDT) Received: from localhost (broehrig@localhost) by admin.aurora.edu (8.8.8/8.8.8) with SMTP id JAA19131; Sat, 2 May 1998 09:14:39 -0500 Date: Sat, 2 May 1998 09:14:38 -0500 (CDT) From: Bob Roehrig To: Ken Gordon cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Glowbugs and QSK... In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Fri, 1 May 1998, Ken Gordon wrote: > Indeed! Has anyone here remembered how to "hotrod" a relay? > > I tried it several times: the idea is to use something on the order of a > 350 VDC powersupply for a 12 VDC relay, with a series dropping resistor so > that when the key is down, the current through the relay is no more than > the rated current. Supposedly...what this does is make the relay close > much faster. That's how a TTY loop circuit works. Typically use around a 120VDC supply and a 2K resistor, even though the polar relays or selector magnets will pull in at less than 28V. Using a diode across the coil directly will slow down the release. best way is to put the diode across the combination of the relay coil and its dropping resistor. (This was not done in TTY circuits - they usually used series RC "networks" across contacts rather than anything across the coils). "Nostalgia is a thing of the past" E-mail broehrig@admin.aurora.edu 73 de Bob, K9EUI CIS: Data / Telecom Aurora University, Aurora, IL 630-844-4898 Fax 630-844-5530 From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 2 13:01:51 1998 X-UIDL: 4751852f42b5ce5b6b5138a397166c6b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.8.8) with ESMTP id NAA27884 for ; Sat, 2 May 1998 13:01:51 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA06360 for glowbugs-outgoing; Sat, 2 May 1998 09:35:07 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from alyssa.iaxs.net (root@alyssa.iaxs.net [205.164.100.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA06355 for ; Sat, 2 May 1998 09:35:04 -0700 (PDT) Received: from citrus.iaxs.net (bill@citrus.iaxs.net [206.43.66.3]) by alyssa.iaxs.net (8.8.8/iaxs-19971103) with ESMTP id LAA16378; Sat, 2 May 1998 11:34:26 -0500 (CDT) Received: (from bill@localhost) by citrus.iaxs.net (8.8.8/iaxs-citrus-19971103) id LAA08029; Sat, 2 May 1998 11:34:23 -0500 (CDT) Date: Sat, 2 May 1998 11:34:23 -0500 (CDT) From: Bill Hawkins Message-Id: <199805021634.LAA08029@citrus.iaxs.net> To: broehrig@admin.aurora.edu, keng@uidaho.edu Subject: Re: GB> Glowbugs and QSK... Cc: glowbugs@piobaire.mines.uidaho.edu Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Well, lessee, the thing that makes the relay move is the magnetic field. That's proportional to current. The coil has inductance (that varies as the armature moves). The fastest way to establish current is to use a current source, approximated by a large resistor and relatively high voltage. Then you'd want to reduce the armature travel distance (and time) by adjusting/bending things to get a small magnetic gap and a small contact gap. Low spring force would be nice, but you'll need it for the release. On the release, you need to dump the current quickly and use the spring force to pull the armature back to the open position. If the circuit is just opened, the inductor tries to maintain current flow and the voltage rises until something arcs. Using a back diode will stop the arc, but it maintains the current flow and holds the armature closed. Bob says TTY used RC across contacts. So did IBM in the old 700 series VT computer gear. R was about the DC coil resistance, and C about 0.1 microfarad. Don't know how the values are picked, but there's only two of them. A resistance box and a cap box and a scope across the contacts would let you tune the RC values for fast release - if you are really serious about fast QSK, that is. The original RC values were probably chosen to minimize arcing and maximize contact life. Just speculation, but the use of RC to let the circuit oscillate in a damped wave probably reduces the magnetic field holding the armature faster than using a back diode and a resistor, for LR decay. Then again, maybe not. Caps were cheaper than diodes in those days. Regards, Bill Hawkins From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 2 16:22:56 1998 X-UIDL: 6fe4e93ada0b69cef76808aae50d637b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.8.8) with ESMTP id QAA13141 for ; Sat, 2 May 1998 16:22:56 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA07977 for glowbugs-outgoing; Sat, 2 May 1998 12:59:11 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtigwc04.worldnet.att.net (mtigwc04.worldnet.att.net [204.127.131.33]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA07972 for ; Sat, 2 May 1998 12:59:07 -0700 (PDT) Received: from LOCALNAME ([12.65.146.46]) by mtigwc04.worldnet.att.net (post.office MTA v2.0 0613 ) with SMTP id AAB22149; Sat, 2 May 1998 19:58:11 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, glowbugs@piobaire.mines.uidaho.edu From: Sandy W5TVW Subject: GB> Baton Rouge, LA hamfest Date: Sat, 2 May 1998 19:58:11 +0000 Message-ID: <19980502195806.AAB22149@LOCALNAME> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Went to Baton Rouge today with Joe, K5HLR. Ran into a few Glowbuggers- Boatanchor people there. The pickin's were very slim! Saw an R-392 (It followed Keith KK5FE home!) There was a very scruffy NC-98 there overpriced at $110. A Hallicrafters S-120 (didn't ask price!) Not much else except some craft stuff, and lots of computer odds-n-ends. Many, many empty tables! I'd say it was about as poor a flea market showing as I've seen there. I came home with nearly all my money! 73, E. V. Sandy Blaize, W5TVW "Boat Anchors collected, restored, repaired, traded and used!" 417 Ridgewood Drive Metairie, LA., 70001 ***Again looking for a Hallicrafters SR-75 **** **860 Hartley 'ECO' construction "on hold"**** *** Looking for a TRC-10 transceiver ****** *** Looking for an RAL receiver *********** From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 3 00:16:54 1998 X-UIDL: 2e14193867bbbd0bf4097d1afef35847 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.8.8) with ESMTP id AAA24736 for ; Sun, 3 May 1998 00:16:54 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA11224 for glowbugs-outgoing; Sat, 2 May 1998 20:49:47 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id UAA11214; Sat, 2 May 1998 20:49:33 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sat, 2 May 1998 20:49:32 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Doug cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Glowbugs and QSK... In-Reply-To: <354BC990.4EBC01B9@alpinet.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO My sincere thanks to everyone who responded to my original post on "hotrodding" a relay. Your suggestions were VERY practical and all of them work. Thanks again!!!!! Ken W7EKB On Sat, 2 May 1998, Doug wrote: > Hi Ken.....try it the way the Phone company did it back when we had > relays in about everything for the business. Use a separate source, fed > through a diode to the coil. Include sufficient series resistance to allow > some current to flow in the coil at all times, just not quite enough to cause > the contacts to become light in the released position. This current is called > the "soak" current, and is designed to bring the relay near to the operating > point, reducing the R/L time constant in the core and causing it to switch > to the opposite state much more quickly. Just dont use too much current > that'd keep the relay from releasing quickly. > > I've tried this in a QSK configuration and it really rocks.....good clean > switching and falloff time. > > Have fun > > Doug, K7YD > > > Ken Gordon wrote: > > > On Fri, 1 May 1998, DEVCOM wrote: > > > > > I used to run QSK with relays with a homebrew 6C4/6DQ6 transmitter with a > > > radio shack SW receiver and, like you say, it was great! Works even better > > > than VOX (which is also good for hearing someone trying to break) and full > > > duplex on VHF, because between each character you can hear the slightest bit > > > of interference, breakers, the other station doubling with you, etc. > > > Amazing how many thousands of "cycles" a mechanical device like that can > > > survive.. > > > > Indeed! Has anyone here remembered how to "hotrod" a relay? > > > > I tried it several times: the idea is to use something on the order of a > > 350 VDC powersupply for a 12 VDC relay, with a series dropping resistor so > > that when the key is down, the current through the relay is no more than > > the rated current. Supposedly...what this does is make the relay close > > much faster. > > > > However, all I ever accomplished by doing this was burn up relays. They > > surely keyed fast....for a while. I tried a clamping-diode but that > > didn't help either. I abandoned the idea since I had run out of time to > > devote to it. > > > > Now, I wonder... > > > > Ken W7EKB > > > > > > From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 3 11:46:08 1998 X-UIDL: 6f3973a4838c979dfb0285b882e44763 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.8.8) with ESMTP id LAA07394 for ; Sun, 3 May 1998 11:46:07 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA18600 for glowbugs-outgoing; Sun, 3 May 1998 08:21:29 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from admin.aurora.edu (admin.aurora.edu [192.203.224.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA18591 for ; Sun, 3 May 1998 08:21:25 -0700 (PDT) Received: from localhost (broehrig@localhost) by admin.aurora.edu (8.8.8/8.8.8) with SMTP id KAA28601; Sun, 3 May 1998 10:12:33 -0500 Date: Sun, 3 May 1998 10:12:33 -0500 (CDT) From: Bob Roehrig To: Bill Hawkins cc: keng@uidaho.edu, glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Glowbugs and QSK... In-Reply-To: <199805021634.LAA08029@citrus.iaxs.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Sat, 2 May 1998, Bill Hawkins wrote: > Bob says TTY used RC across contacts. So did IBM in the old 700 series > VT computer gear. R was about the DC coil resistance, and C about 0.1 > microfarad. Don't know how the values are picked, but there's only two > of them. That's about right I think. The TTY (and other Western Electric) circuits used a couple different "networks". The most popular one was a 185A, if I remember correctly, and as I recall it had a resistor of 470 to 560 ohms and a cap of .1 to .15uf. "Nostalgia is a thing of the past" E-mail broehrig@admin.aurora.edu 73 de Bob, K9EUI CIS: Data / Telecom Aurora University, Aurora, IL 630-844-4898 Fax 630-844-5530 From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 4 00:06:16 1998 X-UIDL: 3758fcce5780eecdd8fe0b5934187cde Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.8.8) with ESMTP id AAA17886 for ; Mon, 4 May 1998 00:06:15 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA24985 for glowbugs-outgoing; Sun, 3 May 1998 20:45:30 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from camel7.mindspring.com (camel7.mindspring.com [207.69.200.57]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA24980 for ; Sun, 3 May 1998 20:45:26 -0700 (PDT) Received: from sorcery-2 (user-38lc2rt.dialup.mindspring.com [209.86.11.125]) by camel7.mindspring.com (8.8.5/8.8.5) with SMTP id XAA07143 for ; Sun, 3 May 1998 23:44:45 -0400 (EDT) Message-Id: <3.0.5.32.19980503225824.00813440@pop.pipeline.com> X-Sender: lrware@pop.pipeline.com X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Sun, 03 May 1998 22:58:24 +0000 To: glowbugs@piobaire.mines.uidaho.edu From: "Lawrence R. Ware" Subject: GB> Box of glowbug type parts Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Good evening folks! Been a while since I posted here, but since I have this box of NOS Bud and Johnson variable caps sitting around I thought I'd see if any of the glowbuggers needed some for home-brew projects. I have: 4 ea. BUD LC-1847 3 gang tinymite 25 pf/section variables. 6 ea. Johnson 149-2 ? variables. 4 ea. Johnson 160-311 2.9 - 19.6 pf variables. 4 ea. Johnson 160-203 1.5 - 3.1 pf variables. 20 total all NOS, 19 NIB. One of you homebrewers want to take the whole lot for $20 + $4 for priority mail? If I get a lot of requests, winner will be picked based on best idea for using them.... :-) -Larry # Larry Ware # Admirer, Collector, Restorer of National Radio Company # receivers and other artifacts. # Orlando, Florida # lrware@pipeline.com From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 3 22:07:26 1998 X-UIDL: 36182b68ee53d4e70b67a381190614e4 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.8.8) with ESMTP id WAA13851 for ; Sun, 3 May 1998 22:07:25 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA24010 for glowbugs-outgoing; Sun, 3 May 1998 18:41:58 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id SAA24005 for ; Sun, 3 May 1998 18:41:55 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sun, 3 May 1998 18:41:55 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> A keying relay... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Well, I found a "Keying Relay M-7470182, Struthers-Dunn, Inc., Type 78CCA101, 28VDC" I think it is the one which goes in the ART-13. Looks nearly new. Dunno where I got it. Every contact set inside is adjustable as is the armature tension and spacing. Seems too big and stiff to key very fast. It has an external vacumn relay which was probably used to key the antenna. Does anyone have a wiring diagram for this thing ? I mean the Cinch-Jones looking thing on the bottom? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 22:55:25 1998 X-UIDL: af5f83bdd2fe7998ff09776f631b7f2a Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA09732 for ; Tue, 5 May 1998 22:55:25 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA07715 for glowbugs-outgoing; Tue, 5 May 1998 19:23:52 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from main.aeneas.net (root@main.aeneas.net [207.203.176.23]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id TAA07710 for ; Tue, 5 May 1998 19:23:48 -0700 (PDT) Received: from [207.203.177.35] (pmj320.aeneas.net [207.203.177.35]) by main.aeneas.net (8.6.12/8.6.9) with SMTP id VAA12895; Tue, 5 May 1998 21:24:37 -0500 X-Sender: w5hvv@mail.aeneas.net Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 5 May 1998 21:23:18 +0600 To: "Roberta J. Barmore" , glowbugs@piobaire.mines.uidaho.edu, BOATANCHORS@LISTSERV.TEMPE.GOV From: w5hvv@aeneas.net (Roderick M. Fitz-Randolph) Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > (BTW, the mil Z-sig ZBA means "cause of delay is _____." It sort of >applies, if we take QBA to be similar. Stick with the Q-sig--lest you >receive a reply from a South African comm'l station! My favorite >Z-sig is ZAO: "Can't understand voice. Use telegraphy." H'mmm, wonder if >W9ZAO is taken? And ZAB could be useful: "Your speed key improperly >adjusted." Not that we ever hear *that* on the bands). > > 73, > --Bobbi __________________________________________________________________________ Bobbi, when I was handling CW traffic from Ascension Island as AFE83 back up to Patrick AFB (AFE70) and was also bringing the old obsolete DC-4s over from Recife, Brazil back in 1956-57, we used to use Z-codes. I've got a few good stories to tell about the use of the one that stands for, "Place a competent operator on the circuit". If my ancient memory cells work anymore, I recall it was ZBJ.... not sure tho. Do you (or anyone else) know where we can get a complete set of the Z-codes? Rod, N5HV w5hvv@aeneas.net From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 12:43:04 1998 X-UIDL: 72570abef26951aaa27ce979c9b33749 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id MAA14967 for ; Tue, 5 May 1998 12:43:04 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA27485 for glowbugs-outgoing; Tue, 5 May 1998 09:07:11 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA27476 for ; Tue, 5 May 1998 09:07:06 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id MAA23608; Tue, 5 May 1998 12:05:05 -0400 (EDT) Message-Id: <199805051605.MAA23608@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: raylarue@gte.net, Boatanchors-qth , glowbugs@piobaire.mines.uidaho.edu Date: Tue, 5 May 1998 12:04:27 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? Reply-to: bry@mnsinc.com Priority: normal In-reply-to: <354BDCAD.53E4F180@gte.net> X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Now folks here is an idea that may have some validity! I don't like to sign as AF4K/BA because it sounds like I am in some foreign country!! HOW ABOUT instead of calling CQ we call QBA QBA QBA de AF4K AF4K AF4K Meaning: CQ CQ CQ (I am using a BA and would like to work others with old tube gear!) and how about insetad of a QRZ? we would send QBA? QBA? QBA? Meaning: 'Who is calling me with a Boatanchor?" I think this has some merit! What do YOU folks think??? On 2 May 98 at 22:55, Ray wrote: > During field day, members of AReU (East Tampa), are planning on > firing up a couple classic and antique rigs. It will be a great > opportunity for new hams to see a little of our "roots" in operation > and for old hams to be reminded of some of the enjoyable times in > the past. One of our rigs is a compact one tube, WW 2 spy rig. It > is xtal controlled and runs only about 10 watts. > > Is there a "Q" signal which could be transmitted along with ones > call, to indicate the use of an classic/antique? I was thinking > like QBA or QAT? I think if I heard such an ID among all the other > QRM, I would try harder to make the contact. If not, anyone game > for coining one? 73, Ray, W4BYG > > > --- > Submissions boatanchors@qth.net > **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 13:26:15 1998 X-UIDL: aac089e3a37078d25a7797f208a7b5da Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id NAA27520 for ; Tue, 5 May 1998 13:26:14 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA28408 for glowbugs-outgoing; Tue, 5 May 1998 09:54:02 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA28387; Tue, 5 May 1998 09:53:15 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 5 May 1998 09:53:15 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Brian Carling cc: raylarue@gte.net, Boatanchors-qth , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? In-Reply-To: <199805051605.MAA23608@relay.mnsinc.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Excellent idea, but what are the REAL meanings for QBA and QBA? They DO exist, you know. Probably have not been used in dogs years, but they are someone's list somewhere. Say, Bry, I worked W7ZFB last night on 7051 or so. He was 599 into Moscow despite a) QRN (a storm building up), and b) his 40 watts from the Elmac pair. This about 0300. He had much worse QRN than myself. Even so, he didn't have a LOT of trouble hearing my 50 watts until just before we signed. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 14:22:23 1998 X-UIDL: 1ae463349066c09615b24cc05dc86c60 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id OAA16254 for ; Tue, 5 May 1998 14:22:22 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA29922 for glowbugs-outgoing; Tue, 5 May 1998 10:48:36 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.xmission.com (mail.xmission.com [198.60.22.22]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA29917 for ; Tue, 5 May 1998 10:48:32 -0700 (PDT) Received: from slc282h.modem.xmission.com (xmission.com) [166.70.2.28] by mail.xmission.com with esmtp (Exim 1.82 #2) id 0yWlp6-0004tQ-00; Tue, 5 May 1998 11:48:12 -0600 Message-ID: <354F51FB.F4BAD285@xmission.com> Date: Tue, 05 May 1998 11:53:03 -0600 From: Dexter Francis Reply-To: cwest@xmission.com Organization: CWest Tube Sales X-Mailer: Mozilla 4.05 (Macintosh; I; PPC) MIME-Version: 1.0 To: Ken Gordon , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? References: Content-Type: text/plain; charset=us-ascii; x-mac-type="54455854"; x-mac-creator="4D4F5353" Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have a copy of "Electronic Communication" by Shrader, that has a five page list of Q Signals in it, that goes from QRA to QUU. There are no Q signals listed that start with anything before QR. Here are a few that I find particularly fun: QRD - Is my keying defective? These two "Ferrengi" Q signals from a bygone era... QSJ - What is the charge to be collected per word to_______, including internal telegraph charges? QSP - Will your relay to_______free of charge? QUA - Have you news of (station ID)? QUI - Are your navigation lights working? [Lights on - No one home?!...;-)] And this one, for pure power of compaction... QUQ - Shall I train my searchlight nearly vertical on a cloud, occulting if possible and, if your aircraft is seen, deflect the beam up-wind on on the water or land, to facilitate your landing? -df *** CWest - P.O. Box 22443 Salt Lake City, Utah 84122 *** *Visit our Web Page @ http://www.xmission.com/~cwest* From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 16:13:35 1998 X-UIDL: 90d08495d59169998c0c716d81867155 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id QAA13607 for ; Tue, 5 May 1998 16:13:34 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA02294 for glowbugs-outgoing; Tue, 5 May 1998 12:38:56 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from seedlab1.cropsci.ncsu.edu (seedlab1.cropsci.ncsu.edu [152.1.88.4]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA02284 for ; Tue, 5 May 1998 12:38:51 -0700 (PDT) Received: (from rdkeys@localhost) by seedlab1.cropsci.ncsu.edu (8.8.7/8.8.7) id PAA12126; Tue, 5 May 1998 15:34:29 -0400 (EDT) From: "Robert D. Keys" Message-Id: <199805051934.PAA12126@seedlab1.cropsci.ncsu.edu> Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? In-Reply-To: <354F51FB.F4BAD285@xmission.com> from Dexter Francis at "May 5, 98 11:53:03 am" To: cwest@xmission.com Date: Tue, 5 May 1998 15:34:29 -0400 (EDT) Cc: keng@uidaho.edu, glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > I have a copy of "Electronic Communication" by Shrader, that has a five > page list of Q Signals in it, that goes from QRA to QUU. There are no Q > signals listed that start with anything before QR. That is a good study book. Not as good as Noll, but generally lots of good info, if you get a 3rd edition. The latest one get scarce on CW stuff, if memory serves me correctly. There are reserved sections that are in the ITU designations. I think the ACM Army pub details what is open. That is the definitive list other than the ITU pubs. Someone had it transcribed in, at one time, and I have transcribed about half of it in.... someday to finish. > Here are a few that I find particularly fun: > > QRD - Is my keying defective? > > These two "Ferrengi" Q signals from a bygone era... > > QSJ - What is the charge to be collected per word to_______, including > internal telegraph charges? That might still apply, but not in ham circuits. > QSP - Will your relay to_______free of charge? That definitely still applies in traffic handling. I use that quite often. It is also used in conversational mode, where you want to just relay indirectly something to a buddy. In round tables, where someone is not around, yet, it is useful, if you have to leave for a while and you expect the buddy to show up. > QUA - Have you news of (station ID)? That is used occasionally, especially among friends. > QUI - Are your navigation lights working? [Lights on - No one > home?!...;-)] The air sigs are not used much anymore..... > And this one, for pure power of compaction... > > QUQ - Shall I train my searchlight nearly vertical on a cloud, occulting > if possible and, if your aircraft is seen, > deflect the beam up-wind on on the water or land, to > facilitate your landing? There are several of somewhat dense compaction, depending upon what your particular originating or replying use is. 73/Bob/NA4G From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 16:33:02 1998 X-UIDL: a6f1cd5632f31ee57607e9b5964b9b3f Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id QAA10476 for ; Tue, 5 May 1998 16:33:01 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA02575 for glowbugs-outgoing; Tue, 5 May 1998 13:01:16 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from getnet.com (gn2.getnet.com [207.254.1.12]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA02570 for ; Tue, 5 May 1998 13:01:11 -0700 (PDT) Received: from localhost (jackmead@localhost) by getnet.com (8.8.8/8.8.7) with SMTP id NAA08324; Tue, 5 May 1998 13:00:07 -0700 (MST) Date: Tue, 5 May 1998 13:00:07 -0700 (MST) From: Jack Meadows To: Brian Carling cc: raylarue@gte.net, Boatanchors-qth , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? In-Reply-To: <199805051605.MAA23608@relay.mnsinc.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I like QBA, it has a nice rhythm! Let's do it! Best regards, Jack W7QQQ 813 xtal osc. 6dq6 xtal osc. SB220 QRG cleaner On Tue, 5 May 1998, Brian Carling wrote: > Now folks here is an idea that may have some validity! > > I don't like to sign as AF4K/BA > because it sounds like I am in some foreign country!! > > HOW ABOUT instead of calling CQ we call > QBA QBA QBA de AF4K AF4K AF4K > > Meaning: CQ CQ CQ (I am using a BA and would like to work others with > old tube gear!) > > and how about insetad of a QRZ? we would send QBA? QBA? QBA? > > Meaning: 'Who is calling me with a Boatanchor?" > > I think this has some merit! What do YOU folks think??? > > > **************************************************** > *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * > ** E-mail to: bry@mnsinc.com * > *** ICQ 6124470 *** > ** http://www.mnsinc.com/bry/ * > **************************************************** > AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 > C. > TEN-TEN #13582, DXCC #17763, Bicentennial WAS > From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 16:58:02 1998 X-UIDL: 70931c12b322cbfca17967dae7194c8d Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id QAA30551 for ; Tue, 5 May 1998 16:58:01 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA03328 for glowbugs-outgoing; Tue, 5 May 1998 13:26:10 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay1.Hawaii.edu (root@relay1.hawaii.edu [128.171.3.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id NAA03323 for ; Tue, 5 May 1998 13:26:04 -0700 (PDT) Received: from uhunix5.its.Hawaii.Edu ([128.171.44.55]) by relay1.Hawaii.Edu with SMTP id <148634(10)>; Tue, 5 May 1998 10:25:33 -1000 Received: from localhost by uhunix5.its.Hawaii.Edu with SMTP id <188932(6)>; Tue, 5 May 1998 10:25:25 -1000 Date: Tue, 5 May 1998 10:25:20 -1000 From: Jeffrey Herman X-Sender: jeffreyh@uhunix5 To: Ken Gordon cc: Brian Carling , raylarue@gte.net, Boatanchors-qth , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hey Gang, why don't we all meet on one BA list instead of two of 'em; I see in the header some of you are residing on the ba@qth.net list. I believe the list boatanchors@listserve.tempe.gov, with its 460 subscribers, might be the place to hang out. It would be nice to have all the BA people in one location so we don't miss any gossup, err, good stuff. 73, Jeff KH2PZ From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 17:57:03 1998 X-UIDL: a8160cfa198cce82692f205f934ca855 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id RAA09751 for ; Tue, 5 May 1998 17:57:01 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA04252 for glowbugs-outgoing; Tue, 5 May 1998 14:19:12 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA04247 for ; Tue, 5 May 1998 14:19:08 -0700 (PDT) Received: from indy3.indy.net (root@indy3.indy.net [199.3.65.14]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id PAA04976; Tue, 5 May 1998 15:44:22 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy3.indy.net (8.8.7/8.8.7) with SMTP id PAA12594; Tue, 5 May 1998 15:44:20 -0500 (EST) Date: Tue, 5 May 1998 15:44:19 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy3 To: Brian Carling cc: raylarue@gte.net, Boatanchors-qth , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? In-Reply-To: <199805051605.MAA23608@relay.mnsinc.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! The only problem I have with "QBA" is that it tends to restrict one's preaching to the choir! Folks like me, who run low power and aren't on the air very often, tend to want to work anybody we can find--and for that, CQ (called or, more often, answered) works just fine. Most of 'em get a kick out of hearing "rig hr one 6L6!" --And the ones that don't usually ask what it is. (One fellow in TX even wrote for the schematic!) (BTW, the mil Z-sig ZBA means "cause of delay is _____." It sort of applies, if we take QBA to be similar. Stick with the Q-sig--lest you receive a reply from a South African comm'l station! My favorite Z-sig is ZAO: "Can't understand voice. Use telegraphy." H'mmm, wonder if W9ZAO is taken? And ZAB could be useful: "Your speed key improperly adjusted." Not that we ever hear *that* on the bands). 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 17:33:52 1998 X-UIDL: bed55481ff8dda66c991a5899afb8fc4 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id RAA16352 for ; Tue, 5 May 1998 17:33:52 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA03964 for glowbugs-outgoing; Tue, 5 May 1998 13:57:22 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtigwc05.worldnet.att.net (mtigwc05.worldnet.att.net [204.127.131.35]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA03959 for ; Tue, 5 May 1998 13:57:19 -0700 (PDT) Received: from LOCALNAME ([12.65.147.100]) by mtigwc05.worldnet.att.net (post.office MTA v2.0 0613 ) with SMTP id AAB23093; Tue, 5 May 1998 20:56:15 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: Jack Meadows , glowbugs@piobaire.mines.uidaho.edu From: Sandy W5TVW Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? Date: Tue, 5 May 1998 20:56:15 +0000 Message-ID: <19980505205610.AAB23093@LOCALNAME> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 01:00 PM 5/5/98 -0700, you wrote: >I like QBA, it has a nice rhythm! >Let's do it! > >Best regards, >Jack W7QQQ >813 xtal osc. >6dq6 xtal osc. >SB220 QRG cleaner > According to my old ACP131, "QBA" means: What is the horizontal visibility at........? (place) Answer: The horizontal visibility at....(place) at.....hours is......(distance). Now QGA and QGB has no entry. That is it is in the book, but the meaning/definition is blank. My ACP131 is dated July 1953. 73, E. V. Sandy Blaize, W5TVW "Boat Anchors collected, restored, repaired, traded and used!" 417 Ridgewood Drive Metairie, LA., 70001 ***Again looking for a Hallicrafters SR-75 **** **860 Hartley 'ECO' construction "on hold"**** *** Looking for a TRC-10 transceiver ****** *** Looking for an RAL receiver *********** From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 18:18:13 1998 X-UIDL: dbb34802138a5d8b01efca44cb679cae Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id SAA08933 for ; Tue, 5 May 1998 18:18:12 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA04620 for glowbugs-outgoing; Tue, 5 May 1998 14:44:01 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pacs01.infoave.net (20C00D02@pacs01.InfoAve.Net [165.166.0.11]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA04613 for ; Tue, 5 May 1998 14:43:54 -0700 (PDT) Received: from tetrode ("port 3472"@[149.149.42.10]) by InfoAve.Net (PMDF V5.1-10 #23426) with SMTP id <01IWOLF1ZTZG8ZE3FS@InfoAve.Net> for glowbugs@piobaire.mines.uidaho.edu; Tue, 5 May 1998 17:43:20 EDT Date: Tue, 05 May 1998 16:47:23 -0500 From: Conard Murray WS4S Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? To: Sandy W5TVW , Jack Meadows , glowbugs@piobaire.mines.uidaho.edu Message-id: <001401bd786f$64b79de0$0a2a9595@tetrode.ece.tntech.edu> MIME-version: 1.0 X-Mailer: Microsoft Outlook Express 4.72.2106.4 Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 X-Priority: 3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Sandy said: ---> According to my old ACP131, "QBA" means: What is the horizontal >visibility >at........? (place) > Answer: The horizontal visibility at....(place) at.....hours >is......(distance). So, can we reinterpret this to mean : QBA?: Can you see across the room for all the old radio junk piled up in your shack? answered by: QBA1: stacked up one foot, visibility ok. QBA2: stacked up 2 feet, where are the wall outlets? and so on until: QBA8: I can't get out of the shack. Call the rescue squad caving and extrication team. ZUT! de Conard, WS4S From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 18:51:52 1998 X-UIDL: a9344c11ec593b968521a0f52d26e644 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id SAA25934 for ; Tue, 5 May 1998 18:51:51 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA05071 for glowbugs-outgoing; Tue, 5 May 1998 15:12:57 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from dfw-ix5.ix.netcom.com (dfw-ix5.ix.netcom.com [206.214.98.5]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA05066 for ; Tue, 5 May 1998 15:12:54 -0700 (PDT) Received: (from smap@localhost) by dfw-ix5.ix.netcom.com (8.8.4/8.8.4) id RAA06622; Tue, 5 May 1998 17:11:50 -0500 (CDT) Date: Tue, 5 May 1998 17:11:50 -0500 (CDT) Message-Id: <199805052211.RAA06622@dfw-ix5.ix.netcom.com> Received: from val-ca3-04.ix.netcom.com(206.217.130.68) by dfw-ix5.ix.netcom.com via smap (V1.3) id rma006583; Tue May 5 17:11:14 1998 From: mjsilva@ix.netcom.com (michael silva) Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? To: glowbugs@piobaire.mines.uidaho.edu To: boatanchors@listserve.tempe.gov Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Brian wrote: > >Now folks here is an idea that may have some validity! > >I don't like to sign as AF4K/BA >because it sounds like I am in some foreign country!! > >HOW ABOUT instead of calling CQ we call >QBA QBA QBA de AF4K AF4K AF4K I've wanted to convey the same information myself. Since it's been pointed out that QBA is already defined, how about QVT? Not defined AFAIK; covers commercial, military and homebrew, big and small, as long as it glows; and has a fabulous rhythm. Plus people will answer Bobbi's CQs just to find out what it means! 73, Mike, KK6GM From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 20:18:54 1998 X-UIDL: 062fe49996c621123b0fa4bc5b8ed456 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id UAA22743 for ; Tue, 5 May 1998 20:18:53 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA06004 for glowbugs-outgoing; Tue, 5 May 1998 16:52:00 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id QAA05999 for ; Tue, 5 May 1998 16:51:54 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 5 May 1998 16:51:54 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? In-Reply-To: <199805052211.RAA06622@dfw-ix5.ix.netcom.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I thought I once had a list of "Q" and "Z" signals which ran from QAA/ZAA through QZZ/ZZZ. Have they all gone away, like CW in the Coast Guard!?!?!?!?!?! Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 20:18:57 1998 X-UIDL: b67801a9596146d1d3cd1ba6e851f580 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id UAA16720 for ; Tue, 5 May 1998 20:18:56 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA06016 for glowbugs-outgoing; Tue, 5 May 1998 16:52:37 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id QAA06011 for ; Tue, 5 May 1998 16:52:34 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 5 May 1998 16:52:33 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> RE: Q and Z sigs... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have a scanner, if that would help. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 5 20:43:04 1998 X-UIDL: d26f8d8f46b75c122052d87c664bbd75 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id UAA26158 for ; Tue, 5 May 1998 20:43:03 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA06369 for glowbugs-outgoing; Tue, 5 May 1998 17:15:30 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mead.wanet.net (mead.wanet.net [205.229.176.135]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA06364 for ; Tue, 5 May 1998 17:15:26 -0700 (PDT) Received: from LOCALNAME (d205229186048.socal.wanet.com [205.229.186.48]) by mead.wanet.net (8.8.7/8.8.7) with SMTP id RAA12094 for ; Tue, 5 May 1998 17:14:48 -0700 (PDT) Date: Tue, 5 May 1998 17:14:48 -0700 (PDT) Message-Id: <3.0.16.19980505171033.69377b82@SOCAL.WANet.com> X-Sender: k6qq@SOCAL.WANet.com X-Mailer: Windows Eudora Pro Version 3.0 (16) To: glowbugs@piobaire.mines.uidaho.edu From: John Moriarity Subject: Re: GB> Re: [BoatAnchors] "Q" signals Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Be careful when making up Q signals. According to an article I read by Kenneth Brown, G0PSW, there are Q signals before QR that (were?) used by the British Army. For example, QAU meant "I am waterlogged". My special favorite is QGG, meaning "send the pony by the next train". 73, John, K6QQ From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 6 01:06:08 1998 X-UIDL: 04c4e4499e34c07e8b4d4e7d86b197de Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id BAA01056 for ; Wed, 6 May 1998 01:06:06 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA09184 for glowbugs-outgoing; Tue, 5 May 1998 21:35:33 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from koto.qnet.com (mta@koto.qnet.com [207.155.37.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id VAA09179 for ; Tue, 5 May 1998 21:35:30 -0700 (PDT) Date: Tue, 5 May 1998 21:35:30 -0700 (PDT) Message-Id: <199805060435.VAA09179@piobaire.mines.uidaho.edu> Received: from k56-palm-02-06.ca.qnet.com ([207.155.33.158]) by koto.qnet.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 3-41930U500L2S100) with SMTP id AAA13411 for ; Tue, 5 May 1998 21:34:42 -0700 X-Sender: jmc@pop3.av.qnet.com X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: glowbugs@piobaire.mines.uidaho.edu From: JMcAulay Subject: GB> Q-Signals Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO When it comes to "Service Abbreviations" (AKA Q-Signals), one I'm rather surprised no one has mentioned recently is the ever-popular QLF? This, some may recall, is used when one wishes to enquire, "Are you sending with your left foot?" As an affirmative response, the abbreviation is, of course, simply followed by a period. 73 John WA6QPL From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 6 08:29:23 1998 X-UIDL: 320279374f55af860076d429f84d7de1 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id IAA24481 for ; Wed, 6 May 1998 08:29:22 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id FAA15139 for glowbugs-outgoing; Wed, 6 May 1998 05:03:33 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.xmission.com (mail.xmission.com [198.60.22.22]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id FAA15132 for ; Wed, 6 May 1998 05:03:29 -0700 (PDT) Received: from slc22h.modem.xmission.com (xmission.com) [166.70.9.22] by mail.xmission.com with esmtp (Exim 1.82 #2) id 0yX2uv-0003OS-00; Wed, 6 May 1998 06:03:22 -0600 Message-ID: <355052A7.3F5B58D0@xmission.com> Date: Wed, 06 May 1998 06:08:10 -0600 From: Dexter Francis Reply-To: cwest@xmission.com Organization: CWest Tube Sales X-Mailer: Mozilla 4.05 (Macintosh; I; PPC) MIME-Version: 1.0 To: michael silva , glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: --.- ...- . References: <199805052211.RAA06622@dfw-ix5.ix.netcom.com> Content-Type: text/plain; charset=us-ascii; x-mac-type="54455854"; x-mac-creator="4D4F5353" Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Gosh, I could even ID that one! (Therefore, I like it!) -df *** CWest - P.O. Box 22443 Salt Lake City, Utah 84122 *** *Visit our Web Page @ http://www.xmission.com/~cwest* From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 6 10:21:40 1998 X-UIDL: 197f9f3ad9edc3d59842f7001f1d666b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id KAA31376 for ; Wed, 6 May 1998 10:21:39 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA17103 for glowbugs-outgoing; Wed, 6 May 1998 06:52:40 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from getnet.com (gn2.getnet.com [207.254.1.12]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA17091 for ; Wed, 6 May 1998 06:52:35 -0700 (PDT) Received: from localhost (jackmead@localhost) by getnet.com (8.8.8/8.8.7) with SMTP id GAA16152; Wed, 6 May 1998 06:52:22 -0700 (MST) Date: Wed, 6 May 1998 06:52:22 -0700 (MST) From: Jack Meadows To: John Moriarity cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: [BoatAnchors] "Q" signals In-Reply-To: <3.0.16.19980505171033.69377b82@SOCAL.WANet.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO What is the signal for QQQ? de, W7QQQ Jack p.s. maybe I shouldn't ask. On Tue, 5 May 1998, John Moriarity wrote: > Be careful when making up Q signals. According to an article > I read by Kenneth Brown, G0PSW, there are Q signals before QR > that (were?) used by the British Army. For example, QAU meant > "I am waterlogged". > > My special favorite is QGG, meaning "send the pony by the > next train". > > 73, > > John, K6QQ > > > From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 6 12:55:33 1998 X-UIDL: d590bafb2b68f4c3ac20a5e9d509470b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id MAA12486 for ; Wed, 6 May 1998 12:55:31 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA19939 for glowbugs-outgoing; Wed, 6 May 1998 09:20:57 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from tntech.edu (SYSTEM@gemini.tntech.edu [149.149.11.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA19929 for ; Wed, 6 May 1998 09:20:51 -0700 (PDT) Received: from [149.149.25.17] ("port 2048"@fh303.chem.tntech.edu) by tntech.edu (PMDF V5.1-10 #24187) with ESMTP id <01IWPMC7SBQ48WXTS9@tntech.edu> for glowbugs@piobaire.mines.uidaho.edu; Wed, 6 May 1998 11:20:04 CDT Date: Wed, 06 May 1998 11:22:01 -0500 From: "Dr. Dan Swartling" Subject: GB> Q signals To: glowbugs@piobaire.mines.uidaho.edu Message-id: MIME-version: 1.0 Content-type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO According to the Allied Communications Publication 131 (B), amended: QBA - What is the horizontal visibility at (place)? The horizontal visibility at (place) at ..... hours is (distance figures and units). There is no listing for QAT. There is QAR - May I stop listening on the watch frequency for ... minutes? and QAU - I am about to jettison fuel. and QAQ - Am I near a prohibited area? and QAP - Shall I listen for you on .... kHz (MHz)? and QAZ - Are you experiencing communications difficulties through flying in a storm? QOA to QQZ are reserved for the Maritime Services; however, no meanings have been assigned to date. This is why I occaisonally use QPP, as in "Have to go QPP AS K" which I am sure is a non-sanctioned usage. I rather like QBA but would hesitate to use it. I would use QAT without hesitating for a second. Any other comments? (Please forward this to the BA and GB lists for me. TNX) Dan ************************************************************************ * Dan Swartling DSwart@tntech.edu * * Assistant Professor of Chemistry djsx@woodlawn.uchicago.edu * * Tennessee Tech University DSwart@aol.com * * Cookeville, TN 38505 http://gemini.tntech.edu/~DSwart/ * * * * When life give you lemons, build a battery * ************************************************************************ From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 6 14:39:08 1998 X-UIDL: d3d2f7d4d7fd974d650212d111f8d0f4 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id OAA18897 for ; Wed, 6 May 1998 14:39:07 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA21828 for glowbugs-outgoing; Wed, 6 May 1998 10:58:00 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA21819; Wed, 6 May 1998 10:57:43 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Wed, 6 May 1998 10:57:43 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Conard Murray WS4S cc: Dr Dan Swartling , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Q signals In-Reply-To: <022701bd7910$e5e268e0$0a2a9595@tetrode.ece.tntech.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Hi Dan, > Congrats on the callsign ..... do you have a copy of the ACP 131(B)? > I think a bunch of guys would like to see that scanned and put on the web. > Conard I have a scanner. Sandy is sending me the ACP. Where do you guys want it and in what format? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 6 15:44:49 1998 X-UIDL: d77928162da37310b954e20f7df13277 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id PAA04504 for ; Wed, 6 May 1998 15:44:49 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA22730 for glowbugs-outgoing; Wed, 6 May 1998 12:11:30 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from dfw-ix8.ix.netcom.com (dfw-ix8.ix.netcom.com [206.214.98.8]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA22725 for ; Wed, 6 May 1998 12:11:25 -0700 (PDT) Received: (from smap@localhost) by dfw-ix8.ix.netcom.com (8.8.4/8.8.4) id OAA19939; Wed, 6 May 1998 14:10:22 -0500 (CDT) Date: Wed, 6 May 1998 14:10:22 -0500 (CDT) Message-Id: <199805061910.OAA19939@dfw-ix8.ix.netcom.com> Received: from val-ca3-46.ix.netcom.com(206.217.130.110) by dfw-ix8.ix.netcom.com via smap (V1.3) id rma019915; Wed May 6 14:10:09 1998 From: mjsilva@ix.netcom.com (michael silva) Subject: GB> Looking for info on beam-deflection tube mixers To: glowbugs@piobaire.mines.uidaho.edu To: boatanchors@listserv.tempe.gov Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi all, I'm thinking out my next project, a portable CW transceiver, and I'd like to know what you all know about using beam-deflection tubes (not the 7360 due to its cost, but I've got some 6ME8s floating around) as mixers and detectors. What exactly are the advantages in both mixer and detector service? I gather that they are fairly quiet -- true? Any other reason to use or not use them in either circuit application? 73, Mike, KK6GM From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 6 16:15:36 1998 X-UIDL: f7bcf1b09b76d213e0789a6b5a10909e Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id QAA30574 for ; Wed, 6 May 1998 16:15:35 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA23110 for glowbugs-outgoing; Wed, 6 May 1998 12:41:54 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp03.primenet.com (daemon@smtp03.primenet.com [206.165.6.133]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA23105 for ; Wed, 6 May 1998 12:41:49 -0700 (PDT) Received: (from daemon@localhost) by smtp03.primenet.com (8.8.8/8.8.8) id MAA11153; Wed, 6 May 1998 12:40:58 -0700 (MST) Received: from usr04.primenet.com(206.165.6.204) via SMTP by smtp03.primenet.com, id smtpd011126; Wed May 6 12:40:53 1998 Date: Wed, 6 May 1998 12:40:51 -0700 (MST) From: Chris Trask To: michael silva cc: glowbugs@piobaire.mines.uidaho.edu, boatanchors@listserv.tempe.gov Subject: Re: GB> Looking for info on beam-deflection tube mixers In-Reply-To: <199805061910.OAA19939@dfw-ix8.ix.netcom.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Wed, 6 May 1998, michael silva wrote: > Hi all, > > I'm thinking out my next project, a portable CW transceiver, and I'd > like to know what you all know about using beam-deflection tubes (not > the 7360 due to its cost, but I've got some 6ME8s floating around) as > mixers and detectors. What exactly are the advantages in both mixer > and detector service? I gather that they are fairly quiet -- true? > Any other reason to use or not use them in either circuit application? > Another envelope is the 6AR8. These tubes were very susceptible to magnetice fields (just like a CRT) and were usually shielded. For all intents and purposes, they are very much like a long-tailed pair, which is a differential pair of triodes having a common cathode which is then connected to the plate of a third tube used as a current source. For mixers, modulators, and synchronous detectors they're great. ,----------------------. Circuit Design for the / What's all this \ RF Impaired / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _ |/ Principal Engineer oo\ ATG Design Services (__)\ _ P.O. Box 25240 \ \ .' `. Tempe, Arizona 85285-5240 \ \ / \ \ '" \ Technical Editor, . ( ) \ QRP Quarterly '-| )__| :. \ QRP ARCI 9464 | | | | \ '. c__; c__; '-..'>.__ Email: ctrask@primenet.com http://www.primenet.com/~ctrask Graphics by Loek Frederiks From glowbugs-owner@piobaire.mines.uidaho.edu Thu May 7 00:54:30 1998 X-UIDL: afaab42a726d3f1c875ac9751f4cc6f6 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id AAA23920 for ; Thu, 7 May 1998 00:54:28 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA29756 for glowbugs-outgoing; Wed, 6 May 1998 21:18:44 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay1.Hawaii.edu (root@relay1.hawaii.edu [128.171.3.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA29751 for ; Wed, 6 May 1998 21:18:41 -0700 (PDT) Received: from uhunix4.its.Hawaii.Edu ([128.171.44.54]) by relay1.Hawaii.Edu with SMTP id <148513(7)>; Wed, 6 May 1998 18:17:54 -1000 Received: from localhost by uhunix4.its.Hawaii.Edu with SMTP id <216703(9)>; Wed, 6 May 1998 18:17:48 -1000 Date: Wed, 6 May 1998 18:17:44 -1000 From: Jeffrey Herman X-Sender: jeffreyh@uhunix4 To: Bill Hawkins cc: broehrig@admin.aurora.edu, keng@uidaho.edu, glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Glowbugs and QSK... In-Reply-To: <199805021634.LAA08029@citrus.iaxs.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Why not just add an extra set of contacts to your handkey? You can also use the key's gap adjusting screw (to the rear) as a NC contact point - great for muting your rcvr's speaker during key-down. Jeff KH2PZ (who has an antenna lead-in wires and speaker wires running to and from his key!) From glowbugs-owner@piobaire.mines.uidaho.edu Thu May 7 09:31:53 1998 X-UIDL: 28d2d147316965fdeea876a85a58f854 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id JAA14666 for ; Thu, 7 May 1998 09:31:52 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id FAA04874 for glowbugs-outgoing; Thu, 7 May 1998 05:57:01 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from tntech.edu (SYSTEM@gemini.tntech.edu [149.149.11.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id FAA04869 for ; Thu, 7 May 1998 05:56:57 -0700 (PDT) Received: from [149.149.25.17] ("port 2054"@fh303.chem.tntech.edu) by tntech.edu (PMDF V5.1-10 #24187) with ESMTP id <01IWQTHAI1588WY1ST@tntech.edu> for glowbugs@piobaire.mines.uidaho.edu; Thu, 7 May 1998 07:55:46 CDT Date: Thu, 07 May 1998 07:57:49 -0500 From: "Dr. Dan Swartling" Subject: GB> Q codes To: glowbugs@piobaire.mines.uidaho.edu Message-id: MIME-version: 1.0 Content-type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The ACP131(B) list can be found at: http://www.ac6v.com/pagel.html Lots of good stuff at this sight. Dan ************************************************************************ * Dan Swartling DSwart@tntech.edu * * Assistant Professor of Chemistry djsx@woodlawn.uchicago.edu * * Tennessee Tech University DSwart@aol.com * * Cookeville, TN 38505 http://gemini.tntech.edu/~DSwart/ * * * * When life give you lemons, build a battery * ************************************************************************ From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 8 14:44:19 1998 X-UIDL: 543aa4bcdcf7ffe60252096fc215e4a4 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id OAA18052 for ; Fri, 8 May 1998 14:44:18 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA25645 for glowbugs-outgoing; Fri, 8 May 1998 11:09:41 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f27.hotmail.com [207.82.250.38]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA25640 for ; Fri, 8 May 1998 11:09:36 -0700 (PDT) Received: (qmail 19197 invoked by uid 0); 8 May 1998 18:08:46 -0000 Message-ID: <19980508180846.19196.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 08 May 1998 11:08:46 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> RAL Schematic Content-Type: text/plain Date: Fri, 08 May 1998 11:08:46 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have tried to download the ral7schematic.ps.gz from the following site but it seems to be munged or something. Anyone know where I can get a copy that is readable (I get PS errors in GhostScript and can't print it out on a PS printer either)? http://www.mines.uidaho.edu/ftp/pub/Glowbugs/Military/ Thanks, Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 9 01:20:38 1998 X-UIDL: 88a5a199548cb7e2b5c2db367fcb0f17 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id BAA00424 for ; Sat, 9 May 1998 01:20:38 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA07641 for glowbugs-outgoing; Fri, 8 May 1998 21:57:16 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id VAA07636 for ; Fri, 8 May 1998 21:57:12 -0700 (PDT) Received: from indy3.indy.net (root@indy3.indy.net [199.3.65.14]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id XAA11728; Fri, 8 May 1998 23:57:42 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1] (may be forged)) by indy3.indy.net (8.8.7/8.8.7) with SMTP id XAA04264; Fri, 8 May 1998 23:57:39 -0500 (EST) Date: Fri, 8 May 1998 23:57:37 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy3 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> Dayton.... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Gang! I have been hoping to get to Dayton (the Hamvention, that is) again this year, and have been keeping track of the other listfolks who will be there, especially those with Actual Spaces, as one usually has a 50-50 chance of meetin' 'em. But as of now, it's looking iffy, thanks to a long dull story which I will not tell, as it involves solid-state and some detail design work of which my opinions might be actionable if expressed in print. (In many ways, the usual drill for my line of work). There's an off chance I might be able to work out going there *Friday* and that leads to a question for the More Experienced Tube-slingers: how's the flea market at Dayton on Friday, typically? 73, --Bobbi (Pounding my head against the wall? Why no, I'm not pounding my head against the wall. Besides, it feels so good when I stop). KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 9 01:58:44 1998 X-UIDL: 5b8b2eba9c10cb14751027dd2374ca72 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id BAA32634 for ; Sat, 9 May 1998 01:58:43 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA08149 for glowbugs-outgoing; Fri, 8 May 1998 22:29:25 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from enterprise.powerup.com.au (enterprise.powerup.com.au [203.32.8.37]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id WAA08144 for ; Fri, 8 May 1998 22:29:19 -0700 (PDT) Received: (qmail 4704 invoked from network); 9 May 1998 05:28:32 -0000 Received: from ts5802.powerup.com.au (HELO mkelly) (202.139.238.194) by enterprise.powerup.com.au with SMTP; 9 May 1998 05:28:32 -0000 Message-ID: <3553E979.2CA1@powerup.com.au> Date: Sat, 09 May 1998 15:28:25 +1000 From: Murray Kelly Reply-To: mkelly@powerup.com.au Organization: M P Kelly (Med) P/L X-Mailer: Mozilla 3.01C-NSCP (Win95; I) MIME-Version: 1.0 To: "Roberta J. Barmore" CC: BA , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Dayton.... References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Roberta J. Barmore wrote: > how's the flea market at Dayton on Friday, typically? > > 73, > --Bobbi If it's not raining it's OK. I had to jump 6" deep 'puddles' on the Fri I was there. :-( ****************************************************************** * Murray Kelly vk4aok mkelly@powerup.com.au * * 29 Molonga Ter. / Graceville/ QLD. 4075/ Australia * * ph/fax Intl+ 61 7 3379 3307 * ****************************************************************** From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 9 04:06:57 1998 X-UIDL: eb46e7e270311e26a53ebcadd1b839bf Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id EAA17431 for ; Sat, 9 May 1998 04:06:55 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id AAA09650 for glowbugs-outgoing; Sat, 9 May 1998 00:42:33 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sw2031.ki.icl.se (sw2031.ki.icl.se [140.150.92.61]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id AAA09644 for ; Sat, 9 May 1998 00:42:29 -0700 (PDT) Received: from winnie (winnie.pc.fujitsu.se [140.150.83.170] (may be forged)) by sw2031.ki.icl.se (8.8.8/980217PRO) with SMTP id HAA02349; Sat, 9 May 1998 07:40:55 GMT Message-ID: <355407B2.1553@algonet.se> Date: Sat, 09 May 1998 09:37:22 +0200 From: Jan Axing Reply-To: janax@algonet.se Organization: Messy X-Mailer: Mozilla 3.0Gold (Win95; I) MIME-Version: 1.0 To: Ken Gordon CC: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> The Alexanderson alternator, more info. References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Ken Gordon wrote: > > > The Alexanderson alternator in Grimeton, Sweden will be on air May 28 > > at 0930 UTC and 1530 UTC on 17.2 kHz. > > Jan: > > How much power is this thing going to run, and what sort of antennas does > it have? I assume the mode will be CW. What sort of identifier are they > going to send? All 200 kW it can give but much of it will be consumed by the antenna losses. The call sign is SAQ and the mode is A1 (CW). The antenna is the original newly refurbished 1924 vintage system, a vertical with a giant radial system in the ground. Radiation resistance 2 ohms. There are six towers, all 127 meters tall spaced 380 meters. The tower carries the feeder to the six vertical radiators. In it's heyday, regular transmissions were done over the pool to the US east coast. Once upon the time there was a receiving antenna located close to Gothenburg but unfortunately it's gone. It was sort of a Beverage, very long. I think the receiver station building is preserved, thoo. There is a picture of the transmitting antenna on the web pages. > I am wondering if, by modifying my regennie to hear that far down, if I > could even hear that station over here? I used to listen to a lot of the > VLF stations from all over the world, but they were usually running a lot > of power and really big antennas, and I was using RAKs, an RBL, an R-389, > and the VLF version of the SRR-11 at the time. The standard approach over here is a wire, a diode, an audio oscillator and a hifi using the turntable input and keeping the dog outside :-) A little more is called for over there. On the east coast, a resonant loop antenna or even a ferrite rod perhaps coupled to existing ham antennas will do. You will need some luck in the 7 land. Propagation is ground wave so there will be a lot of losses over Canada. I would go backpacking far away from urban noise with a regenerator and a frame antenna in your place, maybe with a roll of wire to string up the trees, beverage style. Boy. I would like to key this beast once, just once... Jan, SM5GNN From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 9 22:14:45 1998 X-UIDL: f022842727c9ef82885c788ab666f3ad Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA09683 for ; Sat, 9 May 1998 22:14:44 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA21564 for glowbugs-outgoing; Sat, 9 May 1998 18:49:50 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from main.aeneas.net (root@main.aeneas.net [207.203.176.23]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id SAA21559 for ; Sat, 9 May 1998 18:49:46 -0700 (PDT) Received: from [207.203.177.59] (pmj344.aeneas.net [207.203.177.59]) by main.aeneas.net (8.6.12/8.6.9) with SMTP id UAA14235; Sat, 9 May 1998 20:51:10 -0500 X-Sender: w5hvv@mail.aeneas.net Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sat, 9 May 1998 20:49:21 +0600 To: BOATANCHORS@LISTSERV.TEMPE.GOV, glowbugs@piobaire.mines.uidaho.edu From: w5hvv@aeneas.net (Roderick M. Fitz-Randolph) Subject: GB> Thoughts of Yesteryear Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO In 1955-56 I was on Grand Turk Island, working for RCA Service Co. as a Timing Technician, and was operating as VP5RR with an NC-173, a Harvey- Wells TBS-50C and a 700 foot long wire, 10 feet off the ground. Got my first DXCC from there in less than a year... can you imagine? One day, while working on the modulator on the TBS-50, Two RCA Range Managers (Bill Coulter and another) walked in to the Hamshack. I hurriedly twisted some wire ends together, cranked up the gear and called CQ. I had a pipeline to Europe from Grand Turk back in those days and a CT1 answered my call. He was 40 over 9. Remember, this was the days of AM and carriers and things like that.... and it was the days of one of the highest sunspot cycles in history. Bill Coulter and the other Range Manager were totally impressed..... and so, when I told them I wanted to be the first RCA personnel to hit Ascension Island (even if I had to sweep the floors, there), it got favorable notice. Soon thereafter, I was summoned to Patrick AFB and was prepped to become the first permanent change of station (PCS) personnel to go to Ascension. As I got on the ancient DC4 and was about to head for Ascension, via Trinidade and Recife, Brazil, I was asked by Bill Coulter to reassure him that I could indeed copy code. That was news to me. I had really gotten with the microphone after passing my test as W5HVV and I could and did work some CW from Grand Turk but I was nobody's CW traffic handler..... I was soon to learn, though. As we passed through Trinidade, I ventured into town and tried to purchase 2,000 rounds of .22 ammo for my 9-shot nickol plated H&R .22 pistol. That is grist for another tale! I almost got arrested for starting a revolution but got on the plane with 3,000, not 2,000, rounds of ammo. Boy, was the Resident Magistrate on Ascension surprised when I showed up with a pistol and 3,000 rounds of .22 ammo!! Amazingly enough, he (having an excellent command of the U.S. Constitution) granted me a license to "Keep and Bear Arms"!!!! I still have that priceless piece of paper somewhere! I had to create a firing range at the base of one of the very high hills of volcanic ash and fly a red flag made of a tea towel soaked in red food die but it worked. I sported my shiny pistol (in a leather holster I made) as I walked from the Comm Van to the firing range wearing nothing but the belt, holster, swimming trunks, and shoes. The St. Helenian natives gawked.... and gawked! Then, as any young (I was 25 at the time) ham would do, I applied to Mr. Williams, the Resident Magistrate, for an amateur radio license so that I could operate from Ascension. I had sold my TBS-50 and NC-173 to another ham on Grand Turk and had purchased a 75A3 and 32V3 for the trip to Ascension. I used the 75A3 in place of the somewhat shaky NC-183Ds that RCA supplied me with and I found that I could drive the BC-610 with the 32V3 just beautifully. I was quite pleased that, with some discerning care, I could interpolate to the nearest 100 cycles on the dial of the 75A3 and 32V3 when the 75A3 was calibrated with the crystal oscillator that I calibrated against WWV by a wire brought from the crystal oscillator on the 75A3 to close proximity to the NC-183D. Jury-rigged, but it worked well. So it was with some surprise that Mr. Williams, the Resident Magistrate, read to me the requirements for becoming licensed as an amateur on Ascension Is in 1956. He informed me, in a very nice way, that I needed to have an absorbtion type wavemeter to tell what frequency on which my transmitter was transmitting. I couldn't believe my ears. I tried my best to explainto him that my 32V3 put out only a very pure signal with virtually no harmonic content, etc., etc., but to no avail. As I spoke to him, I felt the flush in my cheeks and the hair beginning to rise on the back of my neck. How in the name of Christ could the man responsible for the British Cable and Wireless, Ltd. on Ascension Island expect someone to use an absorbtion type wavemeter to check the frequency of the famous Collins 32V3?????? The conversation came to a faltering halt when I could not bring myself to lower my principles..... and thus, I never did get that much coveted ZD8 call! Talk about cutting off one's nose to spite his face. Nevertheless, I continued to use the 32V3 to drive the BC-610 on 7525 KHz and handle 5 letter code groups from the Navy AROIC to Patrick AFB and vice versa. I slept in the Comm Van, next to the runway on Ascension, behind the two BC-610s on an army cot. Communications with Patrick AFB took place in the late evening and soon after dawn. I built a 6 element wire beam for 7525 KHz that was suspended from four telephone poles with a wire suspension system on both sides. It worked quite well, considering that all I had to feed it with was EE8 twisted pair that laid on the ground! The beam never got more than 4 feet off the ground but worked as well as the high dipole I usually used. I went exploring a lot, while on Ascension in the 50's. I found a Browning air-cooled .50 caliber machine gun that had been in a wing of a plane that had augered into a hill at the end of the runway and, after soaking it in diesel fuel for four days, got it to where the bolt would go back and forth. I mounted it on a concrete pedestal in front of the quonset huts close to the rhombic antennas that were near one end of the runway. However, the British took a dim view of it (even tho the firing pin was sheared off and I had no ammo for it) and they confiscated it. Some people have little sense of humor. I have many, many tales of Ascension I could tell.... such as the ZBM code I was sent once from the radioman on an incoming DC4.... and how I handled that one..... pretty cool. Also, how I managed to survive with only a scant 10 wpm capability when I first hit Ascension and the AFE70 ops at Patrick AFB in Florida were used to sending 30 wpm or better. Another story, another time. Hope I haven't caused any harsh feelings about relating my Ascension Island tales on the Reflector..... Just had to do it. All the talk about boat anchors and glowbugs just got my nostalgia juices flowing at top speed. Rod, N5HV w5Hvv@aeneas.net From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 9 11:58:23 1998 X-UIDL: c1965289f2428072aa4b0624b8717654 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id LAA02229 for ; Sat, 9 May 1998 11:58:22 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA14406 for glowbugs-outgoing; Sat, 9 May 1998 08:35:47 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo16.mx.aol.com (imo16.mx.aol.com [198.81.17.38]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA14400 for ; Sat, 9 May 1998 08:35:38 -0700 (PDT) Received: from MNHopkins@aol.com by imo16.mx.aol.com (IMOv14.1) id FEXIa00148 for ; Sat, 9 May 1998 11:34:21 -0400 (EDT) From: MNHopkins Message-ID: Date: Sat, 9 May 1998 11:34:21 EDT To: glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: GB> Dayton FM as existential experience Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 61 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The flea market at Dayton is an existential experience. Spreading out from the HARA Arena, the first rank is taken by two types of folks: Hardcore capitalists and opportunists who have figured out that it is cheaper and easier to take a space or two than try to park. (TIP: park at Salem Mall, no witches, and ride the bus -- BAs welcome on the bus). The variety of things offered is remarkable. A 6X20 trailer of hardline conductor was half enpty, or full, by late Saturday. Prices are also remarkable by Texas standards. When last I was there I was asked to find a HW-16 "if it is not too expensive." That is like meeting some one in Israel who is not a Jew -- they are there and they stand out. The only one even close was a rusty "as is" for $35 which my son, the 11-year-old KC5FDL and I left knowing that by Texas standards such a price would not wash. In fact, I bought just two receive converters on the trip, which was in '95 but second son is up this year so we will be there with the pet ferrets and all. Lore has it that prices fall Sunday, but I did not see that. This is the once a year opportunity for many and lots of things go at remarkable markup. WA5VJB, the CQ VHF columnist and Dayton habitue, says he reads the Dayton prices to be about 150% of the Arlington (Dallas) Hamcom. All that said, the bottomfeeding is OK. Lots of boxes under tables and still in trucks yield useful stuff at live with prices. In fact, that is where I have to shop as an Ameco CN-50 6M converter still on the table at $35 Sunday at is out of my reach. I cannot get $20 here. 73 de ab5L, michael in dallas, student of Tecraft and International (ICM) ham products and mementoes of Six Meters' Golden Age: 1957-58 Michael Hopkins Box 226841 Dallas, TX 75222 MNHopkins@AOL.com From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 9 12:11:36 1998 X-UIDL: 4a3d3d6171c8f8ec2d5797f43f82f6c6 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id MAA04059 for ; Sat, 9 May 1998 12:11:36 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA14717 for glowbugs-outgoing; Sat, 9 May 1998 08:49:26 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA14711; Sat, 9 May 1998 08:49:20 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sat, 9 May 1998 08:49:20 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Jan Axing cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> The Alexanderson alternator, more info. In-Reply-To: <355407B2.1553@algonet.se> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Thanks very much for the info, Jan. It is much appreciated. > > Boy. I would like to key this beast once, just once... > Boy......your are not the Alone Stranger in those sentiments!!!!!!!!! Ken From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 03:08:19 1998 X-UIDL: 2e4e87ef194b17aace70dd9660843df3 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id DAA16654 for ; Sun, 10 May 1998 03:08:18 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA24214 for glowbugs-outgoing; Sat, 9 May 1998 23:42:44 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from uhura.concentric.net (uhura.concentric.net [206.173.119.93]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA24209 for ; Sat, 9 May 1998 23:42:40 -0700 (PDT) Received: from marconi.concentric.net (marconi [206.173.119.71]) by uhura.concentric.net (8.8.8/(98/04/23 5.10)) id CAA03574; Sun, 10 May 1998 02:41:54 -0400 (EDT) [1-800-745-2747 The Concentric Network] Received: from ts005d08.alq-nm.concentric.net (ts005d08.alq-nm.concentric.net [206.173.164.116]) by marconi.concentric.net (8.8.8) id CAA13087; Sun, 10 May 1998 02:41:50 -0400 (EDT) Message-Id: <1.5.4.32.19980510063944.006ba71c@pop3.concentric.net> X-Sender: jdport@pop3.concentric.net X-Mailer: Windows Eudora Light Version 1.5.4 (32) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sun, 10 May 1998 00:39:44 -0600 To: w5hvv@aeneas.net, glowbugs@piobaire.mines.uidaho.edu From: DEVCOM Subject: Re: GB> Thoughts of Yesteryear Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Oh, but I LIKE these tall tales..... I think the .50 cal Browning was an especially nice touch. Those few I saw in VietNam were wicked looking, very "businesslike" looking machinery. I think the only ones I saw were mounted on pedestals overlooking the cabs on "Duece 'N Half" trucks for defense while motoring along the picturesque Ho Chi Minh trail and vicinities. I carried the PRC-25 manpack radio and a M-60 "... You're a radio expert, right? Here, you get to carry this one!" My MOS was 35M40, avionics electronics repair, later to make ssgt E6 as 35P40, so of course in true Army tradition our guys pulled KP and guard duty while our vans full of test equipment and service gear gathered dust. Repairs beyond replacing fuses and swapping "black boxes" were handed off to the next echelon. Bah. I made quite a few extra bucks repairing stereos and tape decks and other consumer electronics for my fellow GI's in Camp Eagle, just outside Hue and Phu Bai, without which I'd have put my expensive Army electronics repair training to precious little use. The 7.62 (.30 cal) machine gun was MUCH more fun to operate than the radio, even for a ham fanatick like me. We heard stories about some chopper pilots of the big Chinook birds who would take up their people to several thousand feet heights and "call home" on their HF rigs, via the funny looking zig-zag wire antennas mounted on the sides of the fuselage... but we never found one willing to take US for such a "ride". We DID have a good MARS station at Camp Eagle ("The All American Eagle" was a partial phonetic of their call) where we could walk only a mile or so across camp at about 2:00 AM when it would hopefully be daytime back home and we could call up our wives or families via friendly phone patches back in the USA. "I love you too, OVER OVER...." Bootlegging was a big thing over there. We had Armed Forces AM and FM stations playing music and news but much time, especially after hours, was spent using the comm radios such as the PRC-25 hooked to unauthorized homebrew antennas up high in the air over the comm repair van as CB-style chitchat, music, argument, etc stations. We'd hook up tape decks to special mike jumpers and adapters jury rigged so that we could play music and requests for a while and then chat for a while and log up a list of requests from the troops in listening mode without tape decks of their own. Occasionally late at night we'd hear a weak signal whispering very faintly, "LURPS" (Long Range Reconnaissance Patrols) thanking us for the music and making whispered requests, holed up somewhere on a remote Viet Cong trail waiting to ambush the bad guys, and making surreptitious calls back to camp to request "Inna Godda Da Vida" one more time. The "secret channel" was obtained by turning both channel selector knobs all the way to the extreme limit to the last channel, which never seemed to be used by anyone other than the "GI bootleg network". We always hoped we'd eventually make it back to "The World" and visit with each other legally, via the ham bands, CB, or some legal means. I've never heard from any of those other nuts since. Anyone ever talk to "Froggy" in the "Nam"? Another thing I always thought was highly stupid of the Army was their parts stock system. We had thousands of parts of all types, but they were all sealed inside foil lined green O.D. paper packets with ONLY a FEDERAL STOCK NUMBER on the outside of the pack, never anything indicating what the cat hair was actually inside the pack. Trying to look up FSN's for things like 1K ohm resistors in those pre-computer days was absolutely underwhelming. We wound up ripping dozens and dozens of packs partly open so we could see what was inside, often to no avail, especially since the stock numbers had no relation to the insides AND they were not sequential. That may be one of the worst fates we inflicted on the Viet Cong.... when we abandoned 'Nam in disgrace they had to sort through all that stuff trying to figure it out. Must have set their technology back 20 years or more. Jim W5AOX At 08:49 PM 5/9/98 +0600, you wrote: >In 1955-56 I was on Grand Turk Island, working for RCA Service Co. as a >Timing Technician, and was operating as VP5RR with an NC-173, a Harvey- >Wells TBS-50C and a 700 foot long wire, 10 feet off the ground. From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 10:28:00 1998 X-UIDL: 8fd7885c216da4c5355841f37fcc89fc Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id KAA31960 for ; Sun, 10 May 1998 10:28:00 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA27925 for glowbugs-outgoing; Sun, 10 May 1998 07:06:40 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo14.mx.aol.com (imo14.mx.aol.com [198.81.17.36]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA27920 for ; Sun, 10 May 1998 07:06:36 -0700 (PDT) Received: from MNHopkins@aol.com by imo14.mx.aol.com (IMOv14.1) id CJCDa15187; Sun, 10 May 1998 10:05:09 -0400 (EDT) From: MNHopkins Message-ID: <31ff5c30.3555b416@aol.com> Date: Sun, 10 May 1998 10:05:09 EDT To: jdport@concentric.net Cc: glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: GB> M-60 + Manpack = testosterone Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 61 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Jim Don't know how much a Manpack '25 radio weighed, but a M-60 is 29 pounds dry and about 6 feet long -- it was some of those the Feds were using as the excuse to get a warrant to raid David Koeresh's Mt. Carmel. Affidavit said there was danger they would "destroy the evidence." Cannot think how. Maybe a tank? Anyway, we salute you. We were all tougher back then but to carry a M-60 and something else was tough indeed. 73 de ab5L who had dangerous duty too...college campus. From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 14:32:54 1998 X-UIDL: 8e0150a02a82d139114795969ef8782c Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id OAA25260 for ; Sun, 10 May 1998 14:32:54 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA29721 for glowbugs-outgoing; Sun, 10 May 1998 11:09:27 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA29716 for ; Sun, 10 May 1998 11:09:24 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sun, 10 May 1998 11:09:24 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Receivers... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have been studying my 1956 ARRL Handbook the last few days. I do this just for the pure enjoyment of it. The receiver section is kind of fun. There is a "one" tube regennie, a 3 tube 2 bander, and a 5 tube double-conversion 2 bander (80 and 40). The 3 tube 2 bander is a repackaged Jones Super Gainer. Interesting. The 5 tube job uses a regen detector and provides single-signal reception on CW with a final IF of 100 kHz. Neat. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:34:04 1998 X-UIDL: ddb926ab5f25471e19a17048cb5f876d Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA19904 for ; Sun, 10 May 1998 22:34:03 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA03454 for glowbugs-outgoing; Sun, 10 May 1998 18:55:00 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA03441 for ; Sun, 10 May 1998 18:54:54 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id VAA07518 for ; Sun, 10 May 1998 21:54:16 -0400 (EDT) Message-Id: <199805110154.VAA07518@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 21:51:24 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> Re: "Q" signals for use of antique rigs? Reply-to: bry@mnsinc.com Priority: normal In-reply-to: <354F51FB.F4BAD285@xmission.com> X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 5 May 98 at 11:53, Dexter wrote: > QUQ - Shall I train my searchlight nearly vertical on a cloud, > occulting if possible and, if your aircraft is seen, > deflect the beam up-wind on on the water or land, to > facilitate your landing? Roll on the floor laughing VERY loudly! That is the BEST Q-signal ever!!! They should have added a few more details! ZUT es ZAO!! Bry, AF4K **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:33:04 1998 X-UIDL: 1193f047ba1781a52c669a4919dc53a6 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA26416 for ; Sun, 10 May 1998 22:33:03 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA03462 for glowbugs-outgoing; Sun, 10 May 1998 18:55:04 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA03448 for ; Sun, 10 May 1998 18:54:57 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id VAA07521; Sun, 10 May 1998 21:54:18 -0400 (EDT) Message-Id: <199805110154.VAA07521@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: raylarue@gte.net, Boatanchors-qth , glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 21:51:25 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? Reply-to: bry@mnsinc.com Priority: normal References: <199805051605.MAA23608@relay.mnsinc.com> In-reply-to: X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 5 May 98 at 9:53, Ken wrote: > Say, Bry, I worked W7ZFB last night on 7051 or so. He was 599 into > Moscow despite a) QRN (a storm building up), and b) his 40 watts > from the Elmac pair. This about 0300. Well done, Ken - I am listening on 3579 and it is QUIET, except fopr some QRN crashes! No sigs at all! I QNI'd to a net earlier on about 3583 or so.They were in Western PA and heard me fine of course. **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:34:49 1998 X-UIDL: 3b92a9d514e2cf4bac8c5c4caf00faf2 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA24812 for ; Sun, 10 May 1998 22:34:48 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA03463 for glowbugs-outgoing; Sun, 10 May 1998 18:55:05 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA03451 for ; Sun, 10 May 1998 18:54:58 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id VAA07526; Sun, 10 May 1998 21:54:19 -0400 (EDT) Message-Id: <199805110154.VAA07526@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: Boatanchors-qth , glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 21:51:26 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> Re: [BoatAnchors] "Q" signals for use of antique rigs? Reply-to: bry@mnsinc.com Priority: normal In-reply-to: <354BDCAD.53E4F180@gte.net> X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO BY the way guys - does anyone plan on being on the air for the VINTAGE FIELD DAY activity that is being publicized by ELECTRIC RADIO? We are trying to get a group together to fire up some rigs portable on AM and CW over at NIST in Gaithersburg that weekend, but need to borrow a Genny! ZUT es ZAO! Bry, AF4K On 2 May 98 at 22:55, Ray wrote: > During field day, members of AReU (East Tampa), are planning on > firing up a couple classic and antique rigs. It will be a great > opportunity for new hams to see a little of our "roots" in operation > and for old hams to be reminded of some of the enjoyable times in > the past. One of our rigs is a compact one tube, WW 2 spy rig. It > is xtal controlled and runs only about 10 watts. > > Is there a "Q" signal which could be transmitted along with ones > call, to indicate the use of an classic/antique? I was thinking > like QBA or QAT? I think if I heard such an ID among all the other > QRM, I would try harder to make the contact. If not, anyone game > for coining one? 73, Ray, W4BYG > > > --- > Submissions boatanchors@qth.net > **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:35:47 1998 X-UIDL: c66db5b3efd59abee8a7ca479a2e6d70 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA28055 for ; Sun, 10 May 1998 22:35:46 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA03532 for glowbugs-outgoing; Sun, 10 May 1998 18:57:41 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA03527 for ; Sun, 10 May 1998 18:57:37 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id VAA07605; Sun, 10 May 1998 21:57:00 -0400 (EDT) Message-Id: <199805110157.VAA07605@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: glowbugs@piobaire.mines.uidaho.edu, boatanchors@listserve.tempe.gov Date: Sun, 10 May 1998 21:54:11 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> "Q" signals for use of antique rigs? Reply-to: bry@mnsinc.com Priority: normal In-reply-to: <199805052211.RAA06622@dfw-ix5.ix.netcom.com> X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 5 May 98 at 17:11, michael wrote: > I've wanted to convey the same information myself. Since it's been > pointed out that QBA is already defined, how about QVT? Not defined > AFAIK; covers commercial, military and homebrew, big and small, as > long as it glows; and has a fabulous rhythm. Yes, Mike, I think in retrospect that QVT would be fine. I would have preferred QBA, but really QVT conveys it just as well, and if it is undefined then there is no confusion for those SWLs in Tanzania or on the banks of the Ganges, listening in to our BA/GB QSOs!!! ZUT es ZAO Bry, AF4K **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:37:57 1998 X-UIDL: ef8320dc14c111b42e2c42fa875da204 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA20901 for ; Sun, 10 May 1998 22:37:56 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA03832 for glowbugs-outgoing; Sun, 10 May 1998 19:08:31 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA03820 for ; Sun, 10 May 1998 19:08:20 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id WAA07981; Sun, 10 May 1998 22:07:39 -0400 (EDT) Message-Id: <199805110207.WAA07981@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: Dexter Francis Date: Sun, 10 May 1998 22:04:47 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> Re: --.- ...- . Reply-to: bry@mnsinc.com CC: glowbugs@piobaire.mines.uidaho.edu Priority: normal In-reply-to: <355052A7.3F5B58D0@xmission.com> X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 6 May 98 at 6:08, Dexter wrote: > Gosh, I could even ID that one! > (Therefore, I like it!) > > -df QVE? I guess that must mean, "Are you taking an amateur exam later today?" **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:39:26 1998 X-UIDL: f84654c8021a99ff85aad7f175fdb0d9 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA32354 for ; Sun, 10 May 1998 22:39:26 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA03825 for glowbugs-outgoing; Sun, 10 May 1998 19:08:26 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA03819 for ; Sun, 10 May 1998 19:08:19 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id WAA07978 for ; Sun, 10 May 1998 22:07:37 -0400 (EDT) Message-Id: <199805110207.WAA07978@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 22:04:47 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> "Q" signals Reply-to: bry@mnsinc.com Priority: normal In-reply-to: <3.0.16.19980505171033.69377b82@SOCAL.WANet.com> X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I haven't had this much fun in ages! These Q-signals could get really dangerous if we have a QSO on the amateur bands with a British army unit (very unlikely I know!) On 5 May 98 at 17:14, John wrote: > Be careful when making up Q signals. According to an article > I read by Kenneth Brown, G0PSW, there are Q signals before QR > that (were?) used by the British Army. For example, QAU meant > "I am waterlogged". > My special favorite is QGG, meaning "send the pony by the > next train". Ah but John - what about these: QCD? - "Can you please send your next transmission via the CD player?" QIK? - "Am I sending too fast?" QIT - "Please end all transmissions immediately!" QAK? - "Is that a duck I hear in the background?" QAX? - "Are there SEVERAL ducks in the background?" QID? - "Have you got any money we can borrow?" QAB - "Please hail a taxi for us." QAT - "Please check for a feline laying across your key contacts" QAV? - "Are you transmitting from underground?" QIL - "Please take notes with pen and ink." QIN? - "Are you transmitting from Eskimo country?" QIP - "Please send more jokes." QIR? - "Are you a member of the Lambda Club?" QIV? - "Is the operator's sending-hand shaking too much?" and my favourite one: QVC? - "Are you wearing any nice inexpensive jewelry that you paid too much for without first having seen it?" - sorry, couldn't resist! **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:39:29 1998 X-UIDL: 0516132fb557c33a081219d6cdcc46e2 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA04922 for ; Sun, 10 May 1998 22:39:28 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA03929 for glowbugs-outgoing; Sun, 10 May 1998 19:09:46 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA03923 for ; Sun, 10 May 1998 19:09:41 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id WAA08010; Sun, 10 May 1998 22:08:53 -0400 (EDT) Message-Id: <199805110208.WAA08010@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: Jack Meadows , glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 22:06:05 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: GB> Re: [BoatAnchors] "Q" signals Reply-to: bry@mnsinc.com Priority: normal References: <3.0.16.19980505171033.69377b82@SOCAL.WANet.com> In-reply-to: X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 6 May 98 at 6:52, Jack wrote: > What is the signal for QQQ? It means, "Do you have difficulty with stammering?" :-) **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:42:50 1998 X-UIDL: 0348a62c8deff7d20bdbd5b71da7c79b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA27050 for ; Sun, 10 May 1998 22:42:49 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA04196 for glowbugs-outgoing; Sun, 10 May 1998 19:17:07 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA04188 for ; Sun, 10 May 1998 19:17:03 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id WAA08259 for ; Sun, 10 May 1998 22:16:25 -0400 (EDT) Message-Id: <199805110216.WAA08259@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 22:13:36 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: GB> Q signals Reply-to: bry@mnsinc.com Priority: normal In-reply-to: X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 6 May 98 at 11:22, Dr. Dan wrote: > According to the Allied Communications Publication 131 (B), amended: > There is QAR - May I stop listening on the watch frequency for ... > minutes? Gosh and I though that one was "Can you arrange ground transportation?" **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:51:02 1998 X-UIDL: d5bd602175aa9ffe0f1f46ba1b4e6e70 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA21676 for ; Sun, 10 May 1998 22:51:01 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA04236 for glowbugs-outgoing; Sun, 10 May 1998 19:17:34 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA04229 for ; Sun, 10 May 1998 19:17:30 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id WAA08283; Sun, 10 May 1998 22:16:48 -0400 (EDT) Message-Id: <199805110216.WAA08283@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: Ken Gordon , ws4s@INFOAVE.NET Date: Sun, 10 May 1998 22:13:36 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: GB> Q signals Reply-to: bry@mnsinc.com CC: glowbugs@piobaire.mines.uidaho.edu Priority: normal References: <022701bd7910$e5e268e0$0a2a9595@tetrode.ece.tntech.edu> In-reply-to: X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 6 May 98 at 10:57, Ken wrote: > > Hi Dan, > > Congrats on the callsign ..... do you have a copy of the ACP 131(B)? > > I think a bunch of guys would like to see that scanned and put on the web. > > Conard > > I have a scanner. Sandy is sending me the ACP. Where do you guys > want it and in what format? > > Ken W7EKB How about a plain text file or an html file... it could go straight onto the web that way and folks can retrieve it and use whatever format they wish... **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 22:52:31 1998 X-UIDL: 17dad60e3738849d875ab78daedb4dc1 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id WAA09878 for ; Sun, 10 May 1998 22:52:30 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA04263 for glowbugs-outgoing; Sun, 10 May 1998 19:17:43 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA04238 for ; Sun, 10 May 1998 19:17:34 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id WAA08263; Sun, 10 May 1998 22:16:27 -0400 (EDT) Message-Id: <199805110216.WAA08263@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 22:13:38 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> Glowbugs and QSK... Reply-to: bry@mnsinc.com CC: Jeffrey Herman , broehrig@admin.aurora.edu, keng@uidaho.edu, glowbugs@piobaire.mines.uidaho.edu, bill@iaxs.net Priority: normal References: <199805021634.LAA08029@citrus.iaxs.net> In-reply-to: X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO A small favor: Can we ask everyone to use the regular GLOWBUGS address in their TO line, instad of in the CC: line? It would make it a lot easier to reply, rather than have to dig out the address from a string of them. On 6 May 98 at 18:17, Jeffrey wrote: > Why not just add an extra set of contacts to your handkey? You can > also use the key's gap adjusting screw (to the rear) as a NC contact > point - great for muting your rcvr's speaker during key-down. > Jeff KH2PZ (who has an antenna lead-in wires and speaker wires > running to and from his key!) This is fine for those that love glass arm and send for hours on end with a straight key! For the rest who use automatic keyers we need ideas! I am not comfortable with noisy relays and the contacts on most of the Radio Shark junk will not key the cathode current on a Valiant for long before they weld! **************************************************** *** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA * ** E-mail to: bry@mnsinc.com * *** ICQ 6124470 *** ** http://www.mnsinc.com/bry/ * **************************************************** AM International #1024, TENTEN #13582. GRID FM19. Rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Harvey Wells Bandmaster, Drake 2 C. TEN-TEN #13582, DXCC #17763, Bicentennial WAS From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 10 23:07:53 1998 X-UIDL: 6bad0ad6fc9debc38c471a88045102a1 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id XAA29863 for ; Sun, 10 May 1998 23:07:52 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA04992 for glowbugs-outgoing; Sun, 10 May 1998 19:39:15 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay.mnsinc.com (relay1.mnsinc.com [206.55.3.25]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA04974 for ; Sun, 10 May 1998 19:39:10 -0700 (PDT) Received: from COMPUTER (bry.mnsinc.com [206.239.150.65]) by relay.mnsinc.com (8.8.5/8.7.3) with SMTP id WAA08735 for ; Sun, 10 May 1998 22:38:31 -0400 (EDT) Message-Id: <199805110238.WAA08735@relay.mnsinc.com> Comments: Authenticated sender is From: "Brian Carling" Organization: http://www.mnsinc.com/bry/ To: glowbugs@piobaire.mines.uidaho.edu Date: Sun, 10 May 1998 22:35:43 -0400 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> 'Way back when Reply-to: bry@mnsinc.com Priority: normal In-reply-to: <199804290036.RAA27323@piobaire.mines.uidaho.edu> X-mailer: Pegasus Mail for Windows (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO But... television was invented by the Scotsman, John Logie-Baird! From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 02:24:25 1998 X-UIDL: 0dbba5067bce111851d89cbab3ab905e Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id CAA08670 for ; Mon, 11 May 1998 02:24:25 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA06876 for glowbugs-outgoing; Sun, 10 May 1998 22:57:54 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id WAA06868; Sun, 10 May 1998 22:57:46 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sun, 10 May 1998 22:57:46 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Brian Carling cc: ws4s@INFOAVE.NET, glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Q signals In-Reply-To: <199805110216.WAA08283@relay.mnsinc.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > > How about a plain text file or an html file... it could go straight > onto the web that way and folks can retrieve it and use whatever > format they wish... Zounds....good to me. Ken From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 02:57:18 1998 X-UIDL: a5d04e34304f027192cddb5baba889a4 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id CAA06855 for ; Mon, 11 May 1998 02:57:17 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA07216 for glowbugs-outgoing; Sun, 10 May 1998 23:30:51 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from uhura.concentric.net (uhura.concentric.net [206.173.119.93]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA07211 for ; Sun, 10 May 1998 23:30:45 -0700 (PDT) Received: from cliff.concentric.net (cliff [206.173.119.90]) by uhura.concentric.net (8.8.8/(98/04/23 5.10)) id CAA22847; Mon, 11 May 1998 02:29:58 -0400 (EDT) [1-800-745-2747 The Concentric Network] Received: from ts003d22.alq-nm.concentric.net (ts003d22.alq-nm.concentric.net [206.173.164.82]) by cliff.concentric.net (8.8.8) id CAA09690; Mon, 11 May 1998 02:29:56 -0400 (EDT) Message-Id: <1.5.4.32.19980511062735.0068a8bc@pop3.concentric.net> X-Sender: jdport@pop3.concentric.net (Unverified) X-Mailer: Windows Eudora Light Version 1.5.4 (32) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Mon, 11 May 1998 00:27:35 -0600 To: glowbugs@piobaire.mines.uidaho.edu From: DEVCOM Subject: Re: GB> 'Way back when Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 10:35 PM 5/10/98 -0400, you wrote: >But... television was invented by the Scotsman, John Logie-Baird! > Well...... wouldja care to include any docs or data on this heresy?? First I've heard of it, unless of course you refer to RCA's attempts to claim it was invented "in-house". Jim W5AOX ... ardent admirer of the small guys like Philo Pharnsworth and Edwin Armstrong ... From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 11:45:42 1998 X-UIDL: cbed0a18c2b1fdc37a63db27505708ff Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id LAA06501 for ; Mon, 11 May 1998 11:45:41 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA12285 for glowbugs-outgoing; Mon, 11 May 1998 08:12:25 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from zeus.maxtor.com (zeus.maxtor.com [134.6.32.3]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA12280 for ; Mon, 11 May 1998 08:12:22 -0700 (PDT) Received: from Longmont64.Maxtor.COM (longmont64.mlm.maxtor.com [134.6.79.210]) by zeus.maxtor.com (8.6.9/8.6.9) with SMTP id JAA06372 for ; Mon, 11 May 1998 09:11:19 -0600 Received: by Longmont64.Maxtor.COM with VINES-ISMTP; Mon, 11 May 98 9:11:26 MDT Date: Mon, 11 May 98 9:11:25 MDT Message-ID: X-Priority: 3 (Normal) To: From: "Mark Dittmar" Reply-To: Subject: GB> QSK for glowbugs X-Incognito-SN: 368 X-Incognito-Version: 4.11.23 MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello- I'm not sure if anyone has mentioned this one yet, but there is a simple circuit in "Understanding Amateur Radio" ( 1977, I think ) that uses a single 6AH6 as a switch tube and a minimum of components to implement full QSK. It's quite slick- I think I will build one. I think the same circuit may even be in the 1992 ARRL handbook. 73, Mark Dittmar AB0CW From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 12:58:09 1998 X-UIDL: 03d44c1c20989dfce2bc137097b46f58 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id MAA14468 for ; Mon, 11 May 1998 12:58:07 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA13193 for glowbugs-outgoing; Mon, 11 May 1998 09:12:59 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from tigris.netnet.net (tigris.netnet.net [198.70.64.210]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA13188 for ; Mon, 11 May 1998 09:12:56 -0700 (PDT) Received: from netnet.net (grayct-1-3.netnet.net [206.40.107.6]) by tigris.netnet.net (8.8.8/8.8.8) with ESMTP id LAA00075 for ; Mon, 11 May 1998 11:11:45 -0500 (CDT) Message-ID: <35571EB4.EA70D785@netnet.net> Date: Mon, 11 May 1998 10:52:20 -0500 From: Dwight W9YQ Reply-To: dgbcms@netnet.net Organization: Oconto Machine & Tool X-Mailer: Mozilla 4.04 [en] (Win95; I) MIME-Version: 1.0 To: glowbugs Subject: GB> Wanted to swap for HF Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I've just acquired a several pieces of ham equipment from an estate. I'm interested in making a simple swap for a HF transceiver and/or HF amplifier in good condition. No money nor dollars need be involved, I'm willing to meet 1/2-way, within a day or so of travel from Northeastern Wisconsin (near Green Bay), depending on the offer. Make me an offer! What have you got? Will take the first reasonable offer received for the lot, cash or rig! Swan HF-700S SS-16B 3.5-28Mhz, 1979 vintage, tube type transceiver with PSU-3A power supply and manual, cosmetically mint, receives great, output is low on transmit. Heathkit HR-10B receiver with manual, cosmetically mint, seems to work Heathkit SB-300 receiver, has the (3) filters, cosmetically mint, seems work, with manual, no power cord Heathkit SB-400 transmitter, with manual, cosmetically mint, lights up, haven't tested transmit as it don't have the cables needed for inter-connection to the SB-300 for tranceiving, also no power cord Heathkit HD-1416 Code Practice Oscillator, no manual, works Ramsey E-Z Key CMOS CW Keyer Model no. CW-7 with manual and matching case, works Ramsey FHT-1 Fox-Hunt, 2 Meter, 5W Transmitter, no case, 80% assembled, no manual Ramsey AA-7 All Band HF, VHF, UHF Active Antenna, assembled, manual, no case Ramsey 40 meter QRP, HR-40, all mode receiver, assembled, manual, matching Case and Knob Set, works Ramsey 40 meter, QRP-40, 1 watt, CW Transmitter, assembled, with manual and Matching Case and Knob Set Swan SWR-1A SWR/Watt meter 100W,3.5 to 150 Mhz at 1000 watts Radio Shack Digital SWR/Power Meter, rated at 2000 watts, Cat. 21-257 Radio Shack SWR/Power Meter, rated at 2000 watts, Cat. 21-524 Zoom 28K Internal Fax Modem and a 14.4 Fax/Voice Internal Modem June 1992 Sam Amateur Data base on 3-1/2 disks Several QRZ CD-ROM's, Jan 1996 vol. 6, QRZ CD-ROM Dec 1996 vol. 8, QRZ CD-ROM Apr 1997, vol. 9 call sign database Hustler Mobile Ant System includes MO-1 fold over mast, standard resonators for 80, 40, 15, and 10 meters, SSM-3 Stainless Spring, VP-1 Tri-band Adapter, working condition Carolina Bug Katcher 10 through 40 meters with IM-1 Inducti-Match with docs, working condition Butternut HF6V vertical 80, 40, 30, 20, 15, 10m with docs, in working condition Pro-Am HF Mobile antenna for 40 meters PHF-40 (similar to a Hamstick) Either e-mail me or call at 906-826-7422. -- 73 ... Dwight ... de W9YQ From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 12:38:20 1998 X-UIDL: 9cb0894ccec7ebee04e9a59441ab0e1f Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id MAA21296 for ; Mon, 11 May 1998 12:38:19 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA13085 for glowbugs-outgoing; Mon, 11 May 1998 09:08:36 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA13080; Mon, 11 May 1998 09:08:31 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 11 May 1998 09:08:31 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Mark Dittmar cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> QSK for glowbugs In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Hello- > > I'm not sure if anyone has mentioned this one yet, but there is a > simple circuit in "Understanding Amateur Radio" ( 1977, I think ) that > uses a single 6AH6 as a switch tube and a minimum of components to > implement full QSK. It's quite slick- I think I will build one. I think > the same circuit may even be in the 1992 ARRL handbook. > > 73, > > Mark Dittmar > AB0CW Could you, by any chance, mail me a copy of that article so I can put it on my web page for all here to access? Ken Gordon W7EKB 226 N. Washington St. Moscow, Idaho 83843 (208)-882-8745 From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 13:36:13 1998 X-UIDL: 5bce9d2505eee4770486b55ae3cd16c9 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id NAA12698 for ; Mon, 11 May 1998 13:36:13 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA13865 for glowbugs-outgoing; Mon, 11 May 1998 09:51:56 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from dogbert.xroads.com (dogbert.xroads.com [206.222.124.36]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA13860 for ; Mon, 11 May 1998 09:51:52 -0700 (PDT) Received: from wturansk-mobl (slip51.xroads.com [206.222.125.85]) by dogbert.xroads.com (8.8.5/8.8.5) with SMTP id JAA04541; Mon, 11 May 1998 09:51:24 -0700 (MST) Message-Id: <3.0.5.32.19980511095049.01190430@mail.xroads.com> X-Sender: turansky@mail.xroads.com X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Mon, 11 May 1998 09:50:49 -0700 To: boatanchors@theporch.com, glowbugs@piobaire.mines.uidaho.edu, BOATANCHORS@LISTSERV.TEMPE.GOV From: Walt Turansky Subject: GB> WTB: 1L10 Spectrum Analyzer Plug-in Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Jose's posting reminded me that I've been looking for a Tek 1L10 Spectrum Analyzer (1 to 36 MHz) Plug-in for quite a while. If anyone has one in working condition that they would like to part with please send me an email. 73 de KW7WT, Walt From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 14:44:01 1998 X-UIDL: cbe00466fd967c83dd8eacb7a63dffc9 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id OAA10740 for ; Mon, 11 May 1998 14:43:57 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA15747 for glowbugs-outgoing; Mon, 11 May 1998 11:05:02 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from dewdrop2.mindspring.com (dewdrop2.mindspring.com [207.69.200.82]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA15739 for ; Mon, 11 May 1998 11:04:59 -0700 (PDT) Received: from default (user-37kb6jf.dialup.mindspring.com [207.69.154.111]) by dewdrop2.mindspring.com (8.8.5/8.8.5) with SMTP id OAA20474 for ; Mon, 11 May 1998 14:04:38 -0400 (EDT) Message-Id: <3.0.1.32.19980511140414.00695424@pop.mindspring.com> X-Sender: k4oah@pop.mindspring.com X-Mailer: Windows Eudora Light Version 3.0.1 (32) Date: Mon, 11 May 1998 14:04:14 -0400 To: glowbugs@piobaire.mines.uidaho.edu From: Garey Barrell Subject: Re: GB> QSK for glowbugs Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Mark - You might want to look at the June 1957 article titled "A Novel Electronic TR Switch". The switch described in that article was available as a manufactured unit in 1957, and I used one for a while with a Globe Chief 90 transmitter. The unit was mounted inside the transmitter, and coupled to the Hi-Z side of the transmitter tank coil. I worked quite well, and the only "proprietary" component was a toroidal (very rare in those days!) output transformer. The transformer was even sold separately for those who wished to build their own. The article in the 1992 Handbook has a description of the transformer. Needless to say, the original did NOT have the SS switching circuitry in it! Anyway, just a bit of "first-hand" experience with the product.. 73, Garey - K4OAH At 09:11 AM 5/11/98 MDT, you wrote: > > Hello- > > I'm not sure if anyone has mentioned this one yet, but there is a >simple circuit in "Understanding Amateur Radio" ( 1977, I think ) that >uses a single 6AH6 as a switch tube and a minimum of components to >implement full QSK. It's quite slick- I think I will build one. I think >the same circuit may even be in the 1992 ARRL handbook. > > 73, > > Mark Dittmar > AB0CW > > From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 15:12:23 1998 X-UIDL: eaf3dc90dc91375b9a865af6d83fc54f Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id PAA27175 for ; Mon, 11 May 1998 15:12:22 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA16591 for glowbugs-outgoing; Mon, 11 May 1998 11:37:08 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA16586; Mon, 11 May 1998 11:37:00 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 11 May 1998 11:36:59 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Garey Barrell cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> QSK for glowbugs In-Reply-To: <3.0.1.32.19980511140414.00695424@pop.mindspring.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > You might want to look at the June 1957 article titled "A Novel Electronic > TR Switch". In which magazine, book, etc.? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 17:13:26 1998 X-UIDL: 3c604a52574da26fdcd9b614e47d51f9 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id RAA11651 for ; Mon, 11 May 1998 17:13:25 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA18290 for glowbugs-outgoing; Mon, 11 May 1998 13:28:04 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay1.Hawaii.edu (root@relay1.hawaii.edu [128.171.3.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id NAA18267 for ; Mon, 11 May 1998 13:27:58 -0700 (PDT) Received: from uhunix5.its.Hawaii.Edu ([128.171.44.55]) by relay1.Hawaii.Edu with SMTP id <148528(4)>; Mon, 11 May 1998 10:27:31 -1000 Received: from localhost by uhunix5.its.Hawaii.Edu with SMTP id <188963(10)>; Mon, 11 May 1998 10:27:10 -1000 Date: Mon, 11 May 1998 10:27:02 -1000 From: Jeffrey Herman X-Sender: jeffreyh@uhunix5 To: Ken Gordon cc: Garey Barrell , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> QSK for glowbugs In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO You guys using QSK for your stand-alone xmtrs - do you leave the xmtr's rotary panel switch on "transmit" during your entire QSO? For manual operation with my DX-60 xmtr, I have to go from "standby" to "transmit" on the rotary switch. I've never felt comfortable leaving the switch in the "transmit" position while receiving, but for QSK operation, I guess that's what I'd have to do. Jeff KH2PZ From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 17:53:02 1998 X-UIDL: 3891d48f1f88366e2ce2234d3108221f Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id RAA18636 for ; Mon, 11 May 1998 17:53:02 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA19457 for glowbugs-outgoing; Mon, 11 May 1998 14:17:14 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA19448; Mon, 11 May 1998 14:16:55 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 11 May 1998 14:16:54 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Jeffrey Herman cc: Garey Barrell , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> QSK for glowbugs In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > You guys using QSK for your stand-alone xmtrs - do you leave the xmtr's > rotary panel switch on "transmit" during your entire QSO? Yup. > > For manual operation with my DX-60 xmtr, I have to go from "standby" to > "transmit" on the rotary switch. I've never felt comfortable leaving the > switch in the "transmit" position while receiving, but for QSK operation, > I guess that's what I'd have to do. > Yup. :-) Shouldn't bother it... Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 20:16:37 1998 X-UIDL: 84ab65b6ee6c78999af45e2dd80ead08 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id UAA17803 for ; Mon, 11 May 1998 20:16:37 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA22191 for glowbugs-outgoing; Mon, 11 May 1998 16:36:40 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id QAA22184 for ; Mon, 11 May 1998 16:36:37 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 11 May 1998 16:36:35 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> A big 45 ?... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I was just given a 4 pin, ceramic based tube, with the name Sylvania F7 on the base, but no other markings. It looks to me like a taller version of the 45 triode, complete with the "springs" on the top ceramic spacer inside which hold the filament wires. The base also has a locating pin sticking out of its side. Am I all wet, or is this a heavy-duty 45? It looks like it would make a good period looking Hartley. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 11 23:36:24 1998 X-UIDL: 5a26cb3a165263ed1a165f08a8ce4a97 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id XAA27314 for ; Mon, 11 May 1998 23:36:23 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA25834 for glowbugs-outgoing; Mon, 11 May 1998 20:08:25 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from uhura.concentric.net (uhura.concentric.net [206.173.119.93]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA25829 for ; Mon, 11 May 1998 20:08:21 -0700 (PDT) Received: from cliff.concentric.net (cliff [206.173.119.90]) by uhura.concentric.net (8.8.8/(98/04/23 5.10)) id XAA16455; Mon, 11 May 1998 23:07:42 -0400 (EDT) [1-800-745-2747 The Concentric Network] Received: from ts001d24.alq-nm.concentric.net (ts001d24.alq-nm.concentric.net [206.173.164.36]) by cliff.concentric.net (8.8.8) id XAA18833; Mon, 11 May 1998 23:06:37 -0400 (EDT) Message-Id: <1.5.4.32.19980512030416.006a76e8@pop3.concentric.net> X-Sender: jdport@pop3.concentric.net (Unverified) X-Mailer: Windows Eudora Light Version 1.5.4 (32) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Mon, 11 May 1998 21:04:16 -0600 To: glowbugs@piobaire.mines.uidaho.edu From: DEVCOM Subject: Re: GB> Thoughts of Yesteryear Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 11:10 PM 5/10/98 +0600, you wrote: >Jim, I enjoyed your dissertation, very much!!! I never got to Nam but >I was all over Thailand, traveling sometimes in a C-131 to the birthplace >of Ho Chi Minh (Nakhon Phenom). It was exciting and lots of fun. > >It had its weird moments, too, like trying to apply Air Force Failure Codes >to the complex digital equipment with which we were monitoring the Sensor >Intrusion Devices (SIDs) that we had sown along the Ho Chi Minh Trail. One >of the AF Failure Codes I remember was "Bird Strike Damage". > >I'll likely relate another happening (no tall tales.... these all happened >just as I relate it.) in a week or two. Are you going to be at Dayton? No, I have no plans for Dayton, though I hope to make the pilgrimage someday soon at least ONCE before I die. But I'm certainly looking forward to YOUR story, along with [hopefully] more details on (?) SIDS etc. Never heard of such things before! I'm continually amazed at the "techie-whizzy" ideas and gadgets and concepts brought into play in this ill-fated war. All we lacked was sensible national leadership. I recently read a very disturbing book about the history of US armaments and firepower and the effects our military blunderings in implementing weapons ideas and systems has had on our history, from the Revolution, including Custer's demise due to the Army's reluctance to equip soldiers with Spencer repeating rifles, and Custer's haste to make a name for himself and "get into action" so fast he ordered his Gatling guns left behind, through the Vietnam conflict and on to today where our soldiers are expected to save us with "single shot" rifles that automatically spit 2 or 3 bullets and then force the user to activate the trigger again in a long-standing US military attempt to "conserve ammunition" instead of "nail the enemy". I was absolutely SHOCKED to read his assertions that the Colt Armalite AR-15 was an AMAZINGLY accurate and DEADLY and RELIABLE weapon before the US Armory system got hold of it and "improved" it into the unliked M-16 and ordered millions of rounds of ammo with poor quality propellant that not only resulted in less-deadly slower muzzle velocities but caused fouling and jamming in a weapon that was issued withOUT a cleaning kit. According to this book (which now I gotta go look up again so I can post the title) the M-16, or more properly it's deadly efficient predecessor the Armalite AR-15, was much more accurate, deadly, and reliable than the Kalashnikov AK-47 which we Vietnam GI's learned to fear. Thanks to the Armory system and politics we got a gun that we feared to fire on full auto because of its problems, and had to face stuttering AK-47's that seemingly would fire full auto all day, after being drug through streams, mud, and rice paddies. I recommend the book and will shortly post its title, though if you're anything like me it will definitely make you angry to read it. To inject SOMETHING glowbuggy into the thread, I'm regaining a desire to see some tubes glowing in the dark again but I certainly was glad to get rid of them in the Army. I've already mentioned the weight and short battery life of the PRC-25 but things were worse (IMHO) in the choppers. Our aircraft FM transceivers had solid state receivers and (faint memory) only one or 2 tubes in the transmitter. Pilots were trained to power up the radios early in the warmup process and wait the prescribed 2 or 3 FULL minutes before transmitting so the tube(s) could be warmed up to prevent "stripping" of the cathodes and resulting loss of output power. Invariably the pilots were in a hurry and "knew it all" anyway and had nasty habits of just turning on the radios just before takeoff, immediately transmitting to ask for tower permission to take off, and not realizing they were killing the finals in their transmitters by doing so. They got their permission since they were so close to the tower they didn't need their lost transmit power to get through, and then wondered why they couldn't be heard when they got out over the "boonies" several miles away. No amount of explaining from us lowly radio techs could convince them that THEY were killing their own radios. About halfway through my tour, about the fall of 1969 I think, someone developed decent VHF power transistors and built them into bolt-in all solid state radios for the army. How wonderful to take the "tuber" out and slide in an all-transistor version that a pilot couldn't ruin! That was a transition in technology we certainly benefited from. Military Chopper radios covered a VERY wide frequency range of maybe 90 to 170 or so MHZ, I don't remember exactly, but the whip antennas were of course not broad enough to efficiently accept and radiate power over the entire range, so motorized antenna matching boxes were used out on the fuselage close to the antenna. Being so close to the tail rotors these were high failure items, with vibration beating the relays and connections to metal flakes and chips. Replaced lots of those.... Also interesting to me was the LOH-6 ("LOACH") observation chopper that used the vertical aluminum nose bracket between the plexiglass windshield bubbles as the VHF antenna, again through a matching network. The entire tiny craft was made mostly of fiberglass so the antenna worked, though I never tried field strength or pattern measurements with them. Now, these things truly involved testosterone... the strategy was for these small lightly armed observation birds to buzz along barely above ground level trying to draw fire from concealed enemy forces, thence to "call down" the firepower lurking a mile or so away from a Huey or Cobra gunship. I've watched these, buzzing around a hot concentration of bad guys, wondering how the devil any of them ever survived. Being Army flyboys they rarely "boogied" to leave the "fun" to their better-armed compatriots in the big gunships; they hung around, "dropped Willy Peter" (White Phosphorous) grenades, and had their own hapless door gunners hammering away with the venerable M-60's. I can't say if it was testosterone or stupidity, but those guys had it in spades. I found myself repeatedly happy that the North Vietnamese lacked helicopters and were very short on MIGs. Now, don't get all over me, Rod N5HV started it!!! He shoulda never mentioned that Browning .50 caliber on Ascension. I'd recommend migrating to an old.geezer.war.stories newsgroup but I'd probably never show up there, preferring to take the occasional scolding for getting too windy here on Glowbugs.... sorry. Jim W5AOX From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 09:52:02 1998 X-UIDL: e5ad9d37251bd3126d16ef7d0e53f0f8 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id JAA31167 for ; Tue, 12 May 1998 09:52:01 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA01256 for glowbugs-outgoing; Tue, 12 May 1998 06:12:13 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA01250 for ; Tue, 12 May 1998 06:12:06 -0700 (PDT) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id IAA24614; Tue, 12 May 1998 08:13:07 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id IAA09385; Tue, 12 May 1998 08:13:04 -0500 (EST) Date: Tue, 12 May 1998 08:13:02 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> 6L6 to Havana?! Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! Woke up early this morning and decided it must be a hint from the Radio Spirits--so I fired up the Jones 6L6 job and the ol' Drake and went hunting. No CQs anywhere I had a crystal close to, so I set up shop on 7045kc/s and called. And called. And called! Tch, the band was a-buzzin'. Must not be getting out. Tried one more call. ...And back comes a signal drifting down the dial: "KB9GKX (etc.) de CO3RP (etc.) _KN_!" I was so got I QRZ'ed him, and back he comes, same downward drift of a handful of cycles per minute during sending and calling me clear as next door. We managed a very short QSO--the sun was rising and about six minutes after his second call, pfft, gone. (And my shaky Morse didn't help any--it may only be 90 miles off Florida but my sigs don't make it off the continent very often!) His drift wasn't too bad, just enough to add some character and give me something to do while copying--typical HB tube VFO-type driftage. So there--one little ol' 6L6 can do okay, if the wind is from the right direction! (And how does a person go about QSLing a Cuban station? I'm guessing IRCs have a better chance of getting through than green stamps). 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * SOWP 5598-TA * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 15:00:30 1998 X-UIDL: 1a50a1bedbaf3ff1a5c560618b5ee930 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id PAA28034 for ; Tue, 12 May 1998 15:00:29 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA06863 for glowbugs-outgoing; Tue, 12 May 1998 11:17:34 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from atl.org ([199.184.215.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA06858 for ; Tue, 12 May 1998 11:17:31 -0700 (PDT) Received: from office (office.atl.org [199.184.215.100]) by atl.org (8.8.0/8.8.0) with SMTP id NAA22809 for ; Tue, 12 May 1998 13:50:46 -0400 (EDT) Message-ID: <35585788.4DE0@atl.org> Date: Tue, 12 May 1998 15:07:04 +0100 From: BOB DUCKWORTH Reply-To: bob@atl.org Organization: Atlanta Technology Library and Museum X-Mailer: Mozilla 3.01Gold (WinNT; I) MIME-Version: 1.0 To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> 6L6 to Havana?! References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO A couple of weird radios. http://www.atl.org/radios If anyone knows anything about the Manson or about the conversion of Hallicrafters HT37 TX into a transceiver I'd love to hear about it. -bob wb4mnf From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 10:44:48 1998 X-UIDL: 59f74e39666045d1ed67ee87777bf6e4 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id KAA02989 for ; Tue, 12 May 1998 10:44:47 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA02112 for glowbugs-outgoing; Tue, 12 May 1998 07:10:33 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from uhura.concentric.net (uhura.concentric.net [206.173.119.93]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA02107 for ; Tue, 12 May 1998 07:10:30 -0700 (PDT) Received: from cliff.concentric.net (cliff [206.173.119.90]) by uhura.concentric.net (8.8.8/(98/04/23 5.10)) id KAA08408; Tue, 12 May 1998 10:10:17 -0400 (EDT) [1-800-745-2747 The Concentric Network] Received: from ts002d24.alq-nm.concentric.net (ts002d24.alq-nm.concentric.net [206.173.164.60]) by cliff.concentric.net (8.8.8) id KAA21104; Tue, 12 May 1998 10:10:15 -0400 (EDT) Message-Id: <1.5.4.32.19980512140741.0066a2b0@pop3.concentric.net> X-Sender: jdport@pop3.concentric.net X-Mailer: Windows Eudora Light Version 1.5.4 (32) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 12 May 1998 08:07:41 -0600 To: glowbugs@piobaire.mines.uidaho.edu From: DEVCOM Subject: Re: GB> 6L6 to Havana?! Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Bobbi, I daresay "green stamps" will be more than welcome there but IRC's should work too. I've worked maybe a couple of Cuban stations in my ham 'career' but never tried to QSL them. I'm pleased to read your story. Back when I was active in CW I learned to listen for the weak, raspy, drifty signals, as invariably they were DX stations on low budgets. The rich guys who could afford stable hi-power rigs no doubt were up in the SSB bands working pileups of other wealthier folk. I'm glad, according to your story, that there must be still a few "little guys" left out there! And, thus inferring that hopefully someone is left to answer MY drifty weak signal from my reconstituted homegrew station... Jim W5AOX At 08:13 AM 5/12/98 -0500, you wrote: > >Hi! > > Woke up early this morning and decided it must be a hint from the Radio >Spirits--so I fired up the Jones 6L6 job and the ol' Drake and went >hunting. No CQs anywhere I had a crystal close to, so I set up shop on >7045kc/s and called. > And called. > And called! > Tch, the band was a-buzzin'. Must not be getting out. Tried one more >call. > ...And back comes a signal drifting down the dial: "KB9GKX (etc.) de >CO3RP (etc.) _KN_!" I was so got I QRZ'ed him, and back he comes, same >downward drift of a handful of cycles per minute during sending and >calling me clear as next door. From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 12:11:48 1998 X-UIDL: 936dd00278a9ed4f9a25660b9f21599f Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id MAA21382 for ; Tue, 12 May 1998 12:11:47 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA03606 for glowbugs-outgoing; Tue, 12 May 1998 08:33:54 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA03598 for ; Tue, 12 May 1998 08:33:50 -0700 (PDT) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id KAA29162; Tue, 12 May 1998 10:34:47 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id KAA15463; Tue, 12 May 1998 10:34:44 -0500 (EST) Date: Tue, 12 May 1998 10:34:42 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: DEVCOM cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> 6L6 to Havana?! In-Reply-To: <1.5.4.32.19980512140741.0066a2b0@pop3.concentric.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Jim (and the glowbuggies)! Oh, my--there's *lots* of "little guys" out there; 40 is rife with riff-raff such as us. One of my best QSOs was with Frank, K0IYE in Boulder, CO. He was running a Collins R-388 rcvr and a HB ex-mobile tube transmitter, which sounded good but tended to take a little walk in the first 30 seconds of each transmission. We had a nice chat, and his photograph QSL shows the setup: the (spotless, btw) R-388 sans cabinet on a card-size table, with the little transmitter next to it set at an angle to clear his Hi-Mound bug and some heavy leads running to a couple of big storage batteries on the floor! Now *there's* genuine glowbugging, IMO--each end of the QSO a little clip-lead-y, perhaps, but hey, it all worked, and not a new piece of gear in sight. Many of my QSOs are with folks running low power and/or homebrew gear, which may say something about the character of the signals the 6L6 job puts out (at least one of the crystals is a little chirpy and there's a tad bit of drift on long key-down). Or maybe it's just from working the 7035-7060 window. You bump into a lot of QRPer's at the low end of that and likes of us GB/BA types at the top. (Get much lower than 7035 and those lads'll sling lightning at you--not a problem for the ex-mil/ex-commerical ops among us but wow, I'm shaking teeny little 40 wpm dits outta the headphones for *days* afterwards!) Whatever, homebrew tube QRP does work; it's not a for-sure thing like pushin' a kW but it gets out of the back yard all the same. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 15:23:42 1998 X-UIDL: 17acc2a967ba16c13be3970950857a56 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id PAA01601 for ; Tue, 12 May 1998 15:23:42 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA07255 for glowbugs-outgoing; Tue, 12 May 1998 11:43:40 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA07249 for ; Tue, 12 May 1998 11:43:35 -0700 (PDT) Received: from indy3.indy.net (root@indy3.indy.net [199.3.65.14]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id NAA04107; Tue, 12 May 1998 13:44:22 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1] (may be forged)) by indy3.indy.net (8.8.7/8.8.7) with SMTP id NAA07131; Tue, 12 May 1998 13:44:16 -0500 (EST) Date: Tue, 12 May 1998 13:44:13 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy3 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> More 6L6 results Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Gang! Y'know, 40m still does have its virtues, and so does my habit of sending along a snapshot of the slop--er, shack--and a short note on repro RCA radiogram paper with QSLs. Back on 22 April, I worked a call that at first I took to be a hoax: W2LID. But the callbook came up with a valid name and address, so off went a card, photo, note and SASE (always a help--most folks never have a stamp handy when the card arrives so this saves 'em the trouble). In today's mail, his *cards* arrived; one for our contact and the other'n, well let's see: "WRXN M/V Sea Spray (W2LID)!" With a nice pic of said motor vessel (34' of nifty ship) and of the radio shack therein, complete with a 1942 RCA Liberty Ship receiver and matching transmitter (AR-8510 and ET-8043 respectively, for those who can put a faceplate with the numbers). And a note on a Mackay radiogram form! Beseems '2LID was a genuine Liberty Ship radioman. (And QSLs the marine stns he works from WRXN--who knew?) (Att'n Jeff Herman: it sez here "505-535 kHz A2!" Looks like you're not alone in enjoying the sonorous tonalities of that mode). He goes on to identify all the gear in the photo I sent, with his fond recollections of the stuff when it was new. Now howzabout *that?* (That call still gets me; but based on our QSO and his mail, it's kind of like nicknaming a tall guy "shorty!) ...Anyway, 'tis just more evidence that baiting your hook with a 6L6 does all right. (Want more proof? I worked a retired WW II WAVE radio op the other week. It must be that tube! ) 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 15:41:42 1998 X-UIDL: 340a452d994982083fb47537bd061a37 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id PAA16887 for ; Tue, 12 May 1998 15:41:42 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA07721 for glowbugs-outgoing; Tue, 12 May 1998 12:04:15 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f53.hotmail.com [207.82.251.40]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA07715 for ; Tue, 12 May 1998 12:04:11 -0700 (PDT) Received: (qmail 2548 invoked by uid 0); 12 May 1998 19:03:19 -0000 Message-ID: <19980512190319.2547.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Tue, 12 May 1998 12:03:19 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> 9003 Characteristics Content-Type: text/plain Date: Tue, 12 May 1998 12:03:19 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Anyone have the characteristics on the 9003 tube? The data base at http://hereford.ampr.org/cgi-bin/tube gives the following data for the interelectrode capacitances: Cin 3.4 Cout 3 Cgp 0.1 This is also the information listed in my 1968 ARRL handbook. However, that Cgp value sounds very high and I am wondering whether it is incorrect. I am told that the 9003 (7-pin mini) is a repackaged 956 (acorn tube), which has identical specs as the 9003 except that the Cgp is listed as 0.007 pF. Is the 0.1 value a typo? Can anyone confirm this? Thanks, Brad Hernlem ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 11:12:29 1998 X-UIDL: b394acb9659df6a850af6f1f02b7055c Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Beta6/8.9.0.Beta6) with ESMTP id LAA06685 for ; Tue, 12 May 1998 11:12:28 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA02440 for glowbugs-outgoing; Tue, 12 May 1998 07:34:24 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from echo.sound.net (echo.sound.net [205.242.192.21]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id HAA02435 for ; Tue, 12 May 1998 07:34:20 -0700 (PDT) From: wbfim@sound.net Received: (qmail 2833 invoked from network); 12 May 1998 14:15:30 -0000 Received: from tnt0-080006.kc.sound.net (HELO dd) (209.153.80.6) by echo.sound.net with SMTP; 12 May 1998 14:15:30 -0000 Message-Id: <3.0.3.32.19980512091553.00684fb4@sound.net> X-Sender: wbfim@sound.net X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.3 (32) Date: Tue, 12 May 1998 09:15:53 -1200 To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Mackay Receiver Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Yes, the Mackay 128-AZ uses a seperate 6J5 as the regenerator and a 6SJ7 as a detector. I am using this a Non Directional Beacon receiver and other low frequency work. It works nice. Dennis KE0QM From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 13 04:21:23 1998 X-UIDL: e45895b97cc30c06694a323e92faf47c Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id EAA25114 for ; Wed, 13 May 1998 04:21:22 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id AAA17217 for glowbugs-outgoing; Wed, 13 May 1998 00:52:07 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail1.teleport.com (mail1.teleport.com [192.108.254.26]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id AAA17212 for ; Wed, 13 May 1998 00:52:02 -0700 (PDT) Received: from [204.202.160.179] (pdx02-pm2-16.teleport.com [204.202.160.48]) by mail1.teleport.com (8.8.7/8.7.3) with SMTP id AAA18688 for ; Wed, 13 May 1998 00:51:12 -0700 (PDT) X-Sender: talljazz@mail.teleport.com Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Wed, 13 May 1998 00:58:14 +0100 To: glowbugs@piobaire.mines.uidaho.edu From: talljazz@teleport.com (Dan Presley) Subject: GB> Cuba Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On QSL'ing Cuban stations, check with Arnie,CO2KK, who is also the engineer at Radio Havana. His e-mail is: , and may be able to help you with info. Also, they use a lot of 'hollow-state' still down Havana-way. Dan N7CQR From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 20:57:24 1998 X-UIDL: 8ed135cbde7da23a965b55d8ed55bb93 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id UAA08315 for ; Tue, 12 May 1998 20:57:20 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA11953 for glowbugs-outgoing; Tue, 12 May 1998 17:18:45 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id RAA11945; Tue, 12 May 1998 17:18:34 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 12 May 1998 17:18:33 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Roberta J. Barmore" cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> 6L6 to Havana?! In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > So there--one little ol' 6L6 can do okay, if the wind is from the right > direction! (And how does a person go about QSLing a Cuban station? I'm > guessing IRCs have a better chance of getting through than green stamps). Well, if you can get to Cuba from Indy, your sure as heck ought to be able to get to AHdeeho. I will listen on 7045 anytime you say. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 21:12:21 1998 X-UIDL: 8dd0856d81c9f12248ec387e9a8448df Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id VAA31597 for ; Tue, 12 May 1998 21:12:18 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA12159 for glowbugs-outgoing; Tue, 12 May 1998 17:36:50 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from dfw-ix8.ix.netcom.com (dfw-ix8.ix.netcom.com [206.214.98.8]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA12154 for ; Tue, 12 May 1998 17:36:44 -0700 (PDT) From: mjsilva@ix.netcom.com Received: (from smap@localhost) by dfw-ix8.ix.netcom.com (8.8.4/8.8.4) id TAA17541; Tue, 12 May 1998 19:35:35 -0500 (CDT) Date: Tue, 12 May 1998 19:35:35 -0500 (CDT) Received: from val-ca3-25.ix.netcom.com(206.217.130.89) by dfw-ix8.ix.netcom.com via smap (V1.3) id rma017516; Tue May 12 19:35:22 1998 To: glowbugs@piobaire.mines.uidaho.edu To: alihernlem@hotmail.com Message-Id: <1998512173521341@ix.netcom.com> Subject: Re: GB> 9003 Characteristics X-Mailer: NETCOMplete v3.20, from NETCOM On-Line Communications, Inc. MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 05/12/98 12:03:19 you wrote: > >Anyone have the characteristics on the 9003 tube? The data base at >http://hereford.ampr.org/cgi-bin/tube gives the following data for the >interelectrode capacitances: > >Cin 3.4 >Cout 3 >Cgp 0.1 > >This is also the information listed in my 1968 ARRL handbook. However, >that Cgp value sounds very high and I am wondering whether it is >incorrect. I am told that the 9003 (7-pin mini) is a repackaged 956 >(acorn tube), which has identical specs as the 9003 except that the Cgp >is listed as 0.007 pF. Is the 0.1 value a typo? Can anyone confirm this? In the Radiation Laboratory volume "Components Handbook" the 9003 Cgp is listed as 0.010 pF, vs. 0.009 pF for the 956. You're correct that the 9003 is a repackaged 956. 73, Mike, KK6GM From glowbugs-owner@piobaire.mines.uidaho.edu Tue May 12 23:28:21 1998 X-UIDL: 22a2d3adfcbfebd1f7968794c86197d6 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id XAA15564 for ; Tue, 12 May 1998 23:28:20 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA13442 for glowbugs-outgoing; Tue, 12 May 1998 20:01:51 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sstar.com (sstar.com [204.27.72.1]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA13437 for ; Tue, 12 May 1998 20:01:46 -0700 (PDT) Received: by emachine.com (wcGATE v4) id 39827W Wed, 13 May 1998 03:59:37 GMT From: ralph.hartwell@emachine.com (Ralph Hartwell) Subject: GB> Radlab books Date: Wed, 13 May 1998 02:58:00 GMT Message-Id: <9805122159373489@emachine.com> Organization: The Energy Machine Information System 504-733-3462 To: glowbugs@piobaire.mines.uidaho.edu Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO M>In the Radiation Laboratory volume "Components Handbook" the 9003 Cgp is Well, I see that I'm not the only one with a set of the MIT Rad Lab books. Great reference source! Ralph W5JGV --- þ QMPro 1.53 þ IF STONE (ROTATION) > 1 THEN MOSS (PROPOGATION) = 0 From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 13 06:06:14 1998 X-UIDL: 5c8a08cf4d5aca458311498ea636ba11 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id GAA07697 for ; Wed, 13 May 1998 06:06:14 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id CAA18211 for glowbugs-outgoing; Wed, 13 May 1998 02:32:17 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtigwc04.worldnet.att.net (mtigwc04.worldnet.att.net [204.127.131.33]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id CAA18206 for ; Wed, 13 May 1998 02:32:13 -0700 (PDT) Received: from LOCALNAME ([12.65.208.132]) by mtigwc04.worldnet.att.net (post.office MTA v2.0 0613 ) with SMTP id AAA253; Wed, 13 May 1998 05:07:33 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: glowbugs@piobaire.mines.uidaho.edu, heath@listserv.tempe.gov, boatanchors@theporch.com From: Sandy W5TVW Subject: GB> IB-1100 Info Date: Wed, 13 May 1998 05:07:33 +0000 Message-ID: <19980513050731.AAA253@LOCALNAME> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Who asked me for some info on the IB-100 Frequency Counter? I have it copied now and the message requesting it disappeared! POOF! Whoever it was had one that needed fixing and wanted just the service info and schematics. 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Wed May 13 01:43:37 1998 X-UIDL: b27d1cbc1d8563635163a5db759515a6 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id BAA24616 for ; Wed, 13 May 1998 01:43:36 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA15295 for glowbugs-outgoing; Tue, 12 May 1998 22:09:21 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtigwc04.worldnet.att.net (mtigwc04.worldnet.att.net [204.127.131.33]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA15290 for ; Tue, 12 May 1998 22:09:16 -0700 (PDT) Received: from LOCALNAME ([12.65.208.132]) by mtigwc04.worldnet.att.net (post.office MTA v2.0 0613 ) with SMTP id AAC253; Wed, 13 May 1998 05:07:38 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, glowbugs@piobaire.mines.uidaho.edu From: Sandy W5TVW Subject: GB> RE: National NC-183D book Date: Wed, 13 May 1998 05:07:38 +0000 Message-ID: <19980513050731.AAC253@LOCALNAME> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Someone requested a copy of the NC-183D manual. I had a disk crash and lost who needed it. I have copy in hand. Sorry for the All points bulletin! 73 Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 03:15:40 1998 X-UIDL: bf5278715931ae4126d0ca9be51b406e Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id DAA05060 for ; Fri, 15 May 1998 03:15:39 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA21811 for glowbugs-outgoing; Thu, 14 May 1998 23:44:46 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from denmark.it.earthlink.net (denmark-c.it.earthlink.net [204.119.177.22]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA21805 for ; Thu, 14 May 1998 23:44:42 -0700 (PDT) Received: from default (pool001-max1.ds13-ca-us.dialup.earthlink.net [209.178.15.151]) by denmark.it.earthlink.net (8.8.7/8.8.5) with SMTP id XAA06987; Thu, 14 May 1998 23:44:06 -0700 (PDT) Message-Id: <3.0.5.32.19980514234320.00aaa2d0@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Thu, 14 May 1998 23:43:20 -0700 To: Ken Gordon From: Jim Hill Subject: Re: GB> Taylor tubes... Cc: glowbugs@piobaire.mines.uidaho.edu In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Ken: I went to Purdue University from 1948 to 1952. Robert Hajek (sp??), was a friend of mine, and the son of the president of Taylor Tubes. He was a ham, but I lost track of him after graduation. I remember him saying Taylor Tubes was in big trouble. He brought down a nice 10 meter AM rig, bristling with Taylor Tubes, and used it at one of the club stations, W9CLY. We didn't use it very long, because it was heard in most of the nearby student's radios. No doubt, the rig and radios would be collectable now. 73's Jim At 05:05 PM 5/14/98 -0700, you wrote: >Does anyone happen to know when this company stopped making tube? snip... > >Ken W7EKB > > > From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 11:51:25 1998 X-UIDL: 8c067f0cb2084c52d8e85261ba0d8da7 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id LAA26253 for ; Fri, 15 May 1998 11:51:25 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA27755 for glowbugs-outgoing; Fri, 15 May 1998 08:19:20 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f144.hotmail.com [207.82.251.23]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA27750 for ; Fri, 15 May 1998 08:19:17 -0700 (PDT) Received: (qmail 3175 invoked by uid 0); 15 May 1998 15:18:33 -0000 Message-ID: <19980515151833.3174.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 15 May 1998 08:18:31 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Low Voltage Characteristics Content-Type: text/plain Date: Fri, 15 May 1998 08:18:31 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO There have been past discussions on this list about using tubes with low plate supplies. I have been surveying my tubes according to their characteristics under these conditions and thought that I would share some of the results with you in case that you find them useful. The following data may not be representative but it is what I found for single random NOS tubes. Note that I used a string of 5 9V batteries as a variable plate and screen supply. The suppressor grid was tied to the cathode in all cases. The control grid potential was varied by using a 10K pot across a single 9V battery (wiper attached to G1, +ve end of battery attached to cathode). In the case of the 1N5GT tube I noticed that the Ip seemed to surge often and was quite variable under "constant" conditions. I recall reading in the GB archives that someone (I believe it was Bob/NA4G) also noted this type of behavior in filament tubes. However, in all the cases of miniature filament tubes that I have checked (data not shown in this e-mail), none have behaved this way. I only have 2 1N5GT tubes and the other one seems to have an intermittent filament (maybe bad internal pin connection). Are there specific filament tubes that are prone to this behavior? Any opinions about the 1N5GT in general? Also, note that even at 45 V on the 1N5GT the Ip was very weak although it was close to specs (1.2mA) when a 100V source was used. The heated cathode tubes which I have checked generally give appreciable Ip even with only 1 or 2 9V batteries on the plate (or screen). The 1N5GT was dead under those conditions. Brad --------------------------------------------------------------------- Tube: 9003 Remote Cutoff Pentode Base: 7BD Heater: 6.3V 0.15A Pin Connection ---------------- 1 G1 2 K, IS 3 H 4 H 5 P 6 G2 7 K, G3, IS With P and G2 at 5 9V batteries With G1=0V and P at 5 batt G1 Ip G2 Ip -------------- ---------------- -0.03V 3.920mA 5 batt 4.027mA -0.50 3.048 4 batt 3.027 -1.00 2.286 3 batt 2.032 -1.50 1.703 2 batt 1.149 -1.99 1.338 1 batt 0.402 -2.50 1.109 -3.02 0.962 -3.51 0.868 With G1=0V and G2 at 5 batt -4.00 0.790 -5.02 0.658 P Ip -6.00 0.560 ---------------- -7.00 0.479 5 batt 4.052 -8.02 0.409 4 batt 3.962 -8.72 0.368 3 batt 3.827 2 batt 3.523 1 batt 2.956 ------------------------------------------------------------------- Tube: 6AK6 Power Pentode Base: 7BK Heater: 6.3V 0.15A Pin Connection ---------------- 1 G1 2 G3 3 H 4 H 5 P 6 G2 7 K With P and G2 at 5 9V batteries With G1=-1.01V and P=46.9V (5 batt) G1 Ip G2 Ip IG2 -------------- -------------------------- -8.72V 0.026mA 5 batt 5.039mA 0.872mA -7.99 0.050 4 batt 3.567 0.597 -6.99 0.119 3 batt 2.208 0.341 -6.52 0.176 2 batt 1.094 0.127 -6.02 0.262 1 batt 0.275 0.029 -5.51 0.386 -5.00 0.561 -4.49 0.798 With G1=-1.01V and G2 at 5 batt -4.00 1.096 -3.48 1.504 P Ip IG2 -3.03 1.946 ------------------------------- -2.50 2.602 5 batt(46.9V) 5.003mA 0.874mA -2.00 3.330 4 batt(38.0V) 4.956 0.882 -1.50 4.146 3 batt(28.7V) 4.881 0.913 -0.99 5.074 2 batt(19.5V) 4.648 1.048 -0.51 6.032 1 batt(10.2V) 4.391 1.167 -1.01 5.032 --------------------------------------------------------------------- Tube: 1N5GT RF Pentode Base: 5Y Heater: 1.4V 0.05A Pin Connection ---------------- 1 NC 2 F+ 3 P 4 G2 5 NC 6 NC 7 F-, G3 8 NC cap G1 With P and G2 at 5 9V batteries With G1=0V and P at 5 batt G1(vs pin7) Ip G2 Ip ------------------ ---------------- -0.0V 0.271mA 5 batt 0.261mA -0.5 0.115 4 batt 0.138 -1.0 0.033 3 batt 0.054 -1.5 0.004 2 batt 0.012 -0.75 0.062 1 batt 0.000 -0.25 0.188 With G1=0V and G2 at 5 batt P Ip ---------------- 5 batt 0.264mA 4 batt 0.258 3 batt 0.254 2 batt 0.235 1 batt 0.183 with 100V on G2 and P and 0V on G1, Ip was 1.44mA ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 12:49:44 1998 X-UIDL: 99581bf1a207c7280d28e8e38cb8cfd0 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id MAA27905 for ; Fri, 15 May 1998 12:49:43 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA29122 for glowbugs-outgoing; Fri, 15 May 1998 09:22:34 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from seedlab1.cropsci.ncsu.edu (seedlab1.cropsci.ncsu.edu [152.1.88.4]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA29117 for ; Fri, 15 May 1998 09:22:29 -0700 (PDT) Received: (from rdkeys@localhost) by seedlab1.cropsci.ncsu.edu (8.8.7/8.8.7) id MAA13413; Fri, 15 May 1998 12:18:35 -0400 (EDT) From: "Robert D. Keys" Message-Id: <199805151618.MAA13413@seedlab1.cropsci.ncsu.edu> Subject: Re: GB> Low Voltage Characteristics In-Reply-To: <19980515151833.3174.qmail@hotmail.com> from Brad Hernlem at "May 15, 98 08:18:31 am" To: alihernlem@hotmail.com (Brad Hernlem) Date: Fri, 15 May 1998 12:18:35 -0400 (EDT) Cc: glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO NICE Work! > In the case of the 1N5GT tube I noticed that the Ip seemed to surge > often and was quite variable under "constant" conditions. I recall > reading in the GB archives that someone (I believe it was Bob/NA4G) also > noted this type of behavior in filament tubes. However, in all the cases > of miniature filament tubes that I have checked (data not shown in this > e-mail), none have behaved this way. I only have 2 1N5GT tubes and the > other one seems to have an intermittent filament (maybe bad internal pin > connection). Are there specific filament tubes that are prone to this > behavior? Any opinions about the 1N5GT in general? Newer filment design tends to be better than the older tube designs. Also, indirectly heated cathodes usually have a large reserve of emission, more than is necessary for detector service. When the filament spurts a lot, it probably could use reconditioning. You might try running it at standard voltage + 5-10 percent for an hour or so and compare it before and after. Don't go over 10%, or you can blow the filament. Take it a few minutes at a time, and then check it in your test setup. If that perks it up after some time, a few minutes to an hour, then it just needed some rejuvenation. If it did not make any difference, it is probably weak or at the end of its life. On the intermittent tube, set it up on the test jig and give it full normal voltage. Then tap on it with a pencil to see if you can shake loose the place where it may be touching something else. I once recovered a 10Y that way, although it only works vertically, now, and will short out if you look at it crosseyed. If the filament on the 1N5 is bad, the intermittent will probably break. If it is shorting, then it will probably shake loose. You can check to see if it is shorting, by heating the filament and looking for any off colored spots. Where it gets off colored or less bright, it may be touching something internally. On something like the 1N5 and other low voltage filament tubes, even a very slight change in filament voltage can make a rather significant difference in emission. In something like low voltage regen detector service, you play a game with getting enough emission stably to give good regeneration response. Normally, in detector service, very little plate current is actually drawn, due to the rather high grid bias. That is why something like an 833 even can be used as a detector. One of our early brethren did that and it worked fairly well. That is why the filament current can be backed off well below spec, and still work fine. In detector service, only sufficient current to pass the weak electron stream is required. In audio or other service, the requirements are more stringent. > Also, note that even at 45 V on the 1N5GT the Ip was very weak although > it was close to specs (1.2mA) when a 100V source was used. The heated > cathode tubes which I have checked generally give appreciable Ip even > with only 1 or 2 9V batteries on the plate (or screen). The 1N5GT was > dead under those conditions. You might try boosting the filament voltage a few percent and see if that does anything. If it does, the tube is probably approaching the end of its useful life, although it may be good as a detector still. I would expect that a minimum of 18 or so volts would be required to get any reasonable detector service out of the 1N5. A 6L6, on the other hand can walk along at 12V plate and break your ear drums in a detector and one step. A pair of 6V6's also makes a good detector and one step at low voltage (12-24v plate). > Brad Bob/NA4G From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 13:35:21 1998 X-UIDL: f767c47dc01d5387cf8f11bf33a975be Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id NAA02709 for ; Fri, 15 May 1998 13:35:20 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA00571 for glowbugs-outgoing; Fri, 15 May 1998 10:04:45 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f117.hotmail.com [207.82.251.45]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA00566 for ; Fri, 15 May 1998 10:04:40 -0700 (PDT) Received: (qmail 3251 invoked by uid 0); 15 May 1998 17:03:52 -0000 Message-ID: <19980515170352.3250.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 15 May 1998 10:03:52 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Low B+ Characteristics(cont.): 1L4 Content-Type: text/plain Date: Fri, 15 May 1998 10:03:52 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Here are some more low voltage characteristics. These are for several 1L4 tubes from different manufacturers. Again, a string of 5 9V batteries were used as a variable plate and screen supply. Control grid voltage was obtained from a 10K pot across another 9V battery. Filament supply was a 1.5V "D" cell. Brad ------------------------------------------------------------ Tube: 1L4 Sharp Cutoff Pentode Base: 6AR Filament: 1.4V, 0.05A Pin Connection ---------------- 1 F-, G3 2 P 3 G2 4 NC 5 F-, G3 6 G1 7 F+ With P and G2 at 5 9V batt and G3 at 0V Tube 1 2 3 4 5 6 CMC RCA CMC CMC Tungsol Tungsol ----------------------------------------------------- G1 Ip ------------------------------------------------------------- -0.0V 1.830mA 1.756 1.621 1.595 1.371 1.691 -0.5V 1.493 1.445 1.293 1.291 1.069 1.352 -1.0V 1.150 1.118 0.983 0.984 0.762 1.027 -1.5V 0.833 0.820 0.709 0.698 0.513 0.722 -2.0V 0.555 0.554 0.455 0.460 0.306 0.477 -2.5V 0.321 0.337 0.253 0.264 0.156 0.280 -3.0V 0.129 0.166 0.112 0.126 0.060 0.132 -3.5V 0.043 0.064 0.042 0.046 0.016 0.049 -4.0V 0.013 0.020 0.014 0.013 0.003 0.010 With P at 5 batt and G1 at 0V Tube 1 2 5 6 ----------------------------- G2 Ip ------------------------------------- 5 batt 1.81mA 1.54 1.60 1.79 4 batt 1.29 1.03 1.08 1.26 3 batt 0.81 0.59 0.64 0.80 2 batt 0.40 0.24 0.26 0.39 1 batt 0.12 0.04 0.04 0.11 With G2 at 5 batt amd G1 at 0V Tube 1 2 5 6 ----------------------------- P Ip ------------------------------------- 5 batt 1.81mA 1.53 1.60 1.79 4 batt 1.79 1.52 1.59 1.76 3 batt 1.76 1.49 1.56 1.72 2 batt 1.67 1.42 1.49 1.61 1 batt 1.44 1.22 1.30 1.38 ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 13:36:51 1998 X-UIDL: 4754c6c44f3b41455da467baf1a9a169 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id NAA04048 for ; Fri, 15 May 1998 13:36:50 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA00680 for glowbugs-outgoing; Fri, 15 May 1998 10:11:12 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA00675 for ; Fri, 15 May 1998 10:11:07 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 15 May 1998 10:11:06 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Oven elements... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Does anyone know if the characteristics of nichrome wire, as found in replacement oven elements, would be suitable for use as high-wattage grid leaks? It seems to me that they are rather low resistance though. What I need is about 200 Watts worth of about 50 k Ohms, but I have to be able to adjust the resistance to balance the tubes (Push Pull). Ideas? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 13:44:50 1998 X-UIDL: 17cf6b0868641285e4deb7aa865417c3 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id NAA15135 for ; Fri, 15 May 1998 13:44:49 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA00890 for glowbugs-outgoing; Fri, 15 May 1998 10:18:33 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f108.hotmail.com [207.82.250.227]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA00884 for ; Fri, 15 May 1998 10:18:29 -0700 (PDT) Received: (qmail 26932 invoked by uid 0); 15 May 1998 17:17:39 -0000 Message-ID: <19980515171739.26931.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 15 May 1998 10:17:39 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Low B+ Characteristics(cont.): 3A4 Content-Type: text/plain Date: Fri, 15 May 1998 10:17:39 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Here are characteristics which I measured for an RCA 3A4 tube. The setup was as before. Filament supply was via a single "D" cell. Brad ---------------------------------------------------------------- Tube: 3A4 Power Pentode Base: 7BB Filament: 1.4V, 0.2A or 2.8V, 0.1A Pin Connection ---------------- 1 F 2 P 3 G2 4 G1 5 F(center tap), G3 6 P 7 F With P and G2 at 5 9V batt G1 Ip ------------ -0.0V 11.89mA -0.5 10.97 -1.0 10.01 -1.5 9.14 -2.0 8.17 -2.5 7.25 -3.0 6.47 -3.5 5.55 -4.0 4.80 -4.5 4.12 -5.0 3.40 -8.0 0.83 With P at 5 batt and G1 at 0V G2 Ip --------------- 5 batt 11.91mA 4 batt 8.62 3 batt 5.53 2 batt 2.84 1 batt 0.73 With G2 at 5 batt amd G1 at 0V P Ip --------------- 5 batt 11.77mA 4 batt 11.48 3 batt 11.03 2 batt 9.32 1 batt 2.88 ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 14:07:08 1998 X-UIDL: af29a722635795a7b2624b7d8ddf587d Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id OAA26061 for ; Fri, 15 May 1998 14:07:07 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA01218 for glowbugs-outgoing; Fri, 15 May 1998 10:30:59 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f141.hotmail.com [207.82.251.20]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA01213 for ; Fri, 15 May 1998 10:30:54 -0700 (PDT) Received: (qmail 4064 invoked by uid 0); 15 May 1998 17:30:04 -0000 Message-ID: <19980515173004.4063.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 15 May 1998 10:30:04 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Low B+ Characteristics(cont.): JAN5719 Content-Type: text/plain Date: Fri, 15 May 1998 10:30:04 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Here are characteristics for the JAN5719 subminiature triode tube. This tube is compliments of Gerald Caouette (ve6nap@oanet.com) who, I believe has more of them. Brad ------------------------------------------------------------ Tube: JAN5719 Triode (subminiature) Filament: 6.3V, 0.15A Pin Connection --------------- 1 Grid 2,4,7 NC 3,6 H 5 K 8 P With P at 46.2V (5 9V batt) Grid Ip --------------- -0.000V 1.802mA -0.104 1.543 -0.249 1.169 -0.405 0.800 -0.803 0.213 -1.018 0.081 -1.439 0.008 With Grid at 0V P Ip --------------- 46.2V 1.809mA 37.0 1.475 27.6 1.144 18.2 0.823 8.8 0.505 ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 14:06:42 1998 X-UIDL: dca9fd961a2eb99eec6b0c20fa6c29f7 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id OAA26564 for ; Fri, 15 May 1998 14:06:41 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA01432 for glowbugs-outgoing; Fri, 15 May 1998 10:40:45 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA01427; Fri, 15 May 1998 10:40:24 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 15 May 1998 10:40:21 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Brad Hernlem cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Low B+ Characteristics(cont.): 3A4 In-Reply-To: <19980515171739.26931.qmail@hotmail.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO This is neat info! Thanks Brad. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 14:34:42 1998 X-UIDL: 157ac6c8542d6e8c714cc0106dc96b63 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id OAA16674 for ; Fri, 15 May 1998 14:34:41 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA02063 for glowbugs-outgoing; Fri, 15 May 1998 11:13:58 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f43.hotmail.com [207.82.250.54]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA02057 for ; Fri, 15 May 1998 11:13:53 -0700 (PDT) Received: (qmail 16745 invoked by uid 0); 15 May 1998 18:13:02 -0000 Message-ID: <19980515181302.16744.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 15 May 1998 11:13:01 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Low B+ Characteristics(cont.): 5654 and 6186W Content-Type: text/plain Date: Fri, 15 May 1998 11:13:01 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO This is the last of my data for low voltage characteristics measured to date. The following data is for a couple used 5654 tubes and three NOS JAN 6186W tubes. The data was collected as described previously. Brad --------------------------------------------------------------------- Tube: 5654 (6AK5) Sharp Cutoff Pentode Filament: 6.3V, 0.175A Pin Connection --------------- 1 G1 2 K, IS 3 H 4 H 5 P 6 G2 7 K, G3, IS With P and G2 at 5 9V batt G1 Ip (tube 1) Ip (tube 2) ------------------------------ -0.0V 4.90mA 5.70 -0.5 2.93 3.80 -1.0 1.34 2.03 -1.5 0.44 0.82 -2.0 0.09 0.25 With P at 5 batt and G1 at 0V G2 Ip (tube 1) Ip (tube 2) ------------------------------ 5 batt 5.14mA 5.83 4 batt 3.87 4.66 3 batt 2.66 3.50 2 batt 1.56 2.39 1 batt 0.63 1.37 ----------------------------------------------------------------- Tube: JAN6186W Sharp Cutoff Pentode Filament: 6.3V, 0.3A Pin Connection ---------------- 1 G1 2 K, IS 3 H 4 H 5 P 6 G2 7 K, G3, IS With P and G2 at 5 9V batt G1 Ip (tube 1) Ip (tube 2) Ip (tube 3) -------------------------------------------- -0.0V 3.23mA 4.65 3.12 -0.5 1.90 2.72 1.62 -1.0 0.71 1.22 0.52 -1.5 0.20 0.43 0.09 -2.0 0.03 0.12 0.01 With P at 5 batt and G1 at 0V G2 Ip (tube 1) Ip (tube 2) ------------------------------ 5 batt 3.30mA 4.64 4 batt 2.51 3.56 3 batt 1.75 2.49 2 batt 1.08 1.53 1 batt 0.50 0.69 ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 15:14:38 1998 X-UIDL: 65ea6ed99ccffd4d62fd75feda1e6f0b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id PAA09475 for ; Fri, 15 May 1998 15:14:37 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA02767 for glowbugs-outgoing; Fri, 15 May 1998 11:46:22 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from seedlab1.cropsci.ncsu.edu (seedlab1.cropsci.ncsu.edu [152.1.88.4]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA02762 for ; Fri, 15 May 1998 11:46:17 -0700 (PDT) Received: (from rdkeys@localhost) by seedlab1.cropsci.ncsu.edu (8.8.7/8.8.7) id OAA13662; Fri, 15 May 1998 14:42:14 -0400 (EDT) From: "Robert D. Keys" Message-Id: <199805151842.OAA13662@seedlab1.cropsci.ncsu.edu> Subject: Re: GB> Low B+ Characteristics(cont.): Do a 6146, 6L6, 6V6 comparison In-Reply-To: <19980515181302.16744.qmail@hotmail.com> from Brad Hernlem at "May 15, 98 11:13:01 am" To: alihernlem@hotmail.com (Brad Hernlem) Date: Fri, 15 May 1998 14:42:13 -0400 (EDT) Cc: glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > This is the last of my data for low voltage characteristics measured to > date. The following data is for a couple used 5654 tubes and three NOS > JAN 6186W tubes. The data was collected as described previously. > > Brad Great stuff, Brad... please do a 6146, 6L6, 6V6, and maybe an 807 for some fun comparisons. Bob/NA4G From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 15:49:37 1998 X-UIDL: 444b3fc81502a3d9bb255cd30484bc8b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id PAA10850 for ; Fri, 15 May 1998 15:49:36 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA03721 for glowbugs-outgoing; Fri, 15 May 1998 12:24:26 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA03716 for ; Fri, 15 May 1998 12:24:22 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 15 May 1998 12:24:21 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Tube 8068... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Anyone know what this thing is ? It is an octal-based tube and looks like a pretty heavy duty sweep tube. I was just given about 25 of them NIB. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 15:51:47 1998 X-UIDL: b1158ab7971791155c6386f2f15c0733 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id PAA02850 for ; Fri, 15 May 1998 15:51:46 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA03766 for glowbugs-outgoing; Fri, 15 May 1998 12:25:21 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f23.hotmail.com [207.82.250.34]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA03760 for ; Fri, 15 May 1998 12:25:17 -0700 (PDT) Received: (qmail 11669 invoked by uid 0); 15 May 1998 19:24:24 -0000 Message-ID: <19980515192424.11668.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 15 May 1998 12:24:23 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- Low Voltage Characteristics Content-Type: text/plain Date: Fri, 15 May 1998 12:24:23 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >Newer filment design tends to be better than the older tube designs. > >Also, indirectly heated cathodes usually have a large reserve of emission, >more than is necessary for detector service. > >When the filament spurts a lot, it probably could use reconditioning. >You might try running it at standard voltage + 5-10 percent for an hour >or so and compare it before and after. Don't go over 10%, or you can >blow the filament. Take it a few minutes at a time, and then check >it in your test setup. If that perks it up after some time, a few minutes >to an hour, then it just needed some rejuvenation. If it did not make >any difference, it is probably weak or at the end of its life. I was under the impression that this procedure only works for thoriated tungsten filaments and I am assuming that the 1N5GT has an oxide coated filament. Is this not correct? >On the intermittent tube, set it up on the test jig and give it >full normal voltage. Then tap on it with a pencil to see if you can >shake loose the place where it may be touching something else. >I once recovered a 10Y that way, although it only works vertically, >now, and will short out if you look at it crosseyed. If the filament >on the 1N5 is bad, the intermittent will probably break. If it is >shorting, then it will probably shake loose. You can check to see >if it is shorting, by heating the filament and looking for any off >colored spots. Where it gets off colored or less bright, it may >be touching something internally. It is very difficult to see the filament in these tubes. It is dim, of course, but there is only a small hole in the shield through which to see. From what I can tell, the intermittent seems to be related to the pins more than tapping or shaking. It isn't that the pins to socket contacts are bad (I checked that). Whatever the cause, the tube isn't worth bothering with (it only cost me 20 cents). >On something like the 1N5 and other low voltage filament tubes, even a >very slight change in filament voltage can make a rather significant >difference in emission. In something like low voltage regen detector >service, you play a game with getting enough emission stably to give >good regeneration response. Normally, in detector service, very >little plate current is actually drawn, due to the rather high grid >bias. That is why something like an 833 even can be used as a detector. >One of our early brethren did that and it worked fairly well. That is >why the filament current can be backed off well below spec, and still work >fine. In detector service, only sufficient current to pass the weak electron >stream is required. In audio or other service, the requirements are >more stringent. > >> Also, note that even at 45 V on the 1N5GT the Ip was very weak although >> it was close to specs (1.2mA) when a 100V source was used. The heated >> cathode tubes which I have checked generally give appreciable Ip even >> with only 1 or 2 9V batteries on the plate (or screen). The 1N5GT was >> dead under those conditions. > >You might try boosting the filament voltage a few percent and see if >that does anything. If it does, the tube is probably approaching the >end of its useful life, although it may be good as a detector still. > >I would expect that a minimum of 18 or so volts would be required >to get any reasonable detector service out of the 1N5. A 6L6, on >the other hand can walk along at 12V plate and break your ear drums >in a detector and one step. A pair of 6V6's also makes a good >detector and one step at low voltage (12-24v plate). This 1N5GT is allegedly a NOS tube although it is in pretty ugly shape (metal band cracked and deteriorating). I realize that the filament tubes have much less emission than the indirectly heated tubes (1.4V*0.05A is much less than 6.3V*0.15A, for example, so you would expect this to be true). My question (or suspicion) is whether this decreased emission causes the threshold of plate supply for serviceable use to increase (not just that for characteristic operation the working Ip is frequently lower than with indirectly heated tubes). I can imagine that the decreased electron density around the cathode makes it necessary to use more pull from the screen and plate to get those guys past the control grid. There must be some electron density term in the equation somewhere. Brad >> Brad > >Bob/NA4G > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 15:51:57 1998 X-UIDL: 4bd13cec5467e796f97c5521772e5452 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id PAA19413 for ; Fri, 15 May 1998 15:51:57 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA03983 for glowbugs-outgoing; Fri, 15 May 1998 12:32:19 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f178.hotmail.com [207.82.251.64]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA03977 for ; Fri, 15 May 1998 12:32:15 -0700 (PDT) Received: (qmail 19637 invoked by uid 0); 15 May 1998 19:31:20 -0000 Message-ID: <19980515193120.19636.qmail@hotmail.com> Received: from 147.49.3.25 by www.hotmail.com with HTTP; Fri, 15 May 1998 12:31:20 PDT X-Originating-IP: [147.49.3.25] From: "Brad Hernlem" To: rdkeys@seedlab1.cropsci.ncsu.edu Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- Low B+ Characteristics(cont.): Do a 6146, 6L6, 6V6 comparison Content-Type: text/plain Date: Fri, 15 May 1998 12:31:20 PDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >> This is the last of my data for low voltage characteristics measured to >> date. The following data is for a couple used 5654 tubes and three NOS >> JAN 6186W tubes. The data was collected as described previously. >> >> Brad > >Great stuff, Brad... please do a 6146, 6L6, 6V6, and maybe an 807 >for some fun comparisons. > >Bob/NA4G > I don't have any of those tubes. My tube stock is pretty limited and I am probably one of the few non-Hams on this list (so no need for transmitting tubes). Mostly I have miniature tubes and a few loctals and octals. Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 17:58:27 1998 X-UIDL: 023b4c43e1fc8cd8b68312b9eff5a0b1 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id RAA01506 for ; Fri, 15 May 1998 17:58:26 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA06072 for glowbugs-outgoing; Fri, 15 May 1998 14:31:38 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA06067; Fri, 15 May 1998 14:31:32 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 15 May 1998 14:31:30 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Brad Hernlem cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: GB- Low B+ Characteristics(cont.): Do a 6146, 6L6, 6V6 comparison In-Reply-To: <19980515193120.19636.qmail@hotmail.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > I don't have any of those tubes. My tube stock is pretty limited and I > am probably one of the few non-Hams on this list (so no need for > transmitting tubes). Mostly I have miniature tubes and a few loctals and > octals. I was just given a BUNCH of 807s and 2 6146s. I will happily donate one of each to "the Cause". What is your address? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 17:56:39 1998 X-UIDL: e117157383f2c54d0820f9690d4a42e8 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id RAA08543 for ; Fri, 15 May 1998 17:56:37 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA06146 for glowbugs-outgoing; Fri, 15 May 1998 14:33:53 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA06130; Fri, 15 May 1998 14:33:40 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 15 May 1998 14:33:40 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Robert D. Keys" cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Tube 8068... In-Reply-To: <199805152001.QAA13850@seedlab1.cropsci.ncsu.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > > Anyone know what this thing is ? It is an octal-based tube and looks like > > a pretty heavy duty sweep tube. I was just given about 25 of them NIB. > > > > Ken W7EKB > > I sense a tubie project in the works.....(:+}}..... > Yup. Probably something Push-Pull-Parallel (Gee, I love Push-Pull). But I gotta finish my Mondo Hartley first. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 17:58:15 1998 X-UIDL: 68a21acc4243421fa445c3e55c1db64b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id RAA27123 for ; Fri, 15 May 1998 17:58:14 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA06174 for glowbugs-outgoing; Fri, 15 May 1998 14:34:37 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA06166; Fri, 15 May 1998 14:34:27 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 15 May 1998 14:34:26 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Robert D. Keys" cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: 8068 tube In-Reply-To: <199805152002.QAA13875@seedlab1.cropsci.ncsu.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > > This site mentions the 8068 tube (series-pass control): > > > > http://www.kepcopower.com/newsvac.htm > > Ohhh, a low voltage Hartley oscillator tube! > > Bob/NA4G Oooooooo...lovely! Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 18:01:41 1998 X-UIDL: 9cf792261822d2848a2d6fd591da30b7 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id SAA31700 for ; Fri, 15 May 1998 18:01:40 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA06315 for glowbugs-outgoing; Fri, 15 May 1998 14:38:49 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA06310 for ; Fri, 15 May 1998 14:38:45 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 15 May 1998 14:38:44 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Tube 8068... In-Reply-To: <19980515203207.AAA12092@LOCALNAME> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Sandy W5TVW wrote: > It's some kind of high voltage regulator tube. Plate dis is 35 watts. > Max voltage 3500 v on plate. Another book I have says 600 volts > at 35 ma class "A" amplifier service. Well, I have exactly 24 of them, NIB. They have ALL been tested by someone who very thoughtfully wrote their transconductance on each box. The lowest one says 10,250 micromhos and they go up from there. It seems to me that anything with that high a gM would make a pretty good oscillator, or a whale of a good low-noise amp. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri May 15 23:17:52 1998 X-UIDL: da8caf5c05f70eb37fbb9d123fab4a0b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id XAA12336 for ; Fri, 15 May 1998 23:17:51 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA08886 for glowbugs-outgoing; Fri, 15 May 1998 19:46:43 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA08881 for ; Fri, 15 May 1998 19:46:40 -0700 (PDT) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id VAA14577; Fri, 15 May 1998 21:47:07 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id VAA03622; Fri, 15 May 1998 21:47:05 -0500 (EST) Date: Fri, 15 May 1998 21:47:03 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> Dayton on a Friday! Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Well, gang, it turns out Dayton's pretty good on Friday! I met up with a few folks from the BA & GB lists, and I think at least walked near others (sort of left my print out of who's where in the car after the first trip, oops, and it was too looong a walk to go back for). Those who have met me will aver A) I don't look like I write and B) I don't sound like I look. (Everyone else will be confused, but 'strewth). Met Rev. George Dobbs (of G-QRP and etc.) and a few other famous QRPers, also Nancy Kott of the FISTS Club and Mitch of Vibroplex...*and* my Corporate-level boss, who wanted to know why I wasn't at work! (Traded an off day)--yes, for the very first time, I went inside at Dayton! Saw some nice stuff, including a middle-sized Johnson transmitter I should'a bought (that long walk to the car kept me from it). Picked up a lot of "Radio" magazines I didn't have, some QSTs and some new books, plus a coupla little "cheese slicers" (variable condensers [oh, okay, capacitors. But it sticks in my craw!]), some good ol' domed "Ohmite" knobs and a nifty Eastern-European straight key, fully enclosed and smooth as can be. Find Of The Day (not mine), Professor Tom Perera swapped for a metal-based, nearly new-looking Martin "Autoplex," oldest ancestor of the Vibroplex. (Yes, this is the very same W1TP who found a Vertical Vibroplex at *last* year's event--it's critical mass, that's what it is; when you have as many keys as he does, it just draws out the rare ones). (Gosh he has some interesting keys!) Saw a lot of things, did not think most prices were too out of line. One fellow was lugging around a rack-mount National late-40s set (with matching rack-mount speaker!) *and* an SP-600-VLF. He'll have great fun if his operating desk holds up, I think! As ever, I had to convince a couple of guys that I really did know something about radio--remembered to bring a few business cards this year, which sorta messed with their minds. (Chief Operator/Sr. RF Technician, heh heh heh...*and* I can cook. *And* I'm already married, you pooooor sap..... Am I too mean?) All in all, a fine time, well worth the sunburn and calf cramps. Now I'm for a long soak--I *still* have to work tonight! 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 16 10:55:56 1998 X-UIDL: 8249f4e12b76bf2c6bc9065a9bca0a5b Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id KAA28584 for ; Sat, 16 May 1998 10:55:55 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA16814 for glowbugs-outgoing; Sat, 16 May 1998 07:26:26 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from x7.boston.juno.com (x7.boston.juno.com [205.231.100.24]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA16809 for ; Sat, 16 May 1998 07:26:24 -0700 (PDT) Received: (from k7sz@juno.com) by x7.boston.juno.com (queuemail) id KiN17052; Sat, 16 May 1998 10:23:45 EDT To: rbarmore@indy.net Cc: boatanchors@sco.ThePorch.com, glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Dayton on a Friday! Message-ID: <19980517.143137.6807.3.k7sz@juno.com> References: X-Mailer: Juno 1.38 X-Juno-Line-Breaks: 0,2-12 From: k7sz@juno.com (Rick Arland) Date: Sat, 16 May 1998 10:23:45 EDT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Fri, 15 May 1998 21:47:03 -0500 (EST) "Roberta J. Barmore" writes: > > Met Rev. George Dobbs (of G-QRP and etc.) and a few other famous >QRPers, I didn't know you were a QRPer, Bobbi. One of these days I'll relate the story of my 37th birthday hosted by the Rt. Rev. Geo Dobbs (G3RJV) and the G-QRP- Club....It all boiled down to lots of Haggis and Single Malt Highland Whiskey (my liver is just now starting to recover). 73 rich K7SSZ _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 16 16:20:39 1998 X-UIDL: 0c5f65ec687ae0fe74e733ea79e46608 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id QAA15829 for ; Sat, 16 May 1998 16:20:38 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA20258 for glowbugs-outgoing; Sat, 16 May 1998 12:54:54 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.hits.net (mail.hits.net [206.127.244.4]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA20253 for ; Sat, 16 May 1998 12:54:51 -0700 (PDT) Received: from 206.127.244.76 (excalibur10.hits.net [206.127.244.76]) by mail.hits.net (8.8.8/8.8.5) with SMTP id JAA05568; Sat, 16 May 1998 09:49:46 -1000 (HST) Message-ID: <355DEF64.2D62@hits.net> Date: Sat, 16 May 1998 09:56:20 -1000 From: Peter Demmer Reply-To: ampruss@hits.net Organization: AMPRUSS Co. X-Mailer: Mozilla 3.01 (Macintosh; I; 68K) MIME-Version: 1.0 To: "Robert D. Keys" CC: Brad Hernlem , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: 8068 tube References: <199805152002.QAA13875@seedlab1.cropsci.ncsu.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Robert D. Keys wrote: > > > This site mentions the 8068 tube (series-pass control): > > > > http://www.kepcopower.com/newsvac.htm > > Ohhh, a low voltage Hartley oscillator tube! > > Bob/NA4 Peter wrote; GE tube manuel,11th edition; Beam Pentode base conx, 8LC Fil 6.3 @0.9A Maxiplate (design)=3500 (yes,yes,yes). Service; series regulator plate-e 600 @35 mil screen-e 125 neg CG-e 7.5 screen current = 1mA Rp ohms 54,5000 Gm umohs 5200 u factor and power out watts notlisted "only caution " maxium cathode current = 100mA And thats all I have. Aloha, Peter KH6CTQ From glowbugs-owner@piobaire.mines.uidaho.edu Sat May 16 21:24:04 1998 X-UIDL: b7b3422720fd89d8252a3b7da63aa3e7 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id VAA20983 for ; Sat, 16 May 1998 21:24:03 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA22880 for glowbugs-outgoing; Sat, 16 May 1998 17:55:47 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from europe.std.com (europe.std.com [199.172.62.20]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA22875 for ; Sat, 16 May 1998 17:55:44 -0700 (PDT) Received: from world.std.com by europe.std.com (8.7.6/BZS-8-1.0) id UAA12941; Sat, 16 May 1998 20:55:09 -0400 (EDT) Received: from unknown (world.std.com) by world.std.com (TheWorld/Spike-2.0) id AA17004; Sat, 16 May 1998 20:54:28 -0400 From: wallace@world.std.com (Andy Wallace) To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Shurite 1-100mA DC meter available Date: Sun, 17 May 1998 00:54:23 GMT Organization: Thermionic Liberation Front Reply-To: wallace@world.std.com Message-Id: <356723ac.32781601@world.std.com> X-Mailer: Forte Agent 1.0/16.390 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Folks! I have in my possession a Shurite square 0-100mA DC meter. A little bigger than 2.5" square. Looks like a round 2 - 1/8" hole to mount. Two mounting holes about 2 - 3/8" apart. Metal case, inexpensive, undamped BOING!!! type meter perfect for your AT-1 clone. I sold my AT-1 so I don't know if it fits that, but I don't think so. :-) Be glad to trade for a useful FT-243 rock in any ham band, an FT-243 from 5000-5440 kc (C.E. 20A exciter), or Drake range crystal... Please reply direct if interested. I think it works -- meter moves if I briefly touch my VOM probes to it... --Andy wallace@world.std.com From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 17 04:07:26 1998 X-UIDL: 2e07d765fd6ad7e8dda6a50be321666f Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id EAA01714 for ; Sun, 17 May 1998 04:07:25 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA26659 for glowbugs-outgoing; Sat, 16 May 1998 23:55:38 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from uhura.concentric.net (uhura.concentric.net [206.173.119.93]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA26654 for ; Sat, 16 May 1998 23:55:35 -0700 (PDT) Received: from marconi.concentric.net (marconi [206.173.119.71]) by uhura.concentric.net (8.8.8/(98/04/23 5.10)) id CAA15826; Sun, 17 May 1998 02:54:49 -0400 (EDT) [1-800-745-2747 The Concentric Network] Received: from ts003d20.alq-nm.concentric.net (ts003d20.alq-nm.concentric.net [206.173.164.80]) by marconi.concentric.net (8.8.8) id CAA08551; Sun, 17 May 1998 02:54:44 -0400 (EDT) Message-Id: <1.5.4.32.19980517065514.006af010@pop3.concentric.net> X-Sender: jdport@pop3.concentric.net X-Mailer: Windows Eudora Light Version 1.5.4 (32) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sun, 17 May 1998 00:55:14 -0600 To: glowbugs@piobaire.mines.uidaho.edu From: DEVCOM Subject: Re: GB> GunBusters? [yesteryear] Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 08:11 PM 5/15/98 PDT, you wrote: >Have to totally disagree with your opinion on the M-16. >While I don't like it either for completely different >reasons the stuff about the 3 round selective fire is crap. Well, your opinion would set well with the "gravel belly" sharpshooter concept condemned by the book and supposedly the main concept of the military since the Revolutionary War. I considered the M14 a long and heavy joke. In Nam the guys who had the knowledge and good sense imported M1 carbines and used them effectively. How the Army decided to lose the M1 and come out with a heavier, clunkier weapon is beyond me. The book I mentioned tells the author's version of how that came to be but I don't recall the details. I agree with your statement about lethality/accuracy with a lightweight weapon such as the M16 on full auto, it takes a VERY well trained shooter to hit what he thinks he's pointing at with the "rise" of the weapon as it "squirts". Only facing into a crowd quite close would it be very lethal, and then they all better be "bad guys" in the vicinity. But the AK47 certainly blew holes in many thousands of us on full auto, and after the humble operator had been lying in the mud and dust with it for who knows how long. The point was that the AR15 was a much deadlier weapon with higher muzzle velocity, reliable and unstoppable, and could "spray all day" compared with the M16 firing non-recommended ball powder with lower velocity and bigtime fouling/jamming problems. Supposedly those few North Vietnamese that ever faced the AR15 in battle were shot to pieces by it's American draftee unmotivated operators, and feared it greatly, instead of the other way around. One thing about the AK47, it's stutter certainly was different from any American weapon, and we never doubted whether it was enemy fire or not when we heard them. The M60 was no fun to pack around but it was easy to shoot and certainly hit things you aimed at. I would disagree with the basic idea that weapons problems were THE reason we lost the Vietnamese war. Our politicians' attempts to keep the public calmed by "only" exposing their sons and brothers and dads to the combat zone for "12 months and then you go home" certainly resulted in a hide-my-butt combat "spray and pray" method of holding the gun up in the air without even looking and burping it empty on full auto in hopes of scaring the enemy away or accidentally nailing a few. The WWII method of keeping combat GI's on the line until they either got killed or seriously wounded (with short rotations to rear echelons for breaks) resulted in the "get good or die" mode of combat, which of course with much tighter control of the news media helped our GI's become very serious and effective fighters, and then their release at the end of the war and coming home to heroe's welcomes helped them to put it behind them and get on with their lives. In retrospect I served a fairly wimpy tour with little actual danger, but I still feel pained when I recall coming home from a year of getting shot at at least occasionally in the name of patriotism and the "American Way" and getting only hostile or at best indifferent looks from anyone other than my immediate family. Most of us came home by ourselves, none of our fellow GI's escaping at the same time with us, and I remember a great deal of happiness to have gotten out on the one hand and guilt on the other, that my fellow GI's were still back in the SH** while I was back in "the World". It's great that our Desert Storm troops got all that glory and attention, it's just also shameful that our government's policies robbed us Nam GI's of a clear mission, national support, a feeling of doing something good for someone else, decent weapons, whatever. Where we were, at Camp Eagle near Phu Bai and Hue, South Vietnamese civilians were absolutely OFF LIMITS to us, we seldom ever saw any and felt like they were almost as much the enemy as the Viet Cong. Hard to get enthusiastic about that. Jim W5AOX From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 17 12:37:04 1998 X-UIDL: d2bdbe90a6bf24b199b8081037dd6fd0 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id MAA27976 for ; Sun, 17 May 1998 12:37:03 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA01874 for glowbugs-outgoing; Sun, 17 May 1998 09:16:08 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from camel14.mindspring.com (camel14.mindspring.com [207.69.200.64]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA01869 for ; Sun, 17 May 1998 09:16:03 -0700 (PDT) Received: from sorcery-2 (user-38lcik9.dialup.mindspring.com [209.86.74.137]) by camel14.mindspring.com (8.8.5/8.8.5) with SMTP id MAA20797 for ; Sun, 17 May 1998 12:15:44 -0400 (EDT) Message-Id: <3.0.5.32.19980517111633.0083a370@pop.pipeline.com> X-Sender: lrware@pop.pipeline.com X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Sun, 17 May 1998 11:16:33 +0000 To: glowbugs@piobaire.mines.uidaho.edu From: "Lawrence R. Ware" Subject: GB> FT-243 crystals Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Good afternoon folks, since I (like many others :-) didn't make it to Dayton again this year.... :-( I've been cleaning out my storage shed.... So it's time for round one of Larry's spring cleaning specials.... Normally I put this kind of stuff up on boatanchors instead of here, but since these crystals are about as primo glowbuggy as stuff gets, you gents get first crack this time. One box of 9 FT-243 crystals, one at 3743 KC (80 meter CW band I think?) and 8 at: 7038, 7042, 7120, 7125, 7130, 7140, 7142 and 7145 KC's... All these are in the CW portion of the 40 meter band I think? Sorry gents, but us non hams don't watch the band plans quite as close as you do... :-) Any way this pile of crystals will cost the lucky winner $3 for priority mail postage. -and- (Time for the "gotcha") The best funny story of what your going to use them for.... Winning entry may very well be reposted here, (with your name removed) Judges decision is final, Your voltage may vary. -Larry # Larry's Home for Wayward Test Equipment & Old Radios # Let your equipment retire in sunny central Florida. # Intensive Care, Private Bench Space, Frequent Use, # Factory trained HP, Tek & Fluke Surgeon on staff. # Good Home Guaranteed or double your junk back! # lrware@pipeline.com - Orlando, FL - # 407.679.1597 From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 17 16:43:37 1998 X-UIDL: 1ac961c6240e328fad240636b0f8b70a Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id QAA02292 for ; Sun, 17 May 1998 16:43:37 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA03483 for glowbugs-outgoing; Sun, 17 May 1998 13:11:47 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA03478 for ; Sun, 17 May 1998 13:11:43 -0700 (PDT) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id PAA10879; Sun, 17 May 1998 15:12:28 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id PAA06117; Sun, 17 May 1998 15:12:27 -0500 (EST) Date: Sun, 17 May 1998 15:12:25 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: Brian Carling cc: DEVCOM , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> 'Way back when In-Reply-To: <199805171521.LAA16777@relay.mnsinc.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! About television.... It was invented one piece at a time; once still photography, sound recording, motion pictures, radio and radiotelephony were around, TV was just about inevitable. But it's the teetering top of a house of cards, each little bit calling for all the support of the level that went before. One of the very first *descriptions* of flying-spot TV was made by a Russian engineer/dreamer; but he wrote in the days when telegraphy was a new art, and the technology to make TV work wasn't available. Baird lived when the needed electrical parts (photocells, decent amplifiers and a good controllable light source) were around, and had the vision and wit to work out the mechnicals. AFAIK, he's the first person to televise intelligible live pictures, and was doing so about the same time Phil Farnsworth was a teenager plowing a field and thinking about how to send pictures by radio; so Baird deservedly gets the credit. (He also *recorded* television pictures, but couldn't play them back well; that had to wait until just a few years back, when a Hewlett-Packard engineer in the UK got interested in the old Phonovision discs! He's got a WWW page, which a little digging will turn up). Baird's mechanicals were copied about as soon as he told folks what he had; early scanning-disc workers in the US included RCA/NBC in New York and Camden, WCFL in Chicago, IL, and just up the road from me, Purdue University in West Lafayette, IN (W9XG). Bell Telephone also did considerable non-broadcast work, some of it unique pixel-by-pixel "parallel" systems. (Very good, quite impossible to send by radio at that time and impractical to send by wire: one pair per pixel, several hundred pixels for a barely-good picture, a thousand for a fair one--and we think WWW pages eat up bandwidth!) (About 250,000 pixels for a very good modern TV picture if my figuring is right). All the mechanical systems were doomed; Farnsworth's electronically scanned system inspired others just as Baird's mechanical methods had earlier, and RCA in the US and EMI in the UK were among the first to produce their own versions. Resolution was higher, studios were a bit more bearable (this is relative--*any* early TV studio was a horrible place to be!), and synchronization was far simpler. (Camera pick-up tube technology was a big driving force, and there turned out to be several ways to do it; who was "first" depends on what kind of first you're talking about--Farnsworth is generally acknowledged as having done all-electronic TV before anyone else). By the late 1930s, the television standards that would be used for the next ~50 years were already largely worked out and on the air (at least experimentally) in the US, Great Britain and European continent. Name any principal of WW II, and in most cases you've named a place that was doing television by the time the war began. ...Amplifier and transmitter design for television was another specialized art, building on the "wideband" amps originally developed to drive the neon lamp in mechanical TV and broadband multiplex rigs used for trans-oceanic telephony. Much of it found use (and rapid improvement) in RDF/RADAR systems during WW II and then went back to civilian work after, much changed from what it was before; RCA's prewar 1kW "commercial" (one or two sold) TV transmitter is not very much like the (5kW) TT5 that went on the air all over the States not too long after V-J day. (I happened to see a little Daven "TV" amp from the '30s at Dayton--very cute thing, resistance-coupled with a nice molded Bakelite chassis and some silly person had stuck a set of blue Arctures tubes in it. The specs on it are not too much worse than an inexpensive hi-fi preamp of a few years back; but it was not really so long ago that it was super-duper state of the art....) 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 17 17:59:26 1998 X-UIDL: 8750e3453942544f0ee327757b57decc Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id RAA16350 for ; Sun, 17 May 1998 17:59:26 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA04481 for glowbugs-outgoing; Sun, 17 May 1998 14:30:57 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from uhura.concentric.net (uhura.concentric.net [206.173.119.93]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA04464 for ; Sun, 17 May 1998 14:30:46 -0700 (PDT) Received: from cliff.concentric.net (cliff [206.173.119.90]) by uhura.concentric.net (8.8.8/(98/04/23 5.10)) id RAA05404; Sun, 17 May 1998 17:30:19 -0400 (EDT) [1-800-745-2747 The Concentric Network] Received: from ts003d09.alq-nm.concentric.net (ts003d09.alq-nm.concentric.net [206.173.164.69]) by cliff.concentric.net (8.8.8) id RAA29069; Sun, 17 May 1998 17:30:16 -0400 (EDT) Message-Id: <1.5.4.32.19980517213041.006a5224@pop3.concentric.net> X-Sender: jdport@pop3.concentric.net X-Mailer: Windows Eudora Light Version 1.5.4 (32) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sun, 17 May 1998 15:30:41 -0600 To: rbarmore@indy.net, glowbugs@piobaire.mines.uidaho.edu From: DEVCOM Subject: Re: GB> 'Way back when Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 03:12 PM 5/17/98 -0500, you wrote: > >Hi! > > About television.... Well, I was in process of responding and looked into the mail list and found your response and thought, good grief, she said it better than I would have, so there. Great writing as usual, Bobbi. Jim W5AOX From glowbugs-owner@piobaire.mines.uidaho.edu Sun May 17 18:13:05 1998 X-UIDL: da80ee5e10533ff41923cd9011c96d60 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id SAA30387 for ; Sun, 17 May 1998 18:13:04 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA05195 for glowbugs-outgoing; Sun, 17 May 1998 14:47:00 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mh2.cts.com (root@mh2.cts.com [205.163.24.68]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA05188 for ; Sun, 17 May 1998 14:46:56 -0700 (PDT) Received: from bwallace.cts.com (bwallace.cts.com [205.163.6.53]) by mh2.cts.com (8.8.7/8.8.5) with ESMTP id OAA13185 for ; Sun, 17 May 1998 14:46:27 -0700 (PDT) Message-Id: <199805172146.OAA13185@mh2.cts.com> From: "Ben Wallace" To: Subject: Re: GB> 'Way back when Date: Sun, 17 May 1998 14:46:14 -0700 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1162 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Television's History "From Encarta 98 Encyclopedia" The scientific principles on which television is based were discovered in the course of basic research. Only much later were these concepts applied to television as it is known today. The first practical television system began operating in the 1940s. In 1873 the Scottish scientist James Clerk Maxwell predicted the existence of the electromagnetic waves that make it possible to transmit ordinary television broadcasts. Also in 1873 the English scientist Willoughby Smith and his assistant Joseph May noticed that the electrical conductivity of the element selenium changes when light falls on it. This property, known as photoconductivity, is used in the vidicon television camera tube. In 1888 the German physicist Wilhelm Hallwachs noticed that certain substances emit electrons when exposed to light. This effect, called photoemission, was applied to the image-orthicon television camera tube. Although several methods of changing light into electric current were discovered, it was some time before the methods were applied to the construction of a television system. The main problem was that the currents produced were weak and no effective method of amplifying them was known. Then, in 1906, the American engineer Lee De Forest patented the triode vacuum tube. By 1920 the tube had been improved to the point where it could be used to amplify electric currents for television. Nipkow Disk Some of the earliest work on television began in 1884, when the German engineer Paul Nipkow designed the first true television mechanism. In front of a brightly lit picture, he placed a scanning disk (called a Nipkow disk) with a spiral pattern of holes punched in it. As the disk revolved, the first hole would cross the picture at the top. The second hole passed across the picture a little lower down, the third hole lower still, and so on. In effect, he designed a disk with its own form of scanning. With each complete revolution of the disk, all parts of the picture would be briefly exposed in turn. The disk revolved quickly, accomplishing the scanning within one-fifteenth of a second. Similar disks rotated in the camera and receiver. Light passing through these disks created crude television images. Nipkow's mechanical scanner was used from 1923 to 1925 in experimental television systems developed in the United States by the inventor Charles F. Jenkins, and in England by the inventor John L. Baird. The pictures were crude but recognizable. The receiver also used a Nipkow disk placed in front of a lamp whose brightness was controlled by the signal from the light-sensitive tube behind the disk in the transmitter. In 1926 Baird demonstrated a system that used a 30-hole Nipkow disk. Simultaneous to the development of a mechanical scanning method, an electronic method of scanning was conceived in 1908 by the English inventor A. A. Campbell-Swinton. He proposed using a screen to collect a charge whose pattern would correspond to the scene, and an electron gun to neutralize this charge and create a varying electric current. This concept was used by the Russian-born American physicist Vladimir Kosma Zworykin in his iconoscope camera tube of the 1920s. A similar arrangement was later used in the image-orthicon tube. The American inventor and engineer Philo Taylor Farnsworth also devised an electronic television system in the 1920s. He called his television camera, which converted each element of an image into an electrical signal, an image dissector. Farnsworth continued to improve his system in the 1930s, but his project lost its financial backing at the beginning of World War II (1939-1945). Many aspects of Farnsworth's image dissector were also used in Zworykin's more successful iconoscope camera. Cathode rays, or beams of electrons in evacuated glass tubes, were first noted by the British chemist and physicist Sir William Crookes in 1878. By 1908 Campbell-Swinton and a Russian, Boris Rosing, had independently suggested that a cathode-ray tube (CRT) be used to reproduce the television picture on a phosphor-coated screen. The CRT was developed for use in television during the 1930s by the American electrical engineer Allen B. DuMont. DuMont's method of picture reproduction is essentially the same as the one used today. The first home television receiver was demonstrated in Schenectady, New York, on January 13, 1928, by the American inventor Ernst F. W. Alexanderson. The images on the 76-mm (3-in) screen were poor and unsteady, but the set could be used in the home. A number of these receivers were built by the General Electric Company (GE) and distributed in Schenectady. On May 10, 1928, station WGY began regular broadcasting to this area. From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 18 10:18:11 1998 X-UIDL: 1bf0597c3db30a87afc1a0fa97034607 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id KAA30043 for ; Mon, 18 May 1998 10:18:11 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA14253 for glowbugs-outgoing; Mon, 18 May 1998 06:52:02 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from b11.b11.ingr.com (b11.b11.ingr.com [129.135.220.100]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id GAA14246 for ; Mon, 18 May 1998 06:51:55 -0700 (PDT) Received: from ro.com (lilliput.b11.ingr.com) by b11.b11.ingr.com (5.65c/1.921207) id AA23266; Mon, 18 May 1998 08:51:39 -0500 Message-Id: <35603CEB.9151F323@ro.com> Date: Mon, 18 May 1998 08:51:39 -0500 From: Dan Kerl X-Mailer: Mozilla 4.04 [en] (WinNT; I) Mime-Version: 1.0 To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Oven elements... References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Ken Gordon wrote: > > Does anyone know if the characteristics of nichrome wire, as found in > replacement oven elements, would be suitable for use as high-wattage grid > leaks? It seems to me that they are rather low resistance though. What I > need is about 200 Watts worth of about 50 k Ohms, but I have to be able to > adjust the resistance to balance the tubes (Push Pull). Ideas? It would take a whole bunch of these in series to get 50K. For example, a 1 kW element designed to operate at 120V would have a hot resistance of a little less than 15 ohms. Cold resistance would be a good bit lower. I would probably just find some non inductive power resistors that I could use in series-parallel combinations to achieve your target values (e.g. ten 5K 20W units in series, etc.). Can you figure out how to mount this stuff ? Is inductance a problem (what frequencies) ? Operating temperature (NiCr resistance wire has a pretty high temp coeff)? Lets see... 200W in 50K requires a little over 3100V. This sounds like an interesting project. :-). -- Dan Kerl dlkerl@ro.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 18 09:43:41 1998 X-UIDL: 357a76808964d8c2d807c81713546183 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id JAA17584 for ; Mon, 18 May 1998 09:43:41 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA13737 for glowbugs-outgoing; Mon, 18 May 1998 06:17:22 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from els.imed.com (imed.com [192.246.2.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id GAA13732 for ; Mon, 18 May 1998 06:17:18 -0700 (PDT) Received: from mails.imed.com by els.imed.com with SMTP (1.38.193.5/15.6) id AA19882; Mon, 18 May 1998 08:16:36 -0500 Received: from ccMail by mails.imed.com (IMA Internet Exchange 2.1 Enterprise) id 000ABF48; Mon, 18 May 98 08:15:05 -0600 Mime-Version: 1.0 Date: Mon, 18 May 1998 08:11:32 -0600 Message-Id: <000ABF48.@mails.imed.com> From: mack@mails.imed.com (Ray Mack) Subject: Re: GB> Mighty Midget RX (April '66 QST) To: glowbugs@piobaire.mines.uidaho.edu Cc: homebrew@qth.net Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Bill: THis uses a circuit that is similar to the HR-10 from Heath. There is plenty of capcitance (a few uuf) between the plates of the 6U8 triode and pentode that the BFO (the triode) couples energy into the pentode plate circuit. You now have the amplified IF signal and the BFO signal coupled into the last IF transformer. You are absolutely correct that the mixing occurs in the detector itself! In the HR-10, this method of injection really messes with the AGC which is derived from the detector voltage. I would guess that the HR-10 was designed to use AGC on AM only and manual gain on CW. If memory serves correctly, these designs come from around the time of the transistion from AM to SSB. There wasn't much SSB in the very early 60's. This probably explains why the IF is so wide in the HR-10. Ray Mack WD5IFS mack@mails.imed.com Friendswood (Houston), TX ______________________________ Reply Separator _________________________________ Glowbuggers: There is a Lew McCoy receiver in the April 1966 QST that is really very tempting. Three 6U8s. Single conversion superhet with a 455 kc IF. Crystal filter using two FT-243 rocks. The one qustion I have relates to the detector. Its a very simple solid state diode detector. Two 1N34a's in a voltage doubler arrangement between the IF amp and the AF amp. Half of one of the 6U8's is used as a BFO at 455 (+/-) kc. Here's where I'm confused: Text reads: "There is sufficient bfo signal injection in V3A (IF AMP) without using a coupling capacitor, so none was used." The IF amp has a 455 kc transformer can in the plate. Seems to me if the mixing with the BFO energy was taking place in that stage, the resulting AF wouldn't make it through the can to the detector and AF AMP. Could it be that the mixing takes place in the detector circuit itself? Anyone have any experience with this RX? Thanks, 73 de N2CQR Bill Meara, Falls Church, Virginia From glowbugs-owner@piobaire.mines.uidaho.edu Mon May 18 07:39:00 1998 X-UIDL: 14c0ef6fb89d88a6ed1b84fee4ef3b21 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.0.Gamma0/8.9.0.Gamma0) with ESMTP id HAA14366 for ; Mon, 18 May 1998 07:39:00 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id EAA11905 for glowbugs-outgoing; Mon, 18 May 1998 04:12:28 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp2.erols.com (smtp2.erols.com [207.172.3.235]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id EAA11895 for ; Mon, 18 May 1998 04:12:23 -0700 (PDT) Received: from LOCALNAME (207-172-52-49.s49.tnt1.brd.erols.com [207.172.52.49]) by smtp2.erols.com (8.8.8/8.8.5) with SMTP id HAA25621; Mon, 18 May 1998 07:12:15 -0400 (EDT) Message-Id: <199805181112.HAA25621@smtp2.erols.com> X-Sender: wmeara@pop.erols.com X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Mon, 18 May 1998 11:10:54 -0400 To: glowbugs@piobaire.mines.uidaho.edu From: Bill Meara Subject: GB> Mighty Midget RX (April '66 QST) Cc: homebrew@qth.net Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Glowbuggers: There is a Lew McCoy receiver in the April 1966 QST that is really very tempting. Three 6U8s. Single conversion superhet with a 455 kc IF. Crystal filter using two FT-243 rocks. I have most of the needed parts, but before I start melting solder, I want to make sure I understand the circuit. The one qustion I have relates to the detector. Its a very simple solid state diode detector. Two 1N34a's in a voltage doubler arrangement between the IF amp and the AF amp. Half of one of the 6U8's is used as a BFO at 455 (+/-) kc. Here's where I'm confused: Text reads: "There is sufficient bfo signal injection in V3A (IF AMP) without using a coupling capacitor, so none was used." The IF amp has a 455 kc transformer can in the plate. Seems to me if the mixing with the BFO energy was taking place in that stage, the resulting AF wouldn't make it through the can to the detector and AF AMP. Could it be that the mixing takes place in the detector circuit itself? Anyone have any experience with this RX? Thanks, 73 de N2CQR Bill Meara, Falls Church, Virginia wmeara@erols.com G-QRP #7965 http://www.mindspring.com/~johnmb/billm.htm From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 5 21:58:59 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA20107 for ; Fri, 5 Feb 1999 21:58:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA08255 for glowbugs-outgoing; Fri, 5 Feb 1999 18:35:45 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id SAA08250 for ; Fri, 5 Feb 1999 18:35:42 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 5 Feb 1999 18:35:42 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> QRG and BA Bob... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Been listening on the 80 and 40 meter QRGs the last few days. Haven't heard any of us on there. Some sort of contest on tonight. Anyone know what it is? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 6 01:22:28 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA14876 for ; Sat, 6 Feb 1999 01:22:26 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA09900 for glowbugs-outgoing; Fri, 5 Feb 1999 22:12:54 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA09894 for ; Fri, 5 Feb 1999 22:12:50 -0800 (PST) Received: from default (rorqual48.pcola.gulf.net [208.22.198.111]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id AAA12794 for ; Sat, 6 Feb 1999 00:12:03 -0600 (CST) Message-ID: <00d101be5193$e214aa00$4e47a0cd@default> Reply-To: "rbigg" From: "rbigg" To: Subject: GB> Fw: Date: Fri, 5 Feb 1999 23:45:14 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >I need to make contact with someone who can answer some technical questions >about an old hunk of SBE gear, model SB2-LA linear amp. I have one that >works fine, but has a circuit mod that I don't understand the function of. >I have schematics of circuit with and without mod. I would like to be able >to get an opinion of what the mod does. I can mail copies of the >skizzmatics to anyone who might want to take a shot at this, or fax them. I want to be >able to make an informed decision of whether to keep the mod as is, or go >back to the original config. This may have been a common and popular mod to >this rig, and a performance improvement, don't know > >Ron, K5BDJ. > From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 6 10:58:25 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA00739 for ; Sat, 6 Feb 1999 10:58:22 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA15653 for glowbugs-outgoing; Sat, 6 Feb 1999 07:48:21 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo20.mx.aol.com (imo20.mx.aol.com [198.81.17.10]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA15648 for ; Sat, 6 Feb 1999 07:48:17 -0800 (PST) From: GeiselD@aol.com Received: from GeiselD@aol.com by imo20.mx.aol.com (IMOv18.1) id DDGTa19751 for ; Sat, 6 Feb 1999 10:46:52 -0500 (EST) Message-ID: <4b917020.36bc63ec@aol.com> Date: Sat, 6 Feb 1999 10:46:52 EST To: glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: Re: GB> QRG and BA Bob... Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 4.0 for Windows 95 sub 236 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO In a message dated 2/5/99 8:53:46 PM Central Standard Time, keng@uidaho.edu writes: > Been listening on the 80 and 40 meter QRGs the last few days. Haven't > heard any of us on there. Ken and the other chops: Didn't hear u last nite. Jack (W7QQQ) and I carried forth on 80 from around 02:30 till 04:00. John (W7ZFB) joined us later in the session. We were pretty religious about dragging our feet and tried a couple of QRZ calls with no result. Jack was on his very fb 865 ECO rig tt he now has on vxo with a rock with series cap hanging across the tank. It is giving him several kc of vxo qsy while keeping a very nice note. We will have to try that. John was on the Elmac. Conditions were outstanding with absolutely no QRN at this QTH. Sandy brought us some interesting dx to the QRG on Tuesday night. He announced that he had been on the low end of 40 and that the skip condx was about to come to 80 like a ton of cement. So we later got a call on the QRG from YO3PQ. He was Q5 to Sandy, Bob (AC5AM) and I. The reason for the excellent skip condx was that Mircea was on a freighter in the Gulf south of Alabama carrying 2500 tons of cement. ( I hope seafaring chops on QRG strarts a trend). Hence Sandy's excellent leg pulling. I believe Mircea returned Wed nite to the QRG but I missed that one. Mircea has an excellent QRQ CW fist and a great time was had by all. We are now calling Sandy our "dx bird dog". Tnx Sandy.I imagine tt Mircea will be in the area a few days - so listen for him. We'll listen fer u agn tonite on the 80 QRG. 73 CUL de Darwin K5DOA ZUT From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 6 16:35:30 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA10575 for ; Sat, 6 Feb 1999 16:35:29 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA18608 for glowbugs-outgoing; Sat, 6 Feb 1999 13:15:04 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hawk.csrv.uidaho.edu (root@hawk.csrv.uidaho.edu [129.101.119.220]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA18603 for ; Sat, 6 Feb 1999 13:15:01 -0800 (PST) Received: from default (pppl139.moscow.com [199.245.242.139]) by hawk.csrv.uidaho.edu (8.8.6 (PHNE_14041)/) with SMTP id NAA23156; Sat, 6 Feb 1999 13:14:30 -0800 (PST) Message-Id: <199902062114.NAA23156@hawk.csrv.uidaho.edu> Comments: Authenticated sender is From: "Kenneth G. Gordon" To: Bill Meara Date: Sat, 6 Feb 1999 13:13:04 -0800 Subject: Re: GB> VF-1 VFO info ? Reply-to: keng@uidaho.edu CC: glowbugs@piobaire.mines.uidaho.edu, Mark_Dittmar@Maxtor.COM Priority: normal In-reply-to: <199901141030.FAA14536@smtp4.erols.com> X-mailer: Pegasus Mail for Win32 (v2.54) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Mark: I'm using a VF-1 with my DX-60B. Mine was in very rough condition > when I got it and had been put together very badly. I just gutted it and > started over, working from the schematic. I ended up with a few more > terminal stips than Heath intended, but I may have earned a bit more > mechanical stability. My first VF-1 was a total basket-case too. I too gutted it and completely rebuilt it from the original manual. When I got done with it, it was stable enough for RTTY use up through 20 meters. I didn't notice any drift in it at all. I suppose the fact that I never turned it off had something to do with that. > > Mine works fine and is pretty stable if I let it warm up for a while. I too > like the 160 meter coverage. I also like the fact that it is the same VFO > as was used in the DX-100, a rig that featured prominently in my teenage ham > radio adventures. The green dial light is cool. Yes. I like that too! :-) Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 7 00:45:04 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA20831 for ; Sun, 7 Feb 1999 00:45:03 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA23330 for glowbugs-outgoing; Sat, 6 Feb 1999 21:30:35 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA23325; Sat, 6 Feb 1999 21:30:31 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sat, 6 Feb 1999 21:30:31 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: msix@nmia.com cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Ken - > Just discovered I was deleted from the GB list. Huh? How did that happen? > Re subscribed tonite. > Would you kindly see it get fixed. Will do now. > Hope you can make CX... > When, etc.? BTW, I worked K1EYY, Carl, in CT last night on 80 meters. I am sure I could have worked the BA gang if anyone had been there. It was about midnight EST. The vertical seems to be working pretty well... Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 7 09:01:07 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA31652 for ; Sun, 7 Feb 1999 09:01:07 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id FAA27755 for glowbugs-outgoing; Sun, 7 Feb 1999 05:49:52 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m25.boston.juno.com (m25.boston.juno.com [205.231.100.187]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id FAA27747 for ; Sun, 7 Feb 1999 05:49:47 -0800 (PST) Received: (from ne1s@juno.com) by m25.boston.juno.com (queuemail) id D2UY5YZT; Sun, 07 Feb 1999 08:49:35 EST To: keng@uidaho.edu Cc: glowbugs@piobaire.mines.uidaho.edu Date: Sun, 7 Feb 1999 08:20:56 -0500 Subject: GB> Re: GB Message-ID: <19990207.082058.3246.0.NE1S@juno.com> References: X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 0,2-12,14-15,19-22 From: Larry M Szendrei Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Sat, 6 Feb 1999 21:30:31 -0800 (PST) Ken Gordon writes (among other stuff): >BTW, I worked K1EYY, Carl, in CT last night on 80 meters. I am sure I >could have worked the BA gang if anyone had been there. It was about >midnight EST. The vertical seems to be working pretty well... > >Ken W7EKB > > Hi Ken, SInce I live in Maine, I hear/talk to Carl regularly on 75M AM. Did you work him on CW or AM? I have never worked Carl on CW. BTW, CX (Classic Exchange) is on today Sunday from 1900UTC to 0400UTC Feb 8 (e.g.,1400 - 2300 EST tonite). I hear tell most active freqs will be 3.545 and 7.045 Mc. Look for me there +/- QRM. I'll be on my HBrew 6EW6 -> 6AG7 -> 6DQ6 rig on 40M, and my PP801 TNT on 80M. 73, Larry/NE1S ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 7 12:21:04 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA19807 for ; Sun, 7 Feb 1999 12:21:03 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA29158 for glowbugs-outgoing; Sun, 7 Feb 1999 09:10:39 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA29153; Sun, 7 Feb 1999 09:10:34 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sun, 7 Feb 1999 09:10:34 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Larry M Szendrei cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB In-Reply-To: <19990207.082058.3246.0.NE1S@juno.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Hi Ken, > > SInce I live in Maine, I hear/talk to Carl regularly on 75M AM. Did you > work him on CW or AM? I have never worked Carl on CW. CW. About 7050. He had to end the QSO early because he had received a telephone call! :-) > > BTW, CX (Classic Exchange) is on today Sunday from 1900UTC to 0400UTC Feb > 8 (e.g.,1400 - 2300 EST tonite). I hear tell most active freqs will be > 3.545 and 7.045 Mc. Look for me there +/- QRM. I'll be on my HBrew 6EW6 > -> 6AG7 -> 6DQ6 rig on 40M, and my PP801 TNT on 80M. I will be listening!!!!! Here, I have 50 watts output to the 80/40 meter vertical. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Mon Feb 8 00:37:48 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA27449 for ; Mon, 8 Feb 1999 00:37:43 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA06041 for glowbugs-outgoing; Sun, 7 Feb 1999 21:25:07 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA06035 for ; Sun, 7 Feb 1999 21:25:03 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sun, 7 Feb 1999 21:25:03 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> NA4G... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Anyone have any idea why his e-mail to the Seed Lab keeps bouncing? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Mon Feb 8 13:17:39 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA03650 for ; Mon, 8 Feb 1999 13:17:37 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA12950 for glowbugs-outgoing; Mon, 8 Feb 1999 09:38:50 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from zeus.maxtor.com (zeus.maxtor.com [134.6.32.3]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA12945 for ; Mon, 8 Feb 1999 09:38:45 -0800 (PST) Received: from Longmont64.Maxtor.COM (longmont64.mlm.maxtor.com [134.6.79.210]) by zeus.maxtor.com (8.9.1/8.9.1) with SMTP id KAA02484 for ; Mon, 8 Feb 1999 10:32:52 -0700 (MST) Received: by Longmont64.Maxtor.COM with VINES-ISMTP; Mon, 8 Feb 99 10:38:15 MST Date: Mon, 8 Feb 99 11:38:11 CST Message-ID: X-Priority: 3 (Normal) To: From: "Mark Dittmar" Reply-To: Subject: GB> Looking for sockets... X-Incognito-SN: 368 X-Incognito-Version: 4.11.23 MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi- I am in the process of collecting parts for the "Low-Cost Crystal Transmitter" featured in the March 1936 QST. I have everything except for a few sockets. I am looking for three 6-pin tube sockets ( for 2A5 pentodes ). FYI, the transmitter is all 2A5 pentodes, one as xtal osc and the other two in parallel for final. Power output about 10 watts. Also, although I know it's a long shot, I am looking for sockets for the round cased "Bliley" crystals. I recently found some of these crystals, types LD-2 and B5. The LD-2 one I have is right on the BA QRG, so should work out great. By the way, why do these crystals have one pin marked as "GND" ? ANy leads on these items appreciated, 73, Mark, AB0CW From glowbugs-owner@piobaire.mines.uidaho.edu Mon Feb 8 20:46:00 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA04995 for ; Mon, 8 Feb 1999 20:45:44 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA18087 for glowbugs-outgoing; Mon, 8 Feb 1999 17:22:41 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc07.worldnet.att.net (mtiwmhc07.worldnet.att.net [204.127.131.42]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA18082 for ; Mon, 8 Feb 1999 17:22:35 -0800 (PST) Received: from LOCALNAME ([12.73.239.210]) by mtiwmhc07.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990209012126.FCFU24623@LOCALNAME>; Tue, 9 Feb 1999 01:21:26 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: badger@telalink.net, , heathkit@qth.net, HEATH@LISTSERV.TEMPE.GOV From: Sandy W5TVW Subject: GB> Re: 1V2s Message-Id: <19990209012126.FCFU24623@LOCALNAME> Date: Tue, 9 Feb 1999 01:21:26 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The 1V2 high voltage rectifier was used in the Heathkit HO-10 Monitor 'scope and the HO-13 Panadapters. The later SB models used solid state diodes. This is the only thing I've *ever* seen them used in. So don't throw them away without finding some HO-10/13 owners first. 73, E. V. Sandy Blaize, W5TVW "Boat Anchors collected, restored, repaired, traded and used!" 417 Ridgewood Drive Metairie, LA., 70001 ********* W A N T E D ! ! W A N T E D ! !********* ****** Transmitter/Receiver RT-46/TRC-10 ****** ********* Hallicrafters SR-75 Transceiver ******** ********* Hallicrafters HT-44 Transmitter ******** From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 9 11:08:48 1999 Return-Path: Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA31601 for ; Tue, 9 Feb 1999 11:08:45 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA26016 for glowbugs-outgoing; Tue, 9 Feb 1999 07:29:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m21.boston.juno.com (m21.boston.juno.com [205.231.100.189]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA26011 for ; Tue, 9 Feb 1999 07:29:47 -0800 (PST) Received: (from mharla@juno.com) by m21.boston.juno.com (queuemail) id D22BLRMM; Tue, 09 Feb 1999 10:28:37 EST To: glowbugs@piobaire.mines.uidaho.edu Date: Tue, 9 Feb 1999 10:26:24 -0500 Subject: GB> 1V2 Message-ID: <19990209.102816.-3201759.0.mharla@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Line-Breaks: 0-1,6-7 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit From: Michael J Harla Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello, The 1V2 was used in 50's consumer-type oscillascopes such as the EICO 460, and many by Heath. As of a few years ago, they were common enuf to be offered as specials at the Fathauers' AES. I have a later-model Eico 460 with a ss rectifier instead of the 1V2, since the CRT potential is under 2 KV. Mike, N2MHO in SNJ. From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 10 03:46:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA00516 for ; Wed, 10 Feb 1999 03:45:59 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA14308 for ; Wed, 10 Feb 1999 02:45:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA06868 for glowbugs-outgoing; Tue, 9 Feb 1999 23:24:20 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id XAA06859 for ; Tue, 9 Feb 1999 23:24:17 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 9 Feb 1999 23:24:17 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Glowbugs@piobaire.mines.uidaho.edu Subject: GB> Tube info... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Anyone here know what a 3D21 is? Base diagram? Characteristics? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 10 10:58:25 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA00753 for ; Wed, 10 Feb 1999 10:58:25 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA12464 for ; Wed, 10 Feb 1999 09:58:14 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA09777 for glowbugs-outgoing; Wed, 10 Feb 1999 06:43:35 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo13.mx.aol.com (imo13.mx.aol.com [198.81.17.3]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA09772 for ; Wed, 10 Feb 1999 06:43:30 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo13.mx.aol.com (IMOv18.1) id 7WGTa05309 for ; Wed, 10 Feb 1999 09:40:23 -0500 (EST) Message-ID: <53d0e89.36c19a57@aol.com> Date: Wed, 10 Feb 1999 09:40:23 EST To: Glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: GB> Roadside Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hey, Gang: Found something lying beside the curb in the neighborhood i haven't seen in years: a junked tube-type Hi-Fi receiver from about the late forties or early fifties, just glancing at the tubes and the 6E11 tuning indicator. Cabinette is beyond help, and it has obviously been exposed to abuse, but the PARTS!! Next project: Either make another cabinette to fit, which i doubt i have time for, or to hit the construction trail and make something from the parts. Actually, i'm kinda excited ! The thing lights up, and the audio portion sorta works. Just for academics: it is an RCA Orthophonic "Hi-Fi" am-fm receiver, according to whats left of the front panel. Has a nice power supply, with caps that look suspiciously new. Will keep posted . vry 73---Wd4nka gary. From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 10 18:09:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA01397 for ; Wed, 10 Feb 1999 18:09:28 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA12938 for ; Wed, 10 Feb 1999 17:09:18 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA15515 for glowbugs-outgoing; Wed, 10 Feb 1999 13:18:42 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id NAA15510 for ; Wed, 10 Feb 1999 13:18:38 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Wed, 10 Feb 1999 13:18:38 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> 80 meters... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO has been pretty good, provided you stay up late enough. :-) Worked N1SS, Pete, in Maine this morning about 11:00 UTC. Signals were weak, but Q-5 for the whole QSO. He told me that he is very near New Brunswick. Also worked a bunch of guys and gals in the Nevada/CA areas. One was only running 7 watts and was an easy 579. Didn't hear much DX though! ;-) Ken From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 10 18:49:02 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA01419 for ; Wed, 10 Feb 1999 18:49:01 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA23646 for ; Wed, 10 Feb 1999 17:48:53 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA16460 for glowbugs-outgoing; Wed, 10 Feb 1999 14:07:47 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pocahontas.pdq.net (mail.pdq.net [204.145.251.78]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA16455 for ; Wed, 10 Feb 1999 14:07:39 -0800 (PST) X-AirNote: 1 Received: from 56K-016.MaxTNT1.pdq.net [209.144.226.16-5] by alice.pdq.net; Wed, 10 Feb 1999 16:07:08 -0600 Message-Id: <4.1.19990210155952.00b928f0@pop.pdq.net> X-Sender: bratcher@pop.pdq.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1 Date: Wed, 10 Feb 1999 16:03:14 -0600 To: Glowbugs@piobaire.mines.uidaho.edu From: "Robert M. Bratcher Jr." Subject: Re: GB> Roadside In-Reply-To: <53d0e89.36c19a57@aol.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Reminds me of the Curtis Mathis console stereo I found on a curb 6 years ago. Only thing wrong with it was a bad turntable motor. Was able to replace that motor a year later and it still sits on my bedroom. By the way it's all tube... At 09:40 AM 2/10/99 -0500, you wrote: >Hey, Gang: > >Found something lying beside the curb in the neighborhood >i haven't seen in years: a junked tube-type Hi-Fi receiver >from about the late forties or early fifties, just glancing at >the tubes and the 6E11 tuning indicator. > >Cabinette is beyond help, and it has obviously been exposed >to abuse, but the PARTS!! > >Next project: Either make another cabinette to fit, which >i doubt i have time for, or to hit the construction trail and >make something from the parts. > >Actually, i'm kinda excited ! > >The thing lights up, and the audio portion sorta works. > >Just for academics: it is an RCA Orthophonic "Hi-Fi" >am-fm receiver, according to whats left of the front >panel. Has a nice power supply, with caps that >look suspiciously new. > >Will keep posted . > >vry 73---Wd4nka >gary. From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 12 03:11:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA02633 for ; Fri, 12 Feb 1999 03:11:04 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA08960 for ; Fri, 12 Feb 1999 02:11:20 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA08460 for glowbugs-outgoing; Thu, 11 Feb 1999 22:52:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from goose.prod.itd.earthlink.net (goose.prod.itd.earthlink.net [207.217.120.18]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA08454 for ; Thu, 11 Feb 1999 22:52:49 -0800 (PST) Received: from rmccarty.earthlink.net (pool049-max6.ds9-ca-us.dialup.earthlink.net [209.178.5.149]) by goose.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id WAA24759; Thu, 11 Feb 1999 22:51:46 -0800 (PST) From: "Roger A. McCarty" To: "'HomeBrew'" , "Glowbugs@Piobaire. Mines. Uidaho. Edu" Subject: GB> Air wound coil question Date: Thu, 11 Feb 1999 22:56:55 -0800 Message-ID: <000201be5654$e01d22c0$9505b2d1@rmccarty.earthlink.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Importance: Normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have no experience in this area, before my time, please advise. I am building a tube type Qrp rig from a '51 CQ article. It uses a regen receiver. The tickler coil is made of a 36" piece of wire, according to the author, "Scramble wound and laced with string to hold it's form". Perhaps I'm too literal but "Scramble Wound" and "Hold it's form" are dichotomous concepts to me. What "form" is there in a scramble wound coil? I guess my real question is; How critical are these coils? Is scramble wound truly a mish mash of windings ? or should one attempt to keep the windings clean and parallel to one another? If one does "lace" the coil to hold it's form, how critical is it to ensure the windings do not overlap one another? Thanks in advance Roger A. McCarty ARS KD6CC http://www.qsl.net/kd6cc Qrp-L #1555 Southern California From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 12 11:38:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA02895 for ; Fri, 12 Feb 1999 11:38:28 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA15243 for ; Fri, 12 Feb 1999 10:38:52 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA12600 for glowbugs-outgoing; Fri, 12 Feb 1999 07:09:14 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id HAA12595; Fri, 12 Feb 1999 07:09:10 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 12 Feb 1999 07:09:09 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Roger A. McCarty" cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Air wound coil question In-Reply-To: <000201be5654$e01d22c0$9505b2d1@rmccarty.earthlink.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > I am building a tube type Qrp rig from a '51 CQ article. It uses a regen > receiver. The tickler coil is made of a 36" piece of wire, according to the > author, "Scramble wound and laced with string to hold it's form". Perhaps > I'm too literal but "Scramble Wound" and "Hold it's form" are dichotomous > concepts to me. What "form" is there in a scramble wound coil? The form of a small doughnut. > > I guess my real question is; How critical are these coils? It kind of depends on what you mean by "critical". Usually there is quite a bit of lee-way built into these designs. > Is scramble wound > truly a mish mash of windings ? In ONE sense only: that the windings do not all lay parallel to one another. Scramble winding is ordinarily used where either a) there are too many windings necessary to achieve the required inductance for the available space, and b) where some mechanical strength is sought when using very small wire, or c) both. The coil INSIDE diameter is usually one "critical" factor, and its overall height when the coil is, for instance, lying on the bench, is the other. An excellent example of "scramble" winding is a single "pie" from an old RF choke. > or should one attempt to keep the windings > clean and parallel to one another? Not if the requirements are for "scramble" winding. > If one does "lace" the coil to hold it's > form, how critical is it to ensure the windings do not overlap one another? The windings MUST overlap one-another in a scramble wound coil. Another example of scramble-winding is the bobbin in a sewing machine: you are not concerned with neatness of winding so much as you are about filling the available space. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 12 18:34:36 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA07413 for ; Fri, 12 Feb 1999 18:34:35 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA08175 for ; Fri, 12 Feb 1999 17:35:01 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA19617 for glowbugs-outgoing; Fri, 12 Feb 1999 13:58:26 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo14.mx.aol.com (imo14.mx.aol.com [198.81.17.4]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA19612 for ; Fri, 12 Feb 1999 13:58:17 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo14.mx.aol.com (IMOv18.1) id 1OIZa05514; Fri, 12 Feb 1999 16:46:28 -0500 (EST) Message-ID: <9d267400.36c4a134@aol.com> Date: Fri, 12 Feb 1999 16:46:28 EST To: rmccarty@earthlink.net Cc: Glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: Re: GB> Air wound coil question Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Roger: Probably the only thing that i can add to what Ken has already mentioned is in your Q. about the critical nature of these coils: as far as regenerative receivers go, in my trafficking with them, i have found coil parameters to be extremely forgiving, especially due to the fact that the components which orbit most of the tuned circuits involved vary from person to person, even tube to tube. I usually have to experiment with my tickler windings, as far as spacing from the input LC coil, and as well for number of turns. To me, that is the beauty of these projects, they demand a certain amount of tayloring. Have fun, and keep us posted on your progress! vry 73, Gary, wd4nka In a message dated 99-02-12 01:55:42 EST, you write: << I guess my real question is; How critical are these coils? >> From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 12 19:05:58 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA07433 for ; Fri, 12 Feb 1999 19:05:54 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA13880 for ; Fri, 12 Feb 1999 18:06:13 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA20019 for glowbugs-outgoing; Fri, 12 Feb 1999 14:32:45 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA20014 for ; Fri, 12 Feb 1999 14:32:42 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 12 Feb 1999 14:32:42 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> (Fwd) [SYSADS] [UI99-01] HAPPY99.EXE (fwd) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Well, gang, I thought I would pass this on to you since I received it directly from (the U of Idaho's) horse's mouth, so to speak. You are free to ignore it, pass it on, or toss it as you see fit. Ken W7EKB ------- Forwarded Message Follows ------- From: "Huba Leidenfrost" To: Copies to: Subject: [SYSADS] [UI99-01] HAPPY99.EXE Date sent: Fri, 12 Feb 1999 14:07:46 -0800 ITS (Information Technology Services) recently disabled a users account after complaints that the user was sending a virus to others. It ended up being an unintentionally transmitted virus. This advisory is to explain what the happy99.exe virus (also known as the Ska Virus) is and to remind people to be very careful whose attachments you open. This and other programs like it can bring our mail servers to their knees by launching a multitude of unnecessary mail, including numerous complaints from the Internet. If you receive an attachment called HAPPY99.EXE or see one in a USENET article, please do not open it. If you did you would watch a window with cute little fireworks display on your screen, while in the background some networking related files on your system are modified. The next time you send a piece of mail, or read news, you also share the virus with others. You may read more about this virus at the Symantec AntiVirus Research Center: http://www.symantec.com/avcenter/venc/data/happy99.worm.html. A related article with a better explanation of how to remove the beast is: http://www.zdnet.com/zdnn/stories/news/0,4586,2208275,00.html. This virus does not affect Macs, DOS, Windows 3.x, OS/2 or UNIX systems. If you do not have a virus checker installed and actively monitoring files on your system, please take a moment and install one now. ITS suggests you use SOPHOS Anti-Virus for Windows 95/98 with InterCheck for on-access scanning: http://www.sophos.com/downloads/eval/. Other companies with anti-virus software are Symantec and McAfee. H u b a -- --- O HUBA LEIDENFROST Network Systems Analyst -- <^- huba@uidaho.edu U of Idaho ITS: Networks & Systems -- -\/\ http://www.uidaho.edu/~huba --- \ TEL: 208.885.6721 FAX: 208.885.7539 ---------------------------------------------------------------------------- Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 12 21:36:07 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA07529 for ; Fri, 12 Feb 1999 21:36:06 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA10463 for ; Fri, 12 Feb 1999 20:36:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA21764 for glowbugs-outgoing; Fri, 12 Feb 1999 17:14:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay1.Hawaii.Edu (root@relay1.hawaii.edu [128.171.3.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id RAA21755 for ; Fri, 12 Feb 1999 17:14:50 -0800 (PST) Received: from uhunix5.its.hawaii.edu ([128.171.44.55]) by relay1.Hawaii.Edu with SMTP id <150370(6)>; Fri, 12 Feb 1999 15:14:11 -1000 Received: from localhost by uhunix5.its.Hawaii.Edu with SMTP id <135671(5)>; Fri, 12 Feb 1999 15:14:03 -1000 Date: Fri, 12 Feb 1999 15:13:59 -1000 From: "Jeffrey Herman (WH6U)" X-Sender: jeffreyh@uhunix5 To: Ken Gordon cc: "Roger A. McCarty" , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Air wound coil question In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Would the inherent capacitance be less with "scrambled" windings than with parallel windings? Jeff WH6U From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 12 22:03:55 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA07545 for ; Fri, 12 Feb 1999 22:03:54 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA16573 for ; Fri, 12 Feb 1999 21:04:19 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA22138 for glowbugs-outgoing; Fri, 12 Feb 1999 17:49:02 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id RAA22133; Fri, 12 Feb 1999 17:48:47 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 12 Feb 1999 17:48:46 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Jeffrey Herman (WH6U)" cc: "Roger A. McCarty" , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Air wound coil question In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Would the inherent capacitance be less with "scrambled" windings > than with parallel windings? I think that is called "distributed" capacitance, and, although I don't know for sure, thinking about what that actually means, I would think that the difference between the distributed capacitance of parallel windings and scramble windings would be insignficant at HF. Someone else here may know definitively. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 12 23:21:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA07586 for ; Fri, 12 Feb 1999 23:21:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA25506 for ; Fri, 12 Feb 1999 22:22:16 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA22725 for glowbugs-outgoing; Fri, 12 Feb 1999 19:06:48 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA22720 for ; Fri, 12 Feb 1999 19:06:44 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id WAA24684; Fri, 12 Feb 1999 22:06:53 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id WAA11992; Fri, 12 Feb 1999 22:06:49 -0500 (EST) Date: Fri, 12 Feb 1999 22:06:47 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: "Jeffrey Herman (WH6U)" cc: Ken Gordon , "Roger A. McCarty" , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Air wound coil question In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! The distributed capacitance of *scramble-would* coils is generally higher than that of solenoid-wound, single-layer coils. It is also, I suspect, a little higher than that of machine-wound "universal" coils, which are the sort found in the pies of a typical 2.5mH (etc.) RFC. When you do a scramble-winding by hand, the usual reason for it is you need to get more coil in less space than it would fit if solenoid-wound. The winding pattern is kind of random, and tuns pile up on top of each other, usually ending up in a sort of bell-curve distribution if you sliced though 'em at 90 degrees to the direction of winding. More wires close together, more distributed C; single-layer, solenoid-wound, all any wire "sees" and develops capacitance to are its neighbors each side. Scramble-wound, any one wire can "see" quite a few others! (Distributed C is also sometimes called "shunt capacitance," as it more-or-less shows up as C in parallel with the L) However, usually when we are making such a winding, we don't care--we're either after a (relatively) LF signal, or it's an untuned winding. Inductance is a little less predictable, as the actual distribution of turns will vary with each example. When distributed capacity *really* matters, you'll find interesting things like basket-weave coils, where adjacent turns weave in and out, averaging a common diameter but never running truely parallel--there are some fine examples of this in 1920s QST projects. However, space-winding (exta distance between successive turns) can buy you almost as much reduction with less complexity, so by the time plug-in "tube base" coil forms became a standard item, the basketweave was just about gone. Shows up again in a 40s/50s simple Novice transmitter, where the method allowed for a really simple way of making tank coils without a coil form of the usual sort and thus lower cost. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 13 16:44:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA08093 for ; Sat, 13 Feb 1999 16:43:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA12738 for ; Sat, 13 Feb 1999 15:44:36 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA07132 for glowbugs-outgoing; Sat, 13 Feb 1999 12:33:31 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc06.worldnet.att.net (mtiwmhc06.worldnet.att.net [204.127.131.41]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA07127 for ; Sat, 13 Feb 1999 12:33:27 -0800 (PST) Received: from LOCALNAME ([12.65.146.132]) by mtiwmhc06.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990213203233.EYIN27983@LOCALNAME>; Sat, 13 Feb 1999 20:32:33 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, From: Sandy W5TVW Subject: GB> Crystals for swap Message-Id: <19990213203233.EYIN27983@LOCALNAME> Date: Sat, 13 Feb 1999 20:32:33 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have two runs of crystals in HC-6/U holders for trade: One batch goes from 13.033 to 13.114 Mhz (14 crystals) Second batch goes from 13.46 to 13.49 Mhz (7 crystals) These are from an International crystals Inc. VHF frequency meter. I'm looking for FT-243 holder crystals in the 3.3-3.55 Mhz range or 4.9-5.0 Mhz range. Or.....will sell the lot for $25 shipped. 73, E. V. Sandy Blaize, W5TVW "Boat Anchors collected, restored, repaired, traded and used!" 417 Ridgewood Drive Metairie, LA., 70001 ********* W A N T E D ! ! W A N T E D ! !********* ****** Transmitter/Receiver RT-46/TRC-10 ****** ********* Hallicrafters SR-75 Transceiver ******** ********* Hallicrafters HT-44 Transmitter ******** From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 20:14:09 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA09072 for ; Sun, 14 Feb 1999 20:14:09 -0500 Received: from piobaire.mines.uidaho.edu (piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA30072 for ; Sun, 14 Feb 1999 19:15:09 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA20765 for glowbugs-outgoing; Sun, 14 Feb 1999 16:05:56 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m25.boston.juno.com (m25.boston.juno.com [205.231.100.187]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA20760 for ; Sun, 14 Feb 1999 16:05:52 -0800 (PST) Received: (from ne1s@juno.com) by m25.boston.juno.com (queuemail) id D3F444EQ; Sun, 14 Feb 1999 19:04:34 EST To: Mark_Dittmar@Maxtor.COM Cc: glowbugs@piobaire.mines.uidaho.edu Date: Sat, 13 Feb 1999 16:35:43 -0500 Subject: Re: GB> Looking for sockets... Message-ID: <19990214.183554.3262.0.NE1S@juno.com> References: X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 0-1,8-14,16-50 From: Larry M Szendrei Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Mark! The round Bliley crystals fit great into a standard 5-pin tube socket (such as fits an 807, 27, 24A, etc, etc.) That's what most OT's used. I have an OT transmitter that does the same. The scrysal goes into pins 2 & 4. And if you jumper pin 2 to pin 3, an FT-243 style cystal could also be plugged in to pins 3 & 4. (Or jumper pins 3 & 4, and plug the FT-243 into pins 2 % 3 - the arrangement of pins is symmetric). There ya go - an easily available universal xtal socket! Good Luck! Sounds like a great project. 73, Larry/NE1S On Mon, 8 Feb 99 11:38:11 CST "Mark Dittmar" writes: > > > Hi- > > I am in the process of collecting parts for the "Low-Cost >Crystal >Transmitter" featured in the March 1936 QST. I have everything except >for >a few sockets. I am looking for three 6-pin tube sockets ( for 2A5 >pentodes ). > > FYI, the transmitter is all 2A5 pentodes, one as xtal osc >and >the other two in parallel for final. Power output about 10 watts. > > Also, although I know it's a long shot, I am looking for >sockets >for the round cased "Bliley" crystals. I recently found some of these > >crystals, types LD-2 and B5. The LD-2 one I have is right on the BA >QRG, >so should work out great. > > By the way, why do these crystals have one pin marked as >"GND" ? > > ANy leads on these items appreciated, > > 73, > > Mark, AB0CW > > > ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 13 21:49:10 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA08385 for ; Sat, 13 Feb 1999 21:49:09 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA23171 for ; Sat, 13 Feb 1999 20:49:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA09712 for glowbugs-outgoing; Sat, 13 Feb 1999 17:38:10 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp2.jps.net (smtp2.jps.net [209.63.224.235]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA09707 for ; Sat, 13 Feb 1999 17:38:07 -0800 (PST) Received: from jps.net (209-239-199-177.oak.jps.net [209.239.199.177]) by smtp2.jps.net (8.8.5/8.8.5) with ESMTP id RAA02305; Sat, 13 Feb 1999 17:37:27 -0800 (PST) Message-ID: <36C628D7.8693349F@jps.net> Date: Sat, 13 Feb 1999 17:37:27 -0800 From: Mike Silva Reply-To: mjsilva@jps.net X-Mailer: Mozilla 4.06 [en] (Win95; U) MIME-Version: 1.0 To: GLOWBUGS , BOATANCHORS Subject: GB> Books FS / FT Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi all, Did another look through the bookshelves and came up with these extras: 1) 1942 ARRL Handbook. Hardback copy, cover has a couple of tears in the spine (not the binding itself) and the usual bumps -- insides are very good (nice and white -- better looking than a 70s Handbook!). $22 shipped. 2) 1940 E&E Radio Handbook (7th ed.). 1/4" tear in top spine, otherwise cover in good shape and insides in very good shape (as usual a bit of yellowing). $20 shipped. 3) 1946 E&E Radio Handbook (10th ed.). Cover a bit ratty, insides very good (usual yellowing). $17 shipped. 4) 1959 E&E Radio Handbook (15th ed.). Cover good except spine has been replaced with brown tape -- binding intact. Insides very good. $12 shipped. 5) 1947 ARRL Handbook. Cover and insides very good (usual post-war-paper yellowing). $22 shipped. 6) 1948 ARRL Handbook. Cover good, some wear. Insides very good (white paper available again!). $22 shipped. 7) 1962 ARRL Handbook. Cover good, some wear. Insides very good except the back 3/8" or so of the book has been wet at the top. No pages sticking together -- mostly just slight wrinkling. $14 shipped. 8) 1939 ARRL Handbook. Cover good, insides very good -except- this one has also gotten wet, and some pages in back ad section are sticking together. No pages before ad section affected. Hard to know what it's worth, but I paid $20 so how about $20 shipped. 9) "The Radio Manual" by Sterling, 1940. 1100 pages of pre-war radio. Cover and insides very good -- some pages slightly cocked (from storage?). $20 shipped. Also open to trades of similar books or tube homebrew goodies. 73, Mike, KK6GM From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 14:33:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA08886 for ; Sun, 14 Feb 1999 14:33:07 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA02437 for ; Sun, 14 Feb 1999 13:34:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA17488 for glowbugs-outgoing; Sun, 14 Feb 1999 10:21:07 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA17478 for ; Sun, 14 Feb 1999 10:21:03 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sun, 14 Feb 1999 10:21:03 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Stuff... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO David Newkirk informed me recently that he was designing a nice little setup, both transmitter and receiver. He will post details soon I hope. >From his description of it, it will be really fun to build and operate. Walt Turansky tells me that the first project when he is finished moving will be the 813 xtal rig. Chip Owens has expressed interest in the same project. Jack, W7QQQ, has recently made one of his HB rigs VXO. I thought it was the 813 rig, but maybe we can talk him into filling us in on it. I think I heard Jack on 3578 last night about 0200, but he didn't stay around for a contact. I also heard W0OG calling AWA, AWA, AWA last night (Saturday). I tried to call him several times but he was listening East. Was there some other AWA event this weekend I don't know about? Also, I have been hearing RTTY on or about 3578 quite late. So, is the digital crowd moving down, or is that DX of some sort? 40 has been pretty hot starting quite early in the evening. I have been hearing some DX and lots of North American stations starting as early as 0000. Has anyone here tried 30? And how do we get in on the 5 mHz activity? Has anyone been listening there? How about 160? Got a post from Andy Eliason (sp?, Andy) who told me that my web pages were messed up. I finally fixed them and discussed some things with him, including the 813 xtal rig. I am sending him the article on that along with some other stuff as soon as I get his SASE. He is now a member of this list. When I fixed the Schematics web pages, it seemed to make them much faster to load, so if any of you would like the schmatics of some of the rigs we talk about here, go to http://www.mines.uidaho.edu/~keng/ and take the schematics link. Of course, there are other, much more interesting, web pages out there now which cover our interests. Bry's web pages are a good place to start, but I don't have the URLs immediately at hand. Perhaps Bry would be so kind as to post those here...again. The "new" vertical antenna here is working wonders for me. As I mentioned last week, I recently worked N1SS in Maine on 80. We had a nice chat. Also worked VE7CZW, Ernie, last night. Signals were weak between us, but reasonably steady. Probably because we were so close. One of the RTTY stations near the frequency peaked to about 30 over S-9 for only a few seconds and immediately faded. Weird. Well, enough of this for now. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 17:52:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA08991 for ; Sun, 14 Feb 1999 17:52:42 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA05136 for ; Sun, 14 Feb 1999 16:53:39 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA19229 for glowbugs-outgoing; Sun, 14 Feb 1999 13:29:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.neta.com (qmailr@trojan.neta.com [206.124.164.10]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id NAA19224 for ; Sun, 14 Feb 1999 13:29:55 -0800 (PST) Received: (qmail 26157 invoked by uid 5724); 14 Feb 1999 21:29:25 -0000 Date: Sun, 14 Feb 1999 14:29:25 -0700 (MST) From: Jack X-Sender: jackmead@trojan To: Ken Gordon cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Stuff... In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi Gang, -- On Sun, 14 Feb 1999, Ken Gordon wrote: > David Newkirk informed me recently that he was designing a nice little > setup, both transmitter and receiver. He will post details soon I hope. > >From his description of it, it will be really fun to build and operate. Ok! My interest is piqued! Let's hear more about it. > Jack, W7QQQ, has recently made one of his HB rigs VXO. I thought it was > the 813 rig, but maybe we can talk him into filling us in on it. I think This rig started out as an E.C.O. of the Hartley type using a 865 tube. It was fun to operate late at night on 80 meters at 20 watts output. A couple weeks ago I tacked in a 80 pF variable cap in series with a crystal. The connection was from the tube grid to ground. Now the rig will go 40 watts output with a clean note as a VXO up to ten kcs (kHz) from the crystal frequency. Fun. I am now waiting for a 4-125A tube to arrive via UPS. We will see how it does in the same circuit. What's neat about the circuit is you can just pull out the crystal and your back to an E.C.O. > Also, I have been hearing RTTY on or about 3578 quite late. So, is the > digital crowd moving down, or is that DX of some sort? > John and Dennis moved to avoid it then I joined in. A little later, the RTTY was back on our new frequ... go figure. 73 de Jack, W7QQQ From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 18:06:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA09002 for ; Sun, 14 Feb 1999 18:06:46 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA28641 for ; Sun, 14 Feb 1999 17:07:48 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA19468 for glowbugs-outgoing; Sun, 14 Feb 1999 13:55:59 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from dfw-ix7.ix.netcom.com (dfw-ix7.ix.netcom.com [206.214.98.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA19463 for ; Sun, 14 Feb 1999 13:55:55 -0800 (PST) Received: (from smap@localhost) by dfw-ix7.ix.netcom.com (8.8.4/8.8.4) id PAA05034 for ; Sun, 14 Feb 1999 15:54:45 -0600 (CST) Received: from tac-wa6-50.ix.netcom.com(206.217.105.114) by dfw-ix7.ix.netcom.com via smap (V1.3) id rma005020; Sun Feb 14 15:54:15 1999 Message-ID: <004001be5864$b74e79e0$1c4efea9@#nyet> From: "Dave Ellison" To: Subject: GB> Got my web page back up... Date: Sun, 14 Feb 1999 13:55:18 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3155.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello all! It's been a long time since I've been on this list - last summer or so. Nice to be back! Due to a change in my life (yeah - THAT), I had to move out of my house and lost all my web stuff for a while - email addresses for everyone, and I had to take my web page down for a while. Anyway, it's back and has lots of ham radio stuff, boatanchor pictures, and other topics as well. I keep adding to it all the time. I hope to start an archive of schematics that can be clicked on to download soon, so check back. My favorite homebrew glowbug rig is pictured there, along with the schematic for anyone wanting to build a 6V6 puffer for fun. I still have mine, although I am not able to get on the air for a while yet. Some of you may recall I pictured it here a while back. It's built into an old audio amplifier chassis that Larry Szendrie (sp?) of this list sold to me. Are you still around Larry? Here's the URL for my rebuilt site: http://www.boatanchors.com 73 all, Dave Ellison WB7AWK University Place, WA From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 18:13:57 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA09009 for ; Sun, 14 Feb 1999 18:13:57 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA08942 for ; Sun, 14 Feb 1999 17:15:00 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA19580 for glowbugs-outgoing; Sun, 14 Feb 1999 14:02:54 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.neta.com (qmailr@trojan.neta.com [206.124.164.10]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA19574 for ; Sun, 14 Feb 1999 14:02:52 -0800 (PST) Received: (qmail 26904 invoked by uid 5724); 14 Feb 1999 22:02:26 -0000 Date: Sun, 14 Feb 1999 15:02:26 -0700 (MST) From: Jack X-Sender: jackmead@trojan To: glowbugs Subject: GB> RE Stuff...Correction to my VXO post. Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi Gang, When I saw my post on the 865 tube VXO, I realized that I should have said...."when you pull out the crystal, your back to a self excited oscillator". The circuit is a E.C.O with, or without the crystal. 73, de Jack W7QQQ -- From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 20:29:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA09083 for ; Sun, 14 Feb 1999 20:29:05 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA00838 for ; Sun, 14 Feb 1999 19:30:07 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA20918 for glowbugs-outgoing; Sun, 14 Feb 1999 16:18:48 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m25.boston.juno.com (m25.boston.juno.com [205.231.100.187]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA20913 for ; Sun, 14 Feb 1999 16:18:45 -0800 (PST) Received: (from ne1s@juno.com) by m25.boston.juno.com (queuemail) id D3F5VJXR; Sun, 14 Feb 1999 19:17:55 EST To: Mark_Dittmar@Maxtor.COM Cc: Mark_Dittmar@Maxtor.COM, glowbugs@piobaire.mines.uidaho.edu Date: Sun, 14 Feb 1999 18:49:11 -0500 Subject: Re: GB> Looking for sockets... Message-ID: <19990214.184913.3262.3.NE1S@juno.com> References: <19990214.183554.3262.0.NE1S@juno.com> X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 0-7,9-67 From: Larry M Szendrei Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Why do my fingers have such a problem typing the word "crystal?" Sheesh... Anyway, good luck and have fun. Larry/NE1S On Sat, 13 Feb 1999 16:35:43 -0500 Larry M Szendrei writes: >Hi, Mark! > >The round Bliley crystals fit great into a standard 5-pin tube socket >(such as fits an 807, 27, 24A, etc, etc.) That's what most OT's used. >I have an OT transmitter that does the same. The scrysal goes into >pins 2 & 4. And if you jumper pin 2 to pin 3, an FT-243 style cystal >could also be plugged in to pins 3 & 4. (Or jumper pins 3 & 4, and >plug the FT-243 into pins 2 % 3 - the arrangement of pins is >symmetric). There ya go - an easily available universal xtal socket! > >Good Luck! Sounds like a great project. > >73, >Larry/NE1S > >On Mon, 8 Feb 99 11:38:11 CST "Mark Dittmar" >writes: >> >> >> Hi- >> >> I am in the process of collecting parts for the "Low-Cost >>Crystal >>Transmitter" featured in the March 1936 QST. I have everything >except >>for >>a few sockets. I am looking for three 6-pin tube sockets ( for 2A5 >>pentodes ). >> >> FYI, the transmitter is all 2A5 pentodes, one as xtal osc >>and >>the other two in parallel for final. Power output about 10 watts. >> >> Also, although I know it's a long shot, I am looking for >>sockets >>for the round cased "Bliley" crystals. I recently found some of >these >> >>crystals, types LD-2 and B5. The LD-2 one I have is right on the BA > >>QRG, >>so should work out great. >> >> By the way, why do these crystals have one pin marked as >>"GND" ? >> >> ANy leads on these items appreciated, >> >> 73, >> >> Mark, AB0CW >> >> >> >___________________________________________________________________ >You don't need to buy Internet access to use free Internet e-mail. Get >completely free e-mail from Juno at http://www.juno.com/getjuno.html >or call Juno at (800) 654-JUNO [654-5866] ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 22:28:20 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA09147 for ; Sun, 14 Feb 1999 22:28:20 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA14413 for ; Sun, 14 Feb 1999 21:29:26 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA21869 for glowbugs-outgoing; Sun, 14 Feb 1999 18:12:50 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from koto.qnet.com (koto.qnet.com [207.155.37.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA21864 for ; Sun, 14 Feb 1999 18:12:47 -0800 (PST) Message-Id: <199902150212.SAA21864@piobaire.mines.uidaho.edu> Received: from [209.221.196.85] (56k-palm-01-22.dial.qnet.com) by koto.qnet.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-54999U700L2S100V35) with SMTP id AAA27972; Sun, 14 Feb 1999 17:47:29 -0800 Subject: Re: GB> Looking for sockets... Date: Sun, 14 Feb 99 17:51:16 -0700 x-sender: jmc@pop3.av.qnet.com x-mailer: Claris Emailer 1.1 From: JMcAulay To: "Larry M Szendrei" cc: "GlowBugs" Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 2/10/19 at 1:23 AM, Larry M Szendrei, wrote: >The round Bliley crystals fit great into a standard 5-pin tube socket >(such as fits an 807, 27, 24A, etc, etc.) That's what most OT's used. I >have an OT transmitter that does the same. The scrysal goes into pins 2 & >4. And if you jumper pin 2 to pin 3, an FT-243 style cystal could also be >plugged in to pins 3 & 4. (Or jumper pins 3 & 4, and plug the FT-243 into >pins 2 % 3 - the arrangement of pins is symmetric). There ya go - an >easily available universal xtal socket! You can take that five-pin socket and jumper pin 1 to pin 2, also pin 3 to pin 4. The round Bliley crystal holders will fit "across," 2 to 4, FT-243s will fit from 2 to 3, and the old BC-610-type holders with banana pins will fit between 1 and 3. That's the best way to do it, unless my memory has failed me (second thing to go, right? I can't remember what's first). 73 John WA6QPL From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 14 22:20:02 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA09140 for ; Sun, 14 Feb 1999 22:20:02 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA15276 for ; Sun, 14 Feb 1999 21:21:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA21752 for glowbugs-outgoing; Sun, 14 Feb 1999 18:05:07 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc05.worldnet.att.net (mtiwmhc05.worldnet.att.net [204.127.131.40]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA21747 for ; Sun, 14 Feb 1999 18:05:04 -0800 (PST) Received: from LOCALNAME ([12.73.250.62]) by mtiwmhc05.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990215015238.DKEG19475@LOCALNAME>; Mon, 15 Feb 1999 01:52:38 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, From: Sandy W5TVW Subject: GB> Re: Funky tubes! Message-Id: <19990215015238.DKEG19475@LOCALNAME> Date: Mon, 15 Feb 1999 01:52:38 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Speaking of 4657's and 8072's......I have a couple of 8072 pullouts and some NOS 4657's to trade to whoever needs them. If you need them, maybe we can get together on something I need. 73, E. V. Sandy Blaize, W5TVW "Boat Anchors collected, restored, repaired, traded and used!" 417 Ridgewood Drive Metairie, LA., 70001 ********* W A N T E D ! ! W A N T E D ! !********* ****** Transmitter/Receiver RT-46/TRC-10 ****** ********* Hallicrafters SR-75 Transceiver ******** ********* Hallicrafters HT-44 Transmitter ******** From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 16 20:16:30 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA00334 for ; Tue, 16 Feb 1999 20:16:30 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA10938 for ; Tue, 16 Feb 1999 19:16:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA16252 for glowbugs-outgoing; Tue, 16 Feb 1999 15:35:06 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from ms1.nwla.com (root@ns.nwla.com [207.22.207.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA16244 for ; Tue, 16 Feb 1999 15:34:59 -0800 (PST) Received: from w5sum.nwla.com (ppp17.nwla.com [207.22.207.31]) by ms1.nwla.com (8.7.5/8.7.3) with SMTP id RAA16108; Tue, 16 Feb 1999 17:32:29 -0600 Message-Id: <199902162332.RAA16108@ms1.nwla.com> From: "Ronnie Hull" To: antennas@qth.net Date: Tue, 16 Feb 1999 17:37:38 +0000 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> Millen Antenna Bridge CC: forsale-swap@qth.net, national@qth.net, glowbugs@piobaire.mines.uidaho.edu Priority: normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO howdy Gang.. I have recently acquired an Antenna Bridge, Model 90672, by James Millen. It came in the original box with three coils but no instructions. Does anyone have a instruction manual for this I can get a copy of? Ronnie W5SUM Ronnie Hull PO Box 8941 - Shreveport, La - 71148 "In the Occupied South" Ten-Ten #2019 AMI # 1057 From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 16 20:13:27 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA00328 for ; Tue, 16 Feb 1999 20:13:26 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA12403 for ; Tue, 16 Feb 1999 19:13:04 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA16261 for glowbugs-outgoing; Tue, 16 Feb 1999 15:35:37 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from ms1.nwla.com (root@ns.nwla.com [207.22.207.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA16255 for ; Tue, 16 Feb 1999 15:35:32 -0800 (PST) Received: from w5sum.nwla.com (ppp17.nwla.com [207.22.207.31]) by ms1.nwla.com (8.7.5/8.7.3) with SMTP id RAA16120; Tue, 16 Feb 1999 17:34:45 -0600 Message-Id: <199902162334.RAA16120@ms1.nwla.com> From: "Ronnie Hull" To: johnson@qth.net Date: Tue, 16 Feb 1999 17:39:55 +0000 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> 250-28 CC: forsale-swap@qth.net, baswaplist@foothill.net, glowbugs@piobaire.mines.uidaho.edu Priority: normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Gentleman I have sold a little Johnson Crystal Calibrator, model 250-28 to a list member. I have misplaced the little instruction sheet copy that I had. Does anyone have an instruction sheet for this that I can get a copy of? I hate to hold this member up much longer than I already have. thanks in advance Ronnie W5SUM Ronnie Hull PO Box 8941 - Shreveport, La - 71148 "In the Occupied South" Ten-Ten #2019 AMI # 1057 From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 16 20:35:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA00351 for ; Tue, 16 Feb 1999 20:35:07 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA08700 for ; Tue, 16 Feb 1999 19:34:43 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA16554 for glowbugs-outgoing; Tue, 16 Feb 1999 15:55:24 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from snipe.prod.itd.earthlink.net (snipe.prod.itd.earthlink.net [207.217.120.62]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA16547 for ; Tue, 16 Feb 1999 15:55:19 -0800 (PST) Received: from default (pool014-max3.ds13-ca-us.dialup.earthlink.net [209.178.16.14]) by snipe.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id PAA22005; Tue, 16 Feb 1999 15:54:39 -0800 (PST) Message-Id: <3.0.5.32.19990216155200.01b0b190@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Tue, 16 Feb 1999 15:52:00 -0800 To: From: Jim Hill Subject: GB> 211/VT-4C and 10/10Y Tube Data Cc: boatanchors@theporch.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Came across an interesting website that has RCA data on the 10 (actually the old 210), 10Y, 211, VT-4C, the VT-45, which is a militarized 45, I guess. The 10Y info provides class C data, which I assume would apply to the 10 with a little derating. http://www.vt52.com/ Maybe someone can help me. Someone has a web page selling new and used tubes, and their pricing is a partially a function of tube tester reading, the higher reading tubes costing more money. My battery tube SW-3 won't regenerate on 10 meters, and maybe a hot '32 would to the trick. Anyone have any VT-25A spec's? It appears to be a militarized 10 with a larger plate and oxide filament. 73's Jim From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 17 03:39:57 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA00643 for ; Wed, 17 Feb 1999 03:39:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA00261 for ; Wed, 17 Feb 1999 02:39:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA21620 for glowbugs-outgoing; Tue, 16 Feb 1999 23:20:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.hits.net (earthcenter.com [206.127.244.135]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA21614 for ; Tue, 16 Feb 1999 23:20:54 -0800 (PST) Received: from 206.127.244.80 (excalibur14.hits.net [206.127.244.80]) by mail.hits.net (8.9.1a/8.8.5) with SMTP id VAA12707; Tue, 16 Feb 1999 21:19:52 -1000 (HST) Message-ID: <36CA5CB2.1D67@hits.net> Date: Tue, 16 Feb 1999 20:07:46 -1000 From: Peter Demmer Reply-To: ampruss@hits.net Organization: AMPRUSS Co. X-Mailer: Mozilla 3.01 (Macintosh; I; 68K) MIME-Version: 1.0 To: "Jeffrey Herman (WH6U)" CC: Ken Gordon , "Roger A. McCarty" , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Air wound coil question References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Jeffrey Herman (WH6U) wrote: > > Would the inherent capacitance be less with "scrambled" windings > than with parallel windings? > > Jeff WH6U Peter wrote; "Scrambled" wire turns, randomly wound or placed over a specific length on any coil form will result in a very pronounced reduction in the inter turn to turn capacitance of any such coil. This inherent reduction in capacitance will increase the over all inductance without lowering the self resonance of the subject coil. As an aside, an interesting little hand crafted bench top machine (coil winder) is well defined in a small book by Dave Gingerly (available from Lindsay Publications) that can be set up to scramble wind as well as single and/or multi-layer coils at will. From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 17 11:13:51 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA00879 for ; Wed, 17 Feb 1999 11:13:51 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA30833 for ; Wed, 17 Feb 1999 10:13:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA25231 for glowbugs-outgoing; Wed, 17 Feb 1999 06:54:31 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc06.worldnet.att.net (mtiwmhc06.worldnet.att.net [204.127.131.41]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA25226 for ; Wed, 17 Feb 1999 06:54:27 -0800 (PST) Received: from LOCALNAME ([12.73.238.183]) by mtiwmhc06.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990217145345.JZVR28055@LOCALNAME>; Wed, 17 Feb 1999 14:53:45 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, From: Sandy W5TVW Subject: GB> WTB: "RAL-7" receiver manual Message-Id: <19990217145345.JZVR28055@LOCALNAME> Date: Wed, 17 Feb 1999 14:53:45 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Anyone out there have or know where a manual for the RAL-7 or RAK-7/RAL-7 (combined) can be found? I'm looking for an original manual, not a photocopy. 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 18 01:45:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA01507 for ; Thu, 18 Feb 1999 01:45:23 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA01404 for ; Thu, 18 Feb 1999 00:45:22 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA04029 for glowbugs-outgoing; Wed, 17 Feb 1999 21:24:45 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f113.hotmail.com [207.82.251.43]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA04024 for ; Wed, 17 Feb 1999 21:24:42 -0800 (PST) Received: (qmail 2227 invoked by uid 0); 18 Feb 1999 05:23:31 -0000 Message-ID: <19990218052331.2226.qmail@hotmail.com> Received: from 192.193.195.25 by www.hotmail.com with HTTP; Wed, 17 Feb 1999 21:23:30 PST X-Originating-IP: [192.193.195.25] From: "Firson YD5BIH" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> RS1007 Date: Wed, 17 Feb 1999 21:23:30 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Dear Glowbugs-er Two years ago I have buy an HF Linear Amplifier using pairs of RS1007 (Siemens), I am afraid when the tubes lost his emission, because no parts are available in my town, I just ask for the tubes equivalent like 4-125A or QB 3/300, the shopkeeper told me, no such this tube are available, are there anybody can help me where I can buy this tube ?, how much the price, and how to order it ... Thanks for your kind attention Firson YD5BIH Jakarta - Indonesia. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 18 14:53:22 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA01979 for ; Thu, 18 Feb 1999 14:53:22 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA21733 for ; Thu, 18 Feb 1999 13:53:13 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA10809 for glowbugs-outgoing; Thu, 18 Feb 1999 10:13:44 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA10804 for ; Thu, 18 Feb 1999 10:13:41 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Thu, 18 Feb 1999 10:13:41 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> FS... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO A good friend, Tom Toenjes of St. Mary's, Kansas, who does not have Internet access, has asked me to post some equipment for sale in case there is any interest here or you might know someone who would be interested. Please call HIM, not me! --------------------------------------------------------------------------- The following Broadcast transmitters: Transmitter AM Gates BC-250-GY 250 Watt 1960 $800.00 Transmitter AM Collins 300-G 250 Watt 1958 $800.00 Transmitter AM Collins 820-D2 1 kW 1978 $3500.00 Transmitter AM Gates BC-1T 1 kW 1962 $2500.00 Transmitter AM RCA BTA-5U 5 kW 1968 $3000.00 Transmitter AM Gates BC-5P2 5 kW 1960 $1000.00 Transmitter AM Harris BC-10H 10 kW 1981 $9000.00 Transmitter FM RCA BTF-5B 5 kW No exciter $2500.00 Transmitter FM Collins 831D-2 2.5 kW 310-Z $6000.00 Transmitter FM RCA 21E-1 20 kW No exciter $12000.00 Call Tom at 785-437-6549. Will negotiate. -------------------------------------------------------------------------- Personally, although there are REAL BA/GLOWBUG transmitters, I can't imagine anyone needing anything with power output above 1 kW for use in the ham bands, but maybe someone wants to start a radio station. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 18 23:05:27 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA02303 for ; Thu, 18 Feb 1999 23:05:27 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA21070 for ; Thu, 18 Feb 1999 22:05:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA01471 for glowbugs-outgoing; Thu, 18 Feb 1999 18:39:01 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA01466 for ; Thu, 18 Feb 1999 18:38:56 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id VAA07391 for ; Thu, 18 Feb 1999 21:39:36 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id VAA10833 for ; Thu, 18 Feb 1999 21:39:33 -0500 (EST) Date: Thu, 18 Feb 1999 21:39:31 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Neat HB receiver Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! Just picked up some more QSTs, and in one of 'em (June, 1931 to be exact), Ross Hull has just about the neatest little 1-V-1 regen I've yet seen! Under the title of "Putting the Pentode to Work," (the set runs a '33 pentode AF amp, which Ross says will about run you out from under the headphones), he describes in very full detail a two-dialer "...about the size and weight of a camera and as readily transportable." It is, too: just 5" x 7" x 6-3/8" less batteries, it has no unobtanium except for the British vernier dials, and those were just as unavailable in the US when the set was first described (National BM, A or AM, or the 3" version of the JA vernier would do). Depending on the state of one's junk box, some ingenuity might be required for tube sockets, but any of the modern types could be made to work. And you'd want to make up some handles for the coil forms, but there are at least five ways to to do that. Construction is unique and clever but not difficult and shielding looks to be very good. Tube line-up is '32-'32-'33. Both bandspread and general covergae coil data is given. I'm already "projected" up to the eyelashes. But if somebody's looking for an interesting one, this is it! 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 19 02:50:52 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA02480 for ; Fri, 19 Feb 1999 02:50:44 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA28560 for ; Fri, 19 Feb 1999 01:50:54 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA03393 for glowbugs-outgoing; Thu, 18 Feb 1999 22:30:03 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from peach.iaxs.net (root@peach.iaxs.net [209.134.128.1]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA03382 for ; Thu, 18 Feb 1999 22:29:57 -0800 (PST) Received: from citrus.iaxs.net (bill@citrus.iaxs.net [209.134.136.217]) by peach.iaxs.net (8.9.1/8.9.1) with ESMTP id AAA23409; Fri, 19 Feb 1999 00:29:40 -0600 (CST) Received: (from bill@localhost) by citrus.iaxs.net (8.9.1/8.9.1) id AAA22752; Fri, 19 Feb 1999 00:29:37 -0600 (CST) Date: Fri, 19 Feb 1999 00:29:37 -0600 (CST) From: Bill Hawkins Message-Id: <199902190629.AAA22752@citrus.iaxs.net> To: boatanchors@theporch.com Subject: GB> Pretty good book Cc: glowbugs@piobaire.mines.uidaho.edu Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The Victorian Internet, by Tom Standage, is a history of telegraphy with emphasis on the effect of the first long distance communication system on society, and the way human nature interacted with technology then and now. Got my copy from Barnes and Noble, ISBN 0-8027-1342-4 Library number 384.1'09-dc21, or something like that. Regards, Bill Hawkins From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 19 11:10:48 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA02734 for ; Fri, 19 Feb 1999 11:10:48 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA18887 for ; Fri, 19 Feb 1999 10:11:10 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA07724 for glowbugs-outgoing; Fri, 19 Feb 1999 07:00:07 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from x16.boston.juno.com (x16.boston.juno.com [205.231.101.28]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA07719 for ; Fri, 19 Feb 1999 07:00:03 -0800 (PST) Received: (from aleisen@juno.com) by x16.boston.juno.com (queuemail) id D3TZUXMA; Fri, 19 Feb 1999 09:58:34 EST To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> For Sale Message-ID: <19990219.093517.7759.2.aleisen@juno.com> X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 1-11,13-18,20-21,23,25,27,29,31 From: ALLAN V EISENHAUR Date: Fri, 19 Feb 1999 09:58:34 EST Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have the following items For Sale or Trade, shipping extra. I will trade for American Flyer S gauge Trains. Thanks AL N1PIC GE solid state thyratrons 4JS1 (3) & 4JS5 (2) make offer ARRL Radio Amateur’s Hand Book 1973 $12 ARRL The Radio Operators Manual 1966 $5 ARRL SSB for the Radio Amateur 1954 $12 ARRL SSB for the Radio Amateur 1965 $12 Cowan Publ The New Mobile Handbook By William J Orr W6SAI 1956 $15 QST’s Jan-Dec 1934 in QST Binder 1934 June 1944,Oct 1945, Feb-Dec 1946 in QST Binder 1946 Oct 1936, Dec 1939, May 1939, June 1940 Radio Feb 1941 $40 or B.O. for the lot QST,s Weston #201 2 1/2” panel meter 0-1KVDC 1m ext res. Weston #506 2 1/2” panel meter 0-1KVDC 1m ext res. Weston #201 2 1/2” panel meter 0-2. 5KVDC 50K ext res. Weston #506 2 1/2” panel meter 0-2. 5KVDC 50k ext res. GE SC IS-122 2 1/2” panel meter 0-15 V ac/dc Model 8AW-41 F/BC 375 ? Meters $15 ea ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 19 16:47:17 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA02906 for ; Fri, 19 Feb 1999 16:47:17 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA30288 for ; Fri, 19 Feb 1999 15:47:42 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA11003 for glowbugs-outgoing; Fri, 19 Feb 1999 12:11:49 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f248.hotmail.com [207.82.251.139]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA10998 for ; Fri, 19 Feb 1999 12:11:45 -0800 (PST) Received: (qmail 26078 invoked by uid 0); 19 Feb 1999 20:10:47 -0000 Message-ID: <19990219201047.26077.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Fri, 19 Feb 1999 12:10:47 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> National SW-3 Date: Fri, 19 Feb 1999 12:10:47 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO For several months I have not received any GLOWBUGS messages and thought that the group was inactive. I resubscribed yesterday and find that it is still active! This is great but now I am bumming about all that I missed. I wish that the archive was still active. Anyway, getting to the subject as advertised..... I am wondering whether someone in possession of a National SW-3 or the coils thereof could describe the details of the coils that they have. I am wanting to build a receiver using a 1L4 - 1L4 - 3A4 lineup (RF-regen-AF) and have done preliminary experiments. The SW-3 schematic looks like what I have in mind but I was originally thinking about using capacitive coupling from the RF stage to the regen stage. The SW-3 has the RF plate winding on the same form as the regen tank and feedback windings. What I would like to know are the dimensions, locations and number of turns of all these windings to get an idea how to build something like this without having to make a lot of test coils for trial and error. Thanks for any help. Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 21 11:30:01 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA04508 for ; Sun, 21 Feb 1999 11:30:01 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA03675 for ; Sun, 21 Feb 1999 10:31:00 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA04034 for glowbugs-outgoing; Sun, 21 Feb 1999 07:16:39 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from cwcom.net (email.mcmail.com [195.44.0.104]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA04029 for ; Sun, 21 Feb 1999 07:16:32 -0800 (PST) Received: from eco1 ([195.44.21.162]) by cwcom.net with Microsoft SMTPSVC(5.5.1877.117.11); Sun, 21 Feb 1999 15:16:04 +0000 From: "Colin Shaw" Organization: MidNet To: glowbugs@piobaire.mines.uidaho.edu Date: Sun, 21 Feb 1999 15:17:30 -0000 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> Mighty Midget TX Reply-to: crshaw@mcmail.no-spam.com Priority: normal X-mailer: Pegasus Mail for Win32 (v3.01b) Message-ID: <0ed270416151529WINTERMUTE@cwcom.net> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I am building both the mighty midget TX and RX. The TX uses a 6GW8 but we cannot find an equivalent in the UK. Does anybody know and equivalent or alternative or a supplier of the 6GW8? Colin, G8FRA -------------------------------------------------- See http://www.organic.mcmail.com/ THE UK organic gardening web site. From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 21 17:10:28 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA04677 for ; Sun, 21 Feb 1999 17:10:18 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA18885 for ; Sun, 21 Feb 1999 16:11:21 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA06920 for glowbugs-outgoing; Sun, 21 Feb 1999 12:48:34 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mm1001.theporch.com (mm1001.theporch.com [207.152.11.136]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA06915 for ; Sun, 21 Feb 1999 12:48:30 -0800 (PST) Received: from localhost (hamradio@localhost) by mm1001.theporch.com (8.9.0/8.9.0) with SMTP id PAA00588; Sun, 21 Feb 1999 15:41:32 -0600 Date: Sun, 21 Feb 1999 15:41:32 -0600 (CST) From: Kevin Pease To: Colin Shaw cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Mighty Midget TX In-Reply-To: <0ed270416151529WINTERMUTE@cwcom.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Sun, 21 Feb 1999, Colin Shaw wrote: > I am building both the mighty midget TX and RX. The TX uses a > 6GW8 but we cannot find an equivalent in the UK. Does anybody > know and equivalent or alternative or a supplier of the 6GW8? > > Colin, G8FRA > I am not sure if the base hookup is the same but I used a 6BM8 in leau of the 6GW8 in the mighty midget and it worked quite well. The 6BM8 has an ECL number so I know you can get it in the UK. Kevin Pease WB0JZG Mount Juliet, TN. From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 21 18:27:48 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA04720 for ; Sun, 21 Feb 1999 18:27:48 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA22549 for ; Sun, 21 Feb 1999 17:28:47 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA07722 for glowbugs-outgoing; Sun, 21 Feb 1999 14:07:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from camel14.mindspring.com (camel14.mindspring.com [207.69.200.64]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA07716 for ; Sun, 21 Feb 1999 14:07:53 -0800 (PST) Received: from default (user-38ldajl.dialup.mindspring.com [209.86.170.117]) by camel14.mindspring.com (8.8.5/8.8.5) with SMTP id RAA27782 for ; Sun, 21 Feb 1999 17:07:21 -0500 (EST) Message-Id: <3.0.3.32.19990221170337.0073b594@mindspring.com> X-Sender: johnmb@mindspring.com X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.3 (32) Date: Sun, 21 Feb 1999 17:03:37 -0500 To: glowbugs@piobaire.mines.uidaho.edu From: john Subject: GB> Whazzit? Lettine VFO (Link to pictures) Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello Lists I've recently put together a "Lettine Twins" station , namely the 240 HF rig and its VHF cousin... and thanks to a friend on this list now have the advertized VFO for the HF rig. My question is..exactly what IS this, other than an external oscillator? I'm a bit puzzled... if anyone has any information rumors or hearsay about this, please let me know. I snapped some pics this afternoon, and they're at: http://www.mindspring.com/~johnmb/lettine.htm All hints to the answer to this mystery greatly appreciated! Best /John From glowbugs-owner@piobaire.mines.uidaho.edu Mon Feb 22 13:53:55 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA05494 for ; Mon, 22 Feb 1999 13:53:55 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA24048 for ; Mon, 22 Feb 1999 12:55:12 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA17278 for glowbugs-outgoing; Mon, 22 Feb 1999 09:23:06 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f240.hotmail.com [207.82.251.131]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA17272 for ; Mon, 22 Feb 1999 09:23:01 -0800 (PST) Received: (qmail 12773 invoked by uid 0); 22 Feb 1999 17:22:10 -0000 Message-ID: <19990222172210.12772.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Mon, 22 Feb 1999 09:22:10 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Headphones Date: Mon, 22 Feb 1999 09:22:10 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO A few days ago I was checking out some of the phones I have using an audio oscillator and oscilloscope. I've got a nice headset (mil surplus) with HS-33 ID and cans marked Receiver ANB-H-1, Made By Shure Brothers, Chicago USA. I used to think that these were high impedance but my measurments showed 103 ohms DC resistance and about 1K impedance at 990 Hz. I like these because they are comfortable and have rubber covers on the cans. I've also got a pair of cans marked Monarch Tel. MFG. Co., Fort Dodge IA. Unfortunately, I don't have a band for these. They measure 1.24 kohm DC resistance and about 18K impedance at 990 Hz. Questions: Anyone know any more about these units and whether my measurements sound correct? Where the HS-33's typically used with a transformer? Thanks. Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Feb 22 17:05:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA05613 for ; Mon, 22 Feb 1999 17:05:14 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA10047 for ; Mon, 22 Feb 1999 16:06:32 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA19323 for glowbugs-outgoing; Mon, 22 Feb 1999 12:23:54 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from usagi.cts.com (usagi.cts.com [209.68.192.66]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA19318 for ; Mon, 22 Feb 1999 12:23:46 -0800 (PST) Received: from king.cts.com (root@king.cts.com [198.68.168.21]) by usagi.cts.com (8.9.3/8.9.3) with ESMTP id MAA28139; Mon, 22 Feb 1999 12:23:17 -0800 (PST) Received: from sd.cts.com (root@sd.cts.com [192.188.72.28]) by king.cts.com (8.8.7/8.8.7) with SMTP id MAA28827; Mon, 22 Feb 1999 12:23:08 -0800 (PST) Received: by sd.cts.com (Smail3.1.29.1 #5) id m10F1sd-0000XFC; Mon, 22 Feb 99 12:23 PST Date: Mon, 22 Feb 1999 12:23:03 -0800 (PST) From: John Kolb To: Brad Hernlem cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Headphones In-Reply-To: <19990222172210.12772.qmail@hotmail.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Mon, 22 Feb 1999, Brad Hernlem wrote: > A few days ago I was checking out some of the phones I have using an > audio oscillator and oscilloscope. I've got a nice headset (mil surplus) > with HS-33 ID and cans marked Receiver ANB-H-1, Made By Shure Brothers, > Chicago USA. I used to think that these were high impedance but my > measurments showed 103 ohms DC resistance and about 1K impedance at 990 > Hz. I like these because they are comfortable and have rubber covers on > As I recall from the surplus ads from the '50's, the ANB-H-1 were 300 ohms impedance nominal, 600 ohms for the complete headset, since the two ANB elements were in series for a complete HS-33 headset. I remember 2 Kohms for the HS-23 headset, using R-14 elements, but don't remember if 2K is for the complete HS-23, or for the R-14, which would make HS-23 4Kohms. John KK6IL From glowbugs-owner@piobaire.mines.uidaho.edu Mon Feb 22 17:28:16 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA05632 for ; Mon, 22 Feb 1999 17:28:11 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA02143 for ; Mon, 22 Feb 1999 16:29:20 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA19617 for glowbugs-outgoing; Mon, 22 Feb 1999 12:46:15 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA19611 for ; Mon, 22 Feb 1999 12:46:03 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D34CTWKW; Mon, 22 Feb 1999 15:44:10 EST To: boatanchors@theporch.com, glowbugs@piobaire.mines.uidaho.edu Date: Mon, 22 Feb 1999 14:43:01 -0600 Subject: GB> FMLA: The old ones Message-ID: <19990222.144323.-511659.0.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Line-Breaks: 0-3,5-8,14-15,24-25,33-34,37-40,42-43,50-51,61-62,72-73,79-80,85-86,91-96,98-99 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO (for AA5ZD, who reads QST poetically) "Their ardor for abomination has catalyzed their crestfallen countenances!" Frank shouted that as he threw a magazine on the bench in front of me. But when I looked down I saw my maternal grandmother's high button black shoes, primly placed together, and the lines of folding chairs. The place smelled different. There was her faint Lilac but, since the tent sides were up, I could also smell the night air, the perspiration and the inspiration. The preacher must have said something right, because my grandmother muttered "Amen," just as I caught the 45-year flight back. My pal Frank, who wants to take back 56-60 mc with a Five Meter Liberation Army, had thrown a copy of QST for March, 1999. He is not usually like this, I thought, not normal, but not like this. I thought Frank a casual Catholic, but today he sounded like a barn burning Baptist. Grandmother was a Baptist but she died in '64 at 84 ("Ready to go when He calls me."). Now I am 50 something years old and in my basement. I don't notice the night air anymore, I guess. I don't go to revivals anymore, either, although I am sure the invitation is still open ("He is always waiting - It is never too late."). The magazine explained it all. There was an article on collectors of Collins equipment. Frank is all home brew and, as he mentioned again while I looked at the article, thinks "appliance idolatry" ruined ham radio. I was able to finish the article only because his bodyguards, a thin woman named Christie and a thinner youth I call the WARmon, came in just then. They were worried about the shouting in our workshop and abandoned the Toyota Land Cruiser where they were taking lunch. It was fried chicken and they did not want to be seen eating "ethnic food." The bodyguards are from a social club called WAR and Frank does their radio work for them. They know little about radio and I rescued them from Frank's elaborations: "They do look a dab dour," I interjected. "Dour!" he reacted. "They bear the mark of Cain!" "I have to show this to A.C." "Maybe then he'll give up his Jap Crap." None of us had ever heard Frank make even a jocular derisive comment. Christie smiled knowingly and the twitch in the bald kid's right arm reminded me of Dr. Strangelove. Frank rolled up the magazine and was off up the stairs, like a field marshal with his baton, to dissuade his friend of a Kenwood TS-820, the first model with the single IF. His cover followed him with a grim resolve, knowing that A.C. is, to use Frank's term, "a Negro." Frank left his soldering iron on and I did not want to pay to for all 200W while he was gone, so I turned it off and studied the latest project. It was confusing, really. The local oscillator is a clock chip from a computer but it drives a single ended Class C Octal which in turn drives two serial, push-push twin triode doublers to a push-pull PA made of some tubes I did not recognize. They just say "Taylor" on them and he had discarded the base of one already. He removes the bases and puts them in holes in a wood panel to cut down on inter electrode capacity. The second tube was in a jig for removal of its base and the holes were already cut. This must be a presentation model, I guessed, because he had not used his usual shielding between the tubes. He often picks up a bean can from our trash, cuts it, and hammers it flat. If the rig is a mobile he uses a beer can from the street for the aluminum, but this was some alloy and had clean cut edges. Later he would operate on another computer carcass for the power supply. Frank uses the 5V for the chip and wires the tubes for the 12. He then pulls some trick with the switching supply and coaxes it up to around 400 volts. For his own work Frank just multiplies off the line, but for things going to the field he uses the PC/AT class boxes. He modulates the oscillator, of course. I turned the iron back on and, while waiting for it to make rays of heat reminiscent of Sunday rides in Grandmother's '39 Olds, I went for another scrap of wood to hold the swinging link. Frank avoids coax. If I got the other base off, maybe he would show me again how he measures the inter electrode capacity with a dip meter and cancels it with a run of shorted twin lead. I found part of a weathered broomstick in one of the black boxes in the back, and that gave me a hunch. Back at the bench I removed the carpet tacks and, sure enough, the interstage shield read "Radio Receiver, Model R-390." The center part, about Collins Radio, had been taken by his brace and bit. Well, I thought, at least he practices what he preaches. (So did Mrs.Wilbanks, as my dad called her. He died in '64 too.) Frank says that he knows, in his heart (Grandmother talked that way, too), that there are many among us who will someday awaken and see the error of our ways. Then, he says, we will be back on the right path. I hope he's right, and I hope Grandmother was too. de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com FMLA XXIV Student of Tecraft, ICM, and Six Meters' golden age, 1956-58. From glowbugs-owner@piobaire.mines.uidaho.edu Mon Feb 22 22:01:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA05815 for ; Mon, 22 Feb 1999 22:01:12 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA07817 for ; Mon, 22 Feb 1999 21:02:33 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA22661 for glowbugs-outgoing; Mon, 22 Feb 1999 17:29:07 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc06.worldnet.att.net (mtiwmhc06.worldnet.att.net [204.127.131.41]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA22656 for ; Mon, 22 Feb 1999 17:28:56 -0800 (PST) Received: from LOCALNAME ([12.73.239.165]) by mtiwmhc06.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990223012750.EQWG3839@LOCALNAME>; Tue, 23 Feb 1999 01:27:50 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, From: Sandy W5TVW Subject: GB> Regenerative receivers... Message-Id: <19990223012750.EQWG3839@LOCALNAME> Date: Tue, 23 Feb 1999 01:27:50 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Some musings about the wonderful regenerative receiver which can be possibly the most cantankerous "simple" circuit in the radio art! Quite a few of the "old books" emphasize the use of ceramic/isolantite/ porcelin/steatite etc. tube and coil sockets for best performance. Being something of a "hard head" or "mule head" about some things (maybe it's because of my partial German heritage!), I have sometimes ignored this warning.......to my detriment! I have steered clear of the cheap phenolic "wafer" sockets simply because they are cheap looking and flimsy. I have used the Amphenol black bakelite sockets however. My advice is: *don't*! I have also used the light brown moulded "mica filled bakelite" sockets as well. These have, for the most part, "worked out", but from now on, I intend to heed the advice of the old, old timers and use nothing but a ceramic type socket for both the plug-in detector coils and the detector tube. I have had some very remarkable results from "one tubers" using ceramic sockets, only to have failure, or at least partial failure, using something inferior to ceramic in the SAME CIRCUITS THAT WORKED SO WELL before! I would, therefore, advise every regen receiver affectionado homebrewer to use only ceramic sockets for detector tube and coil sockets. The old guys might not have been insulation experts, but they knew what they were about here, and my "empirical engineering" has proved it to be true. You have your hands full building a regenny. No use complicating matters with unsuitable parts! The same goes for coil forms as well.....something mica filled bakelite or better preferably. Have fun building! 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 02:13:17 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA05992 for ; Tue, 23 Feb 1999 02:13:15 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA25622 for ; Tue, 23 Feb 1999 01:14:35 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA25337 for glowbugs-outgoing; Mon, 22 Feb 1999 22:00:01 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from enterprise.powerup.com.au (qmailr@enterprise.powerup.com.au [203.32.8.37]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA25323 for ; Mon, 22 Feb 1999 21:59:56 -0800 (PST) Received: (qmail 2426 invoked from network); 23 Feb 1999 05:59:08 -0000 Received: from ts51113.powerup.com.au (HELO mkelly) (202.139.237.113) by enterprise.powerup.com.au with SMTP; 23 Feb 1999 05:59:08 -0000 Message-ID: <36D243A1.752F@powerup.com.au> Date: Tue, 23 Feb 1999 15:58:57 +1000 From: Murray Kelly Reply-To: mkelly@powerup.com.au X-Mailer: Mozilla 3.0 (Win95; I) MIME-Version: 1.0 To: crshaw@mcmail.no-spam.com CC: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Mighty Midget TX References: <0ed270416151529WINTERMUTE@cwcom.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The 6 Gee whiz 8 is the ECL86 in Europe. Colin Shaw wrote: > > I am building both the mighty midget TX and RX. The TX uses a > 6GW8 but we cannot find an equivalent in the UK. Does anybody > know and equivalent or alternative or a supplier of the 6GW8? > > Colin, G8FRA -- ****************************************************************** * Murray Kelly vk4aok mkelly@powerup.com.au * * 29 Molonga Ter. / Graceville/ QLD. 4075/ Australia * * ph/fax Intl+ 61 7 3379 3307 * ****************************************************************** From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 06:00:41 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id GAA06137 for ; Tue, 23 Feb 1999 06:00:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id FAA13645 for ; Tue, 23 Feb 1999 05:02:07 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id BAA28204 for glowbugs-outgoing; Tue, 23 Feb 1999 01:44:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp3.erols.com (smtp3.erols.com [207.172.3.236]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id BAA28199 for ; Tue, 23 Feb 1999 01:44:52 -0800 (PST) Received: from LOCALNAME (207-172-52-173.s173.tnt1.brd.erols.com [207.172.52.173]) by smtp3.erols.com (8.8.8/8.8.5) with SMTP id EAA05469; Tue, 23 Feb 1999 04:43:56 -0500 (EST) Message-Id: <199902230943.EAA05469@smtp3.erols.com> X-Sender: wmeara@pop.erols.com X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Tue, 23 Feb 1999 09:37:47 -0400 To: Sandy W5TVW , glowbugs@piobaire.mines.uidaho.edu From: Bill Meara Subject: Re: GB> Regenerative receivers... Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Sandy: I keep swearing that I will never again try to build one of those finicky regens. There seems to be too much black magic involved. But on Sunday I was at an estate sale, and there, amidst a lot of junk on an old work bench, was a National Velvet Vernier "Dial Type 3." It is now sitting here, taunting me: "Build a regen! If you were a real ham, you'd build a regen!" 73 de N2CQR Bill Meara, Falls Church, Virginia wmeara@erols.com G-QRP #7965 http://www.erols.com/wmeara From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 10:44:40 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA06272 for ; Tue, 23 Feb 1999 10:44:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA32360 for ; Tue, 23 Feb 1999 09:46:12 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA00647 for glowbugs-outgoing; Tue, 23 Feb 1999 06:35:05 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA00631 for ; Tue, 23 Feb 1999 06:34:58 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id JAA27599; Tue, 23 Feb 1999 09:35:38 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id JAA12008; Tue, 23 Feb 1999 09:35:35 -0500 (EST) Date: Tue, 23 Feb 1999 09:35:34 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 Reply-To: "Roberta J. Barmore" To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> Headphone rewiring, etc. Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! Sandy's been spreading the Good Word about regen sets (and no bunk, though I will add that good ol' polystyrene is a low-loss RF insulator, when you can find the actual stuff and not some fake version). So--say you've got a first-rate regen set; how are your headphones? I've been having Headphone Hospital recently, starting with a set of the seemingly ubiquitous Brandes ("Superior Matched Tone!) cans that showed up a local old-radio meet [1]. Rule 1: Never set headphones down directly on your workench! Brush off the iron filings (etc.) and lay down a sheet of paper to work on. Headphone magnets are pretty powerful and bits of steel stuck to the poles do 'em no good. Brandes liked aluminium backs, which clean up well with Flitz polish; cap threads on mine had some aluminium "white grunge" in 'em, but after external cleaning I was able to (carefully!) unscrew the Bakelite caps, set the diapraghms aside (on the paper, on a flat, smooth surface--don't bend 'em!), and use a small scribe to clean out the threads. A small strip of masking tape lifted off the usual metal chips that were already stuck on the pole pieces. Be careful, the windings are close by and it is *tiny* wire. In extreme cases, duct tape can be used but watch out, it's seriously sticky. A weak point of the Brandes and many similar cans with terminals on the outside is the point where the windinings connect to the threaded terminal stud inside. There usually no slack in the wire--if someone has managed to spin the stud, it breaks. Lucked out this time, mine were okay. Cleaned and polished up the caps--household ammonia followed by Flitz--and very carefully cleaned the diaphragms; leave them laying flat and work gently with dilute ammonia. Let each side dry before turning over. Sometimes it helps to turn them over on reinstallation, as they can take a "set" from the permanent magnets. Keep them clean! The headband on my set has canvas sewn over steel wires; canvas is brittle but not bad. (This can be replaced--old blue-jean denim is just about perfect--but it's a lot of slow hand-sewing). A clamping nut was missing from one side (the old ones didn't have a sliding fit between the "yoke" that holds the earpiece and the band, but a collet and clamp nut instead). Turned out to be 1/4-32, a NEF (National Extra Fine) thread. (But there can be surprises here--a friend's Brandes cans have 1/4-39 clamp nuts!) This was "fixed" by the simple expedient of having a good machinist among my local ham friends [2]; but note that McMaster-Carr carries taps in most every standard thread there ever was (though 39-pitch isn't one of 'em) and a workable replacment could have been made from a little chunk of brass drilled and tapped to fit. Start with round stock and very simple "lathe" work can be done with an electric drillmotor held in a vise. The yokes themselves--the little "slingshot" assemblies that hold the earpieces pivotwise and connect to the headband--cleaned up well with Barkeeper's Friend followed by polish. Nothing exotic here, though mind all the pressed-together parts for anything loose. And that leaves the mother-lode of unobtanium: the cord. Well, all is not lost. Just received from PhoneCo [3] some brand-new tinsel cord, toothy lugs, and phone tips! Alas, the pre-made Y cord *is* no longer made, but by careful braiding (two wires and the cloth outer sleeve), it is possible to make up a workable cord. Start at one earpiece and braid over to the other, interleaving the braid at the fork. There are some quirks to this: The earpieces should be wired series-aiding--most of the rear-terminal cans have one terminal marked + and you do 'em just like batteries. The tinsel-cord has red and cream tracers in the two wires, and when you get ready to braid, you'll have one wire that just goes from side to side--it'll be one of the two tracer colors, so start at the end that has the same color tracer in each wire; you'll be able to tell which is which with them unbraided, hook 'em up, and when you get over to the other side, the tracers will tell you there. The + connection should go the the battery side of your phone jack, btw. Cloth-covered tinsel cord has an outer "sleeve." When terminating this stuff, it is best to open up the braid and pull the wires out through it, then tie off the empty sleeving around itself back where the wires are still inside. Friction between the wires and the sleeve in a long length--like for the "Y"--is really amazing but if you work slowly and carefully it can be done. A scribe or a big, blunt harness needle is useful for the fishing-out process. "Toothy lugs" are special little critters. They have two teeth inside the barrel, which bite though the cloth and into the tinsel. Crimping them up, you work the wire into place (leave some slopped out the lug side, makes it easier), then use a series of crimps with pliers or (better) a crimper for insulated lugs, working around the diameter until the barrel is squeezed in tight and round. Then trim off the excess. If you are using a 1/4" plug, put 'em on the set end, too, and use the "fat" screw terminal phone plugs Radio Shack still sells--they won't grip tips like the old Switchcraft version. (No longer made--hunt 'em up at hamfests; they have a hole to tie off the outer sleeving for strain relief and grooves in the terminals that will hold a tip plug under the screw). PhoneCo's tip plugs are *machined* rather than the drawn types common on cans in later years. They look really good! If you're using tip plugs, gently expose the tinsel and wrap it with fine bare wire (old extension cords are a good source). Tin it up and set aside. Clamp the plug between a couple of wood scraps in your vise, tin the inside well (get it about half-full of solder), then take the tinned lead and plunge it in. Mind your eyes, sometimes it will spit. ...Tinsel cord is tricky to solder. It may take a few tries. And there you have it--"Headphone Hospital." 73, --Bobbi ----------------------------- Footnotes: 1. Indiana Historical Radio Society, an FB bunch of BCLs. ;) Picked up a real Raytheon '10, too, and some QSTs, but major ham-pickings were slim. 2. And, I might add, a first-rate old-radio ham of the most breadboarded sort! Shouldn't ought to let machinists near wood, it's almost too easy for 'em. :) 3. PhoneCo, Inc., 19813 East Mill Road, P.O. Box 70, Galesburg, WI 54630; phone (608) 582-4124; fax (608) 582-4593; http://www.phonecoinc.com Pretty good folks. Price of some of the all-original old phones will stun you but repair parts are reasonable. KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 12:06:47 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA06323 for ; Tue, 23 Feb 1999 12:06:46 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA23750 for ; Tue, 23 Feb 1999 11:08:19 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA01401 for glowbugs-outgoing; Tue, 23 Feb 1999 07:51:01 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA01395 for ; Tue, 23 Feb 1999 07:50:55 -0800 (PST) Received: from wb8mhe (circ-ras2-2-cs-12.dial.bright.net [209.143.14.141]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id KAA13581; Tue, 23 Feb 1999 10:50:27 -0500 (EST) Message-ID: <004501be5f44$3c27aac0$8d0e8fd1@wb8mhe> From: "Dick Blaney" To: "Roberta J. Barmore" , "BA" , Cc: "Dick Blaney" Subject: Re: GB> Headphone rewiring, etc. Date: Tue, 23 Feb 1999 10:50:25 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi Roberta, Good advice on the fine Brandes Superior cans. I found that the OLD style phone tips are still available. I got a supply quite reasonably from Mouser Electronics. Also, when pulling the tinsel conductors through the side of the outer braid, the oldtimers used to leave several inches of the loose braid to tie off to the yoke support, to releive any strain on the fragil tinsel cord. While at the Ham Fests, I always watch for the old large barrel 1/4" phone plugs with the big screw terminals inside. Most of the older phone plugs like this had 2 grooves under the screw heads that were made to accept and clamp phone tips, converting the headset to 1/4". Most also had a loop or hole on one of the screw lugs to tie off the braid at that end to releive strain there, too. With this type of phone plug, you could use your favorite "cans" easily on either type of connection without cutting the tinsel cord. I still use my Brandes Superior and another pair of Cannon Ball cans after 50 years, both with the same original cords. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: Roberta J. Barmore To: BA ; glowbugs@piobaire.mines.uidaho.edu Date: Tuesday, February 23, 1999 9:49 AM Subject: GB> Headphone rewiring, etc. > >Hi! > > Sandy's been spreading the Good Word about regen sets (and no bunk, >though I will add that good ol' polystyrene is a low-loss RF >insulator, when you can find the actual stuff and not some fake version). > So--say you've got a first-rate regen set; how are your headphones? > > I've been having Headphone Hospital recently, starting with a set of >the seemingly ubiquitous Brandes ("Superior Matched Tone!) cans that >showed up a local old-radio meet [1]. > > Rule 1: Never set headphones down directly on your workench! Brush off >the iron filings (etc.) and lay down a sheet of paper to work on. >Headphone magnets are pretty powerful and bits of steel stuck to the poles >do 'em no good. > > Brandes liked aluminium backs, which clean up well with Flitz polish; >cap threads on mine had some aluminium "white grunge" in 'em, but after >external cleaning I was able to (carefully!) unscrew the Bakelite caps, >set the diapraghms aside (on the paper, on a flat, smooth surface--don't >bend 'em!), and use a small scribe to clean out the threads. > > A small strip of masking tape lifted off the usual metal chips that >were already stuck on the pole pieces. Be careful, the windings are close >by and it is *tiny* wire. In extreme cases, duct tape can be used but >watch out, it's seriously sticky. > > A weak point of the Brandes and many similar cans with terminals on the >outside is the point where the windinings connect to the threaded terminal >stud inside. There usually no slack in the wire--if someone has managed >to spin the stud, it breaks. Lucked out this time, mine were okay. > > Cleaned and polished up the caps--household ammonia followed by >Flitz--and very carefully cleaned the diaphragms; leave them laying flat >and work gently with dilute ammonia. Let each side dry before turning >over. Sometimes it helps to turn them over on reinstallation, as they can >take a "set" from the permanent magnets. Keep them clean! > > The headband on my set has canvas sewn over steel wires; canvas is >brittle but not bad. (This can be replaced--old blue-jean denim is just >about perfect--but it's a lot of slow hand-sewing). A clamping nut was >missing from one side (the old ones didn't have a sliding fit between the >"yoke" that holds the earpiece and the band, but a collet and clamp nut >instead). Turned out to be 1/4-32, a NEF (National Extra Fine) thread. >(But there can be surprises here--a friend's Brandes cans have 1/4-39 >clamp nuts!) This was "fixed" by the simple expedient of having a good >machinist among my local ham friends [2]; but note that McMaster-Carr >carries taps in most every standard thread there ever was (though 39-pitch >isn't one of 'em) and a workable replacment could have been made from a >little chunk of brass drilled and tapped to fit. Start with round stock >and very simple "lathe" work can be done with an electric drillmotor held >in a vise. > > The yokes themselves--the little "slingshot" assemblies that hold the >earpieces pivotwise and connect to the headband--cleaned up well with >Barkeeper's Friend followed by polish. Nothing exotic here, though mind >all the pressed-together parts for anything loose. > > And that leaves the mother-lode of unobtanium: the cord. Well, all is >not lost. Just received from PhoneCo [3] some brand-new tinsel cord, >toothy lugs, and phone tips! Alas, the pre-made Y cord *is* no longer >made, but by careful braiding (two wires and the cloth outer sleeve), it >is possible to make up a workable cord. Start at one earpiece and braid >over to the other, interleaving the braid at the fork. > There are some quirks to this: > The earpieces should be wired series-aiding--most of the rear-terminal >cans have one terminal marked + and you do 'em just like batteries. The >tinsel-cord has red and cream tracers in the two wires, and when you get >ready to braid, you'll have one wire that just goes from side to >side--it'll be one of the two tracer colors, so start at the end that has >the same color tracer in each wire; you'll be able to tell which is which >with them unbraided, hook 'em up, and when you get over to the other side, >the tracers will tell you there. The + connection should go the the >battery side of your phone jack, btw. > Cloth-covered tinsel cord has an outer "sleeve." When terminating this >stuff, it is best to open up the braid and pull the wires out through it, >then tie off the empty sleeving around itself back where the wires are >still inside. Friction between the wires and the sleeve in a long >length--like for the "Y"--is really amazing but if you work slowly and >carefully it can be done. A scribe or a big, blunt harness needle is >useful for the fishing-out process. > "Toothy lugs" are special little critters. They have two teeth inside >the barrel, which bite though the cloth and into the tinsel. Crimping >them up, you work the wire into place (leave some slopped out the lug >side, makes it easier), then use a series of crimps with pliers or >(better) a crimper for insulated lugs, working around the diameter until >the barrel is squeezed in tight and round. Then trim off the excess. If >you are using a 1/4" plug, put 'em on the set end, too, and use the "fat" >screw terminal phone plugs Radio Shack still sells--they won't grip tips >like the old Switchcraft version. (No longer made--hunt 'em up at >hamfests; they have a hole to tie off the outer sleeving for strain relief >and grooves in the terminals that will hold a tip plug under the screw). > PhoneCo's tip plugs are *machined* rather than the drawn types common >on cans in later years. They look really good! If you're using tip >plugs, gently expose the tinsel and wrap it with fine bare wire (old >extension cords are a good source). Tin it up and set aside. Clamp the >plug between a couple of wood scraps in your vise, tin the inside well >(get it about half-full of solder), then take the tinned lead and plunge >it in. Mind your eyes, sometimes it will spit. ...Tinsel cord is tricky >to solder. It may take a few tries. > > And there you have it--"Headphone Hospital." > > 73, > --Bobbi > >----------------------------- >Footnotes: >1. Indiana Historical Radio Society, an FB bunch of BCLs. ;) Picked up a > real Raytheon '10, too, and some QSTs, but major ham-pickings were > slim. >2. And, I might add, a first-rate old-radio ham of the most breadboarded > sort! Shouldn't ought to let machinists near wood, it's almost too > easy for 'em. :) >3. PhoneCo, Inc., 19813 East Mill Road, P.O. Box 70, Galesburg, WI 54630; > phone (608) 582-4124; fax (608) 582-4593; http://www.phonecoinc.com > Pretty good folks. Price of some of the all-original old phones will > stun you but repair parts are reasonable. > >KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore > FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA > Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys > From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 14:26:33 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA06393 for ; Tue, 23 Feb 1999 14:26:32 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA25778 for ; Tue, 23 Feb 1999 13:28:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA02644 for glowbugs-outgoing; Tue, 23 Feb 1999 09:55:14 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f132.hotmail.com [207.82.251.11]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA02639 for ; Tue, 23 Feb 1999 09:55:10 -0800 (PST) Received: (qmail 5451 invoked by uid 0); 23 Feb 1999 17:54:20 -0000 Message-ID: <19990223175420.5450.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Tue, 23 Feb 1999 09:54:20 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: rbarmore@indy.net Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- Headphone rewiring, etc. Date: Tue, 23 Feb 1999 09:54:20 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >(But there can be surprises here--a friend's Brandes cans have 1/4-39 >clamp nuts!) This was "fixed" by the simple expedient of having a good >machinist among my local ham friends [2]; but note that McMaster-Carr >carries taps in most every standard thread there ever was (though 39-pitch >isn't one of 'em) Another good source of machinist's supplies is Manhattan Supply Company (aka MSC Industrial Supply Company). They have special size taps and dies, no 1/4-39 but they do have 1/4-18,24,27,30,32,36,40,48,56,60,64,80 !! Their number is 1-800-645-7270 and I am pretty sure that they are also on the web but I don't know their address. Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 14:30:26 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA06399 for ; Tue, 23 Feb 1999 14:30:25 -0500 Received: from piobaire.mines.uidaho.edu (piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA07909 for ; Tue, 23 Feb 1999 13:32:01 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA02716 for glowbugs-outgoing; Tue, 23 Feb 1999 10:02:26 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom6.netcom.com (tomrice@netcom6.netcom.com [192.100.81.114]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA02708 for ; Tue, 23 Feb 1999 10:02:19 -0800 (PST) Received: (from tomrice@localhost) by netcom6.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id KAA24084; Tue, 23 Feb 1999 10:01:37 -0800 (PST) From: "Tom R. Rice" Message-Id: <199902231801.KAA24084@netcom6.netcom.com> Subject: GB> cleaning ceramic sockets? To: boatanchors@sco.theporch.com (boatanchors list) Date: Tue, 23 Feb 1999 10:01:36 -0800 (PST) Cc: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The posts on using ceramic sockets for the RF stuff in regens remind me that I have several of these dudes which are prettry grubby. I'm highly receptive to suggestions for cleaning which do not encourage water retention/adsorption. Some of these guys are unglazed. thanks, WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 14:50:55 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA06416 for ; Tue, 23 Feb 1999 14:50:54 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA30574 for ; Tue, 23 Feb 1999 13:51:47 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA03079 for glowbugs-outgoing; Tue, 23 Feb 1999 10:22:52 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA03074 for ; Tue, 23 Feb 1999 10:22:48 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id NAA11796; Tue, 23 Feb 1999 13:23:05 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id NAA25615; Tue, 23 Feb 1999 13:23:02 -0500 (EST) Date: Tue, 23 Feb 1999 13:22:59 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: "Tom R. Rice" cc: glowbugs@piobaire.mines.uidaho.edu, BA Subject: GB> Re: cleaning ceramic sockets? In-Reply-To: <199902231801.KAA24084@netcom6.netcom.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Tom! Have you tried 1,1,1 trichlor? Sometimes sold as "Carbo-Chlor" (more lately, "Carbo-Sol," a formulation supposedly safer for the ozone), it is a good cleaner and not only does it contain no water, it's antagonistic to to water--takes it up and evaporates off. Use in a well-ventilated area! Acetone, mineral spirits, or the more horrible-awful stuff, like toluelene, will also do the job and not carry water into the ceramic. I have never found any of them to harm ceramic, though the usual disclaimers apply. Most of them are a real good thing to *not* sniff, and catch fire with remarkable ease, so use at your own risk. ...First-level cleaning, one of those good white drafting erasers is probably worth a try--low-risk and easy. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 16:58:02 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA06483 for ; Tue, 23 Feb 1999 16:57:58 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA21152 for ; Tue, 23 Feb 1999 15:59:29 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA04277 for glowbugs-outgoing; Tue, 23 Feb 1999 12:14:19 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail1.radix.net (mail1.radix.net [209.48.224.31]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA04272 for ; Tue, 23 Feb 1999 12:14:15 -0800 (PST) Received: from saltmine.radix.net (saltmine.radix.net [209.48.224.40]) by mail1.radix.net (8.9.1/8.9.1) with ESMTP id PAA27387; Tue, 23 Feb 1999 15:13:41 -0500 (EST) Received: (from gc@localhost) by saltmine.radix.net (8.8.7/8.8.7) id PAA09771; Tue, 23 Feb 1999 15:13:36 -0500 (EST) Date: Tue, 23 Feb 1999 15:13:36 -0500 (EST) From: Gary Chatters Message-Id: <199902232013.PAA09771@saltmine.radix.net> To: alihernlem@hotmail.com, rbarmore@indy.net Cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: GB- Headphone rewiring, etc. Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >Another good source of machinist's supplies is Manhattan Supply Company >(aka MSC Industrial Supply Company). They have special size taps and >dies, no 1/4-39 but they do have 1/4-18,24,27,30,32,36,40,48,56,60,64,80 >!! > >Their number is 1-800-645-7270 and I am pretty sure that they are also >on the web but I don't know their address. > Have I been web surfing too much or what? Got it on the first guess! :-) http://www.mscindustrial.com Gary From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 17:53:26 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA06516 for ; Tue, 23 Feb 1999 17:53:26 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA07157 for ; Tue, 23 Feb 1999 16:54:52 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA04941 for glowbugs-outgoing; Tue, 23 Feb 1999 12:59:45 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from www.durham.net (root@WWW.Durham.Net [198.73.212.119]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA04936 for ; Tue, 23 Feb 1999 12:59:39 -0800 (PST) Received: from Docusystems.durham.net (tserver1-3.durham.net [198.73.213.67]) by www.durham.net (8.8.8/8.8.7) with ESMTP id PAA18063; Tue, 23 Feb 1999 15:59:05 -0500 (EST) Message-Id: <199902232059.PAA18063@www.durham.net> From: "Edward Swynar VE3 CUI" To: "Sandy W5TVW" , , "Bill Meara" Subject: Re: GB> Regenerative receivers... Date: Tue, 23 Feb 1999 15:50:33 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Bill... Believe me, you haven't LIVED until you've built a reasonably-decent regenerative receiver! I've found my 4-tube '29 replica rig to be, in many ways, actually more complex than my superhet "Mate for the Mighty Midget"!!! Problems...? Many! Regrets...? NONE!!!!! ~73~ Eddy VE3CUI - VE3XZ ---------- > From: Bill Meara > To: Sandy W5TVW ; glowbugs@piobaire.mines.uidaho.edu > Subject: Re: GB> Regenerative receivers... > Date: February 23, 1999 8:37 AM > > Sandy: I keep swearing that I will never again try to build one of those > finicky regens. There seems to be too much black magic involved. But on > Sunday I was at an estate sale, and there, amidst a lot of junk on an old > work bench, was a National Velvet Vernier "Dial Type 3." It is now sitting > here, taunting me: "Build a regen! If you were a real ham, you'd build a > regen!" > 73 de N2CQR > Bill Meara, Falls Church, Virginia > wmeara@erols.com G-QRP #7965 > http://www.erols.com/wmeara > From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 17:30:43 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA06503 for ; Tue, 23 Feb 1999 17:30:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA02146 for ; Tue, 23 Feb 1999 16:32:14 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA04788 for glowbugs-outgoing; Tue, 23 Feb 1999 12:51:49 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hdo1.hdo.net (MDk9DytndiRo5H1K22Nwq5HJvGuDeCAg@hdo1.hdo.net [209.76.66.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA04783 for ; Tue, 23 Feb 1999 12:51:42 -0800 (PST) Received: from k6qq (pm-1-04.hdo.net [209.76.66.227]) by hdo1.hdo.net (8.9.1a/8.9.1) with SMTP id MAA15727; Tue, 23 Feb 1999 12:50:46 -0800 Message-ID: <007101be5f6e$abe97e40$07424cd1@k6qq> From: "John Moriarity" To: "Roberta J. Barmore" , "Tom R. Rice" Cc: , "BA" Subject: Re: GB> Re: cleaning ceramic sockets? Date: Tue, 23 Feb 1999 12:52:57 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3155.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Another good trick (if you have a small ultrasonic cleaner) is to seal the part in a baggie with just enough Trichlor to cover it, and then immerse that in the ultrasonic cleaner filled with water. That way you don't use as much solvent, or release so much into the air. 73, John, K6QQ Alturas, CA From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 18:24:27 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA06535 for ; Tue, 23 Feb 1999 18:24:26 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA15094 for ; Tue, 23 Feb 1999 17:26:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA05226 for glowbugs-outgoing; Tue, 23 Feb 1999 13:20:10 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f254.hotmail.com [207.82.251.145]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id NAA05220 for ; Tue, 23 Feb 1999 13:20:06 -0800 (PST) Received: (qmail 14187 invoked by uid 0); 23 Feb 1999 21:19:10 -0000 Message-ID: <19990223211910.14185.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Tue, 23 Feb 1999 13:19:09 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: rbarmore@indy.net Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- Re: cleaning ceramic sockets? Date: Tue, 23 Feb 1999 13:19:09 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO BTW, 1,1,1 trichlor also is a great tapping fluid. It used to be sold as "Tap Magic" (but I think that they have now switched to a new formula for environmental reasons). Works better (much better, IMHO) than cutting oil for internal threads. Brad >Hi, Tom! > > Have you tried 1,1,1 trichlor? Sometimes sold as "Carbo-Chlor" (more >lately, "Carbo-Sol," a formulation supposedly safer for the ozone), it is >a good cleaner and not only does it contain no water, it's antagonistic to >to water--takes it up and evaporates off. Use in a well-ventilated area! > Acetone, mineral spirits, or the more horrible-awful stuff, like >toluelene, will also do the job and not carry water into the ceramic. I >have never found any of them to harm ceramic, though the usual disclaimers >apply. Most of them are a real good thing to *not* sniff, and catch fire >with remarkable ease, so use at your own risk. > ...First-level cleaning, one of those good white drafting erasers is >probably worth a try--low-risk and easy. > 73, > --Bobbi > >KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore > FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA > Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 20:05:59 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA06660 for ; Tue, 23 Feb 1999 20:05:58 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA07599 for ; Tue, 23 Feb 1999 19:07:28 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA06441 for glowbugs-outgoing; Tue, 23 Feb 1999 14:59:50 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc07.worldnet.att.net (mtiwmhc07.worldnet.att.net [204.127.131.42]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA06436 for ; Tue, 23 Feb 1999 14:59:38 -0800 (PST) Received: from LOCALNAME ([12.65.146.70]) by mtiwmhc07.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990223225833.HFPV5451@LOCALNAME>; Tue, 23 Feb 1999 22:58:33 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: roy.morgan@nist.gov, From: Sandy W5TVW Subject: RE: GB> cleaning ceramic sockets? Message-Id: <19990223225833.HFPV5451@LOCALNAME> Date: Tue, 23 Feb 1999 22:58:33 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have had extremely good results using a toothbrush, a small paintbrush and Dow "Scrubbin' bubbles' bathroom cleaner! Really gets after the crud. Then a careful scrubbing by hand and a thorough rinse, followed by a short stint at very low heat (200F or less) in the oven. They come out almost like new. I haven't tried the dishwasher yet, my XYL would *kill* me! 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 21:41:07 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA06713 for ; Tue, 23 Feb 1999 21:41:06 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA00576 for ; Tue, 23 Feb 1999 20:42:39 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA07769 for glowbugs-outgoing; Tue, 23 Feb 1999 17:04:00 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA07764 for ; Tue, 23 Feb 1999 17:03:55 -0800 (PST) Received: from wb8mhe (circ-ras3-3-cs-19.dial.bright.net [205.212.154.150]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id UAA15724; Tue, 23 Feb 1999 20:01:46 -0500 (EST) Message-ID: <000c01be5f91$40e68b60$969ad4cd@wb8mhe> From: "Dick Blaney" To: , , "Sandy W5TVW" Cc: "Dick Blaney" Subject: Re: GB> cleaning ceramic sockets? Date: Tue, 23 Feb 1999 20:01:38 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO My wife consented to let me use the dishwasher, if I did the dishes that night. Cleaned those ceramic sockets & rotary switches great. Take the steel rings off first. Bake in the wife's oven at about 200 deg. to dry off the surface. (had to do the dinner dishes the next night, too.) 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: Sandy W5TVW To: roy.morgan@nist.gov ; glowbugs@piobaire.mines.uidaho.edu Date: Tuesday, February 23, 1999 7:12 PM Subject: RE: GB> cleaning ceramic sockets? > I have had extremely good results using a toothbrush, a small >paintbrush and Dow "Scrubbin' bubbles' bathroom cleaner! Really gets after >the crud. >Then a careful scrubbing by hand and a thorough rinse, followed by a >short stint at very low heat (200F or less) in the oven. They come out almost >like new. > I haven't tried the dishwasher yet, my XYL would *kill* me! >73, >Sandy W5TVW > From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 22:23:22 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA06735 for ; Tue, 23 Feb 1999 22:23:22 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA30519 for ; Tue, 23 Feb 1999 21:25:01 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA08328 for glowbugs-outgoing; Tue, 23 Feb 1999 17:52:50 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom18.netcom.com (tomrice@netcom18.netcom.com [192.100.81.131]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA08322 for ; Tue, 23 Feb 1999 17:52:44 -0800 (PST) Received: (from tomrice@localhost) by netcom18.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id RAA10501; Tue, 23 Feb 1999 17:51:56 -0800 (PST) From: "Tom R. Rice" Message-Id: <199902240151.RAA10501@netcom18.netcom.com> Subject: GB> ceramic cleaning followup To: boatanchors@sco.theporch.com (boatanchors list) Date: Tue, 23 Feb 1999 17:51:55 -0800 (PST) Cc: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Wow! I'm really grateful for all the helpful answers to the socket-cleaning question. They've generated a contact high, which I'll temper by offering the following mini-bio, in explanation: The ever-perceptive Bobbi has correctly surmised that I'm inclined to prefer a nasty chemical solution to the cleaning problem, probably because I was raised on the fumes of Carbon Tetrachloride, usually tapped from one of those pretty brass Pyrene fire extinguishers, found on walls and heavy equipment everywhere in those days. My dishwasher is a sturdy German girl who balks at the imposition of additional burdens. Having been raised near the Hanford Atomic Works, of Plutonium fame, I still exhibit a faint phosphorescence at night. This phenomenon is well explained by the work of the pioneers, Dake & DeMent, who are of my generation, and were among my high school heroes. In view of this, a few toxic fumes are of little concern ;-) Barry's comment re wax impregnation is very helpful, as, indeed, some of my sockets are so blessed. Thank you all very much indeed! 73 de WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 23:05:59 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA06760 for ; Tue, 23 Feb 1999 23:05:58 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA04091 for ; Tue, 23 Feb 1999 22:07:25 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA08903 for glowbugs-outgoing; Tue, 23 Feb 1999 18:41:20 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from omzrelay.mcit.com (omzrelay.mcit.com [166.37.204.49]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA08897 for ; Tue, 23 Feb 1999 18:41:17 -0800 (PST) Received: from omta1.mcit.com (omta1.mcit.com [166.37.204.2]) by omzrelay.mcit.com (8.8.7/) with ESMTP id CAA18238 for ; Wed, 24 Feb 1999 02:40:11 GMT Received: from localHost ([166.44.139.152]) by omta1.mcit.com (InterMail v03.02.05 118 121 101) with SMTP id <19990224024002.FVSG16006@localHost> for ; Tue, 23 Feb 1999 20:40:02 -0600 Date: Tue, 23 Feb 1999 20:40 -0600 (CST) From: Chris Dennis X-Mailer: MailRoom for Internet v2.3a (www.SierraSol.com/SierraSol) To: Glowbugs@piobaire.mines.uidaho.edu Subject: GB> Vacuum Tube Question Message-Id: <19990224024002.FVSG16006@localHost> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I am looking to buy a pair of 6146A tubes for my Heathkit HW-101. Are the 6146W tubes electrically the same as the 6146A? I understand the W version is a durable military version. Also, how critical is it get a "matching set" ? Thanks, Chris, KD5EIA From glowbugs-owner@piobaire.mines.uidaho.edu Tue Feb 23 23:48:28 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA06783 for ; Tue, 23 Feb 1999 23:48:27 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA22615 for ; Tue, 23 Feb 1999 22:50:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA09453 for glowbugs-outgoing; Tue, 23 Feb 1999 19:25:25 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA09447 for ; Tue, 23 Feb 1999 19:25:20 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id VAA11716; Tue, 23 Feb 1999 21:49:35 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id VAA26490; Tue, 23 Feb 1999 21:49:29 -0500 (EST) Date: Tue, 23 Feb 1999 21:49:28 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: Tony Schroeder N8SNC cc: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: Headphone rewiring, etc. In-Reply-To: <199902231602.LAA27669@sparticus.bright.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Tony! Old headphone magnets can lose magnetism, especially if the cans have been connected in the plate circuit of a receiver backwards to the preferred polarity. (Mind that tracer, gang, or get the DC off the headphone jack!) Dropping them is another cause; we're spolied by modern fancy magnetic alloys but the older ones really react to mechanical shock. Elmer Osterhout, in "Headphones: Operaton and Repair" (available from Modern Radio Labs, P.O. Box 14902, Minneapolis, MN 55414-0902 for $1.25 ppd--might add a little extra, postage has gone up; don't worry, they'll send the change back!) describes a couple of remagnetizing methods. One way is to take the cans apart enough to wind 12 turns of #24 around each magnet. On the second magnet, reverse the winding direction to keep polarity right. Hook to a storage battery and hold a compass over the pole pices. If it spins, reverse the battery. Leave it on just longe enough to do the job--too long, and the wire will heat up. Check by touching diaphragm to poles and puling away; you can tell when it has enough "grab." This is risky--you could *melt* the wire with too much current! Might look up #24's ampacity on a wire table and fuse appropriately. Another method is to remove the magnets--mark 'em first, headphone magnets go in so they repel each other, a bit counterintuitive the first time you see it. Then suspend a good, strong horsehoe magnet on a string over one, and let it go to the pole it attracted to; get good contact and add the other magnet, also in the way it "wants" to go. If they won't reach, use a piece of iron to bridge to the other pole. You can either leave them overnight, or tap 'em sharply with a small hammer to "set" the magentism after they've been on a few minutes. (Careful, some magnetic materials are quite brittle). EO notes that magnetic induction requires good, solid joints--when you put the cans back together, get everything screwed down tightly. I believe Brandes phones are pretty typical of the breed, with the coils wound on pole pieces and the magnets proper being semi-circular widgets mounted against the shell. (Some makes have them stacked, or interleaved in a helical manner). You will amost certainly have to unsolder the coil leads to get the magents out--make note of what's where, and treat that tiny wire casrefully! If you do break it, unwinding one or two turns to reconnect, or adding a little fine wire, doesn't hurt them much--there are many hundreds of turns. Usual caveats apply, only more so: I have *not* had to remagnetize a pair of cans (yet). Try these methods at your own risk, void where prohibited by law, etc. etc. EO uses a slightly different method to do tip plugs, wrapping fine wire over the tinsel *and* onto the jacket a little, tinning the wire quickly to reduce the odds of burning the string the tinsel is wrapped around. His warnings about solder "spitting" from the well-tinned plug are even more stringent than mine; he suggests goggles or shop glasses. Given that EO started in radio in 1915 and is of an earlier school of thought on safety than am I (he's casual enough with line voltage to give me the willies!), you should take his advice to heart. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 24 00:34:59 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA06808 for ; Wed, 24 Feb 1999 00:34:57 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA08736 for ; Tue, 23 Feb 1999 23:36:35 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA10091 for glowbugs-outgoing; Tue, 23 Feb 1999 20:20:29 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id UAA10083; Tue, 23 Feb 1999 20:20:24 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 23 Feb 1999 20:20:23 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Chris Dennis cc: Glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Vacuum Tube Question In-Reply-To: <19990224024002.FVSG16006@localHost> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > I am looking to buy a pair of 6146A tubes for my Heathkit HW-101. Are > the 6146W tubes electrically the same as the 6146A? For the HW-101, they are essentially identical. > I understand the > W version is a durable military version. Also, how critical is it get > a "matching set" ? Again, for the HW-101, it is not critical. The tubes are in parallel. If one was completely flat and the other one was new, the only effect you would notice would more than likely be a drop in output power. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 24 04:16:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id EAA06921 for ; Wed, 24 Feb 1999 04:16:23 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id DAA32069 for ; Wed, 24 Feb 1999 03:18:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id AAA11909 for glowbugs-outgoing; Wed, 24 Feb 1999 00:06:06 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from avocet.prod.itd.earthlink.net (avocet.prod.itd.earthlink.net [207.217.120.50]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id AAA11904 for ; Wed, 24 Feb 1999 00:06:02 -0800 (PST) Received: from default (pool036-max7.mpop2-ca-us.dialup.earthlink.net [207.217.241.86]) by avocet.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id AAA14035 for ; Wed, 24 Feb 1999 00:05:14 -0800 (PST) Message-Id: <3.0.5.32.19990224000148.01a06ce0@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Wed, 24 Feb 1999 00:01:48 -0800 To: glowbugs@piobaire.mines.uidaho.edu From: Jim Hill Subject: GB> Re: Headphones, determining polarity, etc. Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO After reading a number of posts telling the importance of correctly connecting headsets, I wondered how to determine which lead should be connected to B+ I tried look at light reflected across the diaphragm, but could detect no movement. Also tried removing the diaphragm and placing a compass near the pole pieces. Again, no change when a few mills went through the headphones. I could increase the current until it overpowered the magnets, but that sounds like destructive testing. I looked at a number of headsets, and my Brandes Superior had terminals on the rear, with a + marked to the terminal for the wire with no tracer. So, I guess the lead with no tracer should be connected to B+. The next problem is leads. most wear seems to occur where they are connected to the headsets and the tip pins. My Baldwin's showed wear at both places. I put short lengths of clear heat-shrink tubing so it covered the upper part of the tip pins and the lower part of the cords. It worked fine, and the wear point is moved up the cord a short distance. With clear tubing, I can cut it off at a later date with minimal damage to the cloth covering. I'll try a little plastic electrician's tape to reinforce the wire where it enters the headset. From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 24 09:55:54 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id JAA07096 for ; Wed, 24 Feb 1999 09:55:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id IAA32116 for ; Wed, 24 Feb 1999 08:57:42 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id FAA15131 for glowbugs-outgoing; Wed, 24 Feb 1999 05:46:08 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id FAA15126 for ; Wed, 24 Feb 1999 05:46:04 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id IAA03266; Wed, 24 Feb 1999 08:46:46 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id IAA16593; Wed, 24 Feb 1999 08:46:43 -0500 (EST) Date: Wed, 24 Feb 1999 08:46:40 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: Arden Allen cc: Old Tube Radios , free glowbugs Subject: GB> Re: cleaning ceramic sockets? In-Reply-To: <199902240601.WAA20019@mail-gw5.pacbell.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO FWIW, the "trichlor" to which I referred and with which I am familair (it's a super-duper defluxer, on *most* things--eats "saran wrap" condensers for lunch, however) is, in fact, 1,1,1 trichlorethane, commonly sold as "Carbo-Chlor" and more recently (reformulated to be nicer to the ozone) as "Carbo-Sol." I can never remember offhand if it's -ethane or -ethylene and lazily tend to just drop the ending. They'd probably run me out of a chem lab on a rail for that trick.... ("H20, H2SO4, what's the diff?") KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 24 15:09:21 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA07315 for ; Wed, 24 Feb 1999 15:09:20 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA23952 for ; Wed, 24 Feb 1999 14:11:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA17765 for glowbugs-outgoing; Wed, 24 Feb 1999 10:17:31 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom4.netcom.com (tomrice@netcom4.netcom.com [192.100.81.107]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA17759 for ; Wed, 24 Feb 1999 10:17:23 -0800 (PST) Received: (from tomrice@localhost) by netcom4.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id KAA12502; Wed, 24 Feb 1999 10:16:59 -0800 (PST) From: "Tom R. Rice" Message-Id: <199902241816.KAA12502@netcom4.netcom.com> Subject: GB> cleaning: bad limerick To: boatanchors@sco.theporch.com (boatanchors list) Date: Wed, 24 Feb 1999 10:16:59 -0800 (PST) Cc: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO -ethane or -ethylene and lazily tend to just drop the ending. They'd probably run me out of a chem lab on a rail for that trick.... ("H20, H2SO4, what's the diff?") You youngsters might not be familiar with the old-timey limerick: Little Johnny was a chemist But poor Johnny is no more For what he thought was H20 Was H2SO4! with no apologies, 73 de WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 24 16:46:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA08685 for ; Wed, 24 Feb 1999 16:46:17 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA27602 for ; Wed, 24 Feb 1999 15:48:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA19155 for glowbugs-outgoing; Wed, 24 Feb 1999 12:04:26 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from snipe.prod.itd.earthlink.net (snipe.prod.itd.earthlink.net [207.217.120.62]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA19149 for ; Wed, 24 Feb 1999 12:04:19 -0800 (PST) Received: from default (pool013-max12.mpop2-ca-us.dialup.earthlink.net [207.217.242.63]) by snipe.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id MAA23185 for ; Wed, 24 Feb 1999 12:03:54 -0800 (PST) Message-Id: <3.0.5.32.19990224120054.01b83e20@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Wed, 24 Feb 1999 12:00:54 -0800 To: glowbugs@piobaire.mines.uidaho.edu From: Jim Hill Subject: GB> Re: Headphones, Determining Polarity, Oops Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On my 2/24/99 Post about headphone polarity, I goofed. Looking at my Brandes Superior headphone with terminals on the rear, The + terminal is connected to the lead with a tracer, so it should be connected to B+, (assuming nobody reversed the leads in past years). Does anyone disagree? I looked at a number of headphones to determine tracer color. One set is fairly recent, coming from the local school language lab, where I was able to purchase a number of headsets. The others were much older. The leads connected to the radio are no tracer and yellow tracer. The lead between the two headphones has a red tracer. The exception was my Brandes, where the red and yellow tracer were interchanged. 73'3 Jim From glowbugs-owner@piobaire.mines.uidaho.edu Wed Feb 24 18:03:40 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA08956 for ; Wed, 24 Feb 1999 18:03:40 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA02354 for ; Wed, 24 Feb 1999 17:05:32 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA20245 for glowbugs-outgoing; Wed, 24 Feb 1999 13:00:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from www.durham.net (root@WWW.Durham.Net [198.73.212.119]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA20237 for ; Wed, 24 Feb 1999 13:00:48 -0800 (PST) Received: from Docusystems.durham.net (tserver3-30.durham.net [198.73.213.158]) by www.durham.net (8.8.8/8.8.7) with ESMTP id PAA20205 for ; Wed, 24 Feb 1999 15:59:51 -0500 (EST) Message-Id: <199902242059.PAA20205@www.durham.net> From: "Edward Swynar VE3 CUI" To: Subject: Fw: GB> Regenerative receivers... Date: Wed, 24 Feb 1999 15:59:03 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO ---------- > From: Edward Swynar VE3 CUI > To: Ken Gordon ; Edward Swynar VE3 CUI > Subject: Re: GB> Regenerative receivers... > Date: February 23, 1999 7:43 PM > > Ken... > > By far, the toughest task awaiting the would-be builder of a regenerative > receiver---in my experience, anyway---is the design & construction of the > detector/feedback coil... > > Too close coupling between the tickler & main coil, and/or too many turns > in the tickler, results in the darned thing wanting to oscillate all the > time---conversely, too little coupling between the two, and/or too few > turns in the tickler, results in the thing NOT wanting to oscillate at all! > > > You'll swear that coming up with the right balance would tax the patience > of Job! Then, just when you get the thing controllably "plopping" gently > into oscillation & you're lulled into a smug state of self-satisfaction, > you'll tune up (or down) the band, & the darned thing will squeal on > you---again. So...once more, you back off on the regeneration control, and > start the process anew, hoping the regeneration will be controllable > throughout the rotation of the tuning capacitor... > > Additionally, if you have an RF gain control in the cathode of your first > tube, the setting of it will have a bearing upon the ability (or > inability!) of the set to oscillate. > > Two things that I have incorporated in my receiver, and which I think are > MUST HAVES in any such affair, are: 1) an RF attenuator right at the > antenna terminal (just a low value pot, a la Dave Newkirk's recent QST > article---it allows control over signal strength, but most importantly with > minimal impact upon the stability of the receiver), and, 2) a pot to > control screen voltage in the detector tube, AND a variable > feedback/throttle capacitor (in other words, TWO methods to control > regeneration). The pot is adjusted for optimum screen voltage (it IS > critical), with the variable capacitor then controlling feedback...this > idea came from an early edition of "Hints & Kinks". > > One last thing: KNOW what it is you want to accomplish BEFORE you build it, > and then PLAN, PLAN, PLAN. I wanted to roll out an > "...as-close-to-1929-looking-as-possible" receiver, & decided upon the use > of as many vintage dials, parts, & tubes as were available then, i.e. a 224 > tuned RF amplifier, 224 tuned regenerative detector, 227 AF driver, and a > 245 final AF amplifier. Throughout the planning/building process, ALWAYS > lay the thing out with an eye to showing it off to your more discriminating > friends later, & you'll just naturally strive for neatness & a logical > lay-out, with no "haywire" in evidence...and you'll be surprised by the > absence of "nasty gotcha's" later on when you do this, too. > > I'm very pleased with my set, and just finished showing it off to vintage > aficiando Mike (VE3DKW) this past weekend. My design is based upon a piece > in a 1930 issue of QST. The construction of such a thing is a true > adventure---you're building a veritable time machine from a schematic drawn > up back when your mum & dad were probably just kids! The long-gone author > is reaching out to you in a timeless piece from an era when such endaevours > were still held in extremely high esteem, and when the toussle haired > practioners of same were regarded as wizards heralding-in a brave new world > of technology...gosh, it's an awful lot of fun, and those first signals > coming through your homebrewed creation will sound as clear and as > wonderful as anything you've ever encountered! > > Frustrating or not, you will learn much by building one of these gems, and > you will NOT regret it... > > ~73~ Eddy VE3CUI - VE3XZ > > > > ---------- > > From: Ken Gordon > > To: Edward Swynar VE3 CUI > > Subject: Re: GB> Regenerative receivers... > > Date: February 23, 1999 4:46 PM > > > > > Bill... > > > > > > Believe me, you haven't LIVED until you've built a reasonably-decent > > > regenerative receiver! > > > > > > I've found my 4-tube '29 replica rig to be, in many ways, actually more > > > complex than my superhet "Mate for the Mighty Midget"!!! > > > > > > Problems...? Many! Regrets...? NONE!!!!! > > > > Edward: > > > > If you have the time and inclination, we would be VERY pleased to hear > > about your '29 regen trials and tribulations. I think it would make > > excellent reading. > > > > Ken W7EKB > > > > From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 25 05:38:08 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id FAA09478 for ; Thu, 25 Feb 1999 05:38:08 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id EAA29998 for ; Thu, 25 Feb 1999 04:40:12 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id BAA28475 for glowbugs-outgoing; Thu, 25 Feb 1999 01:22:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from scaup.prod.itd.earthlink.net (scaup.prod.itd.earthlink.net [207.217.120.49]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id BAA28470 for ; Thu, 25 Feb 1999 01:22:52 -0800 (PST) Received: from rmccarty.earthlink.net (pool048-max6.ds9-ca-us.dialup.earthlink.net [209.178.5.148]) by scaup.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id BAA16770; Thu, 25 Feb 1999 01:21:55 -0800 (PST) From: "Roger A. McCarty" To: "Sandy W5TVW" , , , Subject: RE: GB> Regenerative receivers... Date: Thu, 25 Feb 1999 01:26:31 -0800 Message-ID: <000501be60a0$edb74f40$9405b2d1@rmccarty.earthlink.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 Importance: Normal In-Reply-To: <19990223012750.EQWG3839@LOCALNAME> X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >From a different perspective...., Has anyone had (good) luck with small regens? Any hints or tips/pointers? I am attempting to build 3 different units for more or less, portable operation. One uses a 2e32, a 2e36, and a 1s4. Another uses a 3a4, and the third will use a 6u6. I am having horrible luck so far. Has anyone successfully used a toroid rather than a full size coil form? Converted a design from a full size coil to a toroid? Hints or tips in this regard? Thanks Roger KD6CC From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 25 12:29:40 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA09688 for ; Thu, 25 Feb 1999 12:29:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA28568 for ; Thu, 25 Feb 1999 11:31:44 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA01769 for glowbugs-outgoing; Thu, 25 Feb 1999 08:09:16 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from tntech.edu (SYSTEM@gemini.tntech.edu [149.149.11.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA01764 for ; Thu, 25 Feb 1999 08:09:10 -0800 (PST) Received: from tetrode ([149.149.42.10]) by gemini.tntech.edu (PMDF V5.2-29 #30682) with SMTP id <01J85NSX1X9Y8WYDLL@gemini.tntech.edu> for glowbugs@piobaire.mines.uidaho.edu; Thu, 25 Feb 1999 10:08:53 CST Date: Thu, 25 Feb 1999 10:08:52 -0600 From: Conard Murray Subject: GB> Fw: More Titanic To: Glowbugs List Message-id: <00cd01be60d9$238d8700$0a2a9595@ece.tntech.edu> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V5.00.0810.800 X-Mailer: Microsoft Outlook Express 5.00.0810.800 Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit X-Priority: 3 X-MSMail-priority: Normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I am forwarding this from the qrp-l list. I think most of you will appreciate this info. Thanks to Paul for all his contributions! Conard ----- Original Message ----- From: Paul Harden To: Low Power Amateur Radio Discussion Sent: Wednesday, February 24, 1999 6:40 PM Subject: More Titanic >Gang, >Years ago when I was in the sub service, I read the book TITANIC that was >published in the early 1930's as all the law suits and court actions were >wrapping up. It included gobs of testimony from the surviving crew, >including the young radioman. It seems the contemporary stories have >omitted some pertinent facts, of interest to use "radiomen" anyway. > >In those days, the radiomen were not ships crew, but employees of the >radio company they hired and subscribed to. There were two major companies >that provided the equipment and operators: The Marconi Company in New York >City and Telefunken in Germany. The Titanic was subscribed to Marconi. >Shortly before the Titanic set to sea, there was a big flap about exchanging >weather and iceberg information between ships, that is, between these two >different companies. So Marconi Company issued an edict that any operator >who "talked" to a Telefunken ship would be immediately relieved of duty upon >his return. Telefunken, in turn, issued the same order to their operators. >Therefore, at the time of the Titanic, Marconi operators did not talk to >Telefunken operators and vice versa for fear of loosing their jobs. This >is why the Titanic SOS's went unanswered by the CALIFORNIA, a Telefunken >ship, which we know now was adrift for the night only miles away. The >CARPATHIA was a Marconi ship, and at midnight when the operator checked his >gear following some repairs, heard the SOS and was able to respond, even >though they were some distance away. > >The TITANIC's own transmitters were down earlier in the evening, and they >were restored about 10pm. The onboard ships owner, Ismay, (sp?) had >ordered the radioman to send all passenger traffic before they retired for >the evening, collecting weather reports, etc. According to the radioman's >testimony in this book, it was because Ismay wanted all the passenger >messages to be sent, as it was a novelty (The Titanic was the first >passenger ship built WITH a radioroom, not added on later), and it would >prove how fast the Titanic's Altantic passage truly was. He saw it as >advertising. So the huge backlog of passenger messages to family back home >took priority, and prevented them from copying the iceberg alerts until late >at night. When they did get the iceberg traffic, indicating nearby icebergs, >it was given to the Officer of the Deck, who decided not to wake the Captain >because it was late, even though against the Captain's standing orders. So >he doubled the lookouts instead. 45 minutes later ... well, that part of >the story you have no doubt heard by now! > >Also in those days, there were no requirements for ships to keep a radio >watch. They could work whatever hours they wished, because afterall, they >were NOT ships crew, but employees of Marconi or Telefunken. This is why >most ships had their radio gear turned off when the Titanic struck the >iceberg around midnight. There were also no public broadcasts of weather >information ... you had to get it (that is, pay for it) from either Marconi >or Telefunken. All of these things, and other factors, is what led to much >of what we know of communications today. The Coast Guard and Navy stations >that broadcast weather information in (formerly) CW, voice, digital and >WeFAX was all setup by congress as a perpetual public service as a direct >result of the Titanic. Establishing SOS protocols and emergency calling >and watch frequencies, manned 24 hours a day, is a result of the Titanic. >And Dept. of Commerce rules (later the FCC) that allow anyone to use a radio >(licensed or not) in an emergency, and making it illegal to NOT answer an >SOS, are all fall-out from the Titanic and the Marconi/Telefunken battles. >And making radioman a part of ships crew made them accountable to the >Captain of the ship, not someone thousands of miles away. > >I remember the author of this book said of the Titanic, it was an example >of what happens when everything that can go wrong does! And so many of the >lessons learned are still employed today and engrained into the format we >still use in a simple CW QSO ... namely, who are you? and who am I? now >required to be sent FIRST THING. > >BTW, I haven't seen the movie yet, so don't the spoil the ending for me :-) > >Just a little history lesson as I remember it, because I think hams and CW >ops are all aware we're the product of some long traditions. > >72, Paul NA5N > From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 25 13:17:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA09719 for ; Thu, 25 Feb 1999 13:17:29 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA02913 for ; Thu, 25 Feb 1999 12:19:36 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA02365 for glowbugs-outgoing; Thu, 25 Feb 1999 08:54:03 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f24.hotmail.com [207.82.250.234]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA02360 for ; Thu, 25 Feb 1999 08:54:00 -0800 (PST) Received: (qmail 2421 invoked by uid 0); 25 Feb 1999 16:53:13 -0000 Message-ID: <19990225165313.2420.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Thu, 25 Feb 1999 08:53:13 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: rmccarty@earthlink.net Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> RE: GB- Regenerative receivers... Date: Thu, 25 Feb 1999 08:53:13 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >From a different perspective...., > >Has anyone had (good) luck with small regens? Any hints or tips/pointers? I >am attempting to build 3 different units for more or less, portable >operation. One uses a 2e32, a 2e36, and a 1s4. Another uses a 3a4, and the >third will use a 6u6. I am having horrible luck so far. > >Has anyone successfully used a toroid rather than a full size coil form? >Converted a design from a full size coil to a toroid? Hints or tips in this >regard? > >Thanks > >Roger KD6CC I am working (on and off, very slowly) on a 1L4-1L4-3A4 regen. I have played around with the regen part using coils on a 3/4" acrylic form. I haven't tried toroids except in my solid state regen (the recent ARRL version liberally subbed with alternate parts) and I didn't like them. With the 1L4 I experimented with different tickler turns and spacing, feedback/throttle cap and screen grid potential and feel confident that the circuit will work smoothly. What exactly is the nature of your complaints? Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 25 17:07:25 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA09948 for ; Thu, 25 Feb 1999 17:07:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA26922 for ; Thu, 25 Feb 1999 16:09:36 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA04486 for glowbugs-outgoing; Thu, 25 Feb 1999 12:19:54 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f169.hotmail.com [207.82.251.55]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA04481 for ; Thu, 25 Feb 1999 12:19:49 -0800 (PST) Received: (qmail 17770 invoked by uid 0); 25 Feb 1999 20:18:56 -0000 Message-ID: <19990225201856.17769.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Thu, 25 Feb 1999 12:18:54 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Ghirardi SW Receiver Date: Thu, 25 Feb 1999 12:18:54 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO In the Ghirardi's "Radio Physics Course" (1932 edition) there is a diagram of a three tube SW receiver which has an interesting design. It is an RF-Regen-AF design (UX series tubes) but with only one coil plus tickler. The antenna connection goes directly to the grid of the first tube and the tuning coil is in the plate circuit. The coil is fed off one of the B+ taps through an RF choke. It is grounded at the "bottom" (B+ end) through a large value cap and connected at the top (which is also the plate of tube 1) to the grid of the regen tube through a relatively large cap. The rest of the circuit is pretty standard. Anyone ever tried one of these "hot" coil regens? Thoughts? Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Thu Feb 25 20:32:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA10091 for ; Thu, 25 Feb 1999 20:32:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA13916 for ; Thu, 25 Feb 1999 19:34:58 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA06836 for glowbugs-outgoing; Thu, 25 Feb 1999 15:45:28 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from home.gis.net (home.gis.net [208.218.130.20]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA06826 for ; Thu, 25 Feb 1999 15:45:12 -0800 (PST) Received: from blah (ppp47-232.gis.net [216.41.47.232]) by home.gis.net (8.8.8/8.8.8+djf) with ESMTP id SAA27895; Thu, 25 Feb 1999 18:44:23 -0500 (EST) Message-Id: <199902252344.SAA27895@home.gis.net> Reply-To: From: "Richard" To: "Brad Hernlem" , Subject: Re: GB> Ghirardi SW Receiver Date: Thu, 25 Feb 1999 18:29:29 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1162 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO With the antenna directly connected to the first stage grid, today it is known as an "E-Field Probe" input, requiring only a very short antenna, perhaps 6 to 12 feet long. The input impedance is very high. If you live near a broadcast station you may have trouble with cross-modulation. I have used E-Field Probes with great success at LF and VLF. Richard Brunner, AA1P, rbrunner@gis.net From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 10:29:45 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA10619 for ; Fri, 26 Feb 1999 10:29:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA13243 for ; Fri, 26 Feb 1999 09:32:07 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA14738 for glowbugs-outgoing; Fri, 26 Feb 1999 06:20:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA14733 for ; Fri, 26 Feb 1999 06:20:54 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id JAA23222 for ; Fri, 26 Feb 1999 09:21:35 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id JAA11663 for ; Fri, 26 Feb 1999 09:21:33 -0500 (EST) Date: Fri, 26 Feb 1999 09:21:31 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Headphone repair parts, numbers & prices Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! Here's the info on PhoneCo parts: 2 conductor tinsel cord, #H2092, $0.50/ft. Brown in color, US-made. If you really think you'd like 1000 ft., they'll sell it to you for $450, a savings of a nickel a foot. :) "Toothy" lugs: under 100, #LUG8, $0.10 @ in lots of 100, #LUG5, $0.08 @ These are captive lugs, not spades, and the hole in them is of an odd shape, like a horizontally-elongated capital "D" with the round end pointing back to the part that gets crimped; this allows you to clip off the end and make 'em into spades if needed. They work fine as captive lugs, and fit #6 screws well. Would have to be reamed a bit to clear a #8. They come in a kind of chain, head of one hooked to the tail of the next, but seperate easily with diagonal cutters. Stamped "AMP" on the back, and as Amp is in the lug, etc. business, that's probably the maker. Phone tips, #PIN, $0.50 @ Decent phone tips, seem to be turned rather than drawn. Outside is nickel-plated, inside appears bare brass which solders easier. The smaller-diameter portion is *solid" and the ends have a shallow point (perhaps 30 degrees) rather than a hemisphere. They also have three different types of crimp-around restraint for the cloth-covered cable, of which RESTC might be most useful, a kind of a "hook" lug that can be held under a #6 screw. All of 'em are $0.25 @. PhoneCo: Phone (608) 582-4124, Fax (608) 582-4593, web page http://www.phonecoinc.com email PHONECOINC@AOL.COM and plain mail 19813 East Mill Road P.O. Box 70 Galesville, WI 54630. Ask for a catalog when you order, they're handier than you might think--there are a lot of phone-type parts in the really early gear, especially carbon mics and the various mounting arms for 'em. Not to mention that the proper telephone really dresses up a "period" hamshack! 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 11:28:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA10651 for ; Fri, 26 Feb 1999 11:28:10 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA28109 for ; Fri, 26 Feb 1999 10:30:37 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA15182 for glowbugs-outgoing; Fri, 26 Feb 1999 07:07:16 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from scaup.prod.itd.earthlink.net (scaup.prod.itd.earthlink.net [207.217.120.49]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA15177 for ; Fri, 26 Feb 1999 07:07:13 -0800 (PST) Received: from rmccarty.earthlink.net (pool040-max6.ds9-ca-us.dialup.earthlink.net [209.178.5.140]) by scaup.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id HAA14908; Fri, 26 Feb 1999 07:07:00 -0800 (PST) From: "Roger A. McCarty" To: "Glowbugs@Piobaire. Mines. Uidaho. Edu" , "'HomeBrew'" Subject: GB> RE: Regen radiation Date: Fri, 26 Feb 1999 07:11:57 -0800 Message-ID: <000101be619a$5a29cfa0$8c05b2d1@rmccarty.earthlink.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 Importance: Normal In-Reply-To: <19990226043215.GPDP16078@LOCALNAME> X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I hope someday to share your bubbling enthusiasm. Right now I am fairly convinced the regen is merely an evil terrorist plot personally conjured up by the devil himself. And your all part of it :-) I mean, I can count the parts on two hands! and it just does not work. I have built some fairly sophisticated home-brew projects in my day, with very good results. And now this gull darn biscuit mashing electron confusing piece of...!*&!& (junk, what did you think?). Ah well, perhaps I am better suited for needlepoint, or paint by the numbers. And, I could have chosen a better time to quit smoking. Seriously, I am having fun, although there is a bit of black magic involved, I'm sure of it. I have one of the projects now working, but it cannot be considered a serious receiver. Far too unstable for the intended use as a portable glow bug. The intent is to get one of these working so as to use it for at least one contact on field day. I have 4 months to go. If I quit my job and farm out the kids....Hmmm, Perhaps I should shoot for field day 2000. Roger A. McCarty ARS KD6CC http://www.qsl.net/kd6cc Qrp-L #1555 Southern California Begin Re-post << I don't think I have ever gotten the satisfaction out of building anything, like I have gotten out of one-tube regenerative receivers! Once you are successful, they beckon one to do another! It is infectious! BEWARE! This in spite of the downright diabolic cantankerousness of the things when you are getting them going! 73, Sandy W5TVW>> End Repost From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 07:51:38 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id HAA10538 for ; Fri, 26 Feb 1999 07:51:37 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id GAA31051 for ; Fri, 26 Feb 1999 06:53:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id DAA13466 for glowbugs-outgoing; Fri, 26 Feb 1999 03:36:45 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp2.erols.com (smtp2.erols.com [207.172.3.235]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id DAA13461 for ; Fri, 26 Feb 1999 03:36:40 -0800 (PST) Received: from LOCALNAME (207-172-119-58.s58.tnt2.brd.erols.com [207.172.119.58]) by smtp2.erols.com (8.8.8/8.8.5) with SMTP id GAA29526; Fri, 26 Feb 1999 06:39:23 -0500 (EST) Message-Id: <199902261139.GAA29526@smtp2.erols.com> X-Sender: wmeara@pop.erols.com X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Fri, 26 Feb 1999 11:30:06 -0400 To: glowbugs@piobaire.mines.uidaho.edu, homebrew@qth.net, dcboatanchors@List-Server.net, BOATANCHORS@LISTSERV.TEMPE.GOV From: Bill Meara Subject: GB> New Web Page (N2CQR) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO They have finally developed Web Page software that is so user friendly that even I can carve out a place on the Web! (Netscape Navigator Gold) My site has some articles and pictures that I hope will be of interest to the BOATANCHOR-HOMEBREW-GLOWBUG community. Please take a look and let me know what you think: http://www.erols.com/wmeara 73 Bill N2CQR 73 de N2CQR Bill Meara, Falls Church, Virginia wmeara@erols.com G-QRP #7965 http://www.erols.com/wmeara From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 16:38:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA10803 for ; Fri, 26 Feb 1999 16:38:13 -0500 Received: from piobaire.mines.uidaho.edu (piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA07078 for ; Fri, 26 Feb 1999 15:40:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA18220 for glowbugs-outgoing; Fri, 26 Feb 1999 12:08:09 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo16.mx.aol.com (imo16.mx.aol.com [198.81.17.6]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA18214 for ; Fri, 26 Feb 1999 12:08:03 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo16.mx.aol.com (IMOv18.1) id JSHCa04336; Fri, 26 Feb 1999 15:06:02 -0500 (EST) Message-ID: <5afc1dfe.36d6feaa@aol.com> Date: Fri, 26 Feb 1999 15:06:02 EST To: rmccarty@earthlink.net, Glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: Re: GB> RE: Regen Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, gang: On 2-25, Brad wrote: >>The antenna connection goes directly to the grid of the first tube and the tuning coil is in the plate circuit.<< Sounds a little like the front end on the SW-2 National, sort of an untuned front end. But then it tries to accomplish some sort of tuning in it's plate circuit as the signal reaches the detector. In the late twenties, there was a four-tube receiver popular amongst hams called the "Bearcat", which utilized an untuned front-end, using a 24A pentode before the '30 detector, to limit radiation and buffer the detector from the random reactances and yoop on the antenna. ( yoop?) No mention in my artical of it being problematic with overload, i guess there weren't that many loud sigs on band. But don't lose patience with the idea of a portable regen for contesting, tho i would recommend a tunable butterworth filter for that front end. I have an artical from a 1938 QST describing a great "modern" one tube portable regen, using a 6F8G dual triode. I'll locate the month and page when i get home. Remember to keep the word "portable" in historical perspective: some of those portables were eighteen inches long and a foot high !! Lot's a' shielding and solid mechanical construction needed on the front lines. Wouldn't it be cool to have a '20s and '30s field day, with the wires and the trunk-mounted monsters and the pipes and suspenders, just like in the old pictures?? Well, i'm just rambling again, got to get back to work. Vry 73 Gary, wd4nka. From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 18:26:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA10859 for ; Fri, 26 Feb 1999 18:26:42 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA31597 for ; Fri, 26 Feb 1999 17:29:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA19196 for glowbugs-outgoing; Fri, 26 Feb 1999 13:42:21 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA19191 for ; Fri, 26 Feb 1999 13:42:13 -0800 (PST) Received: from indy1.indy.net (root@indy1.indy.net [199.3.65.5]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id QAA17269; Fri, 26 Feb 1999 16:28:21 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy1.indy.net (8.8.7/8.8.7) with SMTP id QAA13603; Fri, 26 Feb 1999 16:28:18 -0500 (EST) Date: Fri, 26 Feb 1999 16:28:16 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy1 To: "Roger A. McCarty" cc: "Glowbugs@Piobaire. Mines. Uidaho. Edu" , "'HomeBrew'" Subject: Re: GB> RE: Regen radiation In-Reply-To: <000101be619a$5a29cfa0$8c05b2d1@rmccarty.earthlink.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! One thing about a regen receiver: the detector is a VFO (or LO), and just as in a transmitter or a superhet or DC receiver, you cannot possibly make it *too* mechanically sturdy! C.F. Rockey suggests a good regen should be built to survive a 3-foot drop to the floor intact, and that's a proper degree of oomph to strive for. Make any part floppy and the darn thing will go a-glidin' every time you look at it crosswise. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 19:07:09 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA10881 for ; Fri, 26 Feb 1999 19:07:09 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA05847 for ; Fri, 26 Feb 1999 18:09:24 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA19830 for glowbugs-outgoing; Fri, 26 Feb 1999 14:34:05 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from www.durham.net (root@WWW.Durham.Net [198.73.212.119]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA19825 for ; Fri, 26 Feb 1999 14:33:58 -0800 (PST) Received: from Docusystems.durham.net (tserver2-4.durham.net [198.73.213.100]) by www.durham.net (8.8.8/8.8.7) with ESMTP id RAA02024; Fri, 26 Feb 1999 17:33:15 -0500 (EST) Message-Id: <199902262233.RAA02024@www.durham.net> From: "Edward Swynar VE3 CUI" To: "Roger A. McCarty" , "Glowbugs@Piobaire. Mines. Uidaho. Edu" , "'HomeBrew'" Subject: Re: GB> RE: Regen radiation Date: Fri, 26 Feb 1999 17:26:33 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Dear Roger OM... Lest you be tempted to chuck the darned thing into the nearest lake and be done with it, set the radio aside for a spell, and PLEASE---and this is NOT a plug for the publication, believe me---secure a copy of the C.F. Rockey book "SECRETS OF HOMEBUILT REGENERATIVE RECEIVERS"... I can't tell you how many times I said to myself, while reading it, "...Where has this book BEEN all my life?!" Hi Hi. The author masterfully explains the pratfalls & pitfalls of ANY negative "event" you've ever experienced---or have yet to experience, I'm sure!---with a regenerative receiver. While I'm hardly a "master" of the art, I used my own personal encounters as a guide herein, & the check sheet is positive, all in favour of Mr. Rockey. It's a darned good investment, and will save you much grief...this stuff IS, after all, supposed to be *FUN*, Roger, remember...? Hi Hi. ~73~ Eddy VE3CUI - VE3XZ ---------- > From: Roger A. McCarty > To: Glowbugs@Piobaire. Mines. Uidaho. Edu ; 'HomeBrew' > Subject: GB> RE: Regen radiation > Date: February 26, 1999 10:11 AM > > I hope someday to share your bubbling enthusiasm. Right now I am fairly > convinced the regen is merely an evil terrorist plot personally conjured up > by the devil himself. And your all part of it :-) > > I mean, I can count the parts on two hands! and it just does not work. I > have built some fairly sophisticated home-brew projects in my day, with very > good results. And now this gull darn biscuit mashing electron confusing > piece of...!*&!& (junk, what did you think?). > > Ah well, perhaps I am better suited for needlepoint, or paint by the > numbers. And, I could have chosen a better time to quit smoking. > > Seriously, I am having fun, although there is a bit of black magic involved, > I'm sure of it. I have one of the projects now working, but it cannot be > considered a serious receiver. Far too unstable for the intended use as a > portable glow bug. The intent is to get one of these working so as to use it > for at least one contact on field day. I have 4 months to go. If I quit my > job and farm out the kids....Hmmm, Perhaps I should shoot for field day > 2000. > > Roger A. McCarty ARS KD6CC > http://www.qsl.net/kd6cc > Qrp-L #1555 Southern California > > > > > Begin Re-post > << I don't think I have ever gotten the satisfaction out of building > anything, like I have gotten out of one-tube regenerative receivers! > Once you are successful, they beckon one to do another! It is > infectious! BEWARE! This in spite of the downright diabolic > cantankerousness of the things when you are getting them > going! > 73, > Sandy W5TVW>> > End Repost > From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 20:24:59 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA10921 for ; Fri, 26 Feb 1999 20:24:59 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA15010 for ; Fri, 26 Feb 1999 19:27:29 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA20709 for glowbugs-outgoing; Fri, 26 Feb 1999 15:51:49 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.ils.net (server1.ils.net [209.135.103.11]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA20704 for ; Fri, 26 Feb 1999 15:51:45 -0800 (PST) Received: from modem77.ils.net (modem77.ils.net [209.135.103.77]) by mail.ils.net (8.8.8/8.8.8) with SMTP id SAA27118; Fri, 26 Feb 1999 18:51:39 -0500 (EST) Date: Fri, 26 Feb 1999 18:51:39 -0500 (EST) Message-Id: <199902262351.SAA27118@mail.ils.net> X-Sender: toneri@mail.ils.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: Bill Meara , glowbugs@piobaire.mines.uidaho.edu, homebrew@qth.net, dcboatanchors@List-Server.net, BOATANCHORS@LISTSERV.TEMPE.GOV From: L & M Subject: Re: GB> New Web Page (N2CQR) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 11:30 AM 2/26/99 -0400, Bill Meara wrote: >They have finally developed Web Page software that is so user friendly that >even I can carve out a place on the Web! (Netscape Navigator Gold) > >My site has some articles and pictures that I hope will be of interest to >the BOATANCHOR-HOMEBREW-GLOWBUG community. Please take a look and let me >know what you think: > >http://www.erols.com/wmeara > >73 Bill N2CQR >73 de N2CQR >Bill Meara, Falls Church, Virginia >wmeara@erols.com G-QRP #7965 >http://www.erols.com/wmeara > Like your pages Bill. Will have to work you on AM sometime. 73...Mike VE3FGU ********************************************************** Mike (VE3FGU) & Lynda Toneri E-mail: toneri@ils.net Keswick, Ontario 26' Nonsuch #196 "Maxicat" Webpages:http://www.geocities.com/heartland/meadows/8218 http://www.angelfire.com/on/ve3fgu *********************************************************** From glowbugs-owner@piobaire.mines.uidaho.edu Fri Feb 26 23:16:52 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA11063 for ; Fri, 26 Feb 1999 23:16:52 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA17998 for ; Fri, 26 Feb 1999 22:19:25 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA23052 for glowbugs-outgoing; Fri, 26 Feb 1999 19:05:52 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo19.mx.aol.com (imo19.mx.aol.com [198.81.17.9]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA23047 for ; Fri, 26 Feb 1999 19:05:48 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo19.mx.aol.com (IMOv18.1) id 4UZKa20088 for ; Fri, 26 Feb 1999 21:58:03 +1900 (EST) Message-ID: <964af1b0.36d75f3b@aol.com> Date: Fri, 26 Feb 1999 21:58:03 EST To: glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: GB> One tube Regen Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello again. Just a follow-up on the one tube "modern" project that i mentioned earlier, just in case anybody is interested: June 1938 QST, pg 34. The tube used is a 6F8G, but no reason why a 6SN7 couldn't be used, or any other dual triode. I agree with Bobbi as she writes: >> One thing about a regen receiver: the detector is a VFO (or LO), and >> just as in a transmitter or a superhet or DC receiver, you cannot possibly >> make it *too* mechanically sturdy! << I got my first successful regen going when i finally figured out that it ought to be built like a VFO: Very shielded, Very solid, Very grounded, and keep the dern filament lines away from the grid leak!!! This 1938 one-tube rig holds a special place in my heart: it was the project where i learned not to grab the Baldies across the B+, especially when running a 120v a.c. power supply!! Mr. Hull would not have approved of my learning experiences. :-) vy 73 Gary, wd4nka From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 00:14:40 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA11093 for ; Sat, 27 Feb 1999 00:14:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA18885 for ; Fri, 26 Feb 1999 23:17:15 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA23740 for glowbugs-outgoing; Fri, 26 Feb 1999 20:05:52 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from ridgecrest.ca.us (root@owens.ridgecrest.ca.us [199.120.150.1]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA23735 for ; Fri, 26 Feb 1999 20:05:48 -0800 (PST) Received: from [208.138.143.15] (pm269.ridgenet.net [208.138.143.15]) by ridgecrest.ca.us (8.8.8/8.8.8) with SMTP id UAA08200 for ; Fri, 26 Feb 1999 20:04:46 -0800 (PST) Date: Fri, 26 Feb 1999 20:04:46 -0800 (PST) Posted-Date: Fri, 26 Feb 1999 20:04:46 -0800 (PST) Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: glowbugs@piobaire.mines.uidaho.edu From: herr@ridgecrest.ca.us (Michael Herr) Subject: Re: GB> RE: Regen radiation Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Seems like a few folks are having problems getting regens to perk along. One common problem, and it burned me a couple of times, is having the tickler coil wired wrong. the tickler must be wound in the same direction as the tank coil and fed properly. If my regen didn't start right off, the first thing I would try is to reverse the tickler leads. Virtually everytime it would start. Sure, as a 14 year old kid there would be other problems but I would start to hear stations. Just a thought. ...Mike WA6ARA From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 01:17:09 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA11127 for ; Sat, 27 Feb 1999 01:17:08 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA22917 for ; Sat, 27 Feb 1999 00:19:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA24254 for glowbugs-outgoing; Fri, 26 Feb 1999 21:08:34 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from emerald.indstate.edu ([139.102.15.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id VAA24248 for ; Fri, 26 Feb 1999 21:08:30 -0800 (PST) Received: from citrine.indstate.edu (citrine.indstate.edu [139.102.7.110]) by emerald.indstate.edu (8.8.8/8.8.8) with ESMTP id AAA24415 for ; Sat, 27 Feb 1999 00:10:28 -0500 (EST) Received: from CITRINE/SpoolDir by citrine.indstate.edu (Mercury 1.43); 27 Feb 99 00:07:49 utc-5 Received: from SpoolDir by CITRINE (Mercury 1.43); 27 Feb 99 00:07:19 utc-5 Received: from carpentt.indstate.edu (139.102.122.147) by citrine.indstate.edu (Mercury 1.43) with ESMTP; 27 Feb 99 00:07:10 utc-5 From: "Todd Carpenter" To: Subject: GB> Wee ciever Date: Sat, 27 Feb 1999 00:13:00 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Message-ID: <5695C1227D5@citrine.indstate.edu> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hey, does anyone recall a pair of one tube projects called: wee ciever and wee mitter? I started collecting the parts for this set but cant remember what i did with the plans. The tubes I already have: 3v4 and 6BN8. I cant remember what the variable caps were for the reciever. Am I going crazy in my young age or does anyone remember this project? Tnx. Todd. From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 12:23:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA11523 for ; Sat, 27 Feb 1999 12:23:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA29001 for ; Sat, 27 Feb 1999 11:26:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA01450 for glowbugs-outgoing; Sat, 27 Feb 1999 08:15:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc06.worldnet.att.net (mtiwmhc06.worldnet.att.net [204.127.131.41]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA01445 for ; Sat, 27 Feb 1999 08:15:54 -0800 (PST) Received: from oleta ([12.64.2.110]) by mtiwmhc06.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990227161508.BPSE9374@oleta> for ; Sat, 27 Feb 1999 16:15:08 +0000 Message-Id: <4.1.19990226205827.009c3590@postoffice.worldnet.att.net> Message-Id: <4.1.19990226205827.009c3590@postoffice.worldnet.att.net> X-Sender: davemed@postoffice.worldnet.att.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.1 Date: Fri, 26 Feb 1999 21:09:04 -0700 To: glowbugs@piobaire.mines.uidaho.edu From: David Medley Subject: GB> VT269/717A Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I recently came into possession of a National NC-173 radio. I was very surprised when I lifted the lid to see four door knob types tubes in there where either 6AG7 or 6AC7 tubes were supposed to be. On examination these turned out to be either VT269 or 717A tubes. I assume these are the same. On firing the radio up it turned out to be hotter than a stove. Better performance than I have experienced in any radio of that era. Does anyone out there know anything about this? Was it a mod dreamed up by somebody and perhaps published somewhere? Substitution of hot tubes usually doesn't do much for these old radios but this does seem to have given the old radio a shot in the arm. Regards David Medley KI6QE/7 aka VK2IMJ 1020 West Oleta Drive Tucson AZ 85704 Source of R390/390A hard to find parts. Check my Web Page at: <http://home.att.net/~davemed> You can also reach me by ICQ. My ICQ# is 28222998 From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 13:21:44 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA11559 for ; Sat, 27 Feb 1999 13:21:43 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA20416 for ; Sat, 27 Feb 1999 12:24:28 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA02138 for glowbugs-outgoing; Sat, 27 Feb 1999 09:14:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from ms1.nwla.com (root@ns.nwla.com [207.22.207.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA02133 for ; Sat, 27 Feb 1999 09:14:53 -0800 (PST) Received: from w5sum.nwla.com (ppp20.nwla.com [207.22.207.34]) by ms1.nwla.com (8.7.5/8.7.3) with SMTP id LAA24978; Sat, 27 Feb 1999 11:14:16 -0600 Message-Id: <199902271714.LAA24978@ms1.nwla.com> From: "Ronnie Hull" To: baswaplist@foothill.net Date: Sat, 27 Feb 1999 11:19:44 +0000 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: GB> B&W coil stockh CC: johnson@qth.net, glowbugs@piobaire.mines.uidaho.edu Priority: normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO howdy ya'll I need a complete B&W 3018. This is 1 1/4 inches in dia, #16. Working on a little project. Will need some other stuff too. I"m going through the junk box to find out what all I need ronnie W5SUM Ronnie Hull PO Box 8941 - Shreveport, La - 71148 "In the Occupied South" Ten-Ten #2019 AMI # 1057 From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 09:19:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id JAA11429 for ; Sat, 27 Feb 1999 09:19:27 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id IAA32011 for ; Sat, 27 Feb 1999 08:22:09 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id FAA29824 for glowbugs-outgoing; Sat, 27 Feb 1999 05:12:15 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id FAA29819 for ; Sat, 27 Feb 1999 05:12:11 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D4GEVQFR; Sat, 27 Feb 1999 08:11:00 EST To: Boatanchors@theporch.com, Glowbugs@piobaire.mines.uidaho.edu Date: Sat, 27 Feb 1999 06:05:41 -0600 Subject: GB> FMLA: A Reunion Message-ID: <19990227.070942.-512527.0.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Line-Breaks: 0-1,5-6,12-13,19-20,23-24,29-30,37-38,43-44,50-51,58-59,62-63,66-67,72-73,75-78,84-85,87-88 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO For John T. Frye "Tenns-Hut!" someone yelled from upstairs and Christie hopped to her penny-loafered feet. Frank followed her, so I did too, leaving only the new guy, who Frank met at a Boy Scout eagle court of honor, seated in our basement workshop. Frank is my friend who wants to take back 56-60 mc with a Five Meter Liberation Army, and Christie is a bodyguard. She and a skinny kid I call the WARmon stay with Frank to see no one keeps him from his sideline of doing their communications work. They seldom entertain in, or even allow visitors to enter my basement, but this was a special occasion - to them at least. The guy the WARmon ushered down the stairs looked like any other overweight guy in his late 50s to me. He was wearing a one piece jump suit and filling it up to about 260 to my eye, but Christie, who carries maybe 110 in her 5' 10' frame called him "general" and Frank greeted him warmly. I was introduced to one "General" Gerald Bishop, who nodded to me as he clasped Frank's outstretched hand. "Frank, its been a long time since you visited Parvoo back before Kennedy decided to give the country to the Nig.....What IN HELL is HE doing here?" General Jerry Bishop of the White Aryan Resistance was regarding one Carl Anderson, a lanky, bifocaled fellow in a three piece suit who was sitting on an old Collins case at the end of the workbench. "What's the matter, Carl?" he demanded of the calmly seated onlooker, "Run out of minorities to suck up to in Pennsylvania?" At this Frank stepped between them and called in some favors, many of which they both seemed to acknowledge they owed my dapper pal. Frank apologized for the staged meeting and said it was for a greater cause. He hoped they would let him explain. They deferred to Frank, as most everyone does, and he led them to another basement room where he uncovered an object so peculiar that I laughed out loud. I was alone in that. The two former chums, now regional directors of WAR and the ACLU respectively, were captivated by a plywood insect. It was about a meter long and sat on a three-wheel carriage. The two smiled, although not at one another, as Frank told how he came on the device when he bought the contents of Parvoo College's EE Lab at the school's closing. Frank planned to use the mechanized insect to lead a midnight parade for children at the next Dia De Los Muertos celebration at nearby Our Lady of Conspicuous Contrition. He reconstructed the motor of the mobile toy and found a latter day replacement for its burned out Delco LDR-25 photocell, but he was stumped, he admitted, by the fiber optic antennae. Since Carl and Jerry's names were inside, he asked them here to help the children. The former friends were enchanted. They quickly took the insect apart and Carl's phenomenal ability to remember details complemented General Bishop's command of technique. Jerry was one of the early retirees in Texas Instrument's first wave of down sizing. In about an hour with Frank they had the Lightening Bug device following a child's pumpkin flashlight obediently, and they even consented to take a ritual sip of Mountain Dew soft drink when the work was done. "What ever happened to that Jodi?" the general asked. "You know, the honeysuckle talking one we met in the heating pipe when she was sending Morse to her old man?" "She's in Philadelphia playing with grand kids number two and three, but she's meeting me at our place in Florida Monday," Carl said. "You ever get down there?" Frank and I and Christie and the WARmon saw them off in the general's 45-foot RV. He took the rebel flags off the front bumpers, signed them, and gave one to each of the bodyguards. Frank was staring at the back of the van as they drove away and I ventured, "I guess you've known them for a long time, huh?" "Everybody use to know them," he said, "but I don't recall either of them having the call W9EGV." ******Frank comes to Texas, Carl and Jerry go to Florida and Maj. Armstrong disappears in a puff of smoke. All sorts of strange things have happened in 25 field reports on the FMLA. You never know what will happen next, but the first 25 stories will be archived somewhere before I go down into the basement to gather material for the 10 more I have promised to forward.****** de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com fmla xxv Student of Tecraft, ICM, and Six Meters' golden age, 1956-58. From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 13:10:37 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA11551 for ; Sat, 27 Feb 1999 13:10:36 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA23900 for ; Sat, 27 Feb 1999 12:13:20 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA01973 for glowbugs-outgoing; Sat, 27 Feb 1999 09:04:29 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA01967 for ; Sat, 27 Feb 1999 09:04:26 -0800 (PST) Received: from wb8mhe (circ-ras2-4-cs-12.dial.bright.net [209.143.14.191]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id MAA11470; Sat, 27 Feb 1999 12:04:04 -0500 (EST) Message-ID: <004401be6273$2b010200$bf0e8fd1@wb8mhe> From: "Dick Blaney" To: , "David Medley" Cc: "Dick Blaney" Subject: Re: GB> VT269/717A Date: Sat, 27 Feb 1999 12:02:45 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi Dave & all, I think you'll find the original tubes were 6SG7s, and the 717s were a surplus item after WW2. A lot of those 717s found their way into BC348s. Really pepped them ole' rascals up. Very high transconductance, as I recall. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: David Medley To: glowbugs@piobaire.mines.uidaho.edu Date: Saturday, February 27, 1999 11:28 AM Subject: GB> VT269/717A >I recently came into possession of a National NC-173 radio. I was very >surprised when I lifted the lid to see four door knob types tubes in there >where either 6AG7 or 6AC7 tubes were supposed to be. On examination these >turned out to be either VT269 or 717A tubes. I assume these are the same. >On firing the radio up it turned out to be hotter than a stove. Better >performance than I have experienced in any radio of that era. Does anyone >out there know anything about this? Was it a mod dreamed up by somebody and >perhaps published somewhere? Substitution of hot tubes usually doesn't do >much for these old radios but this does seem to have given the old radio a >shot in the arm. >Regards >David Medley KI6QE/7 aka VK2IMJ >1020 West Oleta Drive >Tucson AZ 85704 >Source of R390/390A hard to find parts. Check my Web Page at: ><http://home.att.net/~davemed> >You can also reach me by ICQ. My ICQ# is 28222998 > From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 11:00:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA11482 for ; Sat, 27 Feb 1999 11:00:18 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA01211 for ; Sat, 27 Feb 1999 10:03:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA00779 for glowbugs-outgoing; Sat, 27 Feb 1999 06:54:59 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.digizen.net (mail.digizen.net [209.194.78.10]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id GAA00774 for ; Sat, 27 Feb 1999 06:54:56 -0800 (PST) Received: (qmail 7491 invoked from network); 27 Feb 1999 15:04:55 -0000 Received: from ppp3-102.digizen.net (HELO LOCALNAME) (209.194.78.102) by mail.digizen.net with SMTP; 27 Feb 1999 15:04:55 -0000 Message-ID: <36D82890.7785@digizen.net> Date: Sat, 27 Feb 1999 09:17:04 -0800 From: Charles Kadesch X-Mailer: Mozilla 2.01KIT (Win16; U) MIME-Version: 1.0 To: Todd Carpenter CC: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Wee ciever References: <5695C1227D5@citrine.indstate.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Todd Carpenter wrote: > > Hey, does anyone recall a pair of one tube projects called: wee ciever and > wee mitter? ... If I remember right the WeeCeiver is the one my son and I built. The article (I will try to find it) had it built in a "Sucrets" box and we did the same. The son has grown up and moved but I think he still has it. We copied a bunch of ham CW and foreign SWBC on it. Don't recall the WeeMitter though. -73 de Chas W3KC- From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 13:46:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA11631 for ; Sat, 27 Feb 1999 13:46:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA05558 for ; Sat, 27 Feb 1999 12:49:28 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA02543 for glowbugs-outgoing; Sat, 27 Feb 1999 09:40:36 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from socrates.nmia.com (socrates.nmia.com [198.59.166.170]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA02538 for ; Sat, 27 Feb 1999 09:40:33 -0800 (PST) Received: from plato.nmia.com(really [198.59.166.165]) by socrates.nmia.com via smail with smtp id for ; Sat, 27 Feb 1999 10:40:17 -0700 (MST) (Smail-3.2.0.104 1998-Nov-20 #18 built 1998-Dec-11) Date: Sat, 27 Feb 1999 10:40:16 -0700 (MST) From: To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> VT269/717A In-Reply-To: <4.1.19990226205827.009c3590@postoffice.worldnet.att.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO This is a 6AK5 in an octal base. A 4.3K Gm, 150V tube. No idea what the Gm is at 250V but may not last long at the higher voltage. Try 6AC7. They're 250V, 9K Gm. 73 - John W7ZFB 1400 Catron SE Albq, NM 87123 *********************************************************** * Homebrewer since 1947 CW BoatAnchors Norcal #930 * * BA CW freqs - 3578, 7050, 7118, 14050, 21050, 28050 * *********************************************************** From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 14:23:48 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA11672 for ; Sat, 27 Feb 1999 14:23:46 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA12622 for ; Sat, 27 Feb 1999 13:26:28 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA02932 for glowbugs-outgoing; Sat, 27 Feb 1999 10:15:41 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from orford.valley.net (orford.valley.net [198.115.160.32]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA02927 for ; Sat, 27 Feb 1999 10:15:38 -0800 (PST) Received: from lyme.VALLEY.NET (lyme.valley.net [198.115.160.11]) by orford.valley.net (2.5 Build 2639 (Berkeley 8.8.6)/8.8.4) with SMTP id NAA21276 for ; Sat, 27 Feb 1999 13:15:10 -0500 Date: Sat, 27 Feb 1999 13:15:10 -0500 Message-Id: <199902271815.NAA21276@orford.valley.net> Received: by lyme.VALLEY.NET (blitz.valley.net) via SMTP from plainfield-175.valley.net for glowbugs@piobaire.mines.uidaho.edu id <6886804> 27 Feb 99 13:16:57 EST X-Sender: Brad_Thompson@pop.valley.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: glowbugs@piobaire.mines.uidaho.edu From: Brad Thompson Subject: Re: GB> VT269/717A Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 09:09 PM 2/26/99 -0700, you wrote: >I recently came into possession of a National NC-173 radio. I was very >surprised when I lifted the lid to see four door knob types tubes in there >where either 6AG7 or 6AC7 tubes were supposed to be. On examination these turned out to be either VT269 or 717A tubes. I assume these are the same. >On firing the radio up it turned out to be hotter than a stove. Better >performance than I have experienced in any radio of that era. Does anyone out there know anything about this? Was it a mod dreamed up by somebody and perhaps published somewhere? Substitution of hot tubes usually doesn't do much for these old radios but this does seem to have given the old radio a shot in the arm. Hello-- IIRC, this was a popular post-WW II soup-up technique for older communications receivers; I first saw it mentioned in "Hints & Kinks". The VT269/717's "innards" later became the 6AK5, a seven-pin miniature pentode of enormous popularity in tube-era radars, communications gear and homebrew rigs. Note that the 717, 6SH7, 6SG7 (remote cutoff) pentodes use base code 8BK, which features two cathode connections: one for the cathode (pin 5) and one for the cathode and suppressor (pin 3). This configuration reduces cathode-lead inductance, making these tubes a little better at VHF than the popular 6SK7 and other base-code 8N pentodes, which use separate suppressor (pin 3) and cathode (pin 5) connections. If the receiver is operating stably, leave 'em in! 73, Brad AA1IP From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 16:26:37 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA11899 for ; Sat, 27 Feb 1999 16:26:37 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA08241 for ; Sat, 27 Feb 1999 15:29:22 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA04038 for glowbugs-outgoing; Sat, 27 Feb 1999 12:17:53 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA04033 for ; Sat, 27 Feb 1999 12:17:50 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id PAA04470 for ; Sat, 27 Feb 1999 15:18:21 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id PAA11468 for ; Sat, 27 Feb 1999 15:18:18 -0500 (EST) Date: Sat, 27 Feb 1999 15:18:17 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Ross Hull regen, June '31 QST Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! Just ran off a dozen copies of Ross Hull's article, "Putting the Pentode to Work," which describes a neat little 3-tube regen--tuned RF amp, det, pentode AF amp--of unique and practical construction. Have three requests for copies of the article. Anyone else? Costs ya postage, and I'll accept stamps; no need to send 'til you receive your copy. (I have an ulterior motive: I don't have time to build one up right now and I want to hear how well it works--very well, I suspect!) 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Sat Feb 27 20:11:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA12050 for ; Sat, 27 Feb 1999 20:11:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA23660 for ; Sat, 27 Feb 1999 19:14:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA05916 for glowbugs-outgoing; Sat, 27 Feb 1999 15:53:36 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc06.worldnet.att.net (mtiwmhc06.worldnet.att.net [204.127.131.41]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA05911 for ; Sat, 27 Feb 1999 15:53:31 -0800 (PST) Received: from LOCALNAME ([12.65.130.137]) by mtiwmhc06.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990227235221.CWQM28655@LOCALNAME>; Sat, 27 Feb 1999 23:52:21 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, From: Sandy W5TVW Subject: GB> Parts needed... Message-Id: <19990227235221.CWQM28655@LOCALNAME> Date: Sat, 27 Feb 1999 23:52:21 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello All... Looking for one or two 25K to 50K ohm adjustable power resistors (the ones with a slider) at 150-200 watts. Also a dual 10K ohm wirewound ganged potentiometer, 7-10 watts (The ones that are around 1-1/4 to 1-1/2" in diameter) with a standard 1/4" shaft at least 1/2-3/4" long. Anything out there in a junkbox someplace. Will buy or trade. 73, E. V. Sandy Blaize, W5TVW "Boat Anchors collected, restored, repaired, traded and used!" 417 Ridgewood Drive Metairie, LA., 70001 ********* W A N T E D ! ! W A N T E D ! !********* ****** Transmitter/Receiver RT-46/TRC-10 ****** ********* Hallicrafters SR-75 Transceiver ******** ********* Hallicrafters HT-44 Transmitter ******** From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 28 20:22:36 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA12901 for ; Sun, 28 Feb 1999 20:22:35 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA00732 for ; Sun, 28 Feb 1999 19:25:40 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA17306 for glowbugs-outgoing; Sun, 28 Feb 1999 15:52:09 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from emerald.indstate.edu ([139.102.15.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA17301 for ; Sun, 28 Feb 1999 15:52:03 -0800 (PST) Received: from citrine.indstate.edu (citrine.indstate.edu [139.102.7.110]) by emerald.indstate.edu (8.8.8/8.8.8) with ESMTP id SAA21508 for ; Sun, 28 Feb 1999 18:54:08 -0500 (EST) Received: from CITRINE/SpoolDir by citrine.indstate.edu (Mercury 1.43); 28 Feb 99 18:51:29 utc-5 Received: from SpoolDir by CITRINE (Mercury 1.43); 28 Feb 99 18:51:28 utc-5 Received: from carpentt.indstate.edu (139.102.122.147) by citrine.indstate.edu (Mercury 1.43) with ESMTP; 28 Feb 99 18:51:26 utc-5 From: "Todd Carpenter" To: "glowbugs" Subject: GB> single tube projects Date: Sun, 28 Feb 1999 18:57:25 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Message-ID: <59419A41D47@citrine.indstate.edu> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hey, I am still looking for my schematics for the one tube xmtr and receiver project. I thought the set was called the Wee ciever and Wee mitter projects. Actually i dont care which ones i build. I want a one tube xmitter and reciever project. I have 3v4, 6aq5 and 6bn8 tubes, not to mention a bunch off of an old tube tv chassis. Any suggestions? I will also need some sort of power supply that isnt based on batteries. tnx. Todd. =================================== Todd M. Carpenter President ISUARC Member: WVARA, THRC, GQRP, INQRP, ARCI From glowbugs-owner@piobaire.mines.uidaho.edu Sun Feb 28 20:43:50 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA12915 for ; Sun, 28 Feb 1999 20:42:29 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA05968 for ; Sun, 28 Feb 1999 19:45:32 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA17611 for glowbugs-outgoing; Sun, 28 Feb 1999 16:22:01 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from www.durham.net (root@WWW.Durham.Net [198.73.212.119]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA17605 for ; Sun, 28 Feb 1999 16:21:55 -0800 (PST) Received: from Docusystems.durham.net (tserver3-18.durham.net [198.73.213.146]) by www.durham.net (8.8.8/8.8.7) with ESMTP id TAA11632 for ; Sun, 28 Feb 1999 19:21:07 -0500 (EST) Message-Id: <199903010021.TAA11632@www.durham.net> From: "Edward Swynar VE3 CUI" To: Subject: GB> Fw: Returned mail: Cannot send message within 5 days Date: Sun, 28 Feb 1999 19:20:22 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_01BE634F.62CB2800" Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO This is a multi-part message in MIME format. ------=_NextPart_000_01BE634F.62CB2800 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Does anyone know how to contact the English chap who was looking for a 6GW8 tube here about a week ago...? My message to him keeps bouncing back (attach.)... Tnx& 73, de Eddy VE3CUI - VE3XZ ---------- > From: Mail Delivery Subsystem > To: gswynar@mail.durham.net > Subject: Returned mail: Cannot send message within 5 days > Date: February 28, 1999 6:13 PM > > The original message was received at Tue, 23 Feb 1999 18:08:47 -0500 (EST) > from tserver3-9.durham.net [198.73.213.137] > > ----- The following addresses had permanent fatal errors ----- > > > ----- Transcript of session follows ----- > 451 ... mcmail.no-spam.com: Name server timeout > Message could not be delivered for 5 days > Message will be deleted from queue > ------=_NextPart_000_01BE634F.62CB2800 Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Reporting-MTA: dns; www.durham.net Arrival-Date: Tue, 23 Feb 1999 18:08:47 -0500 (EST) Final-Recipient: RFC822; crshaw@mcmail.no-spam.com Action: failed Status: 4.4.7 Last-Attempt-Date: Sun, 28 Feb 1999 18:13:19 -0500 (EST) ------=_NextPart_000_01BE634F.62CB2800 Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Return-Path: Received: from Docusystems.durham.net (tserver3-9.durham.net [198.73.213.137]) by www.durham.net (8.8.8/8.8.7) with ESMTP id SAA29130 for ; Tue, 23 Feb 1999 18:08:47 -0500 (EST) Message-Id: <199902232308.SAA29130@www.durham.net> From: "Edward Swynar VE3 CUI" To: Subject: 6GW8 TUBE... Date: Tue, 23 Feb 1999 18:08:00 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Dear Colin OM... Did you ever find your 6GW8 tube...? I have one here that's a "pull" from a TV set---it's a bit dirty, but both sections test OK on the tube tester...best of all, it's yours, mate, FREE for the asking... Pass your address on to me, & promise you'll build up the transmitter (I constructed the matching receiver a couple of years back, & am absolutely THRILLED with the result---I know you will be, too...). So, OM...wat say? ~73~ Eddy VE3CUI - VE3XZ ------=_NextPart_000_01BE634F.62CB2800-- From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 1 04:23:49 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id EAA13216 for ; Mon, 1 Mar 1999 04:23:49 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id DAA23108 for ; Mon, 1 Mar 1999 03:26:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id AAA22279 for glowbugs-outgoing; Mon, 1 Mar 1999 00:09:49 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mx.seanet.com (dns2.seanet.com [199.181.164.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id AAA22274 for ; Mon, 1 Mar 1999 00:09:45 -0800 (PST) Received: from seanet.com (h3.dialup.seanet.com [207.12.129.99]) by mx.seanet.com (8.8.8/Seanet-8.7.3) with ESMTP id AAA04958 for ; Mon, 1 Mar 1999 00:08:55 -0800 (PST) Message-ID: <36DA4DDE.17D568CD@seanet.com> Date: Mon, 01 Mar 1999 00:20:46 -0800 From: Jim Bowman X-Mailer: Mozilla 4.04 [en] (Win95; U) MIME-Version: 1.0 To: GLOWBUGS LIST Subject: GB>PENCIL TUBES Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Greetings to the list. I have two types of pencil tubes made by Raytheon. They are approx 1-1/2 inch long, and about 3/8 inch diameter. Both have 8 solder leads about 1-3/4 long. One is a type CK636 and the other is a CK637. Anybody have any specs on these? Thanx, Jim W7HPK jimbowman@seanet.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 1 10:25:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA13479 for ; Mon, 1 Mar 1999 10:25:41 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA08155 for ; Mon, 1 Mar 1999 09:28:59 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA24705 for glowbugs-outgoing; Mon, 1 Mar 1999 06:15:08 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA24700 for ; Mon, 1 Mar 1999 06:15:04 -0800 (PST) Received: from wpi.WPI.EDU (jski@wpi.WPI.EDU [130.215.24.6]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA17607 for ; Mon, 1 Mar 1999 09:14:53 -0500 (EST) Received: (from jski@localhost) by wpi.WPI.EDU (8.9.3/8.9.3) id JAA29286 for glowbugs@piobaire.mines.uidaho.edu; Mon, 1 Mar 1999 09:14:53 -0500 (EST) From: "Joseph M. Krzeszewski" Message-Id: <199903011414.JAA29286@wpi.WPI.EDU> Subject: GB> More pencil tubes To: glowbugs@piobaire.mines.uidaho.edu (glowbugs reflector) Date: Mon, 1 Mar 1999 09:14:53 -0500 (EST) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO So long as someone is digging through the manuals looking for the specs on pencil tubes, I have a few (30-50) of type CK5744. Sounds the same as the other types mentioned here, but mine only has 5 leads. Triode? Low voltage B+? I sure hope so. I would like to make a tube type transmiter reciever pair built on/in/around a pair of Altoids tins. That should show up those sand state guys... -- Joe -- Joseph M. Krzeszewski Mechanical Engineering and stuff N5LHF Jack of All Trades, Master of None... Yet jski@wpi.edu -= CCC Shop Student Hardware Specialist =- From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 03:17:39 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA14192 for ; Tue, 2 Mar 1999 03:17:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA31364 for ; Tue, 2 Mar 1999 02:21:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA06222 for glowbugs-outgoing; Mon, 1 Mar 1999 23:03:48 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc06.worldnet.att.net (mtiwmhc06.worldnet.att.net [204.127.131.41]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA06215 for ; Mon, 1 Mar 1999 23:03:44 -0800 (PST) Received: from worldnet.att.net ([12.65.131.41]) by mtiwmhc06.worldnet.att.net (InterMail v03.02.07 118 124) with ESMTP id <19990302070228.FODH13305@worldnet.att.net> for ; Tue, 2 Mar 1999 07:02:28 +0000 Message-ID: <36DAE429.A0EFAFD@worldnet.att.net> Date: Tue, 02 Mar 1999 01:02:01 +0600 From: Ralph Hartwell Reply-To: ralph.hartwell@worldnet.att.net Organization: The Energy Machine X-Mailer: Mozilla 4.5 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 CC: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Regennie chokes... References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > In at least one receiver shown in the 1929 section of the book, mention is > made of using a Ford spark coil secondary as the choke. Suddenly it dawned > on me that we could use ignition spark coils for that purpose. I > know that most ignition systems nowadays dont'use an ignition coil > anymore, but any decent auto parts store should still be able to get them > for older cars. > > Does anyone here know what the actual value of that might be? One of the folks on my TESLA-2 list who is jamming 5 KW into the primary of high performance ignition coils says that the inductance measures about 0.72 H. Those coils have a lot of open magnetic circuit in them. I would not expect that the inductance would be too high, or the coil would not fire at a fast enough rate for modern engines. Oh yes, he gets about 30 cm of spark from his coil. -- Ralph W5JGV ICQ 8514638 ralph.hartwell@worldnet.att.net http://home.att.net/~ralph.hartwell Home of the Rife Biomedical Research Web Ring voice - 504-733-9281 fax - 504-733-9334 (also voice mail) From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 1 16:03:30 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA13674 for ; Mon, 1 Mar 1999 16:03:26 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA17890 for ; Mon, 1 Mar 1999 15:06:38 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA28117 for glowbugs-outgoing; Mon, 1 Mar 1999 11:35:29 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom18.netcom.com (tomrice@netcom18.netcom.com [192.100.81.131]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA28112 for ; Mon, 1 Mar 1999 11:35:25 -0800 (PST) Received: (from tomrice@localhost) by netcom18.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id LAA02779; Mon, 1 Mar 1999 11:34:52 -0800 (PST) From: "Tom R. Rice" Message-Id: <199903011934.LAA02779@netcom18.netcom.com> Subject: GB> ceramic sockets on regens: one last question..... To: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) Date: Mon, 1 Mar 1999 11:34:52 -0800 (PST) Cc: boatanchors@sco.theporch.com (boatanchors list) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO One thing still bothers me about this ceramic-socket- on-regens issue: The need for a _quality_socket_ (read ceramic) has been well argued, but, since I've never seen any ceramic-based receiving tubes (only a few xmitting types), why does it matter? Are we saying that the Bakelite used in old tube bases is of better RF quality than that used in sockets? Inquiring minds want to know....... 73 de WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 1 16:26:04 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA13692 for ; Mon, 1 Mar 1999 16:26:03 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA31980 for ; Mon, 1 Mar 1999 15:29:21 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA28519 for glowbugs-outgoing; Mon, 1 Mar 1999 12:05:59 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd123.hotmail.com [207.82.252.187]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA28512 for ; Mon, 1 Mar 1999 12:05:54 -0800 (PST) Received: (qmail 16030 invoked by uid 0); 1 Mar 1999 20:04:47 -0000 Message-ID: <19990301200447.16029.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Mon, 01 Mar 1999 12:04:47 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Regens: How much AF gain? Date: Mon, 01 Mar 1999 12:04:47 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO How much audio gain is appropriate (necessary?/ typical?) for regen sets? I did some comparisons this weekend between a 3A4 and a 1L4 using a 45V supply and found that I couldn't get more than about 26 dB gain from either and that the 1L4 was no worse than the 3A4 (so why use the more filament current demanding 3A4). This was with a small 100K:1K transformer on the plate and the HS-33 headset on the secondary. What are typical dBm numbers for the audio exiting the regen stage of a tube based regen? Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 1 22:29:37 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA14025 for ; Mon, 1 Mar 1999 22:29:36 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA27804 for ; Mon, 1 Mar 1999 21:33:00 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA02475 for glowbugs-outgoing; Mon, 1 Mar 1999 17:54:31 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo16.mx.aol.com (imo16.mx.aol.com [198.81.17.6]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA02470 for ; Mon, 1 Mar 1999 17:54:25 -0800 (PST) From: EZela57383@aol.com Received: from EZela57383@aol.com by imo16.mx.aol.com (IMOv18.1) id NWGIa18835 for ; Mon, 1 Mar 1999 20:52:58 +1900 (EST) Message-ID: <57a4ab95.36db447a@aol.com> Date: Mon, 1 Mar 1999 20:52:58 EST To: glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: GB> Wanted: Gonset G-50 power xfmr/parts rig Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 for Windows 95 sub 64 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Wanted !!!!! Need a power transformer from a Gonset G-50 6 meter AM transceiver.... Will also purchase a G-50 parts rig with working xfmr. KA8GEF From jgindc@erols.com Mon Mar 1 22:14:04 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA14014 for ; Mon, 1 Mar 1999 22:14:03 -0500 Received: from smtp4.erols.com (smtp4.erols.com [207.172.3.237]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA01748 for ; Mon, 1 Mar 1999 21:17:29 -0500 (EST) Received: from jg-hobart (207-172-182-130.s130.tnt19.brd.erols.com [207.172.182.130]) by smtp4.erols.com (8.8.8/smtp-v1) with SMTP id VAA22631 for ; Mon, 1 Mar 1999 21:17:27 -0500 (EST) Message-ID: <004001be6452$d1a4ffe0$82b6accf@jg-hobart> From: "John Gainsborough" To: "Joseph M. Krzeszewski" Subject: Re: GB> More pencil tubes Date: Mon, 1 Mar 1999 21:17:25 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Status: RO Joe, According to "Tube Lore" : AKA CK1619CX - T3 flat press subminiature; UHF hi-mu tride, heater 6.3v at 200mA; mu 70; variant 6151. Regards, John, KM6LJ/W3 -----Original Message----- From: Joseph M. Krzeszewski To: glowbugs reflector Date: Monday, March 01, 1999 9:27 AM Subject: GB> More pencil tubes >So long as someone is digging through the manuals looking for the specs on >pencil tubes, I have a few (30-50) of type CK5744. Sounds the same as the >other types mentioned here, but mine only has 5 leads. Triode? Low voltage >B+? I sure hope so. I would like to make a tube type transmiter reciever >pair built on/in/around a pair of Altoids tins. That should show up those >sand state guys... > >-- Joe > >-- >Joseph M. Krzeszewski Mechanical Engineering and stuff >N5LHF Jack of All Trades, Master of None... Yet >jski@wpi.edu -= CCC Shop Student Hardware Specialist =- From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 1 23:56:10 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA14071 for ; Mon, 1 Mar 1999 23:56:10 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA00764 for ; Mon, 1 Mar 1999 22:59:36 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA03447 for glowbugs-outgoing; Mon, 1 Mar 1999 19:37:34 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA03442 for ; Mon, 1 Mar 1999 19:37:30 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id WAA11586; Mon, 1 Mar 1999 22:37:45 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id WAA17020; Mon, 1 Mar 1999 22:37:40 -0500 (EST) Date: Mon, 1 Mar 1999 22:37:38 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> 1935 "Radio Amateur Newcomer" Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Gang! Just an enquiry; I had a few more of the 1935 Frank C. Jones/"Radio" magazine booklet, "The Radio Amateur Newcomer" reprinted. Is there anyone left who wanted a copy but hasn't got one? Only did ten--a local fellow wanted one and it's a little more cost-effective to do several at a time. 64 pp, 8.5" x 11", several decent little receivers, a few transmitters, some decent dope on ham radio as it used to was. Not a perfect repro but the schematics and text are very readable and the photos aren't too bad. Comes with a 2-sided loose sheet giving American and International Morse plus some other useful info on one side, and a prewar prefix list on the other (which makes modern ham work more fun--AC4 rates a cry of delight, not a yawn: it's Tibet and not the mid-South!). That's how the original came to me, and it's a good combination. Anyway, if you want one, let me know. Price will likely work out to $13.50 including Priority Mail shipping in the US, and about the same for plain mail outside the US. Add another three dollars for Global Priority Mail for rapid international delivery. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From cwest@xmission.com Tue Mar 2 00:13:59 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA14082 for ; Tue, 2 Mar 1999 00:13:58 -0500 Received: from mail.xmission.com (mail.xmission.com [198.60.22.22]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA31128 for ; Mon, 1 Mar 1999 23:17:11 -0500 (EST) Received: from [166.70.7.248] (helo=[166.70.7.248]) by mail.xmission.com with esmtp (Exim 2.05 #1) id 10Hgc9-0005TH-00 for jski@wpi.edu; Mon, 1 Mar 1999 21:17:02 -0700 X-Sender: cwest@mail.xmission.com Message-Id: In-Reply-To: <199903011414.JAA29286@wpi.WPI.EDU> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: "Joseph M. Krzeszewski" From: Dexter Francis Subject: Re: GB> More pencil tubes Date: Mon, 1 Mar 1999 21:17:02 -0700 Status: RO >So long as someone is digging through the manuals looking for the specs on >pencil tubes, I have a few (30-50) of type CK5744. Sounds the same as the >other types mentioned here, but mine only has 5 leads. Triode? Low voltage >B+? I sure hope so. I would like to make a tube type transmiter reciever >pair built on/in/around a pair of Altoids tins. That should show up those >sand state guys... > >-- Joe > >-- >Joseph M. Krzeszewski Mechanical Engineering and stuff >N5LHF Jack of All Trades, Master of >None... Yet >jski@wpi.edu -= CCC Shop Student Hardware Specialist =- The CK5744 is a Triode. Amplifier/HF Oscillator. 6.3 Volt, 200 ma. Filament. Pinout is the same a the CK512AX; F-/G3, G1, F+ G3, G2, P The dot is the plate end. 250 Volts max plate, 4.2 ma max plate current. -df Thank you for contacting us! Visit our Web Site at: http://www.xmission.com/~cwest/ CWest - P.O. Box 22443 SLC, UT 84122 From sparks-owner@piobaire.mines.uidaho.edu Tue Mar 2 01:51:33 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA14132 for ; Tue, 2 Mar 1999 01:51:32 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA13041 for ; Tue, 2 Mar 1999 00:54:53 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA04735 for sparks-outgoing; Mon, 1 Mar 1999 21:52:48 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA04730 for ; Mon, 1 Mar 1999 21:52:45 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 1 Mar 1999 21:52:44 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: sparks@piobaire.mines.uidaho.edu Subject: SPARKS> Activity... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-sparks@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I apologize for the major hiatus in activity here on the 600 meter subject. As soon as I get finished with a major legal battle I and my family are having with an insurance company concerning the accident in which I was injured about 2 years ago, I will be back at it. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 02:07:45 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA14143 for ; Tue, 2 Mar 1999 02:07:44 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA26149 for ; Tue, 2 Mar 1999 01:10:46 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA04781 for glowbugs-outgoing; Mon, 1 Mar 1999 21:55:44 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA04776 for ; Mon, 1 Mar 1999 21:55:41 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 1 Mar 1999 21:55:41 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> FW: DX-100 Audio, revisited (fwd) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Thought I would forward this on to the list in case you haven't seen it. I though it was interesting. Ken W7EKB ----------------------------------------------------------------------------- Hi Gang, Many of you were extremely interested and helpful a few weeks ago when I reported on the audio distortion I was experiencing with my DX-100B. I'm grateful for all the help. The transmitter is now working as well as it's likely to ever work. Because of all the interest, I thought it would be worthwhile to report on what I did to my DX-100B. Maybe what I learned will help someone else in their restoration efforts. The original problem was that the audio was very, very unpleasant. Thinking that this was simply age related component deterioration, I rebuilt the audio chain. Even after I rebuilt the audio chain, however, the audio still wasn't very good. By "rebuilt", I mean that I replaced all the carbon resistors with metal film, replaced the paper caps with mylar, and checked tubes. Nothing fancy. The only "improvements" I made at this time were well known ones: Input grid resistor R5 was increased to 1M, coupling caps C11 and C13 were increased by about 4X (I wanted more bass, not excessive, muddy bass), and cathode bypass caps C7, C6, and C8 were increased to 4.7uF. When I went on the air with the rebuilt audio, I learned it sounded better than it had, and in fact was in the 90th percentile of DX-100s, but it still wasn't very nice. This caused me to haul the boatanchor back to the work bench (one of about a dozen round trips it made during this exercise). Here then, is what I did that boosted the local rating of my DX-100B from the 90th percentile to the 99th percentile of audio quality. First, I removed R14 and R15, the 1K grid resistors tied to the 1625 modulator tubes. This is a well known change. It greatly reduces the waveform distortion when the 1625 grids are driven positive. (They shouldn't ever go positive, but if they do, you don't want any more distortion than absolutely necessary.) I also removed the .02 uF cap across the secondary of the modulation transformer. This is another relatively well known change. Two observations: The typical "talk back" from the modulation transformer went away completely. Very disconcerting! I have been used to this sound for 37 years! Also, there is now *significant* audio energy available well beyond 12 Kc. Talk about wiiiiiiiide! BTW: There are some reports of the modulator going unstable with this cap removed. I haven't experienced it with this transmitter .... yet. I'm not yet totally comfortable operating without the cap; I may install a .005 or .01 before I button the transmitter back up. Even with almost all of the "accepted" changes, the audio reports weren't entirely positive. I had reports of their being some raspiness on the audio and of some "popping" noises on voice peaks. The one remaining change, of those that are widely recommended, was to fix the 1625 modulator bias at -35 Volts by way of a zener diode between point "J" on the interstage transformer T3 and ground. The 35 Volt zener cured the popping noise (I can explain why, if anyone is interested), so this was a step in the right direction. However, once the zener clamped the bias at -35 Volts, I was unable to modulate to 100% without significant distortion showing up. And this made sense, once I thought about it. Remember the 1625s operate AB1. They aren't really supposed to draw grid current. Well, with the grids clamped at -35 Volts, that limited the amplitude of the audio signal that could be applied to them to 70 V p-p. Any larger signal and the grids conduct and that results in a very distorted waveform. So, keeping the tubes operating AB1, just isn't sufficient to do any better than about 70% modulation. Too, there was still that pesky raspiness on the audio that I kept hearing about. What I did to fix the raspiness and the less-than-100%-modulation problem was to add an unbypassed, 100 Ohm cathode resistor to the 1625 circuit (keeping the 35 Volt zener previously added to the grid circuit). This did two things, both useful: First, it shifted the bias more negative by about 5 Volts. Now, with -40 V on the grids, the 1625s could see an 80 V p-p grid signal and this is sufficient to come very close to 100% modulation. Second, since the cathode resistor is unbypassed, its presence provides some negative feedback. This feedback lowers the source impedance seen looking back from the primary of modulation transformer T4. This reduction in source impedance seems to be a Real Good Thing in that it helps the transformer more accurately reproduce the applied waveform. In any event, once I added this resistor, the audio reports got a *lot* more favorable. In summary, I am pleased (and relieved) to report that with the minor tweaks I did when I rebuilt the audio chain initially, plus the generally accepted changes I detailed above, plus the addition of the cathode resistor to the 1625s, that the audio reports are now uniformly complimentary. No one accuses me of running a broadcast transmitter, mind you, and I wasn't after that kind of audio from a DX-100. I wanted audio that was pleasant to listen to and that seems to be what I have achieved. I hope this overly long narrative helps someone else with their DX-100. I'll be glad to respond privately or on the list to any comments or questions. 73, Jim - K4CCF (formerly KM6NK, WA4KOO, WN4KOO) Looking for original QSL cards from K4CCF http://www.mindspring.com/~johnmb/radiorm1.htm From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 02:47:25 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA14166 for ; Tue, 2 Mar 1999 02:47:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA03520 for ; Tue, 2 Mar 1999 01:50:45 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA05423 for glowbugs-outgoing; Mon, 1 Mar 1999 22:34:55 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo19.mx.aol.com (imo19.mx.aol.com [198.81.17.9]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA05416 for ; Mon, 1 Mar 1999 22:34:50 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo19.mx.aol.com (IMOv18.1) id 5MJNa20089 for ; Tue, 2 Mar 1999 01:33:12 -0500 (EST) Message-ID: <115a38b4.36db8628@aol.com> Date: Tue, 2 Mar 1999 01:33:12 EST To: glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: Re: GB> Regens: How much AF gain? Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Greetings: In a message dated 99-03-01 15:06:41 EST, Brad writes: << How much audio gain is appropriate (necessary?/ typical?) for regen sets? >> I would use the same criteria used in the more earthy days of the Art, which is * whatever you're comfortable with* . Remember those projects which gave reference to " sufficient headphone volume" or " more than enough to drive a headset"? Those projects usually did. I never did know the actual db. or such, but if a weak signal on my regen sounded weak on my Drake 2-A ( which was my universal standard by gum!) on the same antenna, i was satisfied. On a related subject: Some time ago there was a posting from BA Bob which i found fairly consistent as regards the issue of audio control in regen sets: Control it from the front end. I had a couple commercial regen sets : a 1950's Knight and a 1933 Schaum ( German, with the wierd based tubes ) which gave Hi-Fi performance, great selectivity, and the volume was indeed controlled at the RF gain. Perhaps this was an effort to minimize the inherent microphonics of the detector. I'm just guessing. As long as the key is down, my thanx to Conard, for that posting about radio protocol and traditions orbiting the Titanic disaster. It's neat to know the history imbedded behind the approach and technique i so automatically apply, and never give much thought to. Just shows to go that the things we do can affect the lives of many. vry 73 Gary, wd4nka From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 03:01:43 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA14177 for ; Tue, 2 Mar 1999 03:01:43 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA08363 for ; Tue, 2 Mar 1999 02:04:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA05774 for glowbugs-outgoing; Mon, 1 Mar 1999 22:50:26 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id WAA05766 for ; Mon, 1 Mar 1999 22:50:22 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 1 Mar 1999 22:50:22 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Regennie chokes... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Should you be so inclined to build a regenerative receiver like the OT did, you will find reference to a large choke, somewhere on the order of 500 to 1000 Henries. I have been mystified, up until now, about how one could get such a choke these days. Well, a few minutes ago, I was re-reading my copy of the Lindsay book "Those Great Old Handbook Receivers" and discovered a couple of things I missed the first time through. In at least one receiver shown in the 1929 section of the book, mention is made of using a Ford spark coil secondary as the choke. Suddenly it dawned on me that we could use ignition spark coils for that purpose. I know that most ignition systems nowadays dont'use an ignition coil anymore, but any decent auto parts store should still be able to get them for older cars. Does anyone here know what the actual value of that might be? I'll bet it is pretty big! Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 03:04:26 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA14181 for ; Tue, 2 Mar 1999 03:04:25 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA02531 for ; Tue, 2 Mar 1999 02:07:54 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA05935 for glowbugs-outgoing; Mon, 1 Mar 1999 22:56:21 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id WAA05929 for ; Mon, 1 Mar 1999 22:56:17 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 1 Mar 1999 22:56:16 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> AWA 1929 event tubes... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I also found a listing of the most common tubes available to the radio amateur of 1929, with their characteristics. The tubes are: UX-112A UX-120 UX-171-A UX-199 UX-201-A UV-203-A UV-204-A UV-206 UX-210 UV-211 UX-222 UY-224 UY-227 UX-240 UX-245 UX-250 UX-841 UX-842 UX-845 UV-849 UV-851 UX-852 UV-860 UV-861 UX-865 WE-211A WE-211D WE-212A WE-212D WE-215A Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 04:07:06 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id EAA14219 for ; Tue, 2 Mar 1999 04:07:06 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id DAA24145 for ; Tue, 2 Mar 1999 03:10:31 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id AAA07443 for glowbugs-outgoing; Tue, 2 Mar 1999 00:01:26 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from scaup.prod.itd.earthlink.net (scaup.prod.itd.earthlink.net [207.217.120.49]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id AAA07433 for ; Tue, 2 Mar 1999 00:01:21 -0800 (PST) Received: from default (pool009-max7.mpop2-ca-us.dialup.earthlink.net [207.217.241.59]) by scaup.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id AAA05422 for ; Tue, 2 Mar 1999 00:00:32 -0800 (PST) Message-Id: <3.0.5.32.19990301235658.01bd4220@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Mon, 01 Mar 1999 23:56:58 -0800 To: glowbugs@piobaire.mines.uidaho.edu From: Jim Hill Subject: GB> Re: Ross Hull regen, June '31 QST Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Interesting article; thanks to Bobbi for finding it. The title doesn't indicate it is a receiver article. If you build this receiver, add a RF gain control. Otherwise, you will have problems with strong signals overwhelming the detector. I say this from experience in using my battery operated SW-3. A pot across the antenna coil, with the wiper connected to the antenna might do the job. 73's Jim From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 11:06:47 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA14431 for ; Tue, 2 Mar 1999 11:06:47 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA31658 for ; Tue, 2 Mar 1999 10:10:19 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA10336 for glowbugs-outgoing; Tue, 2 Mar 1999 06:55:57 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd10.hotmail.com [207.82.252.74]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id GAA10327 for ; Tue, 2 Mar 1999 06:55:52 -0800 (PST) Received: (qmail 22481 invoked by uid 0); 2 Mar 1999 14:55:11 -0000 Message-ID: <19990302145511.22480.qmail@hotmail.com> Received: from 207.214.218.187 by www.hotmail.com with HTTP; Tue, 02 Mar 1999 06:55:10 PST X-Originating-IP: [207.214.218.187] From: "Brad Hernlem" To: keng@uidaho.edu Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- Regennie chokes... Date: Tue, 02 Mar 1999 06:55:10 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >Should you be so inclined to build a regenerative receiver like the OT >did, you will find reference to a large choke, somewhere on the order of >500 to 1000 Henries. I have been mystified, up until now, about how one >could get such a choke these days. > >Well, a few minutes ago, I was re-reading my copy of the Lindsay book >"Those Great Old Handbook Receivers" and discovered a couple of things I >missed the first time through. > >In at least one receiver shown in the 1929 section of the book, mention is >made of using a Ford spark coil secondary as the choke. Suddenly it dawned >on me that we could use ignition spark coils for that purpose. I >know that most ignition systems nowadays dont'use an ignition coil >anymore, but any decent auto parts store should still be able to get them >for older cars. I swear I was thinking of just that thing while driving home yesterday! I've got an old coil laying around (I was planning to make a "Jacob's Ladder") and will have to try it out. Ignition coils are actually a type of autotransformer with a lot more windings on the secondary. I wonder how they would work as a step up interstage transformer? I don't know the turns ratio though. Something else I found last night was a couple filter chokes out of a high voltage filter that I got at swap meet some time back. I measured the inductive reactance of these units and guess that they are about 90 Henries which ought to be adequate, I think. BTW, my method for measuring inductive reactance is as follows. Could someone verify that it is not incorrect? I use a 990 Hz audio source with 4.5 V P-P output at about 600 ohms impedence (this was another swap meet find/germanium transistor vintage) fed into the coil through a resistor. With an oscilloscope I measure the P-P voltages across the resistor and the total circuit. Figuring that the ratio of the voltages should be proportional to the resistance of the resistor divided by the total impedance of the circuit: ----------------- / / (R+R')^2 + XL^2 = total impedance where: \/ R = resistor resistance R' = DC resistance of coil XL = inductive reactance of coil Then I calculate the inductive reactance from the equation: -------------------------- / / (R^2)(VT/VR)^2 - (R+R')^2 \/ where: VT = total P-P voltage across circuit (4.5 V) VR = P-P voltage across the series resistor Sound right? I got about 520 K ohm inductive reactance for my coil according to these calculations at four different values of R. Regards, Brad >Does anyone here know what the actual value of that might be? > >I'll bet it is pretty big! > >Ken W7EKB > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 12:14:28 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA14470 for ; Tue, 2 Mar 1999 12:14:27 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA09406 for ; Tue, 2 Mar 1999 11:17:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA11221 for glowbugs-outgoing; Tue, 2 Mar 1999 08:04:32 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA11213 for ; Tue, 2 Mar 1999 08:04:29 -0800 (PST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id KAA02664; Tue, 2 Mar 1999 10:56:40 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903021556.KAA02664@weedcon1.cropsci.ncsu.edu> Subject: Re: GB> Regennie chokes... no magic at all In-Reply-To: from Ken Gordon at "Mar 1, 99 10:50:22 pm" To: keng@uidaho.edu (Ken Gordon) Date: Tue, 2 Mar 1999 10:56:39 -0500 (EST) Cc: glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Should you be so inclined to build a regenerative receiver like the OT > did, you will find reference to a large choke, somewhere on the order of > 500 to 1000 Henries. I have been mystified, up until now, about how one > could get such a choke these days. Actually, folks, in my hands, not that my hands are anything special, you can use any value of choke from 1h to 1000h. The only requirement for the choke is to act as a reasonable impedance for a high-pass filter at audio. The coupling capacitor can be anything from 0.01ufd (like National used in the magical mystical unobtainium coupler), or as plebian as 1-10ufd with a 1-10h choke. The actual value of choke is entirely non-critical for most applications in regen detector coupling. Purists may think otherwise, but practically, it makes little difference. If you use low values of choke inductance, you can actually tune the audio output to act as a resonant filter at a reasonable audio frequency of say 500hz. The hype of the old mystical magical National coupler is just that, hype. > Well, a few minutes ago, I was re-reading my copy of the Lindsay book > "Those Great Old Handbook Receivers" and discovered a couple of things I > missed the first time through. > > In at least one receiver shown in the 1929 section of the book, mention is > made of using a Ford spark coil secondary as the choke. Suddenly it dawned > on me that we could use ignition spark coils for that purpose. I > know that most ignition systems nowadays dont'use an ignition coil > anymore, but any decent auto parts store should still be able to get them > for older cars. > > Does anyone here know what the actual value of that might be? Well, if you measure it, I would expect that it is only around a couple of henries. Remember that it is only an iron rod solenoid, and not even a closed core reactor by design. The inductance at audio can't be all that much. > I'll bet it is pretty big! Someone measure it. I would not expect much. > Ken W7EKB ZUT DE de olde pfarte.... BA Bob From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 12:25:36 1999 Return-Path: Received: from smtp.WPI.EDU ([130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA14481 for ; Tue, 2 Mar 1999 12:25:36 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA29348 for ; Tue, 2 Mar 1999 11:27:44 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA11476 for glowbugs-outgoing; Tue, 2 Mar 1999 08:13:42 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA11471 for ; Tue, 2 Mar 1999 08:13:39 -0800 (PST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id LAA02690; Tue, 2 Mar 1999 11:05:39 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903021605.LAA02690@weedcon1.cropsci.ncsu.edu> Subject: Re: GB> ceramic sockets on regens: one last question..... In-Reply-To: <199903011934.LAA02779@netcom18.netcom.com> from "Tom R. Rice" at "Mar 1, 99 11:34:52 am" To: tomrice@netcom.com (Tom R. Rice) Date: Tue, 2 Mar 1999 11:05:39 -0500 (EST) Cc: glowbugs@piobaire.mines.uidaho.edu, boatanchors@sco.theporch.com X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > One thing still bothers me about this ceramic-socket- > on-regens issue: > > The need for a _quality_socket_ (read ceramic) has been > well argued, but, since I've never seen any ceramic-based > receiving tubes (only a few xmitting types), why does it > matter? Are we saying that the Bakelite used in old > tube bases is of better RF quality than that used in > sockets? > > Inquiring minds want to know....... > > 73 de WB6BYH Old bakelite does not have all that good an insulation property. But, for the average regen detector, the losses in the bakelite are overcome, or not generally of significant value. In the early days, it was not uncommon, in the pursuit of ``low loss'' tuner design (see articles in the middle 1920's on tuner [regen] design where they went to great lengths to reduce the losses across the grid to cathode by removing the tube base even), to do drastic things such as cut an X across the bakelite between the pins to add to the leakage path. In practical use, it does not matter all that much. BUT, on a tube like the '01A it can make an audible difference, if the grid leak is high value. If the grid leak is medium to low value, it has more path than the bakelite used in the socket. Thus it does not really matter. If the leak is 10megs or higher, then sometimes the loss across the bakelite between the pins can be of the order of 1-2 meg ohms, in which case it nullifies the effect of the high value grid leak. On tube of the late 20's and on, the bakelite quality was improved and is fine, even now. ZUT DE NA4G/Bob From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 12:29:00 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA14485 for ; Tue, 2 Mar 1999 12:29:00 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA14950 for ; Tue, 2 Mar 1999 11:32:37 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA11523 for glowbugs-outgoing; Tue, 2 Mar 1999 08:16:10 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA11517 for ; Tue, 2 Mar 1999 08:16:06 -0800 (PST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id LAA02703; Tue, 2 Mar 1999 11:08:20 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903021608.LAA02703@weedcon1.cropsci.ncsu.edu> Subject: Re: GB> Re: Ross Hull regen, June '31 QST In-Reply-To: <3.0.5.32.19990301235658.01bd4220@earthlink.net> from Jim Hill at "Mar 1, 99 11:56:58 pm" To: jshillw6ivw@earthlink.net (Jim Hill) Date: Tue, 2 Mar 1999 11:08:20 -0500 (EST) Cc: glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Interesting article; thanks to Bobbi for finding it. The title doesn't > indicate it is a receiver article. > > If you build this receiver, add a RF gain control. Otherwise, you will have > problems with strong signals overwhelming the detector. > > I say this from experience in using my battery operated SW-3. A pot across > the antenna coil, with the wiper connected to the antenna might do the job. > > 73's Jim On any regen, if it overloads, uncouple, uncouple, uncouple, uncouple is the magick operand. Most coupling on regens is too tight. If an RF gain control is required, it may be more advantageous to try physically uncoupling the antenna more rather than throttling the rf stage. Something to think about.... ZUT DE NA4G/Bob From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 13:33:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA14519 for ; Tue, 2 Mar 1999 13:33:28 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA20220 for ; Tue, 2 Mar 1999 12:37:05 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA12627 for glowbugs-outgoing; Tue, 2 Mar 1999 09:14:24 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA12619 for ; Tue, 2 Mar 1999 09:14:19 -0800 (PST) Received: from wb8mhe (circ-ras2-4-cs-5.dial.bright.net [209.143.14.184]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id MAA02217; Tue, 2 Mar 1999 12:12:23 -0500 (EST) Message-ID: <001c01be64cf$d06d8980$b80e8fd1@wb8mhe> From: "Dick Blaney" To: "Brad Hernlem" , Cc: Subject: Re: GB> Re: GB- Regennie chokes... Date: Tue, 2 Mar 1999 12:12:10 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Many of those were used as chokes in the old days. One popular trick was to use one of those rectangular Ford ignition coil secondaries (without the vibrator points) as an audio plate choke in parallel with a condenser (capacitor) to form a parallel resonant tank at some pleasent CW note (about 1000 cys) to greatly increase the 'genny selectivity. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: Brad Hernlem To: keng@uidaho.edu Cc: glowbugs@piobaire.mines.uidaho.edu Date: Tuesday, March 02, 1999 10:12 AM Subject: GB> Re: GB- Regennie chokes... > >>Should you be so inclined to build a regenerative receiver like the OT >>did, you will find reference to a large choke, somewhere on the order >of >>500 to 1000 Henries. I have been mystified, up until now, about how one >>could get such a choke these days. >> >>Well, a few minutes ago, I was re-reading my copy of the Lindsay book >>"Those Great Old Handbook Receivers" and discovered a couple of things >I >>missed the first time through. >> >>In at least one receiver shown in the 1929 section of the book, mention >is >>made of using a Ford spark coil secondary as the choke. Suddenly it >dawned >>on me that we could use ignition spark coils for that purpose. I >>know that most ignition systems nowadays dont'use an ignition coil >>anymore, but any decent auto parts store should still be able to get >them >>for older cars. > >I swear I was thinking of just that thing while driving home yesterday! >I've got an old coil laying around (I was planning to make a "Jacob's >Ladder") and will have to try it out. Ignition coils are actually a type >of autotransformer with a lot more windings on the secondary. I wonder >how they would work as a step up interstage transformer? I don't know >the turns ratio though. > >Something else I found last night was a couple filter chokes out of a >high voltage filter that I got at swap meet some time back. I measured >the inductive reactance of these units and guess that they are about 90 >Henries which ought to be adequate, I think. > >BTW, my method for measuring inductive reactance is as follows. Could >someone verify that it is not incorrect? > >I use a 990 Hz audio source with 4.5 V P-P output at about 600 ohms >impedence (this was another swap meet find/germanium transistor vintage) >fed into the coil through a resistor. With an oscilloscope I measure the >P-P voltages across the resistor and the total circuit. Figuring that >the ratio of the voltages should be proportional to the resistance of >the resistor divided by the total impedance of the circuit: > > ----------------- > / > / (R+R')^2 + XL^2 = total impedance where: >\/ > >R = resistor resistance >R' = DC resistance of coil >XL = inductive reactance of coil > >Then I calculate the inductive reactance from the equation: > > -------------------------- > / > / (R^2)(VT/VR)^2 - (R+R')^2 >\/ > >where: > >VT = total P-P voltage across circuit (4.5 V) >VR = P-P voltage across the series resistor > >Sound right? > >I got about 520 K ohm inductive reactance for my coil according to these >calculations at four different values of R. > >Regards, > >Brad > >>Does anyone here know what the actual value of that might be? >> >>I'll bet it is pretty big! >> >>Ken W7EKB >> >> > > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com > From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 16:06:34 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA14691 for ; Tue, 2 Mar 1999 16:06:32 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA17413 for ; Tue, 2 Mar 1999 15:10:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA14156 for glowbugs-outgoing; Tue, 2 Mar 1999 11:30:12 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from wallias.eda.com (wallias.eda.com [199.85.245.97]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA14151 for ; Tue, 2 Mar 1999 11:30:05 -0800 (PST) Received: from bgriff.eda.com (bgriff.eda.com [199.85.245.188]) by wallias.eda.com (8.6.11/8.6.9) with SMTP id OAA10581; Tue, 2 Mar 1999 14:28:03 -0500 Message-Id: <3.0.5.32.19990302143310.008aad90@mail.eda.com> X-Sender: bgriff@mail.eda.com X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Tue, 02 Mar 1999 14:33:10 -0500 To: BOATANCHORS@LISTSERV.TEMPE.GOV From: Bill Griffith Subject: GB> ham radio magazine index - online Cc: glowbugs@piobaire.mines.uidaho.edu, homebrew@qth.net Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi all, For those interested, I've posted an index of "ham radio magazine" articles at : http://webhome.idirect.com/~griffith/hrindex.htm The index covers Mar'68 to Jun'90, and the format is roughly the same as the published Annual Index. Enjoy! Bill Griffith, VE3WGX griffith@idirect.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 16:23:10 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA14702 for ; Tue, 2 Mar 1999 16:23:10 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA11718 for ; Tue, 2 Mar 1999 15:26:48 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA14347 for glowbugs-outgoing; Tue, 2 Mar 1999 11:38:31 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA14340 for ; Tue, 2 Mar 1999 11:38:20 -0800 (PST) Received: from wpi.WPI.EDU (jski@wpi.WPI.EDU [130.215.24.6]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA01786 for ; Tue, 2 Mar 1999 14:37:46 -0500 (EST) Received: (from jski@localhost) by wpi.WPI.EDU (8.9.3/8.9.3) id OAA09938 for glowbugs@piobaire.mines.uidaho.edu; Tue, 2 Mar 1999 14:37:45 -0500 (EST) From: "Joseph M. Krzeszewski" Message-Id: <199903021937.OAA09938@wpi.WPI.EDU> Subject: GB> Thanks, questions and comments... To: glowbugs@piobaire.mines.uidaho.edu (glowbugs reflector) Date: Tue, 2 Mar 1999 14:37:45 -0500 (EST) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO First of all, thanks for the info on the pencil tubes. The filaments are a bit hungry, but I bet it will work fine as a dinky regen detector. I will be trying that at some point, but after I get my curent project nailed down. There was some mention of using auto ignition coils as chokes. Doesn't sound like a bad idea, except that they aren't really designed for sustained DC curent. Some higher power units reqire an external resistor to keep them from overheating. I konw that I have heard all kinds of stories of people burning up the coils in their aircooled VW's by sitting with the ignition on and the engine off. If the points are closed, the coil cooks. In radio service, I guess the plate curent should be low enough to prevent a problem, but it might be an issue if you are considering using it as a plate choke in a transmiter. As a complete aside, when did "modern engines" need to fire any faster than older engines? My 63 beetle actualy turns faster at cruising speed than most "modern" engines. I might have asked this before, but has anyone had any luck using 12V filament transformers as 10:1 interstage couplers? How about doorbell transformers? My next question is about the bakelite bases on tubes and the sockets of the same material. If the bakelite on tubes has been of reasonable quality since the late 1920's, then what is the story with the tube sockets. Aparently it is still a problem or Sandy wouldn't have been going off about it. Are tube sockets just built of lower quality materials or is there something else I am missing. I suspect that part of the problem is that most "new" octal sockets are built for relays. The only real important value on one of those is breakdown voltage. RF loss probably isn't even considered. And finally, does anyone have any experience with the old HeathKit SB-101's? I have a friend who is using one as his primary station, but he has little to no lower sideband. Upper sideband is great, but lower sideband is weak and tinny. The lower sideband oscilator is weak, but the same tube runs upper sideband which is fine, so it isn't a bad tube. We temporarily swaped the upper and lower sideband crystals and the problem didn't follow the crystal, so it isn't a weak crystal. We are confidant that the problem is on the IF board as it all worked fine until he rebuilt that board. What confuses me is what kind of error would only take out lower sideband? I would get him on this list, but unfortunately, he has no internet access as of yet. -- Joe -- Joseph M. Krzeszewski Mechanical Engineering and stuff N5LHF Jack of All Trades, Master of None... Yet jski@wpi.edu -= CCC Shop Student Hardware Specialist =- From psykey@okcforum.org Tue Mar 2 16:27:20 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA14709 for ; Tue, 2 Mar 1999 16:27:19 -0500 Received: from okcforum.org (IDENT:psykey@okcforum.org [206.30.124.5]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA01468 for ; Tue, 2 Mar 1999 15:30:59 -0500 (EST) Received: (from psykey@localhost) by okcforum.org (8.8.7/8.8.7) id OAA26932 for jski@wpi.edu; Tue, 2 Mar 1999 14:30:56 -0600 From: Jim Glover Message-Id: <199903022030.OAA26932@okcforum.org> Subject: Re: GB> Thanks, questions and comments... To: jski@WPI.EDU (Joseph M. Krzeszewski) Date: Tue, 2 Mar 1999 14:30:56 -0600 (EST) In-Reply-To: <199903021937.OAA09938@wpi.WPI.EDU> from "Joseph M. Krzeszewski" at Mar 2, 99 02:37:45 pm Content-Type: text Status: RO > I might have asked this before, but has anyone had any luck using 12V > filament transformers as 10:1 interstage couplers? How about doorbell > transformers? I have a doorbell transformer in my junk box, and would like to request that you pass along any off-list responses concerning doorbell tranformers that you get to this question. Thanks! --Jim WB5UDE From na4g@weedcon1.cropsci.ncsu.edu Tue Mar 2 17:16:01 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA14740 for ; Tue, 2 Mar 1999 17:16:01 -0500 Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA27567 for ; Tue, 2 Mar 1999 16:19:27 -0500 (EST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id QAA03116; Tue, 2 Mar 1999 16:11:34 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903022111.QAA03116@weedcon1.cropsci.ncsu.edu> Subject: Re: GB> regennie bits In-Reply-To: <199903021937.OAA09938@wpi.WPI.EDU> from "Joseph M. Krzeszewski" at "Mar 2, 99 02:37:45 pm" To: jski@WPI.EDU (Joseph M. Krzeszewski) Date: Tue, 2 Mar 1999 16:11:34 -0500 (EST) Cc: glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Status: RO > I might have asked this before, but has anyone had any luck using 12V > filament transformers as 10:1 interstage couplers? How about doorbell > transformers? I have tried them and they do work at lower battery voltages (48 or less). My expectation is that a bell transformer at 24v or so or a surplus 28v transformer should work rather well. I would even expect a 110/440v transformer would work, although those get fairly big to plop into an average regennie. ZUT DE NA4G/Bob From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 17:50:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA14764 for ; Tue, 2 Mar 1999 17:50:19 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA21745 for ; Tue, 2 Mar 1999 16:53:56 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA15770 for glowbugs-outgoing; Tue, 2 Mar 1999 13:20:09 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA15765 for ; Tue, 2 Mar 1999 13:20:05 -0800 (PST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id QAA03116; Tue, 2 Mar 1999 16:11:34 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903022111.QAA03116@weedcon1.cropsci.ncsu.edu> Subject: Re: GB> regennie bits In-Reply-To: <199903021937.OAA09938@wpi.WPI.EDU> from "Joseph M. Krzeszewski" at "Mar 2, 99 02:37:45 pm" To: jski@WPI.EDU (Joseph M. Krzeszewski) Date: Tue, 2 Mar 1999 16:11:34 -0500 (EST) Cc: glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > I might have asked this before, but has anyone had any luck using 12V > filament transformers as 10:1 interstage couplers? How about doorbell > transformers? I have tried them and they do work at lower battery voltages (48 or less). My expectation is that a bell transformer at 24v or so or a surplus 28v transformer should work rather well. I would even expect a 110/440v transformer would work, although those get fairly big to plop into an average regennie. ZUT DE NA4G/Bob From Bill_Henderson@ocdsb.edu.on.ca Tue Mar 2 17:25:23 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA14749 for ; Tue, 2 Mar 1999 17:25:23 -0500 Received: from smtp13.bellglobal.com (smtp13.bellglobal.com [204.101.251.52]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA25459 for ; Tue, 2 Mar 1999 16:29:03 -0500 (EST) Received: from mrelay ([192.168.1.119]) by smtp13.bellglobal.com (8.8.5/8.8.5) with ESMTP id QAA03611 for ; Tue, 2 Mar 1999 16:29:30 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F7Z000JOKZWCR@mrelay.bellglobal.com> for jski@wpi.edu; Tue, 2 Mar 1999 16:28:45 -0500 (EST) Date: Tue, 02 Mar 1999 21:26:21 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: Re: GB> Thanks, questions and comments... To: jski@WPI.EDU Cc: glowbugs@piobaire.mines.uidaho.edu Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) References: <199903021937.OAA09938@wpi.WPI.EDU> Status: RO "We are confidant that the problem is on the IF board as it all worked fine until he rebuilt that board. What confuses me is what kind of error would only take out lower sideband?" Alignment, perhaps... any components changed would be suspect (or a flaky solder joint... we all make 'em sooner or later) - Bill H. From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 18:11:36 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA14778 for ; Tue, 2 Mar 1999 18:11:36 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA03969 for ; Tue, 2 Mar 1999 17:15:02 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA15914 for glowbugs-outgoing; Tue, 2 Mar 1999 13:30:03 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp13.bellglobal.com (smtp13.bellglobal.com [204.101.251.52]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA15897 for ; Tue, 2 Mar 1999 13:29:51 -0800 (PST) Received: from mrelay ([192.168.1.119]) by smtp13.bellglobal.com (8.8.5/8.8.5) with ESMTP id QAA03610 for ; Tue, 2 Mar 1999 16:29:29 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F7Z000JOKZWCR@mrelay.bellglobal.com> for glowbugs@piobaire.mines.uidaho.edu; Tue, 2 Mar 1999 16:28:45 -0500 (EST) Date: Tue, 02 Mar 1999 21:26:21 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: Re: GB> Thanks, questions and comments... To: jski@WPI.EDU Cc: glowbugs@piobaire.mines.uidaho.edu Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) References: <199903021937.OAA09938@wpi.WPI.EDU> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO "We are confidant that the problem is on the IF board as it all worked fine until he rebuilt that board. What confuses me is what kind of error would only take out lower sideband?" Alignment, perhaps... any components changed would be suspect (or a flaky solder joint... we all make 'em sooner or later) - Bill H. From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 19:17:53 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA14816 for ; Tue, 2 Mar 1999 19:17:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA17123 for ; Tue, 2 Mar 1999 18:21:33 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA16012 for glowbugs-outgoing; Tue, 2 Mar 1999 13:34:39 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom6.netcom.com (tomrice@netcom6.netcom.com [192.100.81.114]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA15998 for ; Tue, 2 Mar 1999 13:34:30 -0800 (PST) Received: (from tomrice@localhost) by netcom6.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id NAA05458; Tue, 2 Mar 1999 13:33:45 -0800 (PST) From: "Tom R. Rice" Message-Id: <199903022133.NAA05458@netcom6.netcom.com> Subject: Re: GB> ceramic sockets on regens: one last question..... To: na4g@weedcon1.cropsci.ncsu.edu (User Na4g Boatanchor Bob) Date: Tue, 2 Mar 1999 13:33:45 -0800 (PST) Cc: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) In-Reply-To: <199903021605.LAA02690@weedcon1.cropsci.ncsu.edu> from "User Na4g Boatanchor Bob" at Mar 2, 99 11:05:39 am X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO O.K., that's the stuff. I'm mainly concerned here with tubes of the "double-digit" ilk: types 27, 30, 45, 75, 76 of which I have enough to consider some serious Thirties-style construction. thanks & 73 de WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 19:05:15 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA14807 for ; Tue, 2 Mar 1999 19:05:14 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA14148 for ; Tue, 2 Mar 1999 18:08:52 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA16912 for glowbugs-outgoing; Tue, 2 Mar 1999 14:18:38 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from www.aimme.es (www.aimme.es [195.57.139.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA16904 for ; Tue, 2 Mar 1999 14:18:23 -0800 (PST) Received: from jvg1 [212.25.131.11] by www.aimme.es (SMTPD32-4.04) id A4D56080128; Tue, 02 Mar 1999 23:23:17 +0100 Message-Id: <3.0.1.32.19990302231400.006ab668@pop.ctv.es> X-Sender: eb5agv@pop.ctv.es X-Mailer: Windows Eudora Light Version 3.0.1 (32) Date: Tue, 02 Mar 1999 23:14:00 +0100 To: "Glowbugs List" From: "JOSE V. GAVILA (EB5AGV/EC5AAU)" Subject: GB> * CDial Project * Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello homebrewers! This afternoon I have finally done a project which was in my mind for some days... a CDial!. Well, now you will be asking yourself: what is a CDial?. A CDial is, as its name says a 'CD-dial'. Logical, isn't it :-)?. It is not new to use a CD-ROM as a dial but my approach is somewhat different and can give to your homebrew rig an special and unique look. I have just made one CDial at the moment which is the one I have pictured in my WEB pages (address in the signature of this message; look at 'Homebrewing pages' section). Please, I would appreciate if you take a look and let me know what do you think. Thanks! Best regards. JOSE -------------------------------------------------------- 73 EB5AGV / EC5AAU JOSE V. GAVILA Ausias March 46, 15 46910 Benetusser - VALENCIA SPAIN ** VISIT MY VINTAGE RADIO SITE - updated 2-March-1999 *** http://www.geocities.com/SiliconValley/6992/ e-mail: eb5agv@ctv.es & eb5agv@amsat.org From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 20:07:26 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA14843 for ; Tue, 2 Mar 1999 20:07:25 -0500 Received: from bigboote.WPI.EDU (root@bigboote.WPI.EDU [130.215.24.2]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA06986 for ; Tue, 2 Mar 1999 19:11:08 -0500 (EST) Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by bigboote.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA20556 for ; Tue, 2 Mar 1999 19:11:03 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA17848 for glowbugs-outgoing; Tue, 2 Mar 1999 15:31:08 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd13.hotmail.com [207.82.252.77]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id PAA17843 for ; Tue, 2 Mar 1999 15:31:02 -0800 (PST) Received: (qmail 1916 invoked by uid 0); 2 Mar 1999 23:29:43 -0000 Message-ID: <19990302232943.1915.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Tue, 02 Mar 1999 15:29:42 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: eb5agv@ctv.es Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- * CDial Project * Date: Tue, 02 Mar 1999 15:29:42 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, This may be a stupid question, but just how DO you engrave a CD? Any special equipment or just a steady hand (could be considered special equipment)? Brad >Hello homebrewers! > >This afternoon I have finally done a project which was in my mind for some >days... a CDial!. Well, now you will be asking yourself: what is a CDial?. >A CDial is, as its name says a 'CD-dial'. Logical, isn't it :-)?. It is not >new to use a CD-ROM as a dial but my approach is somewhat different and can >give to your homebrew rig an special and unique look. > >I have just made one CDial at the moment which is the one I have pictured >in my WEB pages (address in the signature of this message; look at >'Homebrewing pages' section). Please, I would appreciate if you take a look >and let me know what do you think. > >Thanks! > >Best regards. > >JOSE >-------------------------------------------------------- > 73 EB5AGV / EC5AAU > JOSE V. GAVILA > Ausias March 46, 15 > 46910 Benetusser - VALENCIA > SPAIN > >** VISIT MY VINTAGE RADIO SITE - updated 2-March-1999 *** > http://www.geocities.com/SiliconValley/6992/ > e-mail: eb5agv@ctv.es & eb5agv@amsat.org ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From wb8mhe@bright.net Tue Mar 2 21:38:41 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA14913 for ; Tue, 2 Mar 1999 21:38:41 -0500 Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA28587 for ; Tue, 2 Mar 1999 20:42:23 -0500 (EST) Received: from wb8mhe (circ-ras2-2-cs-1.dial.bright.net [209.143.14.130]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id UAA20233; Tue, 2 Mar 1999 20:42:14 -0500 (EST) Message-ID: <003001be6517$0a3bd8a0$820e8fd1@wb8mhe> From: "Dick Blaney" To: "Joseph M. Krzeszewski" Cc: "Dick Blaney" Subject: Re: GB> Thanks, questions and comments... Date: Tue, 2 Mar 1999 20:41:53 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Status: RO Ji, Joe, About using the ignition coils as audio chokes, the primary of the coil is not used. They will, in fact, burn out when that large "many amp" current is drawn through the primary with the coil directly connected across a high current source like a 12V auto battery. The secondary is the only winding used as an audio choke, and is several thousand Ohms resistance, in it's self, and with the current further limited by the detector tube, they don't even start to get warm, and they worked great for me when I used the Ford Model T coil when I was a teenager. And yes, I can still remember that far back, beleive it or not.. Now with respect to the 12V filament transformer in audio service, no I have not used a 12V, but I did use a couple of the 24 Volt/300 mA Radio Shack transformers to replace the open windings in an antique RCA Radiola III and another antique receiver I have. Works great. The ratio here would be about 4.5:1. Hope this helps on at least 2 of your questions. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: Joseph M. Krzeszewski To: glowbugs reflector Date: Tuesday, March 02, 1999 3:33 PM Subject: GB> Thanks, questions and comments... >First of all, thanks for the info on the pencil tubes. The filaments are a >bit hungry, but I bet it will work fine as a dinky regen detector. I will be >trying that at some point, but after I get my curent project nailed down. > >There was some mention of using auto ignition coils as chokes. Doesn't sound >like a bad idea, except that they aren't really designed for sustained DC >curent. Some higher power units reqire an external resistor to keep them >from overheating. I konw that I have heard all kinds of stories of people >burning up the coils in their aircooled VW's by sitting with the ignition on >and the engine off. If the points are closed, the coil cooks. In radio >service, I guess the plate curent should be low enough to prevent a problem, >but it might be an issue if you are considering using it as a plate choke in >a transmiter. >As a complete aside, when did "modern engines" need to fire any faster than >older engines? My 63 beetle actualy turns faster at cruising speed than most >"modern" engines. > >I might have asked this before, but has anyone had any luck using 12V >filament transformers as 10:1 interstage couplers? How about doorbell >transformers? > >My next question is about the bakelite bases on tubes and the sockets of the >same material. If the bakelite on tubes has been of reasonable quality since >the late 1920's, then what is the story with the tube sockets. Aparently it >is still a problem or Sandy wouldn't have been going off about it. Are tube >sockets just built of lower quality materials or is there something else I >am missing. I suspect that part of the problem is that most "new" octal >sockets are built for relays. The only real important value on one of those >is breakdown voltage. RF loss probably isn't even considered. > >And finally, does anyone have any experience with the old HeathKit SB-101's? >I have a friend who is using one as his primary station, but he has little >to no lower sideband. Upper sideband is great, but lower sideband is weak >and tinny. > >The lower sideband oscilator is weak, but the same tube runs upper sideband >which is fine, so it isn't a bad tube. We temporarily swaped the upper and >lower sideband crystals and the problem didn't follow the crystal, so it >isn't a weak crystal. > >We are confidant that the problem is on the IF board as it all worked fine >until he rebuilt that board. What confuses me is what kind of error would >only take out lower sideband? > >I would get him on this list, but unfortunately, he has no internet access >as of yet. > >-- Joe > >-- >Joseph M. Krzeszewski Mechanical Engineering and stuff >N5LHF Jack of All Trades, Master of None... Yet >jski@wpi.edu -= CCC Shop Student Hardware Specialist =- > From wb8mhe@bright.net Tue Mar 2 21:46:15 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA14922 for ; Tue, 2 Mar 1999 21:46:15 -0500 Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA01592 for ; Tue, 2 Mar 1999 20:49:58 -0500 (EST) Received: from wb8mhe (circ-ras2-2-cs-1.dial.bright.net [209.143.14.130]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id UAA08196; Tue, 2 Mar 1999 20:49:51 -0500 (EST) Message-ID: <004f01be6518$1b0b52e0$820e8fd1@wb8mhe> From: "Dick Blaney" To: "User Na4g Boatanchor Bob" , "Joseph M. Krzeszewski" Cc: Subject: Re: GB> regennie bits Date: Tue, 2 Mar 1999 20:49:25 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Status: RO Hi All, I sent this from my experience to Joe off the list, but then thought I'd post it for all. About using the ignition coils as audio chokes, the primary of the coil is not used. They will, in fact, burn out when that large "many amp" current is drawn through the primary with the coil directly connected across a high current source like a 12V auto battery. The secondary is the only winding used as an audio choke, and is several thousand Ohms resistance, in it's self, and with the current further limited by the detector tube, they don't even start to get warm, and they worked great for me when I used the Ford Model T coil as an audio filter when I was a teenager. And yes, I can still remember that far back, beleive it or not.. Now with respect to the 12V filament transformer in audio service, no I have not used a 12V, but I did use a couple of the 24 Volt/300 mA Radio Shack transformers to replace the open windings in an antique RCA Radiola III and another antique receiver I have. I removed the original core from the RS xfmr, since the center leg of the winding just exactly fit the original RCA core, and I could hide it under the cover shells. Works great. The ratio here would be about 4.5:1. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: User Na4g Boatanchor Bob To: Joseph M. Krzeszewski Cc: glowbugs@piobaire.mines.uidaho.edu Date: Tuesday, March 02, 1999 4:58 PM Subject: Re: GB> regennie bits >> I might have asked this before, but has anyone had any luck using 12V >> filament transformers as 10:1 interstage couplers? How about doorbell >> transformers? > >I have tried them and they do work at lower battery voltages (48 or less). >My expectation is that a bell transformer at 24v or so or a surplus 28v >transformer should work rather well. I would even expect a 110/440v >transformer would work, although those get fairly big to plop into an >average regennie. > >ZUT DE NA4G/Bob > From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 22:26:20 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA14945 for ; Tue, 2 Mar 1999 22:26:20 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA10192 for ; Tue, 2 Mar 1999 21:30:00 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA19185 for glowbugs-outgoing; Tue, 2 Mar 1999 17:50:47 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA19180 for ; Tue, 2 Mar 1999 17:50:34 -0800 (PST) Received: from wb8mhe (circ-ras2-2-cs-1.dial.bright.net [209.143.14.130]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id UAA08196; Tue, 2 Mar 1999 20:49:51 -0500 (EST) Message-ID: <004f01be6518$1b0b52e0$820e8fd1@wb8mhe> From: "Dick Blaney" To: "User Na4g Boatanchor Bob" , "Joseph M. Krzeszewski" Cc: Subject: Re: GB> regennie bits Date: Tue, 2 Mar 1999 20:49:25 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi All, I sent this from my experience to Joe off the list, but then thought I'd post it for all. About using the ignition coils as audio chokes, the primary of the coil is not used. They will, in fact, burn out when that large "many amp" current is drawn through the primary with the coil directly connected across a high current source like a 12V auto battery. The secondary is the only winding used as an audio choke, and is several thousand Ohms resistance, in it's self, and with the current further limited by the detector tube, they don't even start to get warm, and they worked great for me when I used the Ford Model T coil as an audio filter when I was a teenager. And yes, I can still remember that far back, beleive it or not.. Now with respect to the 12V filament transformer in audio service, no I have not used a 12V, but I did use a couple of the 24 Volt/300 mA Radio Shack transformers to replace the open windings in an antique RCA Radiola III and another antique receiver I have. I removed the original core from the RS xfmr, since the center leg of the winding just exactly fit the original RCA core, and I could hide it under the cover shells. Works great. The ratio here would be about 4.5:1. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: User Na4g Boatanchor Bob To: Joseph M. Krzeszewski Cc: glowbugs@piobaire.mines.uidaho.edu Date: Tuesday, March 02, 1999 4:58 PM Subject: Re: GB> regennie bits >> I might have asked this before, but has anyone had any luck using 12V >> filament transformers as 10:1 interstage couplers? How about doorbell >> transformers? > >I have tried them and they do work at lower battery voltages (48 or less). >My expectation is that a bell transformer at 24v or so or a surplus 28v >transformer should work rather well. I would even expect a 110/440v >transformer would work, although those get fairly big to plop into an >average regennie. > >ZUT DE NA4G/Bob > From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 2 23:16:57 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA14972 for ; Tue, 2 Mar 1999 23:16:56 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA19196 for ; Tue, 2 Mar 1999 22:20:38 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA19729 for glowbugs-outgoing; Tue, 2 Mar 1999 18:41:48 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc06.worldnet.att.net (mtiwmhc06.worldnet.att.net [204.127.131.41]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA19724 for ; Tue, 2 Mar 1999 18:41:44 -0800 (PST) Received: from LOCALNAME ([12.73.239.189]) by mtiwmhc06.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990303024036.KVNS26382@LOCALNAME>; Wed, 3 Mar 1999 02:40:36 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, From: Sandy W5TVW Subject: GB> Hunting for: RK-34 tubes Message-Id: <19990303024036.KVNS26382@LOCALNAME> Date: Wed, 3 Mar 1999 02:40:36 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Still looking for several (2 to 10) Raytheon RK-34 dual triode tubes, also known as the 2C34 and the VT-224. Will either purchase them or trade other tubes for them. Anybody have any reposing on the shelf out there? 73, E. V. Sandy Blaize, W5TVW "Boat Anchors collected, restored, repaired, traded and used!" 417 Ridgewood Drive Metairie, LA., 70001 ********* W A N T E D ! ! W A N T E D ! !********* ****** Transmitter/Receiver RT-46/TRC-10 ****** ********* Hallicrafters SR-75 Transceiver ******** ********* Hallicrafters HT-44 Transmitter ******** From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 01:12:18 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA15030 for ; Wed, 3 Mar 1999 01:12:18 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA21446 for ; Wed, 3 Mar 1999 00:15:59 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA20796 for glowbugs-outgoing; Tue, 2 Mar 1999 20:54:51 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp1.jps.net (smtp1.jps.net [209.63.224.236]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA20791 for ; Tue, 2 Mar 1999 20:54:47 -0800 (PST) Received: from jps.net (209-239-198-50.oak.jps.net [209.239.198.50]) by smtp1.jps.net (8.8.5/8.8.5) with ESMTP id UAA25457 for ; Tue, 2 Mar 1999 20:54:20 -0800 (PST) Message-ID: <36DCC060.C61B04F5@jps.net> Date: Tue, 02 Mar 1999 20:53:52 -0800 From: Mike Silva Reply-To: mjsilva@jps.net X-Mailer: Mozilla 4.06 [en] (Win95; U) MIME-Version: 1.0 To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Regens: How much AF gain? References: <19990301200447.16029.qmail@hotmail.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO You're getting more gain than most regens, since the 2000 Ohm load they typically worked into was so low. Ignoring plate resistance, 2000 Ohms times a gm of 2500 works out to a gain of only 5 (14 db, right?). Of course there's a lot more power gain in there. You were able to do much better with your 100k/1k plate transformer. 73, Mike, KK6GM Brad Hernlem wrote: > > How much audio gain is appropriate (necessary?/ typical?) for regen > sets? > > I did some comparisons this weekend between a 3A4 and a 1L4 using a 45V > supply and found that I couldn't get more than about 26 dB gain from > either and that the 1L4 was no worse than the 3A4 (so why use the more > filament current demanding 3A4). This was with a small 100K:1K > transformer on the plate and the HS-33 headset on the secondary. > > What are typical dBm numbers for the audio exiting the regen stage of a > tube based regen? > > Brad > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 02:36:02 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA15073 for ; Wed, 3 Mar 1999 02:36:02 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA16500 for ; Wed, 3 Mar 1999 01:39:40 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA21608 for glowbugs-outgoing; Tue, 2 Mar 1999 22:15:36 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo28.mx.aol.com (imo28.mx.aol.com [198.81.17.72]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA21603 for ; Tue, 2 Mar 1999 22:15:32 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo28.mx.aol.com (IMOv19.3) id wZJPa02499 for ; Wed, 3 Mar 1999 01:13:35 -0500 (EST) Message-ID: Date: Wed, 3 Mar 1999 01:13:35 EST To: glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: Re: GB> regennie bits Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Gang: Just to throw my hat in the ring: I have seen more than one publication suggest using 110/24v. or 110/18v. transformers to sub the 3:1 interstage. Myself, i occasionally get by with a 110/6.3v transf. for audio output to a low impedence device, till the local surplus store gets the usual 8 ohm plate to voice coil things in. Not great, but it works. vry 73 Gary, wd4nka From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 02:41:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA15080 for ; Wed, 3 Mar 1999 02:41:13 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA00287 for ; Wed, 3 Mar 1999 01:44:56 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA21836 for glowbugs-outgoing; Tue, 2 Mar 1999 22:28:49 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from irene.ctv.es (irene.ctv.es [212.25.129.13]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA21830 for ; Tue, 2 Mar 1999 22:28:40 -0800 (PST) Received: from LAB_2.fermax.es (ctv21225140179.ctv.es [212.25.140.179]) by irene.ctv.es (8.9.3/8.9.1) with SMTP id HAA02222; Wed, 3 Mar 1999 07:27:10 +0100 (MET) Message-Id: <3.0.1.32.19990303072845.006b1b00@192.168.0.1> X-Sender: eb5agv#pop.ctv.es@192.168.0.1 X-Mailer: Windows Eudora Light Version 3.0.1 (32) Date: Wed, 03 Mar 1999 07:28:45 +0100 To: "Glowbugs List" , homebrew@qth.net From: "JOSE V. GAVILA (EB5AGV/EC5AAU)" Subject: GB> * CDial Project: additional info * Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello homebrewers! Well, I have received lots of kind comments about the CDial. Thanks a lot to all of you!. There is one thing some of you are wondering: how the engraving is made. Well, this is, of course, the hardest thing of all this project. I use a CNC machine (computer controlled mill in this case) along with a conical tool. It is a kind of plotter, but with a mill instead of a pen. It is connected to a PC which sends the data to the controller. Of course, that machine was not intended to engrave CDs ;-), so one of the toughest problem was how to fix the CD to be engraved without damaging it. It should be perfectly parallel to the milling machine plane, as the engraving is just 0.5 to 0.6 mm depth. Once this was solved there were other things which didn't work, as the CD plastic material melted instead of being cut... Some tweaking with the rotation and advance (XY) speed gave the final result, after some wasted CDs... I don't know if there is interest on this but, if anybody want a custom CDial (which can be customized with different dial divisions and markings to suit your needs), I can offer them (including the support CD) for $20 plus shipping for one unit and $15 each plus shipping for two or more units. As I am from Spain, to save on shipping costs, a good idea could be to ship some CDials to one person for later re-distribution (in case of USA or Canada, for example). One good thing is that the CDial doesn't weight a lot and also it can be accomodated in an standard CD-ROM box for shipping so shipping cost won't be high. Please, if you have any other question, just let me know. Best regards. JOSE ------------------------------------------------------------ 73 EB5AGV / EC5AAU JOSE V. GAVILA Ausias March 46, 15 46910 Benetusser - VALENCIA SPAIN ** VISIT MY VINTAGE RADIO SITE - updated 26-February-1999 *** http://www.geocities.com/SiliconValley/6992/ e-mail: eb5agv@ctv.es & eb5agv@amsat.org From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 03:37:54 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA15132 for ; Wed, 3 Mar 1999 03:37:54 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA21889 for ; Wed, 3 Mar 1999 02:41:30 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA23142 for glowbugs-outgoing; Tue, 2 Mar 1999 23:20:18 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from irene.ctv.es (irene.ctv.es [212.25.129.13]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA23135 for ; Tue, 2 Mar 1999 23:20:14 -0800 (PST) Received: from LAB_2.fermax.es (ctv21225140179.ctv.es [212.25.140.179]) by irene.ctv.es (8.9.3/8.9.1) with SMTP id IAA04932; Wed, 3 Mar 1999 08:18:50 +0100 (MET) Message-Id: <3.0.1.32.19990303082036.006c6454@192.168.0.1> X-Sender: eb5agv#pop.ctv.es@192.168.0.1 X-Mailer: Windows Eudora Light Version 3.0.1 (32) Date: Wed, 03 Mar 1999 08:20:36 +0100 To: "Glowbugs List" , homebrew@qth.net From: "JOSE V. GAVILA (EB5AGV/EC5AAU)" Subject: GB> * CDial Project: additional info (II) * Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello again, Sorry for another message but one person commented something interesting about the markings (numbering) on the dial. The CDial sample I made was intended for FIXED dial and movable pointer, so the numbers would be always read fine (not upside down in any case). In case of a MOVABLE dial and fixed pointer all what is needed is to change the dial markings and put all of them facing to the center of the circle, as in a Collins S-line or KWM-2 dial, for example. This is the great advantage of using a CAD package :-) Best regards. JOSE ------------------------------------------------------------ 73 EB5AGV / EC5AAU JOSE V. GAVILA Ausias March 46, 15 46910 Benetusser - VALENCIA SPAIN ** VISIT MY VINTAGE RADIO SITE - updated 2-March-1999 *** http://www.geocities.com/SiliconValley/6992/ e-mail: eb5agv@ctv.es & eb5agv@amsat.org From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 04:19:10 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id EAA15155 for ; Wed, 3 Mar 1999 04:19:09 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id DAA04818 for ; Wed, 3 Mar 1999 03:22:56 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id AAA23649 for glowbugs-outgoing; Wed, 3 Mar 1999 00:09:46 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from gull.prod.itd.earthlink.net (gull.prod.itd.earthlink.net [207.217.120.85]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id AAA23644 for ; Wed, 3 Mar 1999 00:09:43 -0800 (PST) Received: from default (pool049-max12.mpop2-ca-us.dialup.earthlink.net [207.217.242.99]) by gull.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id AAA00599; Wed, 3 Mar 1999 00:08:52 -0800 (PST) Message-Id: <3.0.5.32.19990303000512.01bdc1d0@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Wed, 03 Mar 1999 00:05:12 -0800 To: Na4g Boatanchor Bob From: Jim Hill Subject: GB> Re:Ross Hull regen, June '31 QST, RF Gain Control Cc: glowbugs@piobaire.mines.uidaho.edu In-Reply-To: <199903021608.LAA02703@weedcon1.cropsci.ncsu.edu> References: <3.0.5.32.19990301235658.01bd4220@earthlink.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 11:08 AM 3/2/99 -0500, you wrote: >> Interesting article; thanks to Bobbi for finding it. The title doesn't >> indicate it is a receiver article. >> >> If you build this receiver, add a RF gain control. Otherwise, you will have >> problems with strong signals overwhelming the detector. >> >> I say this from experience in using my battery operated SW-3. A pot across >> the antenna coil, with the wiper connected to the antenna might do the job. >> >> 73's Jim > >On any regen, if it overloads, uncouple, uncouple, uncouple, uncouple is >the magick operand. Most coupling on regens is too tight. If an RF >gain control is required, it may be more advantageous to try physically >uncoupling the antenna more rather than throttling the rf stage. > >Something to think about.... > >ZUT DE NA4G/Bob > > Bob: You have a good point, but a big problem is the wide range of signal levels. Using earphones and tuning through the 40 CW band, I frequently go from a deafening signal to one I can barely hear. I continually adjust the RF gain, and am convinced that some sort of gain control (other than regeneration) is essential, at least with a circuit that includes a RF amplifier. RF gain is nice because it prevents detector overload, but the one in the SW-3 affects tuning a little. I guess the pluses and minuses would be reversed with audio gain. Actually, I would include both if I were building the Ross Hull regen. RF gain control in my SW-3 consists of a 3k pot across the primary of the RF input coil, with the wiper connected to the antenna. I guess you could call it a form of variable coupling. However, I frequently change antennas, and most are just short random wires. I take frequent short trips with my travel trailer, and try to park in a location with a convenient tree for a random length antenna. I always listen on 40 CW, plus trying other bands. This past weekend, I ran the receiver "wide open" to hear some signals, and cut the RF gain way back to copy some locals. 73's Jim From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 05:19:52 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id FAA15199 for ; Wed, 3 Mar 1999 05:19:48 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id EAA32560 for ; Wed, 3 Mar 1999 04:23:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id AAA24031 for glowbugs-outgoing; Wed, 3 Mar 1999 00:45:46 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hawk.prod.itd.earthlink.net (hawk.prod.itd.earthlink.net [207.217.120.22]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id AAA24026 for ; Wed, 3 Mar 1999 00:45:42 -0800 (PST) Received: from rmccarty.earthlink.net (pool007-max7.ds9-ca-us.dialup.earthlink.net [209.178.5.157]) by hawk.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id AAA25291 for ; Wed, 3 Mar 1999 00:44:52 -0800 (PST) From: "Roger A. McCarty" To: "Glowbugs@Piobaire. Mines. Uidaho. Edu" Subject: GB> First (successful) Attempt Date: Wed, 3 Mar 1999 00:49:25 -0800 Message-ID: <000701be6552$bdb60960$9d05b2d1@rmccarty.earthlink.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Importance: Normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO After a myriad of trials and tribulations, and with the willing shoulders of Ken W7EKB to cry on, I have completed my first (successful) GlowBug/Regen project. Thanks to all who have graciously offered their assistance. See the final results at; http://www.accurate-electronics.com/qrptubes/glowbug.html Roger A. McCarty ARS KD6CC http://www.qsl.net/kd6cc Qrp-L #1555 Southern California From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 10:54:28 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA15364 for ; Wed, 3 Mar 1999 10:54:28 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA23124 for ; Wed, 3 Mar 1999 09:58:18 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA26417 for glowbugs-outgoing; Wed, 3 Mar 1999 06:35:24 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA26412 for ; Wed, 3 Mar 1999 06:35:15 -0800 (PST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id JAA04236; Wed, 3 Mar 1999 09:27:27 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903031427.JAA04236@weedcon1.cropsci.ncsu.edu> Subject: GB> Re: Ross Hull regen, June '31 QST, RF Gain Control In-Reply-To: <3.0.5.32.19990303000512.01bdc1d0@earthlink.net> from Jim Hill at "Mar 3, 99 00:05:12 am" To: jshillw6ivw@earthlink.net (Jim Hill) Date: Wed, 3 Mar 1999 09:27:27 -0500 (EST) Cc: glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > >On any regen, if it overloads, uncouple, uncouple, uncouple, uncouple is > >the magick operand. Most coupling on regens is too tight. If an RF > >gain control is required, it may be more advantageous to try physically > >uncoupling the antenna more rather than throttling the rf stage. > > > >Something to think about.... > > > >ZUT DE NA4G/Bob > > > > > Bob: > You have a good point, but a big problem is the wide range of signal > levels. Using earphones and tuning through the 40 CW band, I frequently go > from a deafening signal to one I can barely hear. I continually adjust the > RF gain, and am convinced that some sort of gain control (other than > regeneration) is essential, at least with a circuit that includes a RF > amplifier. RF gain is nice because it prevents detector overload, but the > one in the SW-3 affects tuning a little. I guess the pluses and minuses > would be reversed with audio gain. Actually, I would include both if I were > building the Ross Hull regen. RF gain control in my SW-3 consists of a 3k > pot across the primary of the RF input coil, with the wiper connected to > the antenna. I guess you could call it a form of variable coupling. It is general practice in regens to run the audio wide open, and throttle the input for gain control. I have had better luck running the RF at medium gain, mainly to act as an isolation thing, and then use variable coupling to control gain. Most of that comes from habit, and design of early receivers where coupling control was a major item. If the RF stage is coil tuned, I might expect that keeping its gain constant and using antenna coupling would give better results on a crowded band. For the untuned RF stages you can't really affect a coupling control except by the pot method, although a series cap can help a little. The goal is probably to keep the detector and audio wide open to max out gain, and then by whatever methods, drop the input to the detector so that it does not overload. I would expect that variable interstage coupling between the RF stage and detector could be used to advantage in a good design, to keep the lid on the signal input strength. That might be useful in untuned RF stages, too. Shielding would become important, perhaps, to reduce bleedthrough and cut down the control of the input signal. > However, I frequently change antennas, and most are just short random > wires. I take frequent short trips with my travel trailer, and try to park > in a location with a convenient tree for a random length antenna. I always > listen on 40 CW, plus trying other bands. This past weekend, I ran the > receiver "wide open" to hear some signals, and cut the RF gain way back to > copy some locals. > 73's Jim Sounds like you are having great fun with your regen, and that is what we are all about, right? It does not have to be pretty, nor designed by the book,..... it only has to work (and they usually do, rather well). Let us hear from others how they are doing with other regens..... Bob/NA4G From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 14:12:51 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA15461 for ; Wed, 3 Mar 1999 14:12:50 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA29731 for ; Wed, 3 Mar 1999 13:16:45 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA28157 for glowbugs-outgoing; Wed, 3 Mar 1999 09:45:12 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd126.hotmail.com [207.82.252.190]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA28152 for ; Wed, 3 Mar 1999 09:45:07 -0800 (PST) Received: (qmail 23093 invoked by uid 0); 3 Mar 1999 15:54:59 -0000 Message-ID: <19990303155459.23092.qmail@hotmail.com> Received: from 207.214.219.21 by www.hotmail.com with HTTP; Wed, 03 Mar 1999 07:54:59 PST X-Originating-IP: [207.214.219.21] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Inductance of Ignition Coil Date: Wed, 03 Mar 1999 07:54:59 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO According to my calculations, using a 990 Hz test frequency, my Japanese 12V ignition coil (for electronic ignition) has an inductance of about 40 Henries. However, the DC resistance was 9 K ohm. I haven't tried it as a coupling choke but that DC resistance seems high for what it is worth. Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 14:22:53 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA15469 for ; Wed, 3 Mar 1999 14:22:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA30758 for ; Wed, 3 Mar 1999 13:26:39 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA28378 for glowbugs-outgoing; Wed, 3 Mar 1999 10:01:20 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from r1.boston.juno.com (r1.boston.juno.com [207.205.100.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA28373 for ; Wed, 3 Mar 1999 10:01:16 -0800 (PST) Received: from x16.boston.juno.com (x16.boston.juno.com [205.231.101.28]) by r1.boston.juno.com (8.8.6.Beta0/8.8.6.Beta0/2.0.kim) with ESMTP id LAAAA24282 for ; Wed, 3 Mar 1999 11:42:17 -0500 (EST) Received: (from aleisen@juno.com) by x16.boston.juno.com (queuemail) id D4S4BWJZ; Wed, 03 Mar 1999 11:38:09 EST To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> For Sale Message-ID: <19990303.110926.11431.9.aleisen@juno.com> X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 0-9,11-12,14,16,18-19 From: ALLAN V EISENHAUR Date: Wed, 03 Mar 1999 11:38:09 EST MIME-Version: 1.0 Content-Type: text/plain; charset=unknown-8bit Content-Transfer-Encoding: 8bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have the following items For Sale or Trade, shipping extra. Thanks AL N1PIC GE solid state thyratrons 4JS1 (3) & 4JS5 (2) make offer ARRL The Radio Operators Manual 1966 $5 ARRL SSB for the Radio Amateur 1954 $12 ARRL SSB for the Radio Amateur 1965 $12 Cowan Publ The New Mobile Handbook By William J Orr W6SAI 1956 $15 Weston #506 2 1/2” panel meter 0-1KVDC 1m ext res. Weston #506 2 1/2” panel meter 0-2. 5KVDC 50K ext res. Weston #506 2 1/2” panel meter 0-2. 5KVDC 50k ext res. Meters $15 ea ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 15:12:47 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA15497 for ; Wed, 3 Mar 1999 15:12:32 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA16589 for ; Wed, 3 Mar 1999 14:16:12 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA28969 for glowbugs-outgoing; Wed, 3 Mar 1999 10:42:09 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.csonline.net (mail.csonline.net [206.101.113.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA28962 for ; Wed, 3 Mar 1999 10:42:05 -0800 (PST) Received: from lrichey.radioadv.com [206.101.123.138] by mail.csonline.net (SMTPD32-4.06) id A34C14940456; Wed, 03 Mar 1999 13:45:32 -0500 Received: by localhost with Microsoft MAPI; Wed, 3 Mar 1999 13:37:34 -0500 Message-ID: <01BE657A.FE838440.lee@radioadv.com> From: Lee Richey To: "'Brad Hernlem'" , "glowbugs@piobaire.mines.uidaho.edu" Subject: RE: GB> Inductance of Ignition Coil Date: Wed, 3 Mar 1999 13:37:32 -0500 X-Mailer: Microsoft Internet E-mail/MAPI - 8.0.0.4211 Encoding: 22 TEXT Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hmm...., that doesn't seem too bad. You would be getting approx 240K impedance at 990 hz in exchange for 9K DC resistance. -Lee WA3FIY- -----Original Message----- From: Brad Hernlem [SMTP:alihernlem@hotmail.com] Sent: Wednesday, March 03, 1999 10:55 AM To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Inductance of Ignition Coil According to my calculations, using a 990 Hz test frequency, my Japanese 12V ignition coil (for electronic ignition) has an inductance of about 40 Henries. However, the DC resistance was 9 K ohm. I haven't tried it as a coupling choke but that DC resistance seems high for what it is worth. Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 18:39:47 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA15695 for ; Wed, 3 Mar 1999 18:39:47 -0500 Received: from piobaire.mines.uidaho.edu (piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA18542 for ; Wed, 3 Mar 1999 17:43:42 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA01067 for glowbugs-outgoing; Wed, 3 Mar 1999 14:00:18 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from cronus.oanet.com (root@cronus.oanet.com [204.209.13.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA01062 for ; Wed, 3 Mar 1999 14:00:13 -0800 (PST) Received: from ve6nap (dialin155.edm.oa.net [207.153.26.157]) by cronus.oanet.com (8.9.1/8.9.1) with SMTP id OAA06014; Wed, 3 Mar 1999 14:59:40 -0700 (MST) Message-ID: <003101be65c1$b9dcc760$9d1a99cf@ve6nap> From: "Gerald Caouette" To: Cc: Subject: GB> F. S. Jan 5933 Tubes Date: Wed, 3 Mar 1999 15:03:48 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Just got my hands on another lot of ECG / Jan 5933 New in white box vacuum tubes These are a military spec direct replacement for the 807 tube.. Priced as follows in US dollars Shipping extra.. 1 to 4 tubes $8.00 each 5 to 9 tubes $6.50 each 10 to 50 tubes $5.00 each email if intrested to ve6nap@oanet.com Terms Payment by US postal M.O in advance of shipment payable to Gerald G. Caouette 9116-79 Street Edmonton, Alberta, Canada T6C 2R4 (780)-465-3082 eve Note : Tubes can be tested prior to shipment - on request - No additional Charge. From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 3 23:52:47 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA15896 for ; Wed, 3 Mar 1999 23:52:46 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA29162 for ; Wed, 3 Mar 1999 22:56:38 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA04059 for glowbugs-outgoing; Wed, 3 Mar 1999 19:21:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.hits.net (earthcenter.com [206.127.244.135]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA04054 for ; Wed, 3 Mar 1999 19:21:54 -0800 (PST) Received: from 206.127.244.112 (excalibur46.hits.net [206.127.244.112]) by mail.hits.net (8.9.1a/8.8.5) with SMTP id RAA12833; Wed, 3 Mar 1999 17:20:46 -1000 (HST) Message-ID: <36DDF1D8.C6D@hits.net> Date: Wed, 03 Mar 1999 16:37:12 -1000 From: Peter Demmer Reply-To: ampruss@hits.net Organization: AMPRUSS Co. X-Mailer: Mozilla 3.01 (Macintosh; I; 68K) MIME-Version: 1.0 To: Ken Gordon CC: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Regennie chokes... References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Ken Gordon wrote: > > Should you be so inclined to build a regenerative receiver like the OT > did, you will find reference to a large choke, somewhere on the order of > 500 to 1000 Henries. I have been mystified, up until now, about how one > could get such a choke these days. > > Well, a few minutes ago, I was re-reading my copy of the Lindsay book > "Those Great Old Handbook Receivers" and discovered a couple of things I > missed the first time through. > > In at least one receiver shown in the 1929 section of the book, mention is > made of using a Ford spark coil secondary as the choke. Suddenly it dawned > on me that we could use ignition spark coils for that purpose. I > know that most ignition systems nowadays dont'use an ignition coil > anymore, but any decent auto parts store should still be able to get them > for older cars. > > Does anyone here know what the actual value of that might be? > > I'll bet it is pretty big! > > Ken W7EKB Peter wrote; Greetings Ken and the GB Gang. Just today, finished a piece about my first ever visit from a FCC field engineer out to this farm near Stillwater, MN. I built a Code practice osicillator (CPO). using a Ford model "T" coil, four dry cells, a Gieger-Muiller spectrographic source tube (borrowed from the high school science teacher) a large borrowed capacitor from a Nothern States Power Company dump and wired it all up as a quinched viberator circuit. It sounded so much better on my regenerative receiver then that raspy old buzzer. Did I forget to mention that the closest steam radiator ground connection was 40 plus feet away. Any how, I only had to swear on the family good book never to use this aperatus again. Seems I had built an all band transmitter that was monitored in three states. I practiced diligently nightly with an imaginary fellow using the text from some old dog eared radio craft magazines. I even signed with my name, QTH and VA when closing down. Just like the real amateurs. Well when I was 11 years old I took learning the code and being prepaired seriously. So, for any one considering 4 PDT switching the subject coil, grounding the RCVR antenna connection and one end of the primary and secondary. And oh, did I forget to mention the HV cap and a string of NE51 lamps switched off to the long wire? Or was that suppossed to read "off of the long wire? Sorry about that. As an aside to being side tracked. Has any one considered the HV ballast transformers used in 40 watt or larger fluorescent lights to be used as multi-Henry chokes? From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 4 00:00:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA15929 for ; Thu, 4 Mar 1999 00:00:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA31497 for ; Wed, 3 Mar 1999 23:04:39 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA04311 for glowbugs-outgoing; Wed, 3 Mar 1999 19:40:42 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from cronus.oanet.com (root@cronus.oanet.com [204.209.13.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA04306 for ; Wed, 3 Mar 1999 19:40:38 -0800 (PST) Received: from ve6nap (dialin350.edm.oa.net [207.153.27.98]) by cronus.oanet.com (8.9.1/8.9.1) with SMTP id UAA03947 for ; Wed, 3 Mar 1999 20:39:45 -0700 (MST) Message-ID: <004f01be65f1$3e252ce0$621b99cf@ve6nap> From: "Gerald Caouette" To: Subject: GB> F. S. Jan 5933 Tubes Date: Wed, 3 Mar 1999 20:43:57 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO OPPS sorry for the previous HTML posting >Just got my hands on another lot of ECG / Jan 5933 New in white box vacuum >tubes >These are a military spec direct replacement for the 807 tube.. > >Priced as follows in US dollars Shipping extra.. > >1 to 4 tubes $8.00 each >5 to 9 tubes $6.50 each >10 to 50 tubes $5.00 each > > >email if intrested >to >ve6nap@oanet.com > > >Terms >Payment by US postal M.O in advance of shipment >payable to >Gerald G. Caouette >9116-79 Street >Edmonton, Alberta, Canada >T6C 2R4 >(780)-465-3082 eve > >Note : Tubes can be tested prior to shipment - on request - No additional >Charge. > > > > From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 4 03:44:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA16046 for ; Thu, 4 Mar 1999 03:44:13 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA05430 for ; Thu, 4 Mar 1999 02:48:17 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA07293 for glowbugs-outgoing; Wed, 3 Mar 1999 23:36:41 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from irene.ctv.es (irene.ctv.es [212.25.129.13]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA07288 for ; Wed, 3 Mar 1999 23:36:37 -0800 (PST) Received: from LAB_2.fermax.es (ctv21225142049.ctv.es [212.25.142.49]) by irene.ctv.es (8.9.3/8.9.1) with SMTP id IAA29861; Thu, 4 Mar 1999 08:34:34 +0100 (MET) Message-Id: <3.0.1.32.19990304083611.006b38a4@192.168.0.1> X-Sender: eb5agv#pop.ctv.es@192.168.0.1 X-Mailer: Windows Eudora Light Version 3.0.1 (32) Date: Thu, 04 Mar 1999 08:36:11 +0100 To: homebrew@qth.net, "Glowbugs List" From: "JOSE V. GAVILA (EB5AGV/EC5AAU)" Subject: GB> * CDial: latest news and more ideas * Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello! I have been doing some numbers and can offer the custom made CDials at an introductory price of US $15 or US $12 for 2 or more units (plus shipping). I have updated the information in my WEB page accordingly: http://www.geocities.com/SiliconValley/6992/cdial.htm ** MORE IDEAS! ** I have been toying with the idea of doing some 'linear' (not round as a CDial) dial scales. I can use metacrilate or lexan as a support. Such an engraved dial, conveniently lighted (by the edges), could be very nice looking. I can also engrave dual color plastic front panels, using a two layer plastic so, when you engrave the surface, you get the second color for the engraved parts. The milling machine controller front panel is done that way and it looks really nice. Apart of the engraving, there is the possibility to cut the front panel or dial and make any needed holes. Please, I would like to hear from you if you find anything of this interesting or you have any other idea or comment. Thanks and best regards. JOSE ------------------------------------------------------------ 73 EB5AGV / EC5AAU JOSE V. GAVILA Ausias March 46, 15 46910 Benetusser - VALENCIA SPAIN ** VISIT MY VINTAGE RADIO SITE - updated 2-March-1999 *** http://www.geocities.com/SiliconValley/6992/ e-mail: eb5agv@ctv.es & eb5agv@amsat.org From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 4 11:27:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA16331 for ; Thu, 4 Mar 1999 11:27:29 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA15202 for ; Thu, 4 Mar 1999 10:31:37 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA10294 for glowbugs-outgoing; Thu, 4 Mar 1999 07:12:10 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.rdc1.az.home.com (imail@ha1.rdc1.az.home.com [24.1.240.66]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA10289 for ; Thu, 4 Mar 1999 07:12:06 -0800 (PST) Received: from CX281231-A ([24.1.231.97]) by mail.rdc1.az.home.com (InterMail v4.00.03 201-229-104) with SMTP id <19990304151153.SVZG21269.mail.rdc1.az.home.com@CX281231-A> for ; Thu, 4 Mar 1999 07:11:53 -0800 Message-Id: <3.0.5.32.19990304081130.007ef410@mail> X-Sender: wturansky@mail X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Thu, 04 Mar 1999 08:11:30 -0700 To: glowbugs@piobaire.mines.uidaho.edu From: Walt Turansky Subject: GB> Phoenix Xtals Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I've lost the email address for John at Phoenix Crystals. Can someone send it to me? 73 de KW7WT, Walt From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 4 12:56:30 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA16381 for ; Thu, 4 Mar 1999 12:56:26 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA09214 for ; Thu, 4 Mar 1999 12:00:37 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA11388 for glowbugs-outgoing; Thu, 4 Mar 1999 08:42:53 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd128.hotmail.com [207.82.252.192]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA11378 for ; Thu, 4 Mar 1999 08:42:49 -0800 (PST) Received: (qmail 13826 invoked by uid 0); 4 Mar 1999 16:42:02 -0000 Message-ID: <19990304164202.13822.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Thu, 04 Mar 1999 08:41:57 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: lee@radioadv.com Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> RE: GB- Inductance of Ignition Coil Date: Thu, 04 Mar 1999 08:41:57 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Yes, it doesn't sound too bad. The actual values that I measured were: DC Resistance: 8.97 Kohms Series Res. V(res) V(tot) Calculated XL -------------------------------------------- 99.1 Kohm 1.60 4.50 256 Kohm 217 Kohm 2.75 4.50 274 Kohm 328 Kohm 3.40 4.50 272 Kohm The actual Henry value from these numbers is slightly higher but I rounded down to 40 H. The problem that I have with the DC resistance is that the main reason for using inductive coupling as opposed to resistance coupling is that the latter requires higher plate supply voltages because of the drop through the resistor. With the ignition coil I would be losing 9 V for every 1 mA of plate current. In the regenerator the plate current would probably be on that order, so if I am using batteries I waste one 9 V just to feed the ignition coil. However, if that were all I had I might use it. Brad >Hmm...., that doesn't seem too bad. You would be getting >approx 240K impedance at 990 hz in exchange for 9K DC >resistance. > >-Lee WA3FIY- > >-----Original Message----- >From: Brad Hernlem [SMTP:alihernlem@hotmail.com] >Sent: Wednesday, March 03, 1999 10:55 AM >To: glowbugs@piobaire.mines.uidaho.edu >Subject: GB> Inductance of Ignition Coil > >According to my calculations, using a 990 Hz test frequency, my Japanese >12V ignition coil (for electronic ignition) has an inductance of about >40 Henries. However, the DC resistance was 9 K ohm. I haven't tried it >as a coupling choke but that DC resistance seems high for what it is >worth. > >Brad > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From tshannon@WPI.EDU Thu Mar 4 13:21:02 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA16448 for ; Thu, 4 Mar 1999 13:21:02 -0500 Received: from reno.WPI.EDU (root@reno.WPI.EDU [130.215.24.65]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA18326 for ; Thu, 4 Mar 1999 12:25:14 -0500 (EST) Received: from localhost (tshannon@localhost [127.0.0.1]) by reno.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA24641 for ; Thu, 4 Mar 1999 12:25:13 -0500 (EST) Date: Thu, 4 Mar 1999 12:25:12 -0500 (EST) From: "Thomas A. Shannon" To: jski@blargh.wpi.edu Subject: Re: A few final questions In-Reply-To: <199903040454.XAA15904@blargh.wpi.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Status: RO number is TAS 5600, only need one copy, but if you want a copy, make more for yourself. Need not be bound. TAS Thomas A. Shannon Professor of Religion and Social Ethics Department of Humanities and Arts Worcester Polytechnic Institute 100 Institute Rd. Worcester, MA 01609 Office phone: 508.831.5468 email: tshannon@wpi.edu fax: 508.831.5932 From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 4 13:59:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA16469 for ; Thu, 4 Mar 1999 13:59:04 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA31130 for ; Thu, 4 Mar 1999 13:03:13 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA11949 for glowbugs-outgoing; Thu, 4 Mar 1999 09:29:27 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA11944 for ; Thu, 4 Mar 1999 09:29:19 -0800 (PST) Received: from wb8mhe (circ-ras2-2-cs-3.dial.bright.net [209.143.14.132]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id MAA22703; Thu, 4 Mar 1999 12:27:20 -0500 (EST) Message-ID: <004e01be6664$3a7ebde0$840e8fd1@wb8mhe> From: "Dick Blaney" To: "Brad Hernlem" , Cc: Subject: Re: GB> RE: GB- Inductance of Ignition Coil Date: Thu, 4 Mar 1999 12:27:04 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Anyone out there ever measure the DC resistance of the choke in those asphault potted National Audio Couplers in the SW-3? Bet it's way up there, too. You don't get something for nothing, and all large inductances have resistance. I don't know about the off shore coil you measured, (Japanese, I think you said), but the Ford wooden box Model "T" coils did work FB. Made the 24A regen right selective when you put the right capacitor across it. It would be interesting if someone is restoring or wording on one of those National rigs would check it out. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: Brad Hernlem To: lee@radioadv.com Cc: glowbugs@piobaire.mines.uidaho.edu Date: Thursday, March 04, 1999 12:02 PM Subject: GB> RE: GB- Inductance of Ignition Coil > >Yes, it doesn't sound too bad. The actual values that I measured were: > >DC Resistance: 8.97 Kohms > >Series Res. V(res) V(tot) Calculated XL >-------------------------------------------- >99.1 Kohm 1.60 4.50 256 Kohm >217 Kohm 2.75 4.50 274 Kohm >328 Kohm 3.40 4.50 272 Kohm > >The actual Henry value from these numbers is slightly higher but I >rounded down to 40 H. > >The problem that I have with the DC resistance is that the main reason >for using inductive coupling as opposed to resistance coupling is that >the latter requires higher plate supply voltages because of the drop >through the resistor. With the ignition coil I would be losing 9 V for >every 1 mA of plate current. In the regenerator the plate current would >probably be on that order, so if I am using batteries I waste one 9 V >just to feed the ignition coil. > >However, if that were all I had I might use it. > >Brad > > >>Hmm...., that doesn't seem too bad. You would be getting >>approx 240K impedance at 990 hz in exchange for 9K DC >>resistance. >> >>-Lee WA3FIY- >> >>-----Original Message----- >>From: Brad Hernlem [SMTP:alihernlem@hotmail.com] >>Sent: Wednesday, March 03, 1999 10:55 AM >>To: glowbugs@piobaire.mines.uidaho.edu >>Subject: GB> Inductance of Ignition Coil >> >>According to my calculations, using a 990 Hz test frequency, my >Japanese >>12V ignition coil (for electronic ignition) has an inductance of about >>40 Henries. However, the DC resistance was 9 K ohm. I haven't tried it >>as a coupling choke but that DC resistance seems high for what it is >>worth. >> >>Brad >> >>______________________________________________________ >>Get Your Private, Free Email at http://www.hotmail.com >> >> > > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com > From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 01:10:33 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA16891 for ; Fri, 5 Mar 1999 01:10:33 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA10478 for ; Fri, 5 Mar 1999 00:14:50 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA19005 for glowbugs-outgoing; Thu, 4 Mar 1999 20:49:53 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from harrier.prod.itd.earthlink.net (harrier.prod.itd.earthlink.net [207.217.120.12]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA19000 for ; Thu, 4 Mar 1999 20:49:49 -0800 (PST) Received: from default (pool021-max5.ds11-ca-us.dialup.earthlink.net [209.178.10.221]) by harrier.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id UAA14277 for ; Thu, 4 Mar 1999 20:49:02 -0800 (PST) Message-Id: <3.0.5.32.19990304204509.017ac660@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Thu, 04 Mar 1999 20:45:09 -0800 To: glowbugs@piobaire.mines.uidaho.edu From: Jim Hill Subject: GB> Model T Coil Inductance; SW-3 choke Resistance Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I measured my Model T coil secondary with an ESI-250DA RLC bridge. L = 10.608H, Qparallel = about 10. R (measured with a Fluke DMM) = 2875 ohms. My coil is a replacement model T coil, purchased from Montgomery Ward about 15 to 20 years ago. I checked the bridge by connecting it to a General Radio decade inductor set to 5 H, and the results were close. Measurements were made at 1 kHz. If you have a Model T coil, here are a couple of interesting experiments. Both will impress young kids. Connect the hot end of the secondary to a 200 watt clear light bulb. When the lights are turned off, you can see a pretty blue discharge. Put a bare or enameled magnet wire around the wide portion, and connect the wire to the common terminal. You will see a number of arc's inside from the filament supports to the wire. The resistance of the SW-3 plate inductor is 8.533k, measured with the Fluke DMM. I compared this resistance with another SW-3 plate inductor in the past, and remember that the readings were close. I'll measure some audio transformer secondaries tomorrow. 73's Jim From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 02:07:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA16930 for ; Fri, 5 Mar 1999 02:07:10 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA14367 for ; Fri, 5 Mar 1999 01:11:28 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA19706 for glowbugs-outgoing; Thu, 4 Mar 1999 21:55:18 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id VAA19700 for ; Thu, 4 Mar 1999 21:55:10 -0800 (PST) Received: from default (seiwhale21.pcola.gulf.net [208.22.198.36]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id XAA08447 for ; Thu, 4 Mar 1999 23:54:23 -0600 (CST) Message-ID: <028101be66cc$f8d93aa0$9b46a0cd@default> Reply-To: "rbigg" From: "rbigg" To: Subject: Fw: GB> Model T Coil Inductance; SW-3 choke Resistance Date: Thu, 4 Mar 1999 23:56:40 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Jim is right about the use of a model T spark coil hi voltage section to have some fun with light bulbs. It is really a fireworks display when you touch the hot lead to the center of a candescent lamp. Also works with fluorescent bulbs. Big caution, however---use highly insulated leads for the hi voltage probes. Those pesky model T coils can arc through many of the more common thinly insulated wires to the holder. You'll get a real charge out of that one. Also keep your biscuit hooks well clear of any metal surfaces which are part of your arc demo. Depending on how much dc you run to the vibrator, the air gap arc on the hi voltage electrode side is about 1". Don't put more than about 7 or 8vdc on the vibrator, as you could burn out the low side coil. -----Original Message----- From: Jim Hill To: glowbugs@piobaire.mines.uidaho.edu Date: Thursday, March 04, 1999 11:20 PM Subject: GB> Model T Coil Inductance; SW-3 choke Resistance >I measured my Model T coil secondary with an ESI-250DA RLC bridge. > >L = 10.608H, Qparallel = about 10. R (measured with a Fluke DMM) = 2875 >ohms. My coil is a replacement model T coil, purchased from Montgomery Ward >about 15 to 20 years ago. I checked the bridge by connecting it to a >General Radio decade inductor set to 5 H, and the results were close. >Measurements were made at 1 kHz. > >If you have a Model T coil, here are a couple of interesting experiments. >Both will impress young kids. > > Connect the hot end of the secondary to a 200 watt clear light bulb. When >the lights are turned off, you can see a pretty blue discharge. > > Put a bare or enameled magnet wire around the wide portion, and connect >the wire to the common terminal. You will see a number of arc's inside from >the filament supports to the wire. > >The resistance of the SW-3 plate inductor is 8.533k, measured with the >Fluke DMM. I compared this resistance with another SW-3 plate inductor in >the past, and remember that the readings were close. I'll measure some >audio transformer secondaries tomorrow. >73's Jim From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 14:47:27 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA17334 for ; Fri, 5 Mar 1999 14:47:26 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA27162 for ; Fri, 5 Mar 1999 13:51:56 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA26404 for glowbugs-outgoing; Fri, 5 Mar 1999 10:22:22 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from tntech.edu (SYSTEM@gemini.tntech.edu [149.149.11.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA26398 for ; Fri, 5 Mar 1999 10:22:16 -0800 (PST) Received: from tetrode ([149.149.42.10]) by gemini.tntech.edu (PMDF V5.2-29 #30682) with SMTP id <01J8GYSFA2A28X1ILB@gemini.tntech.edu> for glowbugs@piobaire.mines.uidaho.edu; Fri, 5 Mar 1999 12:21:47 CST Date: Fri, 05 Mar 1999 12:16:14 -0600 From: Conard Murray Subject: GB> Anybody need a Ranger panel? To: Glowbugs List Message-id: <000501be6734$41d83000$0a2a9595@ece.tntech.edu> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V5.00.0810.800 X-Mailer: Microsoft Outlook Express 5.00.0810.800 Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit X-Priority: 3 X-MSMail-priority: Normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hey everyone, While cleaning out the basement I found a front panel for a Johnson Ranger. It needs repainting, but looks ok otherwise. I will trade it for just about anything, especially 5933's to help feed the SRT-14. Does anyone need 6AK5's or 6AL5's? How about 6AG7's or 6G6's? I got those things everywhere. 73, Conard, WS4S Cookeville, TN Moving across town into a new house From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 14:47:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA17330 for ; Fri, 5 Mar 1999 14:47:04 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA24591 for ; Fri, 5 Mar 1999 13:51:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA26426 for glowbugs-outgoing; Fri, 5 Mar 1999 10:25:03 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom18.netcom.com (tomrice@netcom18.netcom.com [192.100.81.131]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA26418 for ; Fri, 5 Mar 1999 10:24:59 -0800 (PST) Received: (from tomrice@localhost) by netcom18.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id KAA10991 for glowbugs@piobaire.mines.uidaho.edu; Fri, 5 Mar 1999 10:24:38 -0800 (PST) From: "Tom R. Rice" Message-Id: <199903051824.KAA10991@netcom18.netcom.com> Subject: GB> Model T Coil fun...... To: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) Date: Fri, 5 Mar 1999 10:24:38 -0800 (PST) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > > If you have a Model T coil, here are a couple of interesting experiments. > Both will impress young kids. > Albert Morgan's book "Things a Boy Can Do With Electricity" has a lot of fun stuff with a T-coil. I guess Geissler tubes are hard to find these days, but there're lotsa substitutes, neon sign tubes, for example. 73 de WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 15:30:03 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA17359 for ; Fri, 5 Mar 1999 15:30:03 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA05715 for ; Fri, 5 Mar 1999 14:34:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA27249 for glowbugs-outgoing; Fri, 5 Mar 1999 11:09:50 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo27.mx.aol.com (imo27.mx.aol.com [198.81.17.71]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA27243 for ; Fri, 5 Mar 1999 11:09:39 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo27.mx.aol.com (IMOv19.3) id wSTWa20330 for ; Fri, 5 Mar 1999 14:08:21 -0500 (EST) Message-ID: <8f92e1bf.36e02ba5@aol.com> Date: Fri, 5 Mar 1999 14:08:21 EST To: Glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: Re: GB> Model T Coil Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Shades of Tesla!! Boy, you guys are makin' me jealous with the spark-coil tricks! ;>) Can those things still be gotten thru J.C.Whitney, or better still, can they be home constructed? gary, wd4nka From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 16:21:25 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA17458 for ; Fri, 5 Mar 1999 16:21:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA14153 for ; Fri, 5 Mar 1999 15:25:50 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA27843 for glowbugs-outgoing; Fri, 5 Mar 1999 11:53:07 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd88.hotmail.com [207.82.252.152]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA27838 for ; Fri, 5 Mar 1999 11:53:04 -0800 (PST) Received: (qmail 15661 invoked by uid 0); 5 Mar 1999 19:52:12 -0000 Message-ID: <19990305195212.15660.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Fri, 05 Mar 1999 11:52:12 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: Wd4nka@aol.com Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- Model T Coil Date: Fri, 05 Mar 1999 11:52:12 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >Shades of Tesla!! > >Boy, you guys are makin' me jealous >with the spark-coil tricks! ;>) > >Can those things still be gotten thru >J.C.Whitney, or better still, can they >be home constructed? > >gary, wd4nka > I don't know about the genuine original Model T coils but plain old ordinary ignition coils are ubiquitous. If you just want one to play around with your best bet is to go to the nearest junk yard and yank one from the nearest heap. The one I have was from a garage sale (about $0.25 or something like that). BTW, for messing around with sparks, there was an article in the Journal of Chemical Education a few years ago describing how to make a solid state "Tesla Coil" out of one of these things using a 555 chip and a power transistor to drive the ignition coil. I used to have loads of fun frying bugs and detonating cans of gasoline fumes when I was a kid. Dad got me a coil from the junk yard. I don't think he was ever aware of the gasoline use, though :-). Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 17:34:44 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA17511 for ; Fri, 5 Mar 1999 17:34:43 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA26299 for ; Fri, 5 Mar 1999 16:39:06 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA28707 for glowbugs-outgoing; Fri, 5 Mar 1999 13:11:01 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp11.bellglobal.com (smtp11.bellglobal.com [204.101.251.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA28701 for ; Fri, 5 Mar 1999 13:10:54 -0800 (PST) Received: from mrelay ([192.168.1.119]) by smtp11.bellglobal.com (8.8.5/8.8.5) with ESMTP id QAA04819 for ; Fri, 5 Mar 1999 16:12:24 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F8500K5344R7O@mrelay.bellglobal.com> for glowbugs@piobaire.mines.uidaho.edu; Fri, 5 Mar 1999 16:10:04 -0500 (EST) Date: Fri, 05 Mar 1999 21:08:20 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: Re: GB> Re: GB- Model T Coil To: alihernlem@hotmail.com Cc: Wd4nka@aol.com, glowbugs@piobaire.mines.uidaho.edu Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) References: <19990305195212.15660.qmail@hotmail.com> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO A coil with a 555, eh? sounds like a couple of devices called "spark timers" that I tried to resurrect a while back. Can be found in many high school physics (science) labs... quite often the coil is burned out from improper usage... might be a source of discarded but usable equipment. - Bill H. From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 18:05:28 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA17545 for ; Fri, 5 Mar 1999 18:05:27 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA00373 for ; Fri, 5 Mar 1999 17:09:55 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA28932 for glowbugs-outgoing; Fri, 5 Mar 1999 13:34:14 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.ils.net (server1.ils.net [209.135.103.11]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA28926 for ; Fri, 5 Mar 1999 13:34:11 -0800 (PST) Received: from modem108.ils.net (modem108.ils.net [209.135.103.108]) by mail.ils.net (8.8.8/8.8.8) with SMTP id QAA16064 for ; Fri, 5 Mar 1999 16:34:16 -0500 (EST) Date: Fri, 5 Mar 1999 16:34:16 -0500 (EST) Message-Id: <199903052134.QAA16064@mail.ils.net> X-Sender: toneri@mail.ils.net (Unverified) X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: glowbugs@piobaire.mines.uidaho.edu From: L & M Subject: GB> Value of Viking 2 and NC240D Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I am trying to find out how much these two items are worth. Value is a rather subjective thing when it comes to boatanchors but any help is worthwhile to me. Here is what they are: A National NC240D receiver with matching speaker. It has been in storage since the mid 1950's but it works. It needs new electrolytics but other than that and a good cleaning it looks and works fine. The cabinet is in very good condition for its age with a few scratches here and there. The dial is in very good condition and readable. The matching speaker is in excellent condition. The Viking 2 is also in very good physical condition. It is all original, no modifications. I did not power it up and it probably needs new electrolytics as well. Other than the dust inside, it looks excellent. Any help on determing a price/value of these items is appreciated. 73, Mike VE3FGU ********************************************************** Mike (VE3FGU) & Lynda Toneri E-mail: toneri@ils.net Keswick, Ontario 26' Nonsuch #196 "Maxicat" Webpages:http://www.geocities.com/heartland/meadows/8218 http://www.angelfire.com/on/ve3fgu *********************************************************** From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 18:19:41 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA17554 for ; Fri, 5 Mar 1999 18:19:40 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA02953 for ; Fri, 5 Mar 1999 17:23:31 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA29139 for glowbugs-outgoing; Fri, 5 Mar 1999 13:48:30 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from imo22.mx.aol.com (imo22.mx.aol.com [198.81.17.66]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA29131 for ; Fri, 5 Mar 1999 13:48:24 -0800 (PST) From: Wd4nka@aol.com Received: from Wd4nka@aol.com by imo22.mx.aol.com (IMOv19.3) id wHJNa12642 for ; Fri, 5 Mar 1999 16:47:19 -0500 (EST) Message-ID: Date: Fri, 5 Mar 1999 16:47:19 EST To: Glowbugs@piobaire.mines.uidaho.edu Mime-Version: 1.0 Subject: GB> Re: Coil Tricks Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: AOL 3.0 16-bit for Windows sub 38 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On a not-too-related note: James Connaut, in his well researched biography of T.A. Edison* tells a story on him as a young man, playing practical jokes with what was called a "Rummkorpf" coil, sort of an 1870's version of a Tesla coil. He would set one in the communal washing basin nearby where he worked as a telegrapher, and wait till several men would be wet up to their elbows. He'd throw the switch from the local line battery to this thing and watch the men jump ten feet in the air. How do we know about this?? Ol' Al entered it in his journal as an "experiment". . . . and i thought i was original, shocking fish with a telephone bell crank generator ;>) HI and 73 gary, wd4nka * "A Streak of Luck" James Connaut, 1981 From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 18:50:34 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA17574 for ; Fri, 5 Mar 1999 18:50:33 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA04777 for ; Fri, 5 Mar 1999 17:55:04 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA29769 for glowbugs-outgoing; Fri, 5 Mar 1999 14:24:45 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA29763 for ; Fri, 5 Mar 1999 14:24:41 -0800 (PST) Received: from wb8mhe (circ-ras1-3-cs-6.dial.bright.net [209.143.14.59]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id RAA01792; Fri, 5 Mar 1999 17:24:03 -0500 (EST) Message-ID: <008801be6756$d83123a0$3b0e8fd1@wb8mhe> From: "Dick Blaney" To: , "L & M" Cc: "Dick Blaney" Subject: Re: GB> Value of Viking 2 and NC240D Date: Fri, 5 Mar 1999 17:23:47 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Bry Carling, AF4K, keeps an extensive list of prices seen at various sales, auctions and other places and lists them at the URL below. http://www.mnsinc.com/bry/ham/boneyard.htm Hope it helps. 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: L & M To: glowbugs@piobaire.mines.uidaho.edu Date: Friday, March 05, 1999 5:13 PM Subject: GB> Value of Viking 2 and NC240D >I am trying to find out how much these two items are worth. Value is a >rather subjective thing when it comes to boatanchors but any help is >worthwhile to me. Here is what they are: > >A National NC240D receiver with matching speaker. It has been in storage >since the mid 1950's but it works. It needs new electrolytics but other than >that and a good cleaning it looks and works fine. The cabinet is in very >good condition for its age with a few scratches here and there. The dial is >in very good condition and readable. The matching speaker is in excellent >condition. > >The Viking 2 is also in very good physical condition. It is all original, no >modifications. I did not power it up and it probably needs new electrolytics >as well. Other than the dust inside, it looks excellent. > >Any help on determing a price/value of these items is appreciated. > >73, Mike VE3FGU >********************************************************** >Mike (VE3FGU) & Lynda Toneri E-mail: toneri@ils.net >Keswick, Ontario >26' Nonsuch #196 "Maxicat" >Webpages:http://www.geocities.com/heartland/meadows/8218 > http://www.angelfire.com/on/ve3fgu >*********************************************************** > From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 20:40:52 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA17630 for ; Fri, 5 Mar 1999 20:40:51 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA04046 for ; Fri, 5 Mar 1999 19:45:21 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA01108 for glowbugs-outgoing; Fri, 5 Mar 1999 16:17:56 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from camel7.mindspring.com (camel7.mindspring.com [207.69.200.57]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA01103 for ; Fri, 5 Mar 1999 16:17:53 -0800 (PST) Received: from default (user-37kb6m4.dialup.mindspring.com [207.69.154.196]) by camel7.mindspring.com (8.8.5/8.8.5) with SMTP id TAA27209 for ; Fri, 5 Mar 1999 19:17:21 -0500 (EST) Message-Id: <3.0.1.32.19990305191649.0069eba0@pop.mindspring.com> X-Sender: k4oah@pop.mindspring.com X-Mailer: Windows Eudora Light Version 3.0.1 (32) Date: Fri, 05 Mar 1999 19:16:49 -0500 To: glowbugs@piobaire.mines.uidaho.edu From: Garey Barrell Subject: GB> Re: GB- Model T Coil In-Reply-To: <19990305195212.15660.qmail@hotmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I guess it is a sign of our times, but a trick we used to pull with the Model T coil was to pass a cigarette through the spark path. Punched hundreds of tiny (invisible) holes in the paper and you could NOT smoke that cigarette!! Garey - K4OAH From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 21:46:09 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA17664 for ; Fri, 5 Mar 1999 21:46:05 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA21918 for ; Fri, 5 Mar 1999 20:50:39 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA01756 for glowbugs-outgoing; Fri, 5 Mar 1999 17:28:27 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA01751 for ; Fri, 5 Mar 1999 17:28:23 -0800 (PST) Received: from default (vaquita25.pcola.gulf.net [208.22.198.136]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id TAA22974 for ; Fri, 5 Mar 1999 19:27:45 -0600 (CST) Message-ID: <007201be6770$d337cc40$60c616d0@default> Reply-To: "rbigg" From: "rbigg" To: Subject: Fw: GB> Re: GB- Model T Coil Date: Fri, 5 Mar 1999 19:29:44 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO There is a lot of difference between an induction spark coil (which is the conventional thing we use with distributors/breakers), and the autoformer model T coil. The model T coil takes dc in, breaks it up through a vibrator assembly on top, and then transforms it to hi voltage "kinda" ac. The conventional coil used with breakers takes chopped dc from the distributor, and simply transforms that to hi voltage. The model T coil has a much hotter spark than the conventional. Your conventional coils have practically no current with the hi voltage. The model T coil has very high secondary voltage, and some current. Getting shocked by a model T coil will probably not damage you, but it sure does hurt. To play with a conventional spark coil, you'll have to use low voltage ac as input, to sub for breakers. -----Original Message----- From: Brad Hernlem To: Wd4nka@aol.com Cc: glowbugs@piobaire.mines.uidaho.edu Date: Friday, March 05, 1999 2:31 PM Subject: GB> Re: GB- Model T Coil > >>Shades of Tesla!! >> >>Boy, you guys are makin' me jealous >>with the spark-coil tricks! ;>) >> >>Can those things still be gotten thru >>J.C.Whitney, or better still, can they >>be home constructed? >> >>gary, wd4nka >> > >I don't know about the genuine original Model T coils but plain old >ordinary ignition coils are ubiquitous. If you just want one to play >around with your best bet is to go to the nearest junk yard and yank one >from the nearest heap. The one I have was from a garage sale (about >$0.25 or something like that). > >BTW, for messing around with sparks, there was an article in the Journal >of Chemical Education a few years ago describing how to make a solid >state "Tesla Coil" out of one of these things using a 555 chip and a >power transistor to drive the ignition coil. > >I used to have loads of fun frying bugs and detonating cans of gasoline >fumes when I was a kid. Dad got me a coil from the junk yard. I don't >think he was ever aware of the gasoline use, though :-). > >Brad > > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 5 23:45:12 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA17724 for ; Fri, 5 Mar 1999 23:45:11 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA03935 for ; Fri, 5 Mar 1999 22:49:46 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA02915 for glowbugs-outgoing; Fri, 5 Mar 1999 19:38:13 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA02909 for ; Fri, 5 Mar 1999 19:38:10 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id WAA05485 for ; Fri, 5 Mar 1999 22:38:26 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id WAA05148 for ; Fri, 5 Mar 1999 22:38:21 -0500 (EST) Date: Fri, 5 Mar 1999 22:38:19 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: Fw: GB> Re: GB- Model T Coil (fwd) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! In my misspent childhood, I did a couple of Science Fair exhibits about radio, employing Model T coils, a genuine induction coil borrowed from a science teacher, and a "modern" (1970s) coil from a car. Wish I still had the Model T coil, it was the genuine wood-cased article and worked like a champ! Quite a "hot" spark, as others have reported. It'll wake you right up and carries enough oomph to do serious harm if you take the hit across the torso The "modern" automobile coil was another story. Running it from a 6.3V filament transformer, it got pretty warm if the key was down very long at all. They're not rated for much of a duty cycle, and probably none too happy at 60 cycles. One of the classic also-rans at science fairs (because it is so easy) is a "Jacob's Ladder," the familiar horn-gap with arcs climbing up and extenguishing as the hot air rises. Usual power source for these is a neon-sign transformer. If you want to mess with high voltage, they're an easy source; but watch out, that's a lot of sizzle in that spark! (OSHA would've fainted--one year, there was a "high-voltage corner," with my small-size spark rigs, a Jacob's ladder, a *big* Tesla coil (4 811As driving the primary!) and a fellow with a 12V windcharger that drove a self-synchronizing inverter, 120 Hz, 60 cps ready to sell back to Power & Light when the winds were up, and all of it wide-open so's you could see how it worked. Mr. Windcharger won...but y'know, the judges were awfully jumpy in our little corner of the venue....) 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 00:09:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA17738 for ; Sat, 6 Mar 1999 00:09:18 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA04216 for ; Fri, 5 Mar 1999 23:13:55 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA03292 for glowbugs-outgoing; Fri, 5 Mar 1999 20:05:20 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA03287 for ; Fri, 5 Mar 1999 20:05:17 -0800 (PST) Received: from wb8mhe (circ-ras4-1-cs-17.dial.bright.net [205.212.154.198]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id XAA28158; Fri, 5 Mar 1999 23:04:35 -0500 (EST) Message-ID: <004801be6786$68a6e800$c69ad4cd@wb8mhe> From: "Dick Blaney" To: , "Garey Barrell" Cc: "Dick Blaney" Subject: Re: GB> Re: GB- Model T Coil Date: Fri, 5 Mar 1999 23:03:34 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Another Ford coil trick we did as kids, was to insert a spark plug through the side of a tailpipe, stop at an intersection, rev the motor and push the button to the coil, and there would be about a 6' blue & yellow flame shoot out back. Talk about a "glowbug". (had to get that in to keep on subject). 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: Garey Barrell To: glowbugs@piobaire.mines.uidaho.edu Date: Friday, March 05, 1999 7:47 PM Subject: GB> Re: GB- Model T Coil > > >I guess it is a sign of our times, but a trick we used to pull with the >Model T coil was to pass a cigarette through the spark path. Punched >hundreds of tiny (invisible) holes in the paper and you could NOT smoke >that cigarette!! > >Garey - K4OAH > From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 01:22:55 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA17818 for ; Sat, 6 Mar 1999 01:22:54 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA12173 for ; Sat, 6 Mar 1999 00:27:29 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA04009 for glowbugs-outgoing; Fri, 5 Mar 1999 21:18:04 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mailmx.micron.net (mailmx.micron.net [198.60.253.39]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id VAA04004 for ; Fri, 5 Mar 1999 21:18:00 -0800 (PST) Received: from oemcomputer (cboi13p73.boi.micron.net [204.229.100.178]) by mailmx.micron.net (8.8.5/8.8.5) with SMTP id WAA21798 for ; Fri, 5 Mar 1999 22:17:16 -0700 (MST) Message-Id: <3.0.6.32.19990305221733.007a5550@pophost.micron.net> X-Sender: kj7f@pophost.micron.net X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Fri, 05 Mar 1999 22:17:33 -0700 To: glowbugs@piobaire.mines.uidaho.edu From: Terry Dobler Subject: GB> Re: GB- Model T Coil In-Reply-To: <004801be6786$68a6e800$c69ad4cd@wb8mhe> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Gee, you guys are crazy (meant in a nice way)! Makes the home brew "Flame Thrower" that we made seem tame. Makes me wonder what my kids are up to that I don't know about. Probably just as well I don't know, at least I can sleep at night this way. Terry ----------------------------------------------------------------------- One of the classic also-rans at science fairs (because it is so easy) is a "Jacob's Ladder," the familiar horn-gap with arcs climbing up and extenguishing as the hot air rises. Usual power source for these is a neon-sign transformer. If you want to mess with high voltage, they're an easy source; but watch out, that's a lot of sizzle in that spark! (OSHA would've fainted--one year, there was a "high-voltage corner," with my small-size spark rigs, a Jacob's ladder, a *big* Tesla coil (4 811As driving the primary!) and a fellow with a 12V windcharger that drove a self-synchronizing inverter, 120 Hz, 60 cps ready to sell back to Power & Light when the winds were up, and all of it wide-open so's you could see how it worked. Mr. Windcharger won...but y'know, the judges were awfully jumpy in our little corner of the venue....) 73, --Bobbi From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 02:36:10 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA17904 for ; Sat, 6 Mar 1999 02:36:09 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA30359 for ; Sat, 6 Mar 1999 01:40:48 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA04917 for glowbugs-outgoing; Fri, 5 Mar 1999 22:30:29 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA04912 for ; Fri, 5 Mar 1999 22:30:25 -0800 (PST) Received: from default (seaotter22.pcola.gulf.net [205.160.71.133]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id AAA16259 for ; Sat, 6 Mar 1999 00:29:39 -0600 (CST) Message-ID: <00b601be679b$01aa91a0$60c616d0@default> Reply-To: "rbigg" From: "rbigg" To: Subject: Fw: GB> Re: GB- Model T Coil Date: Sat, 6 Mar 1999 00:31:39 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Dick--you were one of the true original Glowbugs. Remember--most of those deals where we lit of the big old "blooies" exhaust tips with the model T coils were the old flathead v-8s and flathead hot water straight sixes. -----Original Message----- From: Dick Blaney To: glowbugs@piobaire.mines.uidaho.edu ; Garey Barrell Cc: Dick Blaney Date: Friday, March 05, 1999 10:16 PM Subject: Re: GB> Re: GB- Model T Coil >Another Ford coil trick we did as kids, was to insert a spark plug through >the side of a tailpipe, stop at an intersection, rev the motor and push the >button to the coil, and there would be about a 6' blue & yellow flame shoot >out back. Talk about a "glowbug". (had to get that in to keep on subject). >73 de >Dick, WB8MHE >wb8mhe@bright.net > >-----Original Message----- >From: Garey Barrell >To: glowbugs@piobaire.mines.uidaho.edu >Date: Friday, March 05, 1999 7:47 PM >Subject: GB> Re: GB- Model T Coil > > >> >> >>I guess it is a sign of our times, but a trick we used to pull with the >>Model T coil was to pass a cigarette through the spark path. Punched >>hundreds of tiny (invisible) holes in the paper and you could NOT smoke >>that cigarette!! >> >>Garey - K4OAH >> From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 03:03:22 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA17933 for ; Sat, 6 Mar 1999 03:03:22 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA14374 for ; Sat, 6 Mar 1999 02:08:01 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA05460 for glowbugs-outgoing; Fri, 5 Mar 1999 23:01:36 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA05455 for ; Fri, 5 Mar 1999 23:01:32 -0800 (PST) Received: from default (minke40.pcola.gulf.net [205.160.71.55]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id BAA19518 for ; Sat, 6 Mar 1999 01:00:44 -0600 (CST) Message-ID: <00e501be679f$58ef6ea0$60c616d0@default> Reply-To: "rbigg" From: "rbigg" To: Subject: Fw: GB> Re: GB- Model T Coil Date: Sat, 6 Mar 1999 01:02:45 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The other way you could get a really great muffler blowing lightoff was to let off on the gas (called racking 'em back), let the unburned gas flow through the cylinders to the mufflers, with a little getting to the tailpipe tips, and then hit the pushbutton switch on the model T coil. This was a really good way to get rid of a "blown" glass pack that was rusted out. -----Original Message----- From: Dick Blaney To: glowbugs@piobaire.mines.uidaho.edu ; Garey Barrell Cc: Dick Blaney Date: Friday, March 05, 1999 10:16 PM Subject: Re: GB> Re: GB- Model T Coil >Another Ford coil trick we did as kids, was to insert a spark plug through >the side of a tailpipe, stop at an intersection, rev the motor and push the >button to the coil, and there would be about a 6' blue & yellow flame shoot >out back. Talk about a "glowbug". (had to get that in to keep on subject). >73 de >Dick, WB8MHE >wb8mhe@bright.net > >-----Original Message----- >From: Garey Barrell >To: glowbugs@piobaire.mines.uidaho.edu >Date: Friday, March 05, 1999 7:47 PM >Subject: GB> Re: GB- Model T Coil > > >> >> >>I guess it is a sign of our times, but a trick we used to pull with the >>Model T coil was to pass a cigarette through the spark path. Punched >>hundreds of tiny (invisible) holes in the paper and you could NOT smoke >>that cigarette!! >> >>Garey - K4OAH >> From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 03:50:33 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA17960 for ; Sat, 6 Mar 1999 03:50:32 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA20261 for ; Sat, 6 Mar 1999 02:55:12 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA06543 for glowbugs-outgoing; Fri, 5 Mar 1999 23:46:29 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from gull.prod.itd.earthlink.net (gull.prod.itd.earthlink.net [207.217.120.85]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA06536 for ; Fri, 5 Mar 1999 23:46:25 -0800 (PST) Received: from default (pool032-max3.mpop2-ca-us.dialup.earthlink.net [207.217.240.132]) by gull.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id XAA02445 for ; Fri, 5 Mar 1999 23:45:38 -0800 (PST) Message-Id: <3.0.5.32.19990305234142.01576ec0@earthlink.net> X-Sender: jshillw6ivw@earthlink.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (32) Date: Fri, 05 Mar 1999 23:41:42 -0800 To: glowbugs@piobaire.mines.uidaho.edu From: Jim Hill Subject: GB> More Model T Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Regarding finding Model T coils: Remember, they are used in model T's, which is a fairly common antique car. A number of years ago when I did more car repair, one of the managers of the local auto parts store had a couple of model T's and belonged to a local model T club. He used to try to get me interested in T's, but work demands, square dancing and a garage full of radio gear discouraged me. However, I got the impression that model T parts were fairly common and some were still manufactured for collectors. I would suggest looking for car collector newsgroups and asking there. Try searching for Ford, Model T, antique car, etc using Dejanews. Regarding using modern ignition coils: You need the vibrator contacts to generate a really high voltage. Remember e = L di/dt, where di/dt indicates the rate of change of current for a given time. Opening a switch contact provides a much faster rate of change than a 60 hz sine wave. 73's Jim From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 12:58:45 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA18231 for ; Sat, 6 Mar 1999 12:58:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA17088 for ; Sat, 6 Mar 1999 12:03:31 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA11576 for glowbugs-outgoing; Sat, 6 Mar 1999 08:57:17 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from admin.aurora.edu (admin.aurora.edu [192.203.224.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA11571 for ; Sat, 6 Mar 1999 08:57:10 -0800 (PST) Received: from localhost (broehrig@localhost) by admin.aurora.edu (8.8.8/8.8.8) with SMTP id KAA07638; Sat, 6 Mar 1999 10:50:18 -0600 Date: Sat, 6 Mar 1999 10:50:18 -0600 (CST) From: Bob Roehrig To: Dick Blaney cc: glowbugs@piobaire.mines.uidaho.edu, Garey Barrell Subject: Re: GB> Re: GB- Model T Coil In-Reply-To: <004801be6786$68a6e800$c69ad4cd@wb8mhe> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Fri, 5 Mar 1999, Dick Blaney wrote: > Another Ford coil trick we did as kids, was to insert a spark plug through > the side of a tailpipe, stop at an intersection, rev the motor and push the > button to the coil, and there would be about a 6' blue & yellow flame shoot > out back. Talk about a "glowbug". (had to get that in to keep on subject). It worked much better if you turned off the car's ignition (while moving and still in gear) and pumped the gas so the exhuast system was full of good gasoline vapors, then hit the ford coil. "Nostalgia is a thing of the past" E-mail broehrig@admin.aurora.edu 73 de Bob, K9EUI CIS: Data / Telecom Aurora University, Aurora, IL 630-844-4898 Fax 630-844-5530 From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 13:08:37 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA18239 for ; Sat, 6 Mar 1999 13:08:37 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA18143 for ; Sat, 6 Mar 1999 12:13:23 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA11768 for glowbugs-outgoing; Sat, 6 Mar 1999 09:06:42 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sparticus.bright.net (sparticus.bright.net [205.212.123.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA11762 for ; Sat, 6 Mar 1999 09:06:38 -0800 (PST) Received: from wb8mhe (circ-ras3-2-cs-9.dial.bright.net [209.143.14.239]) by sparticus.bright.net (8.9.3/8.9.3 ComNet Build) with SMTP id MAA17258; Sat, 6 Mar 1999 12:06:05 -0500 (EST) Message-ID: <002501be67f3$953efe80$ef0e8fd1@wb8mhe> From: "Dick Blaney" To: "Bob Roehrig" Cc: , "Garey Barrell" Subject: Re: GB> Re: GB- Model T Coil Date: Sat, 6 Mar 1999 12:05:45 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Mine was a "4 holer" Model A. I just reached over to the right, (near the girl friend's knee), and opened the needle valve or pulled up on the choke to get the fuel rich enough for a real "glowbug". 73 de Dick, WB8MHE wb8mhe@bright.net -----Original Message----- From: Bob Roehrig To: Dick Blaney Cc: glowbugs@piobaire.mines.uidaho.edu ; Garey Barrell Date: Saturday, March 06, 1999 11:56 AM Subject: Re: GB> Re: GB- Model T Coil >On Fri, 5 Mar 1999, Dick Blaney wrote: > >> Another Ford coil trick we did as kids, was to insert a spark plug through >> the side of a tailpipe, stop at an intersection, rev the motor and push the >> button to the coil, and there would be about a 6' blue & yellow flame shoot >> out back. Talk about a "glowbug". (had to get that in to keep on subject). > >It worked much better if you turned off the car's ignition (while >moving and still in gear) and pumped the gas so the exhuast system was >full of good gasoline vapors, then hit the ford coil. > > "Nostalgia is a thing of the past" > E-mail broehrig@admin.aurora.edu 73 de Bob, K9EUI > CIS: Data / Telecom Aurora University, Aurora, IL > 630-844-4898 Fax 630-844-5530 > From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 19:54:23 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA18433 for ; Sat, 6 Mar 1999 19:54:23 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA10890 for ; Sat, 6 Mar 1999 18:59:14 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA15163 for glowbugs-outgoing; Sat, 6 Mar 1999 15:42:09 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom12.netcom.com (tomrice@netcom12.netcom.com [192.100.81.124]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA15158 for ; Sat, 6 Mar 1999 15:42:02 -0800 (PST) Received: (from tomrice@localhost) by netcom12.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id PAA07800 for glowbugs@piobaire.mines.uidaho.edu; Sat, 6 Mar 1999 15:41:31 -0800 (PST) From: "Tom R. Rice" Message-Id: <199903062341.PAA07800@netcom12.netcom.com> Subject: GB> Neon sign reminder..... To: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) Date: Sat, 6 Mar 1999 15:41:30 -0800 (PST) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO It may be redundant to say this, but be sure to keep your eyes peeled for old neon signs, often to be had for the asking at mom & pop stores and defunct bars. I have several of these sitting around. Not only are the xfmrs fun (a typical one gives 3000 volts at 18 ma; serious stuff!), but working tubes are very nice for spectrographic demos with prisms and gratings. (You _do_ try to hook kids on science stuff, don't you?) 73 de WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 6 23:10:57 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA18530 for ; Sat, 6 Mar 1999 23:10:56 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA17523 for ; Sat, 6 Mar 1999 22:15:49 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA17071 for glowbugs-outgoing; Sat, 6 Mar 1999 18:55:29 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA17066 for ; Sat, 6 Mar 1999 18:55:25 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D43WR5LB; Sat, 06 Mar 1999 21:54:14 EST To: glowbugs@piobaire.mines.uidaho.edu Date: Sat, 6 Mar 1999 20:51:22 -0600 Subject: GB> FMLA: Ducking it Message-ID: <19990306.205137.-3185501.3.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO "Mr. Hitler man," Grace said, "Can you help me with this big package?" The young man would have bristled at that had he not shaved his head. I call him the WARmon and some days before, recalling a joke about an African who tried to convince a racist bartender he was Hispanic, the jackbooted bodyguard addressed our letter carrier as "Carnala." The response was a string of Spanish most missed but my daughter's friend, Isabella, turned away and covered her face. Later she told us the letter carrier characterized the WARmon's ancestry as a product of the meeting of a canine and a goat. But today the WARmon's officer, a thin woman named Christie, nodded, and he helped Grace move a large package to the porch. Christie stayed in their Toyota Land Cruiser with Charlie the ferret who glared at the interrupting humans with her demonic red eyes before regressing into a contorted nap on Christie's lap. Charlie is all white, which is just what the two bodyguards prefer, but they dutifully stay in my inner city neighborhood to protect my pal Frank, who does communications for their organization. I learned of this exchange from my 9-year-old daughter who sought me out saying "Daddy, Daddy, Frank ordered something for Mr. Duckie." I doubted that, but who can rule out any activity from a man who plans to take back 56-60 mc with a Five Meter Liberation Army? Mr. Duckie is a waterfowl with a parentage more mixed than Grace's. He wandered up one day and my wife took him in. We learned he would not go near water, so I suggested we name him for some of my wife's too-Irish relatives, but the name "Mr. Duckie" stuck. It seemed unlikely Frank would get the beast a present but, that said, W5FRS's XYL Sandy sends gifts for it. You never know. My daughter led me down the stairs to the basement workshop and before I talked to Frank I cleared up the mystery. On a table was the large package, addressed to Frank who the sender characterized as "Master," and bearing the return address of the William Duck company of Toledo. I was fascinated by an empty wooden box in the mass of packaging. It looked as if it once held some sort of chemical beaker and another, unopened, container of inlaid corner hardwood was still in the box. "Just more radio stuff," my daughter pronounced. She bounced up the stairs. In the next room I found Frank, but I thought of Science Fiction Theater, a 1950s TV show. In the beginning credits they panned through a fanciful laboratory and the Cunningham 304 tube Frank held would have fit right in with the pie pan/ice pick combo they presented as an antenna. The large glass envelope bulged at the center and it had a big plate cap. Frank was putting it into the cabinet of a Collins transmitter he gutted for the project. He even removed the Collins emblem, this one a meatball, and tossed it into an old Collins PTO can he keeps for such trinkets. He has three full ones already against the annual Dia De Los Muertos celebration at a nearby church. Frank goes all out for that event every year, including giving the logos to children in a "go fish" booth at the fair that accompanies the so-called "Mexican Halloween." I commented on the tube's appearance, and Frank looked at it for a moment, then at me questioningly. It seemed perfectly normal to him, as I guess it might to a guy who runs a pair of 100THs at home. He was tired of my QRP stuff and wanted to build a QRO final in our shared shop. "A Cunningham 304 is a good choice here," he said, as we had plenty of 12 volt. Each tube takes 15 amps. He called the 2KV plate equipment "modest" and already had a bank of caps worked up to get the B+ from the line. Frank does not like to use a transformer when "the power company keeps a nice one right outside on a pole." Sockets are never a problem for Frank. He drills a hole in a wood panel for the base and solders or clips the elements to minimize stray inductance. The bays for the Cunninghams were already cut and he had a set of 5 or 6 inch coils made up to hit 40M. Frank uses only open line and the push-push (or push-pull if he changes the alligators) PA would feed my 30M dipole against ground. Frank always uses a separate receive antenna. At my question, he said the tubes cost $110 each, which I thought not too bad for 250mA tubes, especially for a man who always has over $2K in his pocket. Big triodes need a lot of drive, so Frank had built up a one tube crystal cracker using an 813 fed from the same B+ thru a shoebox-sized choke marked only "USN." He checked the lashup by drawing an arc with an Eagle Mirado and got down to business using a saw blade sideswiper that threw little sparks on break after a long dash. Tuning his Supergainer with his left hand, and wearing his Brandes 'phones, he looked like some woodcut from Shortwave Craft in the light of the C 304's heaters. Satisfied with CW, the changed the bias and modulated the 813's screen for a long QSO with some OT in Colorado who was running a QRP AM rig with Class B push-pull, or what Frank usually calls "inefficiency modulation." He did not pick a fight with the 80-some-year-old guy, though. He just chit chatted for an hour about broadcasting in the late '20s. When he signed and cut the carrier he said I could have the wooden boxes to make hope chests for my kid's Barbies. Gathering the crates, I looked again at the label. I was a stamp collector as a kid and the ornate reproductions, I thought they were reproductions, caught my eye. But the package traveled for 48 cents so I looked closer and found a postmark of 20 April, 1921. I meant to ask Grace about that, but decided she might take it personally. de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com FMLA XXVI Student of Tecraft, ICM, and Six Meters' golden age, 1956-58. From glowbugs-owner@piobaire.mines.uidaho.edu Sun Mar 7 00:30:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA18571 for ; Sun, 7 Mar 1999 00:30:44 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA21056 for ; Sat, 6 Mar 1999 23:35:39 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA17841 for glowbugs-outgoing; Sat, 6 Mar 1999 20:27:18 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from quartz.nbnet.nb.ca (mailserv.nbnet.nb.ca [198.164.200.18]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA17836 for ; Sat, 6 Mar 1999 20:27:14 -0800 (PST) Received: from ve1fc.nbnet.nb.ca ([198.164.230.150]) by quartz.nbnet.nb.ca (Post.Office MTA v3.1.2 release (PO203-101c) ID# 607-54382U75000L75000S0V35) with SMTP id AAA27493; Sun, 7 Mar 1999 00:26:34 -0400 Message-ID: <001301be6852$a21143c0$96e6a4c6@ve1fc.nbnet.nb.ca> From: "Graham VE1FC" To: , "Garey Barrell" Subject: Re: GB> Re: GB- Model T Coil Date: Sat, 6 Mar 1999 23:26:10 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Speaking of tricks.... our thing was to take the Tford coil , place it in a box with a few dry celld ( #6) or an old 6 volt cat battery , stick a screw driver in the ground for that purpose, then hook the hot lead to the frame of a near car , and wait.............................. There were many words said when someone went to grab the door of the car ....... I got nailed with the coil a few times also.... door knobs were the rage for a few of the guys in my circle , and any other thing they could get HOT to offer one a surprise.... RGDS Graham ve1fc@nbnet.nb.ca -73- > > >I guess it is a sign of our times, but a trick we used to pull with the >Model T coil was to pass a cigarette through the spark path. Punched >hundreds of tiny (invisible) holes in the paper and you could NOT smoke >that cigarette!! > >Garey - K4OAH > From glowbugs-owner@piobaire.mines.uidaho.edu Sun Mar 7 20:29:38 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA19215 for ; Sun, 7 Mar 1999 20:29:37 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA31204 for ; Sun, 7 Mar 1999 19:34:44 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA27333 for glowbugs-outgoing; Sun, 7 Mar 1999 16:10:29 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from www.durham.net (root@WWW.Durham.Net [198.73.212.119]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA27328 for ; Sun, 7 Mar 1999 16:10:16 -0800 (PST) Received: from Docusystems.durham.net (tserver1-5.durham.net [198.73.213.69]) by www.durham.net (8.8.8/8.8.7) with ESMTP id TAA15561; Sun, 7 Mar 1999 19:07:26 -0500 (EST) Message-Id: <199903080007.TAA15561@www.durham.net> From: "Edward Swynar VE3 CUI" To: , , , , Subject: GB> NATIONAL RADIO INSTITUTE... Date: Sun, 7 Mar 1999 19:05:59 -0500 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO If anyone is interested in acquiring this, I am open to offers... I recently came upon a 1931 "National Radio Institute" (Washington, D.C.) "...Complete Course in Practical Radio". It comes with a hard-bound "Radio-Trician Binder" (about 180 pages), together with 23 individual softcover detailed lesson booklets, each about 30-pages long (examples of titles: "Principles of Radio Communications", "The Radio Frequency Amplifier and How It Works", "Tetrode, Pentode, and Variable Mu Tubes", "A-B-C Supplies", "Radio Coils-Why and How They Work", "Practical RF Circuits and Methods of Controlling Volume", "The Modern Superheterodyne Receiver", etc. etc.). The collection includes two similarly-sized softcover "Reference Books", i.e. "Radio Inventions", and "Commercial Radio Condensors". There is, as well, a copy of the magazine "National Radio News" (Volume 5 - No. 2...September 1932), together with a collection of the original exams-by-mail sheets, AND the student's answer sheets and work booklet... The lesson booklets are particularly informative, and would make excellent reference documents for anyone with a historic interest in the radio are as it was in the late 1920's / early 1930's. For additional details, please contact me at <> Tnx & ~73~ Eddy VE3CUI - VE3XZ From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 12:41:17 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA19746 for ; Mon, 8 Mar 1999 12:41:15 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA12810 for ; Mon, 8 Mar 1999 11:46:35 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA05422 for glowbugs-outgoing; Mon, 8 Mar 1999 08:25:04 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from peach.iaxs.net (root@peach.iaxs.net [209.134.128.1]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA05414 for ; Mon, 8 Mar 1999 08:24:59 -0800 (PST) Received: from citrus.iaxs.net (bill@citrus.iaxs.net [209.134.136.217]) by peach.iaxs.net (8.9.1/8.9.1) with ESMTP id KAA19792 for ; Mon, 8 Mar 1999 10:24:38 -0600 (CST) Received: (from bill@localhost) by citrus.iaxs.net (8.9.1/8.9.1) id KAA10230 for glowbugs@piobaire.mines.uidaho.edu; Mon, 8 Mar 1999 10:24:35 -0600 (CST) Date: Mon, 8 Mar 1999 10:24:35 -0600 (CST) From: Bill Hawkins Message-Id: <199903081624.KAA10230@citrus.iaxs.net> To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Typewriter font request Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I'm restoring some BA documents by OCR and repair. This gives readable text but it doesn't look like the original with Courier font. Can anybody point me to a font that looks like a 1940-50 typewriter. I don't even have a name for it. Thanks, Bill Hawkins bill@iaxs.net From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 12:58:12 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA19757 for ; Mon, 8 Mar 1999 12:58:12 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA10848 for ; Mon, 8 Mar 1999 12:03:31 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA05697 for glowbugs-outgoing; Mon, 8 Mar 1999 08:42:37 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd103.hotmail.com [207.82.252.167]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA05692 for ; Mon, 8 Mar 1999 08:42:33 -0800 (PST) Received: (qmail 27079 invoked by uid 0); 8 Mar 1999 16:41:47 -0000 Message-ID: <19990308164147.27078.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Mon, 08 Mar 1999 08:41:47 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: tomrice@netcom.com Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: GB- Neon sign reminder..... Date: Mon, 08 Mar 1999 08:41:47 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO My high school chemistry teacher almost killed himself with one of these things. It was used to demonstrate the spectral emissions of different gases. Anyway, one day he was installing a lamp and did not verify that the supply was powered down. He touched both terminals and proceeded to knock himself unconscious. He reported that the last thing he observed was a loud sound like a plane crashing through the roof. Fortunately, he recovered with no lasting effects. Serious stuff, indeed. Brad > It may be redundant to say this, but be sure > to keep your eyes peeled for old neon signs, > often to be had for the asking at mom & pop > stores and defunct bars. I have several of > these sitting around. Not only are the xfmrs > fun (a typical one gives 3000 volts at 18 ma; > serious stuff!), but working tubes are very nice > for spectrographic demos with prisms and gratings. > > (You _do_ try to hook kids on science stuff, don't you?) > > 73 de WB6BYH >-- >"Start off every day with a smile and get it over with." --W.C.Fields >Tom R. Rice >tomrice@netcom.com > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 12:59:37 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA19761 for ; Mon, 8 Mar 1999 12:59:36 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA15498 for ; Mon, 8 Mar 1999 12:04:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA05770 for glowbugs-outgoing; Mon, 8 Mar 1999 08:46:59 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp02.primenet.com (daemon@smtp02.primenet.com [206.165.6.132]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA05765 for ; Mon, 8 Mar 1999 08:46:56 -0800 (PST) Received: (from daemon@localhost) by smtp02.primenet.com (8.8.8/8.8.8) id JAA02332; Mon, 8 Mar 1999 09:45:05 -0700 (MST) Received: from usr06.primenet.com(206.165.6.206) via SMTP by smtp02.primenet.com, id smtpd002256; Mon Mar 8 09:44:59 1999 Date: Mon, 8 Mar 1999 09:44:58 -0700 (MST) From: Chris Trask To: Bill Hawkins cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Typewriter font request In-Reply-To: <199903081624.KAA10230@citrus.iaxs.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Mon, 8 Mar 1999, Bill Hawkins wrote: > I'm restoring some BA documents by OCR and repair. This gives readable text > but it doesn't look like the original with Courier font. Can anybody point > me to a font that looks like a 1940-50 typewriter. I don't even have a > name for it. > > Thanks, > Bill Hawkins bill@iaxs.net > And if anybody should find one would they please post it to the list? I'd like to use it as well. ,----------------------. Circuit Design for the / What's all this \ RF Impaired / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _ |/ Principal Engineer oo\ ATG Design Services (__)\ _ P.O. Box 25240 \ \ .' `. Tempe, Arizona 85285-5240 \ \ / \ \ '" \ Technical Editor, . ( ) \ QRP Quarterly '-| )__| :. \ QRP ARCI 9464 | | | | \ '. c__; c__; '-..'>.__ Email: ctrask@primenet.com http://www.primenet.com/~ctrask Graphics by Loek Frederiks From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 15:43:52 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA20096 for ; Mon, 8 Mar 1999 15:43:49 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA12510 for ; Mon, 8 Mar 1999 14:49:11 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA07828 for glowbugs-outgoing; Mon, 8 Mar 1999 11:11:12 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd120.hotmail.com [207.82.252.184]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA07823 for ; Mon, 8 Mar 1999 11:11:05 -0800 (PST) Received: (qmail 26192 invoked by uid 0); 8 Mar 1999 19:10:09 -0000 Message-ID: <19990308191009.26187.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Mon, 08 Mar 1999 11:10:08 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Unknown "transformer" Date: Mon, 08 Mar 1999 11:10:08 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Was out to the swap meet yesterday and scrounged a few transformers. A couple of them have three fork terminals in the base. They are completely sealed and about 1.75"x1.75"x2" in dimension. Terminals 1 to 3 have a DC resistance of about 8 ohms and appear to have only a couple hundred ohms impedance at 1 KHz, tops. Terminals 1 to 2 seem to be connected by a roughly 0.5 uF cap. With a signal across terminals 1 and 3, the signal at 2 is about 1/2. Manufacturer is Chicago Transformer. Any ideas what this is? Thanks. Brad ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 16:05:55 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA20123 for ; Mon, 8 Mar 1999 16:05:54 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA16998 for ; Mon, 8 Mar 1999 15:11:13 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA08130 for glowbugs-outgoing; Mon, 8 Mar 1999 11:42:42 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA08124 for ; Mon, 8 Mar 1999 11:42:38 -0800 (PST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id OAA08804; Mon, 8 Mar 1999 14:34:35 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903081934.OAA08804@weedcon1.cropsci.ncsu.edu> Subject: Re: GB> Typewriter font request In-Reply-To: from Chris Trask at "Mar 8, 99 09:44:58 am" To: ctrask@primenet.com (Chris Trask) Date: Mon, 8 Mar 1999 14:34:35 -0500 (EST) Cc: bill@iaxs.net, glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > On Mon, 8 Mar 1999, Bill Hawkins wrote: > > > I'm restoring some BA documents by OCR and repair. This gives readable text > > but it doesn't look like the original with Courier font. Can anybody point > > me to a font that looks like a 1940-50 typewriter. I don't even have a > > name for it. Guten gelucken..... I have always had to hand rekey mine for best results. OCR is .... almost there. > > > > Thanks, > > Bill Hawkins bill@iaxs.net > > > And if anybody should find one would they please post it to > the list? I'd like to use it as well. The only thing I have found that really looks reasonable and works reasonable is the TeX suite with its Computer Modern fonts (that really looks like 1920's style print). That is what I use. The downside is that you have to become a TeX freak. The times-roman in troff is fair, but that also looks a little too new. Some examples of the stuff I use is/was in the GB and the BA archives. Good Luck BA Bob From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 17:31:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA20231 for ; Mon, 8 Mar 1999 17:31:21 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA30509 for ; Mon, 8 Mar 1999 16:36:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA09309 for glowbugs-outgoing; Mon, 8 Mar 1999 12:59:54 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp13.bellglobal.com (smtp13.bellglobal.com [204.101.251.52]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA09304 for ; Mon, 8 Mar 1999 12:59:43 -0800 (PST) Received: from mrelay ([192.168.1.119]) by smtp13.bellglobal.com (8.8.5/8.8.5) with ESMTP id PAA02391 for ; Mon, 8 Mar 1999 15:59:48 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F8A00944NM8ZY@mrelay.bellglobal.com> for glowbugs@piobaire.mines.uidaho.edu; Mon, 8 Mar 1999 15:58:56 -0500 (EST) Date: Mon, 08 Mar 1999 20:56:53 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: Re: GB> Typewriter font request To: bill@iaxs.net Cc: glowbugs@piobaire.mines.uidaho.edu Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) References: <199903081624.KAA10230@citrus.iaxs.net> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO bill@iaxs.net,Internet writes: >I'm restoring some BA documents by OCR and repair. This gives readable >text >but it doesn't look like the original with Courier font. Can anybody >point >me to a font that looks like a 1940-50 typewriter. I don't even have a >name for it. >Thanks, >Bill Hawkins bill@iaxs.net Have you tried doing a search at download.com or TUCOWS? search FONTS... lots of shareware listings... - Bill H. From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 19:24:15 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA20408 for ; Mon, 8 Mar 1999 19:24:14 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA14436 for ; Mon, 8 Mar 1999 18:29:39 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA10627 for glowbugs-outgoing; Mon, 8 Mar 1999 14:50:17 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA10614; Mon, 8 Mar 1999 14:49:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 8 Mar 1999 14:49:58 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: User Na4g Boatanchor Bob cc: Chris Trask , bill@iaxs.net, glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Typewriter font request In-Reply-To: <199903081934.OAA08804@weedcon1.cropsci.ncsu.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > > > I'm restoring some BA documents by OCR and repair. This gives readable text > > > but it doesn't look like the original with Courier font. Can anybody point > > > me to a font that looks like a 1940-50 typewriter. I don't even have a > > > name for it. > > Guten gelucken..... I have always had to hand rekey mine for best results. > OCR is .... almost there. Actually, Century Schoolbook from MS's (shudder) OfficePro 97 looks nearly exact to me. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 8 20:17:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA20455 for ; Mon, 8 Mar 1999 20:17:45 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA13267 for ; Mon, 8 Mar 1999 19:23:08 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA11632 for glowbugs-outgoing; Mon, 8 Mar 1999 15:37:59 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp13.bellglobal.com (smtp13.bellglobal.com [204.101.251.52]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA11627 for ; Mon, 8 Mar 1999 15:37:54 -0800 (PST) Received: from mrelay ([192.168.1.119]) by smtp13.bellglobal.com (8.8.5/8.8.5) with ESMTP id SAA28391 for ; Mon, 8 Mar 1999 18:37:13 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F8A00922UWMZY@mrelay.bellglobal.com> for glowbugs@piobaire.mines.uidaho.edu; Mon, 8 Mar 1999 18:36:23 -0500 (EST) Date: Mon, 08 Mar 1999 23:34:11 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: Re: GB> Typewriter font request To: bill@iaxs.net Cc: glowbugs@piobaire.mines.uidaho.edu Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) References: <199903081624.KAA10230@citrus.iaxs.net> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO http://www.download.com/pc/software/0,332,0-42301-s,1000.html?st.dl.sear ch.results.tdtl http://www.download.com/pc/software/0,332,0-61275-s,1000.html?st.dl.sear ch.results.tdtl others abound From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 9 07:50:02 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id HAA20901 for ; Tue, 9 Mar 1999 07:50:02 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id GAA01538 for ; Tue, 9 Mar 1999 06:55:36 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id DAA18903 for glowbugs-outgoing; Tue, 9 Mar 1999 03:42:35 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id DAA18898 for ; Tue, 9 Mar 1999 03:42:30 -0800 (PST) Received: from indy3.indy.net (root@indy3.indy.net [199.3.65.14]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id GAA26540; Tue, 9 Mar 1999 06:43:22 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy3.indy.net (8.8.7/8.8.7) with SMTP id GAA09749; Tue, 9 Mar 1999 06:43:20 -0500 (EST) Date: Tue, 9 Mar 1999 06:43:19 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy3 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> Engineering In History Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hallo! ...One of the kinds of books that always gets my attention are the various and sundry historical overviews of science and technology. (Maybe I *am* as dull a gal as folks say?) Happened upon a familiar word in one the other day. Many of us, myself included, misapply it in referring to the reduction drives used for tuning and other fine adjustment, but those who own a National type N dial/drive have an example of the genuine article: the vernier. It's actually the little interpolating scale that allows you to read the dial accurately to one more digit than would otherwise be the case, ten divisions in the space of nine on the main dial, a marvelously clever notion. (National N dials are the best-known example, though Crowe/Gordon Specialities, General Radio and many others used the same principle on their high-accuracy dials). ...The device was invented by a French engineer (note to prospective inventors: move to France, they're more likely than any other nation on Earth to name your gadget after you). No surprise, from the nation that gave us fellows like Descartes.... But here's the shocker: remember our discussions, some while back, of the oldest kinds of parts to survive in radio use to this day? M. Vernier wins, hands-down. You see, he was after improving the accuracy of surveying instruments when he dreamed up the idea, along about *1630.* That's no typo--'twas A. D. one thousand, six hundred and thirty! What was it Newton said about "standing on the shoulders of giants?" It was a longer climb than we usually think! 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 9 10:12:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA20971 for ; Tue, 9 Mar 1999 10:12:12 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA17260 for ; Tue, 9 Mar 1999 09:17:43 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA19902 for glowbugs-outgoing; Tue, 9 Mar 1999 06:09:34 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from weedcon1.cropsci.ncsu.edu (weedcon1.cropsci.ncsu.edu [152.1.207.51]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA19897 for ; Tue, 9 Mar 1999 06:09:30 -0800 (PST) Received: (from na4g@localhost) by weedcon1.cropsci.ncsu.edu (8.8.8/8.8.8) id JAA10095; Tue, 9 Mar 1999 09:01:34 -0500 (EST) (envelope-from na4g) From: User Na4g Boatanchor Bob Message-Id: <199903091401.JAA10095@weedcon1.cropsci.ncsu.edu> Subject: Re: GB> Typewriter font request In-Reply-To: from Ken Gordon at "Mar 8, 99 02:49:58 pm" To: keng@uidaho.edu (Ken Gordon) Date: Tue, 9 Mar 1999 09:01:33 -0500 (EST) Cc: ctrask@primenet.com, bill@iaxs.net, glowbugs@piobaire.mines.uidaho.edu X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > > > > I'm restoring some BA documents by OCR and repair. This gives readable text > > > > but it doesn't look like the original with Courier font. Can anybody point > > > > me to a font that looks like a 1940-50 typewriter. I don't even have a > > > > name for it. > > > > Guten gelucken..... I have always had to hand rekey mine for best results. > > OCR is .... almost there. > > Actually, Century Schoolbook from MS's (shudder) OfficePro 97 looks nearly > exact to me. Schoolbook style fonts would be good, and are in most postscript font sets. The proportioning of charcter spacing sometimes leaves a little to be desired, but it is a good font for our work. Bob From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 9 12:26:50 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA21038 for ; Tue, 9 Mar 1999 12:26:49 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA32044 for ; Tue, 9 Mar 1999 11:32:23 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA21106 for glowbugs-outgoing; Tue, 9 Mar 1999 08:16:51 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp01.primenet.com (daemon@smtp01.primenet.com [206.165.6.131]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA21101 for ; Tue, 9 Mar 1999 08:16:47 -0800 (PST) Received: (from daemon@localhost) by smtp01.primenet.com (8.8.8/8.8.8) id JAA19461; Tue, 9 Mar 1999 09:16:16 -0700 (MST) Received: from usr05.primenet.com(206.165.6.205) via SMTP by smtp01.primenet.com, id smtpd019433; Tue Mar 9 09:16:13 1999 Date: Tue, 9 Mar 1999 09:16:12 -0700 (MST) From: Chris Trask To: Ken Gordon cc: User Na4g Boatanchor Bob , bill@iaxs.net, glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Typewriter font request In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Mon, 8 Mar 1999, Ken Gordon wrote: > > > > I'm restoring some BA documents by OCR and repair. This gives > > > > readable text but it doesn't look like the original with Courier > > > > font. Can anybody point me to a font that looks like a 1940-50 > > > > typewriter. I don't even have a name for it. > > > > Actually, Century Schoolbook from MS's (shudder) OfficePro 97 looks nearly > exact to me. > I just looked at four different typewriter fonts at download.com, and the best of the four (Love Letters) seems to be: http://www.download.com/pc/software/0,332,0-58113-s,1000.html?st.dl. search.results.tdt1 I might use this on a regular basis. I still have my old portable typewriter, although I haven't used it in over 10 years, and I like reading this style of font. I might even leave the right margins unjustified just for the hell of it (excuse my French). ,----------------------. Circuit Design for the / What's all this \ RF Impaired / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _ |/ Principal Engineer oo\ ATG Design Services (__)\ _ P.O. Box 25240 \ \ .' `. Tempe, Arizona 85285-5240 \ \ / \ \ '" \ Technical Editor, . ( ) \ QRP Quarterly '-| )__| :. \ QRP ARCI 9464 | | | | \ '. c__; c__; '-..'>.__ Email: ctrask@primenet.com http://www.primenet.com/~ctrask Graphics by Loek Frederiks From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 9 16:29:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA21200 for ; Tue, 9 Mar 1999 16:29:42 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA10295 for ; Tue, 9 Mar 1999 15:35:22 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA23722 for glowbugs-outgoing; Tue, 9 Mar 1999 12:01:39 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom15.netcom.com (tomrice@netcom15.netcom.com [192.100.81.128]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA23717 for ; Tue, 9 Mar 1999 12:01:34 -0800 (PST) Received: (from tomrice@localhost) by netcom15.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id MAA12111; Tue, 9 Mar 1999 12:00:44 -0800 (PST) From: "Tom R. Rice" Message-Id: <199903092000.MAA12111@netcom15.netcom.com> Subject: GB> Engineering In History...... To: boatanchors@sco.theporch.com (boatanchors list) Date: Tue, 9 Mar 1999 12:00:43 -0800 (PST) Cc: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > ...One of the kinds of books that always gets my attention are the > various and sundry historical overviews of science and technology. (Maybe > I *am* as dull a gal as folks say?) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Surely you jest! I'll bet you've read every one of Henry Petroski's books. (H. P. is the guy who wrote 400+ pages on "The Pencil", a book, once started, which the reader can't lay down until the end.) Keep it up! 73, trr -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 10 17:43:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA22072 for ; Wed, 10 Mar 1999 17:43:10 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA13385 for ; Wed, 10 Mar 1999 16:49:05 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA09547 for glowbugs-outgoing; Wed, 10 Mar 1999 13:09:03 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from nyct.net (bsd4.nyct.net [204.141.86.6]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA09542 for ; Wed, 10 Mar 1999 13:08:59 -0800 (PST) Received: from ppp88.nyct.net (ppp88.nyct.net [207.198.184.88]) by nyct.net (8.8.8/8.8.7) with SMTP id QAA11884; Wed, 10 Mar 1999 16:08:25 -0500 (EST) (envelope-from artdeco@nyct.net) Message-Id: <3.0.5.16.19990310160845.318739b8@mail.nyct.net> X-Sender: artdeco@mail.nyct.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (16) Date: Wed, 10 Mar 1999 16:08:45 To: alihernlem@hotmail.com, glowbugs@piobaire.mines.uidaho.edu From: Carl Ratner Subject: Re: GB> Meisnner IF Transformers In-Reply-To: <19990310164908.14421.qmail@hotmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 08:49 AM 3/10/99 PST, Brad Hernlem wrote: >As part of my swap meet haul, there were included a few Meisnner IF >transformers. Does anyone happen to have a catalog to trace down the >specs on these? I would appreciate your help. > >The first can is clearly marked with the number 16-6651 and has a DC >resistance of 86 ohms in both coils. The Allied Radio catalog for 1958 has some information on the Meissner 16-6651: Type: Low-cost IF, air core, double-tuned trimmers Use: Output Frequency Range, kc: 140 - 200 Selectivity (Bandwidth in kc) 2X: 11.5 Selectivity 10X: 29.5 Price: $1.56 !!! >The second and third cans have DC resistances of 23.5 ohms in both coils >but the numbers are difficult to read. They look like they might be >16-6660 and 56-6658. Allied does list a 16-6660: Type: Low-cost IF, air core, double-tuned trimmers Use: Output Frequency Range, kc: 400 - 550 Selectivity 2X: 17.5 Selectivity 10X: 50.5 Price: $1.41 No reference to 56-6658, but there is a listing for 16-6658, which is consistent with the numbering on your other transformers: Type: Low-cost IF, air core, double-tuned trimmers Use: Input Frequency Range, kc: 400 -550 Selectivity 2X: 18.8 Selectivity 10X: 46.6 Price: $1.41 -- Carl Ratner restorer of vintage radios and aspiring glowbugger From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 10 13:00:23 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA21936 for ; Wed, 10 Mar 1999 13:00:22 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA02264 for ; Wed, 10 Mar 1999 12:06:18 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA05775 for glowbugs-outgoing; Wed, 10 Mar 1999 08:43:35 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f279.hotmail.com [207.82.251.170]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA05770 for ; Wed, 10 Mar 1999 08:43:31 -0800 (PST) Received: (qmail 161 invoked by uid 65534); 10 Mar 1999 16:42:46 -0000 Message-ID: <19990310164246.160.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Wed, 10 Mar 1999 08:42:46 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Power/Decibels/Headsets Date: Wed, 10 Mar 1999 08:42:46 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I have been experimenting with a 3A4 tube and different configurations for an audio amplifier driving my HS-33 (600 ohm) headset. I am wondering whether anyone in the group has some good numbers for the amount of power required to produce reasonable levels of sound in headsets. You will have to excuse my compulsive desire to quantify everything; I am an engineer. :-) With one typical arrangement, employing a 41:1 ratio transformer, I am getting about 5000X power gain (37 dB). My calculations with 0.3 V P-P at the input (1M impedance) indicate 11 nW input to 55 uW (that's microwatts) output. Fifty five microwatts seems like pretty low power to me but the sound level delivered seems almost excessive. This is with a 990 Hz signal, BTW. Anyone have any ballpark numbers for headset power versus degrees of sound delivered (like "barely audible", "comfortable", and "excessively loud", etc.)? I am coming to the conclusion that with high impedance headphones, or lower impedance phones driven through a transformer, there is no need for "power" pentodes in the final stages of a radio (and the associated extra filament energy requirement). This is probably one of those stupid questions that is immediately obvious to most of you but I am still learning. Regards, Brad Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 10 12:59:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA21930 for ; Wed, 10 Mar 1999 12:59:41 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA29804 for ; Wed, 10 Mar 1999 12:05:37 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA05869 for glowbugs-outgoing; Wed, 10 Mar 1999 08:49:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f137.hotmail.com [207.82.251.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id IAA05864 for ; Wed, 10 Mar 1999 08:49:55 -0800 (PST) Received: (qmail 14422 invoked by uid 65534); 10 Mar 1999 16:49:08 -0000 Message-ID: <19990310164908.14421.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Wed, 10 Mar 1999 08:49:08 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Meisnner IF Transformers Date: Wed, 10 Mar 1999 08:49:08 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO As part of my swap meet haul, there were included a few Meisnner IF transformers. Does anyone happen to have a catalog to trace down the specs on these? I would appreciate your help. The first can is clearly marked with the number 16-6651 and has a DC resistance of 86 ohms in both coils. The second and third cans have DC resistances of 23.5 ohms in both coils but the numbers are difficult to read. They look like they might be 16-6660 and 56-6658. These are the types that are roughly 1"x1"x2" and have two holes in the top to access trimmer adjustment screws. Thanks. Brad Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 10 18:48:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA22106 for ; Wed, 10 Mar 1999 18:48:11 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA23870 for ; Wed, 10 Mar 1999 17:54:06 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA10296 for glowbugs-outgoing; Wed, 10 Mar 1999 14:07:41 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA10289 for ; Wed, 10 Mar 1999 14:07:31 -0800 (PST) Received: from indy1.indy.net (root@indy1.indy.net [199.3.65.5]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id QAA01992; Wed, 10 Mar 1999 16:31:14 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy1.indy.net (8.8.7/8.8.7) with SMTP id QAA14741; Wed, 10 Mar 1999 16:31:12 -0500 (EST) Date: Wed, 10 Mar 1999 16:31:10 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy1 To: Brad Hernlem cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Power/Decibels/Headsets In-Reply-To: <19990310164246.160.qmail@hotmail.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Brad! The efficiency of transducers (actual volume vs. driving power required to produce it) varies *widely.* "Typical" 2K headphones bridged across a 600R line with +8 dBm sigs are plenty loud, and that's about 15% of a few milliWatts driving them. (I could go do the math if you have to see it; voltage swing across the cans is somewhere between a volt and a half and two volts if we take 0 dBm/600R as about 0.7V). Generally, you don't need much to drive a pair of cans--a one-tube regen set will run decent headphones very well on the BC bands and adequately for casual SWLing; most '30s ham regen outfits added one whole entire low-gain triode in an AF amp to better dig the weak ones out of the noise. The 2A5 or '42 or 6F6/6V6/6L6 (get to know yer neighbors better with a 6L6 and a good speaker!) stage is really only needed if you want to run a speaker, especially a modern, wide-bandwidth/low efficiency (and there's the trade-off: you pay for DC-to-daylight response with lower efficiency) type. Good hi-Z cans, well, Ross Hull had to bias the grid up and crank back on the plate voltage to get the volume *down* far enough for comfort when messing around with an early and fairly marginal pentode as the sole AF gain stage in a regen receiver! 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 11 14:01:12 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA22816 for ; Thu, 11 Mar 1999 14:01:11 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA17179 for ; Thu, 11 Mar 1999 13:07:19 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA24688 for glowbugs-outgoing; Thu, 11 Mar 1999 09:26:09 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f178.hotmail.com [207.82.251.64]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA24683 for ; Thu, 11 Mar 1999 09:26:04 -0800 (PST) Received: (qmail 5428 invoked by uid 65534); 11 Mar 1999 17:25:17 -0000 Message-ID: <19990311172517.5426.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Thu, 11 Mar 1999 09:25:17 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Homebrewing Headbands? Date: Thu, 11 Mar 1999 09:25:17 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Anyone have any suggestions for homebrewing a headband for some cans that I have (or anyone have a source?)? I used to have the original, which was in very bad condition, that I unfortunately threw away in one of my "throw things away" moods (those don't come very often, which is a good thing I guess, unless you are my wife). Brad Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 11 18:41:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA23065 for ; Thu, 11 Mar 1999 18:41:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA00142 for ; Thu, 11 Mar 1999 17:47:40 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA28269 for glowbugs-outgoing; Thu, 11 Mar 1999 13:59:33 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA28264 for ; Thu, 11 Mar 1999 13:59:26 -0800 (PST) Received: from default (seaotter15.pcola.gulf.net [205.160.71.126]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id PAA28491 for ; Thu, 11 Mar 1999 15:58:51 -0600 (CST) Message-ID: <039c01be6c0a$aaad27e0$18c616d0@default> Reply-To: "rbigg" From: "rbigg" To: Subject: Fw: GB> Homebrewing Headbands? Date: Thu, 11 Mar 1999 16:00:59 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >Brad--take it to a shoe repair shop and see if they can put you one >together. > >-----Original Message----- >From: Brad Hernlem >To: glowbugs@piobaire.mines.uidaho.edu >Date: Thursday, March 11, 1999 12:17 PM >Subject: GB> Homebrewing Headbands? > > >>Anyone have any suggestions for homebrewing a headband for some cans >>that I have (or anyone have a source?)? I used to have the original, >>which was in very bad condition, that I unfortunately threw away in one >>of my "throw things away" moods (those don't come very often, which is a >>good thing I guess, unless you are my wife). >> >>Brad >>Get Your Private, Free Email at http://www.hotmail.com > From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 11 22:55:06 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA23192 for ; Thu, 11 Mar 1999 22:55:02 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA03221 for ; Thu, 11 Mar 1999 22:01:21 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA01745 for glowbugs-outgoing; Thu, 11 Mar 1999 18:34:58 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA01739 for ; Thu, 11 Mar 1999 18:34:50 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id VAA13687 for ; Thu, 11 Mar 1999 21:35:12 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id VAA05588 for ; Thu, 11 Mar 1999 21:35:09 -0500 (EST) Date: Thu, 11 Mar 1999 21:35:08 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Engineering In History (fwd) Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Gang! Peter Demmer sent this to me. Has anyone seen vernier dials like the ones he describes? They are exceptionally nice! But the maker's a mystery to me; the markings don't fit any of the usual suspects and the mechanism is unusual. ---------- Forwarded message ---------- Peter wrote; [Referring to the "Vernier" sidebar I posted] What a timely piece. Yesterday I completed restoring two vernier type 3.5" dials. These are post machined of a heavy, hot brass stamp forged construction. They were dirty, frozen and so corroded. Lots of TLC and cleaning has restored them to a brillance even I can't beleive. Interestingly enough Bobbie, most vernier dials are of the pinch planetary style drive design and construction. The ones I have are of a planetary, real, finely machined gearing system. I cleaned each piece and lubricated them with a white lithium grease. They have the 6:1 ratio and are so smooth to operate. I'm not sure of the manufacturer. The only identification is an engraved T with a diagonal line through it centered in a small circle. The circle is about 3/16" in diameter. On closer inspection, I find that this is not a true circle. It appears as an S with a straight diagonal line joining the upper and lower normal curves of the letter S. The heavy dial has 4 through mounting holes. Two are located at the top on either side of the engraved arrow pointer mark landing. the other two are located on both sides of the lower skirt flange circumference. Basically, these are a tri-point mounting with about a 120 degrees mounting seperation points. Located on the inside and to the left and right of these two lower holes are the upper case letters S and B respectively. The only part that is not heavy brass is the thick black, bakelite, brass bushed dial turning knob. The whole assembly is heavily chrome plated with deeply engraved black filled 0 to 100 numerials Wonderfully strange thing about the gearing is the way they were made. The tiny gears were machined seperatly as ring gears if you will. In like manner, the combination bearings and spindle shafts were also machined seperatly. Then the ring gears were attached to the spindle shafts with 3 drilled holes and machined pins set at 120 degrees on the tiny flat surface circumferences. One such spindle and gear combination has two such ring gear assemblies mounted on the front and back of the same spindle face. These are drilled and pinned at 60 degree on both sides of the flat circumference surface. There is less than 0.001 inch backlash. Talk about pair of classic pieces of radio history. Now to build something worthy of being graced by such heavy weights of radio art. As best as I can tell, they predate WWII. They could be of an early Japanese production. Maybe you or the GB gang can shed some light on the origin and date? Please post this to the rest of the gang. [...] Aloha, Peter KH6CTQ From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 12 00:09:15 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA23229 for ; Fri, 12 Mar 1999 00:09:15 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA11225 for ; Thu, 11 Mar 1999 23:15:35 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA02496 for glowbugs-outgoing; Thu, 11 Mar 1999 19:46:40 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from radiate.indy.net (radiate.indy.net [199.3.65.253]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA02488 for ; Thu, 11 Mar 1999 19:46:34 -0800 (PST) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by radiate.indy.net (8.8.7/8.8.7) with ESMTP id WAA16920; Thu, 11 Mar 1999 22:46:53 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id WAA09925; Thu, 11 Mar 1999 22:46:49 -0500 (EST) Date: Thu, 11 Mar 1999 22:46:48 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> Hamfest in Indianapolis! Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Gang! There's a hamfest coming up this weekend in my very own home town (Indianapolis, IN and who's that snickering in the back row? Oh, never mind, it's someone from Baltimore). Anyhow, the Indiana Hamfest is this Sunday, 14 March, at the State Fairgrounds; doors open at 8:00am and if we are very lucky, we won't have hip-deep snow by then. Is anyone else from the lists planning to attend? If so, look for me. There usually aren't more than two excessively tall women at these things and in any case, I'm the one with blue eyes and bangs (a five-year-old's hairstyle but it works for Xena the Warrior Princess!*). Be sure to say hey! 73, --Bobbi *If only I could manage the yell. Can't have everything! KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 12 19:12:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA24018 for ; Fri, 12 Mar 1999 19:12:42 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA29360 for ; Fri, 12 Mar 1999 18:19:15 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA12886 for glowbugs-outgoing; Fri, 12 Mar 1999 14:50:44 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.ils.net (server1.ils.net [209.135.103.11]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA12881 for ; Fri, 12 Mar 1999 14:50:38 -0800 (PST) Received: from modem115.ils.net (modem115.ils.net [209.135.103.115]) by mail.ils.net (8.8.8/8.8.8) with SMTP id RAA09126 for ; Fri, 12 Mar 1999 17:50:42 -0500 (EST) Date: Fri, 12 Mar 1999 17:50:42 -0500 (EST) Message-Id: <199903122250.RAA09126@mail.ils.net> X-Sender: toneri@mail.ils.net (Unverified) X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: glowbugs@piobaire.mines.uidaho.edu From: L & M Subject: GB> Many thanks for help wit NC2-40D Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I just wanted to say thanks to all who replied with help on re-capping the NC2-40D that I rescued from being stripped for parts. I have now re-capped the radio and all it need is to re-align the dial calibration on a couple of bands. This radio looks almost like new again and sounds just as good. Even the 14 - 30 mhz band is quite sensitive and I was able to compare signals on 10 meteres AM with my NC303 and FT767. It hears almost as well but the adio is so much better. I think I will hang on to this receiver for a while. Sorry guys, but now I know why everyone wants a NC2-40D. 73...Mike ********************************************************** Mike (VE3FGU) & Lynda Toneri E-mail: toneri@ils.net Keswick, Ontario 26' Nonsuch #196 "Maxicat" Webpages:http://www.geocities.com/heartland/meadows/8218 http://www.angelfire.com/on/ve3fgu *********************************************************** From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 00:49:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA24283 for ; Sat, 13 Mar 1999 00:49:42 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA16946 for ; Fri, 12 Mar 1999 23:56:19 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA15771 for glowbugs-outgoing; Fri, 12 Mar 1999 20:43:34 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.rdc1.az.home.com (imail@ha1.rdc1.az.home.com [24.1.240.66]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA15766 for ; Fri, 12 Mar 1999 20:43:31 -0800 (PST) Received: from CX281231-A ([24.1.231.97]) by mail.rdc1.az.home.com (InterMail v4.00.03 201-229-104) with SMTP id <19990313044249.GXXW21269.mail.rdc1.az.home.com@CX281231-A> for ; Fri, 12 Mar 1999 20:42:49 -0800 Message-Id: <3.0.5.32.19990312214203.00839700@mail> X-Sender: wturansky@mail X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.5 (32) Date: Fri, 12 Mar 1999 21:42:03 -0700 To: glowbugs@piobaire.mines.uidaho.edu From: Walt Turansky Subject: GB> Frank Jones P-P xmitter Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I finally got some time to play radio after moving to a new home and getting the XYL's honey do list reduced in size so I built the 1935 Frank Jones P-P xtal oscillator. I only had some 6N7's unpacked so I used one and I'm very impressed with the performance. It's running on 80 meters with the plates at 450V and 50 mA; so that's 22.5W input and I'm measuring 15W out, which sounds about right. The circuit is really simple and I'm surprized that P-P oscillators died a wrongfull death in the 30's. I also have the RAL-7 fired up and along side the Frank Jones oscillator so if the noise on 80 reduces, I hope I can make a QSO. The next project is the 813 xtal oscillator from the RCA Ham Tips. It'll be set up for 80 and 40. Thanks to Bobbi for the Radio Amateur Newcomer reprint and to Ken for the Ham Tips copy. I tried 3579 this evening about 0300Z and 0400Z and couldn't hear anything but noise. 73 de KW7WT, Walt From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 01:48:44 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA24315 for ; Sat, 13 Mar 1999 01:48:44 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA12861 for ; Sat, 13 Mar 1999 00:55:24 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA16278 for glowbugs-outgoing; Fri, 12 Mar 1999 21:36:21 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id VAA16273; Fri, 12 Mar 1999 21:36:17 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 12 Mar 1999 21:36:17 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Walt Turansky cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Frank Jones P-P xmitter In-Reply-To: <3.0.5.32.19990312214203.00839700@mail> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > 15W out, which sounds about right. The circuit is really simple and I'm > surprized that P-P oscillators died a wrongfull death in the 30's. My sentiments exactly! :-) > > I also have the RAL-7 fired up and along side the Frank Jones oscillator so > if the noise on 80 reduces, I hope I can make a QSO. You will. Say, do you need a copy of the Doug DeMaw "QRN Squasher" article? I can send it. > > The next project is the 813 xtal oscillator from the RCA Ham Tips. It'll > be set up for 80 and 40. It will be nice to hear another one on the air. I can hardly wait. > > Thanks to Bobbi for the Radio Amateur Newcomer reprint and to Ken for the > Ham Tips copy. You're welcome! > > I tried 3579 this evening about 0300Z and 0400Z and couldn't hear anything > but noise. I was on 3578.000 calling CQ BA about 0320 or so. Heard some weak stations in there. One-way skip about 20 minutes earlier. Lots of Midwest and Eastern stations heard. Where are you, Walt? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 09:02:48 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id JAA24535 for ; Sat, 13 Mar 1999 09:02:48 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id IAA30642 for ; Sat, 13 Mar 1999 08:09:30 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id EAA21430 for glowbugs-outgoing; Sat, 13 Mar 1999 04:57:13 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id EAA21425 for ; Sat, 13 Mar 1999 04:57:09 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D5LFLH8V; Sat, 13 Mar 1999 07:56:07 EST To: Boatanchors@theporch.com, Glowbugs@piobaire.mines.uidaho.edu Date: Sat, 13 Mar 1999 06:52:56 -0600 Subject: GB> FMLA: Dauntless Douglas Message-ID: <19990313.065300.-513695.0.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Line-Breaks: 0-73,75-76 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Frank has lots of schedules to keep, like a lot of hams, but he keeps them on 58 mc +/-. His plan to take back the old 56-60 mc band with a Five Meter Liberation Army is facilitated both by a cadre of home brew Zealots and, lately, a National Guard of folks who buy old 6M AM gear and convert it up. But some cannot even afford those hamfest junk box "make offers." Douglas is one of them. The kid is nine years old but, somehow, he came up with a digital voltmeter. He lives way up in Canada where bad actors are few and distances great, so he stays by himself for two hours every day after the bus brings him home from school. He does his homework on the roll and plays with radio at home. In his march to self enlightenment he fitted his old baby monitor transmitter, inductively, to his mom's clothes line array and Frank picked him up one day as he was saying "Hello" at around 49 mc. Frank got his post office box and sent him a 58 mc area crystal and a copy of Marcus and Levy's "Essentials of Radio." In a month or so they were coordinating calls against CHU and, maybe one of five or six times, they make it. Frank thinks AM is fine, and that FM is too, so his modulated oscillator pair of 450TLs from the July 1959 QST does both. He builds so many copper clad finals he has an open account at Crown Plumbing where they call him "Mr. Zoot Suit" for his double-breasted togs. The VHF big gun complement to his pair of C-304s on HF is easily copied by a "Sleepy Time Sentinel" super-regenerative RX here in the Barrio or even up in British Columbia if the E layer cooperates. One day Douglas was saying he had a breadboard amp in the works with a 6DQ6 PA. To get screen voltage he coiled up an old "curtain burner" filament dropping AC cord from his grandad's attic and added a few Christmas lights. High value components are hard to find, he said. About that time Frank lost him, but worried about the kid using the ancient cord for a screen resister so he made a call on 58 mc, explaining the situation to a guy with a Johnson Challenger on 58 mc in Melena, Kansas. The message might have hung there, but the op raised one of the Nation Of Islam nets out of Chicago. Frank alters CB radios for them and they were glad to relay into Canada where a pair of inched up Green Eye Gonsets reached a Mountie with a Morrow converter. The RCMP called on the kid and, in about two hours, Frank heard that the cord did indeed start a fire. But Douglas quickly fixed it with an extinguisher he mounted near his Big Bird Playschool Desk workbench that has an add on work surface and a big copper ground strap. The Mountie just left a CPR booklet as Douglas learned the old style from Marcus and Levy. But Frank was still worried so he sent the kid a Knight T-60, reasoning the double-in-the-final setup would keep the kid from having to neutralize it. He also sent the parts and article for the Kitchin super-regen RX from the November 1997 QST including one of the 10-turn 20K Ohm pots he got when he bought the railroad car of junk from Collins, Dallas. Most of that went into the WAR bunch's berm at their shooting range in East Texas, but he kept some of the stuff in my basement. Douglas got both of them on line and the link worked a lot better after that. But since the Kitchin will also operate as a straight regenerative, the kid could begin to listen to SSB down on 6M and he has started building up a TX. Frank says that is another example of the corrupting influence of the solid state. de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com FMLA XXVII Student of Tecraft, ICM, and Six Meters' golden age, 1956-58. From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 15:03:17 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA24755 for ; Sat, 13 Mar 1999 15:03:17 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA04058 for ; Sat, 13 Mar 1999 14:10:04 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA24002 for glowbugs-outgoing; Sat, 13 Mar 1999 10:56:13 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from netcom11.netcom.com (tomrice@netcom11.netcom.com [192.100.81.121]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA23996 for ; Sat, 13 Mar 1999 10:56:09 -0800 (PST) Received: (from tomrice@localhost) by netcom11.netcom.com (8.8.5-r-beta/8.8.5/(NETCOM v1.02)) id KAA06208 for glowbugs@piobaire.mines.uidaho.edu; Sat, 13 Mar 1999 10:55:49 -0800 (PST) From: "Tom R. Rice" Message-Id: <199903131855.KAA06208@netcom11.netcom.com> Subject: GB> Vernier mechanism mfr? To: glowbugs@piobaire.mines.uidaho.edu (free glowbugs) Date: Sat, 13 Mar 1999 10:55:49 -0800 (PST) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO If that logo really does reduce to an "S" and a "T", the name "Sarkes-Tarzian" comes to mind, a mere cobweb in the rafters of yesteryear's brain. Unfortunately, I can only offer the name of this early outfit; details have been dusted over. A point from where a search might begin........ 73 de WB6BYH -- "Start off every day with a smile and get it over with." --W.C.Fields Tom R. Rice tomrice@netcom.com From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 19:43:01 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA24895 for ; Sat, 13 Mar 1999 19:43:01 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA20465 for ; Sat, 13 Mar 1999 18:49:53 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA26101 for glowbugs-outgoing; Sat, 13 Mar 1999 15:35:23 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from koto.qnet.com (koto.qnet.com [207.155.37.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA26096 for ; Sat, 13 Mar 1999 15:35:20 -0800 (PST) Message-Id: <199903132335.PAA26096@piobaire.mines.uidaho.edu> Received: from [207.155.44.146] (bp00-06.ca.qnet.com) by koto.qnet.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-54999U700L2S100V35) with SMTP id AAA2500; Sat, 13 Mar 1999 15:34:38 -0800 X-Sender: jmc@pop3.av.qnet.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Sun, 14 Mar 1999 03:35:44 +0800 To: "Tom R. Rice" From: jmc@qnet.com (JMcAulay) Subject: Re: GB> Vernier mechanism mfr? Cc: glowbugs@piobaire.mines.uidaho.edu Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Tom Rice wrote: > If that logo really does reduce to an "S" and a "T", > the name "Sarkes-Tarzian" comes to mind, a mere cobweb > in the rafters of yesteryear's brain. Unfortunately, > I can only offer the name of this early outfit; details > have been dusted over. A point from where a search might > begin........ By golly, that superimposed S and T does sound like the Sarkes Tarzian logo. This was a company near Fort Wayne, Indiana (Richmond, as I recall) a number of years ago. The company, owned by a gentleman with the name Sarkes Tarzian, manufactured something like millions of TV set tuners. It wouldn't surprise me at all if that snazzy reduction drive was made by them. 73 John From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 17:28:27 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA24827 for ; Sat, 13 Mar 1999 17:28:26 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA11992 for ; Sat, 13 Mar 1999 16:35:14 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA25072 for glowbugs-outgoing; Sat, 13 Mar 1999 13:23:12 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.neta.com (qmailr@trojan.neta.com [206.124.164.10]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id NAA25067 for ; Sat, 13 Mar 1999 13:23:09 -0800 (PST) Received: (qmail 27265 invoked by uid 5724); 13 Mar 1999 21:22:38 -0000 Date: Sat, 13 Mar 1999 14:22:38 -0700 (MST) From: Jack X-Sender: jackmead@trojan To: Ken Gordon cc: Walt Turansky , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Frank Jones P-P xmitter In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Fri, 12 Mar 1999, Ken Gordon wrote: > > You will. Say, do you need a copy of the Doug DeMaw "QRN Squasher" > article? I can send it. > Ken, I checked in QST View and couldn't find a "QRN Squasher". What is it? Sounds like something we all need for 80 meters about now. Is it better than a DSP? Walt, I want to hear that Push-Pull thing! Maybe see you tonight on 3.578 QRG. de W7QQQ, Jack dit dit From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 20:56:00 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA24934 for ; Sat, 13 Mar 1999 20:56:00 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA23293 for ; Sat, 13 Mar 1999 20:02:54 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA26766 for glowbugs-outgoing; Sat, 13 Mar 1999 16:52:01 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id QAA26759; Sat, 13 Mar 1999 16:51:55 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sat, 13 Mar 1999 16:51:55 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: Jack cc: Walt Turansky , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Frank Jones P-P xmitter In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Ken, I checked in QST View and couldn't find a "QRN Squasher". > What is it? Sounds like something we all need for > 80 meters about now. Is it better than a DSP? MUCH better than a DSP. It works on the same principle as the "noise phaser" that was in the BC-312 receiver: i.e. you use a separate noise antenna and then through the miracles of electronic magic, you cancel the noise by phasing it out. The DeMaw article was not printed in QST, it was published in "CQ" magazine, July 1997, page 62. I got the boards for my two from FAR Circuits. I got a copy of the article from AB5?? (dern it, forgot his call), the same fellow who does the FMLA articles. > > Walt, I want to hear that Push-Pull thing! > Maybe see you tonight on 3.578 QRG. Yes! Me too! Are you going to be on 3.578 mHz tonight? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 13 21:10:53 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA24945 for ; Sat, 13 Mar 1999 21:10:52 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA26099 for ; Sat, 13 Mar 1999 20:17:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA27054 for glowbugs-outgoing; Sat, 13 Mar 1999 17:10:21 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id RAA27048 for ; Sat, 13 Mar 1999 17:10:18 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Sat, 13 Mar 1999 17:10:18 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Sockets needed... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Does anyone here have one (or, hopefully) two of the large, ceramic, 5 prong sockets which fit the 803? I have one, but need two more. I will happily pay anything reasonable. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sun Mar 14 16:41:43 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA25631 for ; Sun, 14 Mar 1999 16:41:41 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA24230 for ; Sun, 14 Mar 1999 15:48:47 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA06161 for glowbugs-outgoing; Sun, 14 Mar 1999 12:35:47 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA06156 for ; Sun, 14 Mar 1999 12:35:42 -0800 (PST) Received: from default (seaotter29.pcola.gulf.net [205.160.71.140]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id OAA20010 for ; Sun, 14 Mar 1999 14:35:16 -0600 (CST) Message-ID: <009101be6e5a$57ff1740$37c616d0@default> Reply-To: "rbigg" From: "rbigg" To: Subject: GB> Fw: Date: Sun, 14 Mar 1999 14:36:25 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO >OK, guys and gals---need some leads as to where I can buy some panel meters. >I have an old hunk of a final amp made by Sideband Engineers Associates. It >is the SB-2LA model, and is a great final for 75 and 40m. Use it every day. >The problem is that the panel meters scales are printed in fading red ink, >they are very horizontally compressed, are recessed too much from the >covers, and there are some opaque areas on the plastic faces. I use the >power meter in the ant tuner for tune up, not the ones in the SB-2LA that I >should be using. Ergo, I need new meters that I can read. Where do I find >such these days? > From glowbugs-owner@piobaire.mines.uidaho.edu Sun Mar 14 23:20:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA25890 for ; Sun, 14 Mar 1999 23:19:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA23503 for ; Sun, 14 Mar 1999 22:27:04 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA09658 for glowbugs-outgoing; Sun, 14 Mar 1999 19:10:01 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from snipe.prod.itd.earthlink.net (snipe.prod.itd.earthlink.net [207.217.120.62]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA09646 for ; Sun, 14 Mar 1999 19:09:53 -0800 (PST) Received: from rmccarty.earthlink.net (pool029-max6.ds9-ca-us.dialup.earthlink.net [209.178.5.129]) by snipe.prod.itd.earthlink.net (8.8.7/8.8.5) with SMTP id TAA08157; Sun, 14 Mar 1999 19:09:10 -0800 (PST) From: "Roger A. McCarty" To: "'HomeBrew'" , "Glowbugs@Piobaire. Mines. Uidaho. Edu" , "Low Power Amateur Radio Discussion" , "Steven Quick" , "nu6a (John Marthens)" , "Mike Bridges" , "Lorraine Aubert - AC6XK" , "kf6ml (Sam Imai)" , "Jim Lowman" , "Gody99@aol. com" , "Duane Alles" , "Bill Phinizy" , "Barry L. Geipel" , "w6ga (Gary Andary)" , "wb6jdh (Dick Palmer)" , "ke6npn (Roland Gakbert)" Subject: GB> Glowbug (Qrp) and Custom Meter(s) Date: Sun, 14 Mar 1999 19:14:04 -0800 Message-ID: <000c01be6e91$e157e620$8105b2d1@rmccarty.earthlink.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Importance: Normal Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO A completed GlowBug Qrp rig can be seen at; http://www.qsl.net/kd6cc/glowbug/ If you have the need for custom meters, there is pictorial essay at; http://www.qsl.net/kr6lp/meter.html Roger A. McCarty ARS KD6CC http://www.qsl.net/kd6cc Qrp-L #1555 Southern California From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 15 21:24:02 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA26668 for ; Mon, 15 Mar 1999 21:24:01 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA21951 for ; Mon, 15 Mar 1999 20:31:29 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id RAA21742 for glowbugs-outgoing; Mon, 15 Mar 1999 17:16:12 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc04.worldnet.att.net (mtiwmhc04.worldnet.att.net [204.127.131.39]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id RAA21736 for ; Mon, 15 Mar 1999 17:16:08 -0800 (PST) Received: from LOCALNAME ([12.73.250.107]) by mtiwmhc04.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990316011504.GPKQ26062@LOCALNAME>; Tue, 16 Mar 1999 01:15:04 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, From: Sandy W5TVW Subject: GB> FS: Mackay Receivers...NEW! Message-Id: <19990316011504.GPKQ26062@LOCALNAME> Date: Tue, 16 Mar 1999 01:15:04 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO This goes under the category of Solid state "boat anchors" so hope we are no off topic here! I have run across three new Mackay Radio racks full of never used gear! It looks pristine. Equipment of note is: Mackay model 3020 receiver, Mackay model 3030 receiver Mackay model 2017 400-515 Khz CW transmitter Three of each. If you may be interested, let me know by direct e-mail. I will act as go between in the negotiations on prices. Please discuss this only with me directly and not on the reflector. 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 15 22:12:50 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA26696 for ; Mon, 15 Mar 1999 22:12:50 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA20136 for ; Mon, 15 Mar 1999 21:20:19 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA22353 for glowbugs-outgoing; Mon, 15 Mar 1999 18:04:53 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA22348 for ; Mon, 15 Mar 1999 18:04:50 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D5SZFU4J; Mon, 15 Mar 1999 21:03:35 EST To: glowbugs@piobaire.mines.uidaho.edu Date: Mon, 15 Mar 1999 19:59:53 -0600 Subject: GB> a new 2.8X diode bridge. Message-ID: <19990315.200004.-371737.6.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Line-Breaks: 2-7,9-10,13-14,16-17,20-21,23-25,27-28 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO The March 99 edition of Splatter, the York Region ARC newsletter, has a bridge rectifier that, according to VE3DGX , is a real full wave voltage doubler and not a pair of half waves a la ARRL. See if you can draw it: Make a box with diodes at each corner, the arrowheads pointing right. Break the top and bottom sides of the box with caps, negative sides to the left. Crisscross the new caps with two more diodes, again arrowheaded to the right. One goes from upper left to lower right, inside the corner diodes; the other from lower left to upper right. You now have six diodes arranged around two caps with two of the diodes crossing the middle and bracketing the caps. Ground the leff side, feed a.c. at the arrowhead sides of each of the two new diodes, and take 2.8X, 120 cy d.c. across a cap to ground on the right side of the box. The author says the caps in the center should be at least 1.4X of input and each should be twice as big as the output cap on the right. de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com Student of Tecraft, ICM, and Six Meters' golden age, 1956-58. From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 15 22:57:14 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA26721 for ; Mon, 15 Mar 1999 22:57:14 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA19999 for ; Mon, 15 Mar 1999 22:04:43 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA22812 for glowbugs-outgoing; Mon, 15 Mar 1999 18:49:24 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from relay1.Hawaii.Edu (root@relay1.hawaii.edu [128.171.3.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id SAA22807 for ; Mon, 15 Mar 1999 18:49:20 -0800 (PST) Received: from uhunix4.its.hawaii.edu ([128.171.44.54]) by relay1.Hawaii.Edu with SMTP id <150828(4)>; Mon, 15 Mar 1999 16:48:32 -1000 Received: from localhost by uhunix4.its.Hawaii.Edu with SMTP id <171765(9)>; Mon, 15 Mar 1999 16:47:47 -1000 Date: Mon, 15 Mar 1999 16:47:42 -1000 From: "Jeffrey Herman (WH6U)" X-Sender: jeffreyh@uhunix4 To: mnhopkins@juno.com cc: Boatanchors@theporch.com, Glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> FMLA: Dauntless Douglas In-Reply-To: <19990313.065300.-513695.0.MNHopkins@juno.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On Sat, 13 Mar 1999 mnhopkins@juno.com wrote: > His plan to take back the old 56-60 mc band with a Five Meter I've always meant to ask why Frank wants the old 5m band back... 73, Jeff WH6U From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 16 14:50:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA27228 for ; Tue, 16 Mar 1999 14:50:18 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA05991 for ; Tue, 16 Mar 1999 13:57:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA01443 for glowbugs-outgoing; Tue, 16 Mar 1999 10:44:29 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc04.worldnet.att.net (mtiwmhc04.worldnet.att.net [204.127.131.39]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id KAA01438 for ; Tue, 16 Mar 1999 10:44:25 -0800 (PST) Received: from worldnet.att.net ([12.73.238.212]) by mtiwmhc04.worldnet.att.net (InterMail v03.02.07 118 124) with ESMTP id <19990316184335.KXTC20328@worldnet.att.net> for ; Tue, 16 Mar 1999 18:43:35 +0000 Message-ID: <36EDFD59.7D3C53EB@worldnet.att.net> Date: Tue, 16 Mar 1999 12:42:33 +0600 From: Ralph Hartwell Reply-To: ralph.hartwell@worldnet.att.net Organization: The Energy Machine X-Mailer: Mozilla 4.5 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 CC: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> More on Homebrewing Headbands References: <19990316174634.29605.qmail@hotmail.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Having never worked with music wire, I naively thought I > could saw through it. The hacksaw is not faring well cutting the 3/16 > stuff and I suppose I am going to need to torch the wire and anneal it > if I want to cut it by saw. That's tough stuff. What I do is file a small notch in the wire, then clamp the wire in a vise next to the notch. Use a pair of pliers and bend the wire at the notch. Snap! That's all there is to it, except for smoothing off the broken ends. The torch method works, but of course, causes the wire to lose it's stiffness. Clamp the "good" end in the vise so the vise keeps the wire cool, then hear the place where you want to cut it. -- Ralph W5JGV ICQ 8514638 ralph.hartwell@worldnet.att.net http://home.att.net/~ralph.hartwell Home of the Rife Biomedical Research Web Ring voice - 504-733-9281 fax - 504-733-9334 (also voice mail) From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 16 14:12:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id OAA27206 for ; Tue, 16 Mar 1999 14:12:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA05420 for ; Tue, 16 Mar 1999 13:20:03 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA00641 for glowbugs-outgoing; Tue, 16 Mar 1999 09:47:27 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f266.hotmail.com [207.82.251.157]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA00636 for ; Tue, 16 Mar 1999 09:47:22 -0800 (PST) Received: (qmail 29606 invoked by uid 65534); 16 Mar 1999 17:46:34 -0000 Message-ID: <19990316174634.29605.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Tue, 16 Mar 1999 09:46:34 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> More on Homebrewing Headbands Date: Tue, 16 Mar 1999 09:46:34 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Have been working on a plan to make a new headband for my loose high-Z cans. Tentatively, I am considering using music wire for the springy parts. I have made two brackets of sheet steel to hold the cans. These will be pinned to two 3/16 rods which will slide through aluminum blocks to which will be attached the springy bands (which I intend to cover with leather). Having never worked with music wire, I naively thought I could saw through it. The hacksaw is not faring well cutting the 3/16 stuff and I suppose I am going to need to torch the wire and anneal it if I want to cut it by saw. This will be vital to make the saw slots to hold and pin the brackets. Anyone have any experience with music wire? Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 16 16:16:51 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA27326 for ; Tue, 16 Mar 1999 16:16:50 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA02796 for ; Tue, 16 Mar 1999 15:24:16 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA02229 for glowbugs-outgoing; Tue, 16 Mar 1999 11:52:16 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from b11.b11.ingr.com (b11.b11.ingr.com [129.135.220.100]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA02224 for ; Tue, 16 Mar 1999 11:52:10 -0800 (PST) Received: from ro.com (lilliput.ics.ingr.com) by b11.b11.ingr.com (5.65c/1.921207) id AA20144; Tue, 16 Mar 1999 13:51:43 -0600 Message-Id: <36EEB64C.FECCDDE3@ro.com> Date: Tue, 16 Mar 1999 13:51:40 -0600 From: Dan Kerl X-Mailer: Mozilla 4.5 [en] (WinNT; U) X-Accept-Language: en Mime-Version: 1.0 To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> VHF superhet debugging techniques Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I'd like to ask what is probably a run-of-the-mill question to the readership of this list. While not directly concerning ham gear, I can imagine that the sort of problem presented by this question has affected more than one VHF amateur radio station operator. I'm trying to learn how to analyze problems where signals are not directly observable (at least with my test gear). My scope cuts off around 30 MC (Tek 545B) The device in question is a Browning Engineering Labs RJ-12B AM/FM broadcast tuner. The symptom is weak, unreliable performance of FM operation. All paper caps (including the masquerading-as-a-mica Micamold thing) and electrolycics have been replaced). IF alignment has been checked and is not too bad. All tubes have been replaced. The unit uses a 6AU6 RF amp and a 7F8 loctal dual triode for the LO and mixer. A 6J6 takes discriminator DC and provides a variable reactance for the AFC servo. The LO uses a Hartley configuration with the cathode tap about 1/4 the way up the 2-turn coil. The tuning variable is an accessible air gapped type. I'm suspicious of the LO. Plate voltage is a little high (~20V). If I couple my Millen GDO into the LO tank coil, the radio gets a lot more sensitive. The passive components (micas, grid resistor, etc.) display nominal values. The caps don't appear leaky (stressed with EICO 950B cap bridge). LO schematic (pardon the crummy ASCII graphics, use fixed font): DC measurements made with Fluke 8060: grid: .3V nom plate: 185V nom, 205V meas -.3V meas -----------/\/\/\---- 260V mica | | 5.6K 1W 33MMF | - mica ---||--- |7F8 - .005 ceramic to AFC 10MMF | | --- | servo plate --||------------/\/\/\----..... ground | | 10K ----- | - ceramic | /\_____ fil | - fix trim | | | | | 5MMF | | | | ground | | | | | | | ---------------- | | - .005 | | | | | - ceramic ceramic | LO | o | | | fix trim - tuning- o | ground 10MMF - section- o--------| | | o | | | | | ---------------- | ground - ceramic NPO - 5MMF | to mixer grid In the readership's experience, what is the most effective method of determining correct operation and adequate voltage output? Thanks for your patience-- -- Dan Kerl dlkerl@ro.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 16 17:39:53 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA27417 for ; Tue, 16 Mar 1999 17:39:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA18438 for ; Tue, 16 Mar 1999 16:47:35 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA03094 for glowbugs-outgoing; Tue, 16 Mar 1999 13:22:48 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (wya-lfd115.hotmail.com [207.82.252.179]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id NAA03089 for ; Tue, 16 Mar 1999 13:22:44 -0800 (PST) Received: (qmail 16010 invoked by uid 65534); 16 Mar 1999 20:59:45 -0000 Message-ID: <19990316205945.16009.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Tue, 16 Mar 1999 12:59:44 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Reduction Drives &c. Date: Tue, 16 Mar 1999 12:59:44 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Recently I acquired a couple of nice dual section air-variable caps with built in reduction. These are the type with a coaxial 1/8" shaft inside a 1/4" main shaft. The small shaft turns about 6 times faster than the outer main shaft. I devised a simple means to attach a pointer to the main shaft that I thought might be worth mentioning. My goal was to attach a pointer without some complicated set screw arrangement and which would have a low profile so as not to require a huge hole in the mounting panel. I used a piece of thin brass tubing with a 1/4" ID and cut six or eight slits around one end with a fine jeweler's saw. The tube is meant to grab the main shaft on this end; the pointer (a piece of 1/8" thick acrylic sheet with hairline scratch [knife scratch darkened with "Sharpie" ink and excess wiped clear]) is epoxied to the other end. The first thing that I tried to get some compression on the slit end was a snap ring (9/32") but this required a paper shim to get any reasonable amount of "squeeze". Next I tried a few turns cut from a 5/16" OD spring (wire size 1/32") but this gave way too much compression. Finally, using about 1 and 1/3 turns of the same spring, the compression was just right. The spring is shoved over the slit end of the brass tubing which is then pushed onto the main shaft and adjusted to match the dial scale. Friction holds the pointer in position. On another matter, I have a couple late model "Velvet Vernier" mechanisms ('50s era). What are the recommendations for lubrication for these things? Or is that verbotten? Thanks. Brad Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 16 20:29:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA27524 for ; Tue, 16 Mar 1999 20:29:24 -0500 Received: from bigboote.WPI.EDU (root@bigboote.WPI.EDU [130.215.24.2]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA16689 for ; Tue, 16 Mar 1999 19:37:10 -0500 (EST) Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by bigboote.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA10897 for ; Tue, 16 Mar 1999 19:37:06 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA04543 for glowbugs-outgoing; Tue, 16 Mar 1999 16:06:21 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from koto.qnet.com (koto.qnet.com [207.155.37.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA04538 for ; Tue, 16 Mar 1999 16:06:14 -0800 (PST) Message-Id: <199903170006.QAA04538@piobaire.mines.uidaho.edu> Received: from [209.221.196.139] (56k-palm-02-28.dial.qnet.com) by koto.qnet.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-54999U700L2S100V35) with SMTP id AAA9546; Tue, 16 Mar 1999 16:05:36 -0800 Subject: Re: GB> VHF superhet debugging techniques Date: Tue, 16 Mar 99 16:10:02 -0700 x-sender: jmc@pop3.av.qnet.com x-mailer: Claris Emailer 1.1 From: JMcAulay To: "Dan Kerl" , "GlowBugs" Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 3/19/19 7:53 PM, Dan Kerl wrote, in part: >In the readership's experience, what is the most effective method >of determining correct operation and adequate voltage output? Hi, Dan: That's an excellent question, and maybe it'll get several good answers. However, I have a problem with the circuit. Somehow, it seems hard for me to believe that the 7F8 is going to oscillate a whole lot with only 10K grid leak. I'd have expected a considerably higher value resistor. 73 John WA6QPL From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 17 11:21:28 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA28079 for ; Wed, 17 Mar 1999 11:21:28 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA30051 for ; Wed, 17 Mar 1999 10:29:23 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA12643 for glowbugs-outgoing; Wed, 17 Mar 1999 07:08:16 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from b11.b11.ingr.com (b11.b11.ingr.com [129.135.220.100]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id HAA12638 for ; Wed, 17 Mar 1999 07:08:10 -0800 (PST) Received: from ro.com (lilliput.ics.ingr.com) by b11.b11.ingr.com (5.65c/1.921207) id AA22477; Wed, 17 Mar 1999 09:07:58 -0600 Message-Id: <36EFC54C.76BF29FA@ro.com> Date: Wed, 17 Mar 1999 09:07:56 -0600 From: Dan Kerl X-Mailer: Mozilla 4.5 [en] (WinNT; U) X-Accept-Language: en Mime-Version: 1.0 To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> VHF superhet debugging techniques References: <199903170005.SAA21603@sh1.ro.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Thanks for the information. I used Roy's suggestion of sticking a 1 meg resistor on the Fluke probe (input Z = 10M, 100MMF) to decouple the meter. From a cold start I noticed that the grid DC voltage was around -2.7V. The reception was weak, with a few strong signals being received over most of the band. While I was probing the grid pin on the loctal socket, the voltage would occasionally drop to around -1.8V. When this occurred, reception got alot better. After the unit was on for a while, I couldn't get the -1.8V situation to occur, except by closing the plates on the tuning variable. Freeze spray (yeah , I know - this isn't an official boatanchor debug method :-) applied to the passive components appeared to have no effect. The next thing I'm planning to try is to use some Deoxit and a flat toothpick to clean the loctal socket. I'm also going to experiment with the value of the grid leak resistor as John suggested it seemed too small. This observation is supported by a sentence concerning grid leak detection in Henney's "Principles of Radio" 3rd ed., which states: "Because he grid leak is effectively across the tuned circuit feeding the detector, it is important that the value in resistance be high if any selectivity and gain are to be secured in the input tuned circuit." Thus, the grid leak will affect the Q of the oscillator tank. It seems you'd want to ensure that the 7F8 is biased into class C operation to "stay out of the tank's hair" as much as possible. I'll also try to lay hands on another 7F8. The one I'm using now checks OK on the Hickok. Thanks again-- -- Dan Kerl dlkerl@ro.com From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 17 10:21:36 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA28043 for ; Wed, 17 Mar 1999 10:21:35 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA15987 for ; Wed, 17 Mar 1999 09:29:29 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA12109 for glowbugs-outgoing; Wed, 17 Mar 1999 06:18:27 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp11.bellglobal.com (smtp11.bellglobal.com [204.101.251.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA12104 for ; Wed, 17 Mar 1999 06:18:23 -0800 (PST) Received: from mrelay ([192.168.1.119]) by smtp11.bellglobal.com (8.8.5/8.8.5) with ESMTP id JAA05159 for ; Wed, 17 Mar 1999 09:20:17 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F8Q00F79T1I6A@mrelay.bellglobal.com> for glowbugs@piobaire.mines.uidaho.edu; Wed, 17 Mar 1999 09:17:44 -0500 (EST) Date: Wed, 17 Mar 1999 04:15:46 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: GB> need tube data To: amps@contesting.com Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Was going through some "junque" last night and came across a tube and socket I've had for a while (twenty years or more) and couldn't remember when or why I came by it. Anyway... I tried to look up the number 3D22A and couldn't seem to find anything on it. Tried the old (1962 or so) RCA xmting tube manual, an old GE rcving tube manual and the back pages of several years of the Handbook. Nothing. Anybody know what it is, what it may have been used for, basing, etc.? could be used in a future project (but after 20 years of procrastinating I doubt it!). Thanx - Bill H. From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 17 13:52:24 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA28187 for ; Wed, 17 Mar 1999 13:52:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA24981 for ; Wed, 17 Mar 1999 13:00:21 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA14199 for glowbugs-outgoing; Wed, 17 Mar 1999 09:43:44 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA14194 for ; Wed, 17 Mar 1999 09:43:42 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Wed, 17 Mar 1999 09:43:41 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Thanks, Bobbi... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO for the neat article on the 3 tube TRF receiver from the 1931 QST! Lots of fun to read, and since I have 3 each '32 tubes here, I guess I will add it to my "Project Pile" :-) I think I will scan it and put it on my web site. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 18 01:00:32 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA28635 for ; Thu, 18 Mar 1999 01:00:32 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA25437 for ; Thu, 18 Mar 1999 00:08:36 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA20118 for glowbugs-outgoing; Wed, 17 Mar 1999 20:50:30 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mailmx.micron.net (mailmx.micron.net [198.60.253.39]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA20113 for ; Wed, 17 Mar 1999 20:50:24 -0800 (PST) Received: from main (cboi18p16.boi.micron.net [209.19.158.211]) by mailmx.micron.net (8.8.5/8.8.5) with SMTP id VAA10325 for ; Wed, 17 Mar 1999 21:49:42 -0700 (MST) Message-Id: <3.0.6.32.19990317215008.00793ac0@pophost.micron.net> X-Sender: kj7f@pophost.micron.net X-Mailer: QUALCOMM Windows Eudora Light Version 3.0.6 (32) Date: Wed, 17 Mar 1999 21:50:08 -0700 To: glowbugs@piobaire.mines.uidaho.edu From: Terry Dobler Subject: GB> FS: HV Power supply Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Gang, Any one in the Pacific Northwest need a nice HV power supply? This one runs on 220 VAC, has a variac and metering. Should be good for 2500 VDC at 1.5 A. This ought to run just about anything you guys could build! It is far too heavy to ship, I about ruined my back unloading it! I am planning a trip to North Idaho next week and could deliver as far as Spokane, Wa if some one up that way is interested. Terry KJ7F From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 18 12:05:46 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA29051 for ; Thu, 18 Mar 1999 12:05:44 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA31562 for ; Thu, 18 Mar 1999 11:13:52 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA25980 for glowbugs-outgoing; Thu, 18 Mar 1999 07:58:13 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp11.bellglobal.com (smtp11.bellglobal.com [204.101.251.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA25974 for ; Thu, 18 Mar 1999 07:58:08 -0800 (PST) Received: from mrelay ([192.168.1.119]) by smtp11.bellglobal.com (8.8.5/8.8.5) with ESMTP id LAA23758 for ; Thu, 18 Mar 1999 11:00:01 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F8S0085QSBQTR@mrelay.bellglobal.com> for glowbugs@piobaire.mines.uidaho.edu; Thu, 18 Mar 1999 10:57:27 -0500 (EST) Date: Thu, 18 Mar 1999 05:55:25 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: GB> 3D22A tube data To: amps@contesting.com Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Thanks to all who replied with data on this one... guess I won't have much use for a thyratron in the near future... maybe make it into paperweight, bookend, lamp or other "dust collector". - Bill H. From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 18 18:48:41 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA29344 for ; Thu, 18 Mar 1999 18:48:41 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA01789 for ; Thu, 18 Mar 1999 17:56:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA00279 for glowbugs-outgoing; Thu, 18 Mar 1999 14:37:34 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from smtp11.bellglobal.com (smtp11.bellglobal.com [204.101.251.53]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id OAA00274 for ; Thu, 18 Mar 1999 14:37:29 -0800 (PST) Received: from mrelay ([192.168.1.119]) by smtp11.bellglobal.com (8.8.5/8.8.5) with ESMTP id RAA00742 for ; Thu, 18 Mar 1999 17:39:06 -0500 (EST) Received: from ns by mrelay.bellglobal.com (PMDF V5.1-12 #26722) with SMTP id <0F8T00M0HASU77@mrelay.bellglobal.com> for glowbugs@piobaire.mines.uidaho.edu; Thu, 18 Mar 1999 17:36:31 -0500 (EST) Date: Thu, 18 Mar 1999 12:34:40 +0000 From: Bill_Henderson@ocdsb.edu.on.ca (Bill Henderson) Subject: GB> Re: 24ac to 12 dc To: rbigg@pcola.gulf.net Cc: glowbugs@piobaire.mines.uidaho.edu Message-id: Organization: Ottawa Carleton District School Board Content-id: MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit X-Gateway: NASTA Gate 2.0 for FirstClass(R) References: <045f01be7189$3f407640$7dc616d0@default> Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO How about a three terminal regulator... they only need 3 volts or so minimum headroom (min. 15 vdc input, some as high as 27vdc input at max) and can be found in 1 to 3 amps sizes. Just heatsink it really well... maybe use small value caps on input and output to gnd. for suppression of "nasties". Looking for a 7812 type positive voltage regulator. Check at the local Radio Shack or tv repair shop. - Bill H. From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 18 20:02:38 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA29383 for ; Thu, 18 Mar 1999 20:02:38 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA31415 for ; Thu, 18 Mar 1999 19:10:32 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA01079 for glowbugs-outgoing; Thu, 18 Mar 1999 15:49:06 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id PAA01072; Thu, 18 Mar 1999 15:48:52 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Thu, 18 Mar 1999 15:48:52 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: rbigg cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: your mail In-Reply-To: <045f01be7189$3f407640$7dc616d0@default> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Need some help on this one. I am working with a young guy who is trying to > convert approx 24vac to 12vdc. The ac is coming off of an alternator on a > small atv, and will be hooked to the lights. There are two problems, one of > which I have a solution to. One is getting the ac to dc. The answer there > appears to be to use a simple bridge rectifier circuit to get full wave out. > The other problem is one of regulation. The ac volts go up and down, > somewhat dependent on throttle settings. > > I am wondering if using a voltage divider pot on the output of the bridge > circuit will give adequate regulation? What value should he use for such a > pot? The lamp total draw is about 3.5 amps. Sounds like a pot would do the Bridge rectifier, to a three-terminal regulator IC. These come in various current ratings up to 10 amps. If you need more current than that, use a series "pass" transistor or two or three or more. Easy. Look in any recent ARRL Handbook in the powersupply section. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 18 23:20:28 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA29484 for ; Thu, 18 Mar 1999 23:20:27 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA08573 for ; Thu, 18 Mar 1999 22:28:43 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA03585 for glowbugs-outgoing; Thu, 18 Mar 1999 19:17:45 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from postal.indy.net (postal.indy.net [199.3.65.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA03580 for ; Thu, 18 Mar 1999 19:17:41 -0800 (PST) Received: from indy1.indy.net (root@indy1.indy.net [199.3.65.5]) by postal.indy.net (8.9.2/8.9.2) with ESMTP id WAA19169; Thu, 18 Mar 1999 22:17:29 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy1.indy.net (8.8.7/8.8.7) with SMTP id WAA08795; Thu, 18 Mar 1999 22:18:02 -0500 (EST) Date: Thu, 18 Mar 1999 22:18:01 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy1 To: Ken Gordon cc: rbigg , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: your mail In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO He doesn't need or want a bridge--Vout will be too high for a plain 7812. Halfwave is okay, filter condenser doesn't need to be too big as the 7812 will regulate out a lot of the ripple if he's got enough filter to keep the low spots above about 15 or 16V. Bootstrap a pass transistor around the three-leg reg for more current--I think one 2N3055 is good for 5 or 6 A with a decent heatsink. Sheesh, he's got a 24V alternator! What eats your lunch with a three-terminal regulator is pushing the required drop too hard; it has to go up as heat. Had a bunch of audio distribution amps at one BC station you could just about fry eggs on 'cos some genius had saved a quarter by buying an off-the-shelf power transformer that produced about 10V too many after the filter.... Ideally, you stay just above the dropout voltage in worst-case low conditions when working with such regulators. As long as the depths of ripple don't knock you out of regulation, they'll smooth it right out! The ARRL HB in recent years has had some power transistor wrapped around a 78nn circuits that work well, though you need to tack some bypasses *directly* on the input and output of the reg to make 'em stable (0.1 to 1.0 uF) and it's a good idea to do a 0.001 uF on the output of the supply so RF doesn't make it act up. Just about as complicated as a hammer, the only trick to it is picking the right one and not smashing your thumb with it. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 19 00:24:40 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA29517 for ; Fri, 19 Mar 1999 00:24:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA22478 for ; Thu, 18 Mar 1999 23:32:53 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA04411 for glowbugs-outgoing; Thu, 18 Mar 1999 20:23:25 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id UAA04401; Thu, 18 Mar 1999 20:23:12 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Thu, 18 Mar 1999 20:23:12 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Roberta J. Barmore" cc: rbigg , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: 24 vdc to 12 vdc. In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > He doesn't need or want a bridge--Vout will be too high for a plain 7812. Right, but I prefer bridges since the regulation is better and one doesn't then need such large filters. > Halfwave is okay, filter condenser doesn't need to be too big as the 7812 > will regulate out a lot of the ripple if he's got enough filter to keep > the low spots above about 15 or 16V. True, but that also causes heat losses in the 7812. > Bootstrap a pass transistor around > the three-leg reg for more current--I think one 2N3055 is good for 5 or 6 > A with a decent heatsink. Sheesh, he's got a 24V alternator! Oh! I thought he said "transformer", which would actually make it worse, since the output voltage would then be 1.414 times the RMS voltage. > What eats your lunch with a three-terminal regulator is pushing the > required drop too hard; it has to go up as heat. True. The point at which 3 terminal regulators drop out is about 3 volts above their regulation point. I prefer about 7 volts at the lowest, and even that gets a bit iffy depending on load. > Had a bunch of audio > distribution amps at one BC station you could just about fry eggs on 'cos > some genius had saved a quarter by buying an off-the-shelf power > transformer that produced about 10V too many after the filter.... Or crummy heat-sinking. It has been my experience that MOST heat-sinking in lab gear is too small. > Ideally, you stay just above the dropout voltage in worst-case low > conditions when working with such regulators. I prefer about twice that. > As long as the depths of > ripple don't knock you out of regulation, they'll smooth it right out! Again, there are heat losses caused by high ripple. See the National Semiconductor Handbook about that for the theory. > The ARRL HB in recent years has had some power transistor wrapped > around a 78nn circuits that work well, though you need to tack some > bypasses *directly* on the input and output of the reg to make 'em stable > (0.1 to 1.0 uF) and it's a good idea to do a 0.001 uF on the output of the > supply so RF doesn't make it act up. Right!!!! > Just about as complicated as a > hammer, the only trick to it is picking the right one and not smashing > your thumb with it. > I believe, if memory serves me correctly, the 7812 series are rated for up to 37 volts input. In my experience this is WAY too high. However, 18 - 20 volts is about right. If the guy is using an alternator, then, unless he is pulling the 24 Volts off the 3 phase AC windings, he doesn't need rectifiers at all unless he wants to use their voltage drop to drop the voltage to the regulator a bit. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 19 03:33:43 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA29656 for ; Fri, 19 Mar 1999 03:33:43 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA14959 for ; Fri, 19 Mar 1999 02:42:05 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id XAA06084 for glowbugs-outgoing; Thu, 18 Mar 1999 23:31:19 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id XAA06078 for ; Thu, 18 Mar 1999 23:31:12 -0800 (PST) Received: from default (rorqual28.pcola.gulf.net [208.22.198.91]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id BAA23784 for ; Fri, 19 Mar 1999 01:30:24 -0600 (CST) Message-ID: <04a001be71da$bf70c300$7dc616d0@default> Reply-To: "rbigg" From: "rbigg" To: Date: Fri, 19 Mar 1999 01:33:04 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MIMEOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Thanks for the great responses on the 24vac to 12vdc question/topic. All help was appreciated. de K5BDJ From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 19 09:19:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id JAA29833 for ; Fri, 19 Mar 1999 09:19:13 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id IAA20522 for ; Fri, 19 Mar 1999 08:27:40 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id FAA09259 for glowbugs-outgoing; Fri, 19 Mar 1999 05:13:49 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from postal.indy.net (postal.indy.net [199.3.65.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id FAA09249 for ; Fri, 19 Mar 1999 05:13:43 -0800 (PST) Received: from indy3.indy.net (root@indy3.indy.net [199.3.65.14]) by postal.indy.net (8.9.2/8.9.2) with ESMTP id IAA23628; Fri, 19 Mar 1999 08:13:59 -0500 (EST) Received: from localhost (rbarmore@[127.0.0.1]) by indy3.indy.net (8.8.7/8.8.7) with SMTP id IAA12639; Fri, 19 Mar 1999 08:14:25 -0500 (EST) Date: Fri, 19 Mar 1999 08:14:19 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy3 To: Ken Gordon cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: 24 vdc to 12 vdc. In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Ken! Yes, the ripple goes up as heat; but which is the higher average power, ripple from a full-wave rectifier, or ripple from a half-wave rectifier? The design problem here starts out with 2X too much voltage; the trick is to make most of the excess go away with the least effort and heat possible. Other thing is, all the guy said was "24-Volt alternator." Used precisely, all "alternator" means is "rotary device that produces AC," just as "generator" is "a rotary device that produces DC." An automobile alternator (multiphase, with built-in diodes) is a special case. I took him at his word; if he's got something yanked out of the engine compartment of a big old truck, he should go back to the junkyard and take one from a passenger car instead! (At which point he may need a low-droupout regulator, but the special case of exactly this situation has received a lot of attention from the semiconductor makers and such things can be dug up in the catalogs). As a general rule, I *deplore* sending a lot of power up as heat just because it can be done, especially in regulators. The little (19" w X 1.75" h X 10" d) audio DAs I cited had the regs bolted right to the enclosure; all kinds of heat-sink area but just too much power being boiled away. Oh, it maybe could have been tamed by tripling the size of 'em and adding massive big fins--but they'd've still been running hot. You just can't get the heat away from the semiconductor junctions quickly enough in such a case. It is better to avoid such situations if at all possible--that professional designers do not is a sign of laziness, stupidity, or both. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 19 09:45:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id JAA29851 for ; Fri, 19 Mar 1999 09:45:28 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id IAA26544 for ; Fri, 19 Mar 1999 08:53:56 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id FAA09641 for glowbugs-outgoing; Fri, 19 Mar 1999 05:44:52 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from postal.indy.net (postal.indy.net [199.3.65.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id FAA09636 for ; Fri, 19 Mar 1999 05:44:47 -0800 (PST) Received: from indy3.indy.net (root@indy3.indy.net [199.3.65.14]) by postal.indy.net (8.9.2/8.9.2) with ESMTP id IAA29822; Fri, 19 Mar 1999 08:45:03 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy3.indy.net (8.8.7/8.8.7) with SMTP id IAA15124; Fri, 19 Mar 1999 08:45:36 -0500 (EST) Date: Fri, 19 Mar 1999 08:45:34 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy3 To: BA cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> 1935 "Newcomer" book update Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! To anyone who's sent in an order recently (or is planning to): just dropped the master copy off at the printer's for another batch, 20 this time. The first run of 12 went *fast!* If all goes as planned, I'll pick up the new batch tonight and move 'em out over the weekend. ...I'm amazed by the response. Really thought the market was about saturated! 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 19 11:23:54 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA29899 for ; Fri, 19 Mar 1999 11:23:54 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA22434 for ; Fri, 19 Mar 1999 10:32:23 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA10446 for glowbugs-outgoing; Fri, 19 Mar 1999 07:10:14 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id HAA10432; Fri, 19 Mar 1999 07:09:48 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 19 Mar 1999 07:09:48 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Roberta J. Barmore" cc: BA , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> 1935 "Newcomer" book update In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > ...I'm amazed by the response. Really thought the market was about > saturated! Not! :-) Ken From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 19 11:24:25 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA29904 for ; Fri, 19 Mar 1999 11:24:24 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA22205 for ; Fri, 19 Mar 1999 10:32:54 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA10583 for glowbugs-outgoing; Fri, 19 Mar 1999 07:22:03 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id HAA10575; Fri, 19 Mar 1999 07:21:51 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 19 Mar 1999 07:21:51 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Roberta J. Barmore" cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: 24 vdc to 12 vdc. In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Hi, Ken! > > Yes, the ripple goes up as heat; but which is the higher average power, > ripple from a full-wave rectifier, or ripple from a half-wave rectifier? Full-wave, of course. What I meant was that if the ripple percentage is higher, the regulator has to work harder (i.e. more heat) to smooth it. > > The design problem here starts out with 2X too much voltage; the trick > is to make most of the excess go away with the least effort and heat > possible. True, however, one must also give the regulator some "headroom" to work with. Compromises, as you well know, are a part of designing. If you have the proper tools, you can design closer to the edge. If you don't have the proper tools, you must work with what you have, in this case, we have 24 V (I still don't know if that was DC or AC) and he wants 12 V (if for lights, I can usually safely assume he can use DC, unless a flourescent light is involved, in which case it could be one or the other but not both. I assumed incandescent.) In any case, in the situation mentioned, I didn't think that 12 volts was too much, and still don't. > > Other thing is, all the guy said was "24-Volt alternator." Used > precisely, all "alternator" means is "rotary device that produces AC," > just as "generator" is "a rotary device that produces DC." An automobile > alternator (multiphase, with built-in diodes) is a special case. I took > him at his word; if he's got something yanked out of the engine > compartment of a big old truck, he should go back to the junkyard and take > one from a passenger car instead! (At which point he may need a > low-droupout regulator, but the special case of exactly this situation has > received a lot of attention from the semiconductor makers and such things > can be dug up in the catalogs). I had a big old Leece-Neville alternator out of a truck once: it was polyphase. I had assumed that all small alternators were polyphase. > > As a general rule, I *deplore* sending a lot of power up as heat just > because it can be done, especially in regulators. The little (19" w X > 1.75" h X 10" d) audio DAs I cited had the regs bolted right to the > enclosure; all kinds of heat-sink area but just too much power being > boiled away. Oh, it maybe could have been tamed by tripling the size of > 'em and adding massive big fins--but they'd've still been running hot. > You just can't get the heat away from the semiconductor junctions quickly > enough in such a case. It is better to avoid such situations if at all > possible--that professional designers do not is a sign of laziness, > stupidity, or both. All true: still, compromises are sometimes warranted, although not in the case of your DAs. Take care, all. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 19 19:30:35 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA30354 for ; Fri, 19 Mar 1999 19:30:34 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA03562 for ; Fri, 19 Mar 1999 18:39:07 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA15079 for glowbugs-outgoing; Fri, 19 Mar 1999 15:13:49 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.hits.net ([206.127.244.4]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA15074 for ; Fri, 19 Mar 1999 15:13:44 -0800 (PST) Received: from 206.127.244.103 (excalibur23.hits.net [206.127.244.89]) by mail.hits.net (8.9.1a/8.8.5) with SMTP id NAA02547; Fri, 19 Mar 1999 13:12:51 -1000 (HST) Message-ID: <36F2BA77.59FD@hits.net> Date: Fri, 19 Mar 1999 10:58:31 -1000 From: Peter Demmer Reply-To: ampruss@hits.net Organization: AMPRUSS Co. X-Mailer: Mozilla 3.01 (Macintosh; I; 68K) MIME-Version: 1.0 To: Bill Henderson CC: rbigg@pcola.gulf.net, glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> Re: 24ac to 12 dc References: <045f01be7189$3f407640$7dc616d0@default> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Bill Henderson wrote: > > How about a three terminal regulator... they only need 3 volts or so > minimum headroom (min. 15 vdc input, some as high as 27vdc input at > max) and can be found in 1 to 3 amps sizes. Just heatsink it really > well... maybe use small value caps on input and output to gnd. for > suppression of "nasties". > Looking for a 7812 type positive voltage regulator. Check at the local > Radio Shack or tv repair shop. > - Bill H. Peter wrote; Good idea Bill. I have used this the LM317 many times. Sometimes with a pass transister for the sometimes large appitite of vacuum tube heater string. Also please don't forget the SS diode placed with the anode terminal soldered onto the regulator output and the cathode onto the regulator input terminal. Just in case one breakes the series string by unpluging one or all the tubes with the power supply switched on. Especially if the tube heaters are wired in series and have by heater/filment pass capacitance wired into the ciircuit. The instantious back flow of current will xap the smoke out of the regulator. I know, I know, some sandy stuff slipped in but please take heart. Four out of five is'nt bad is it. (: KH6CTQ From glowbugs-owner@piobaire.mines.uidaho.edu Thu Mar 18 18:06:39 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA29321 for ; Thu, 18 Mar 1999 18:06:39 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA24416 for ; Thu, 18 Mar 1999 17:14:53 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA29565 for glowbugs-outgoing; Thu, 18 Mar 1999 13:47:41 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from pompano.pcola.gulf.net (root@gulf.net [198.69.72.14]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA29560 for ; Thu, 18 Mar 1999 13:47:37 -0800 (PST) Received: from default (rorqual20.pcola.gulf.net [208.22.198.83]) by pompano.pcola.gulf.net (8.9.1a/8.9.1) with SMTP id PAA26039 for ; Thu, 18 Mar 1999 15:47:08 -0600 (CST) Message-ID: <045f01be7189$3f407640$7dc616d0@default> Reply-To: "rbigg" From: "rbigg" To: Date: Thu, 18 Mar 1999 15:49:41 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MIMEOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Need some help on this one. I am working with a young guy who is trying to convert approx 24vac to 12vdc. The ac is coming off of an alternator on a small atv, and will be hooked to the lights. There are two problems, one of which I have a solution to. One is getting the ac to dc. The answer there appears to be to use a simple bridge rectifier circuit to get full wave out. The other problem is one of regulation. The ac volts go up and down, somewhat dependent on throttle settings. I am wondering if using a voltage divider pot on the output of the bridge circuit will give adequate regulation? What value should he use for such a pot? The lamp total draw is about 3.5 amps. Sounds like a pot would do the job, but would be prohibitely expensive because it would need to carry about 50 watts of power through it without burning up. Assuming though that a voltage divider like this would be practical, what would be a good value of resistance to shoot for in the pot? What else can we try? Are zener diodes still avail, and would the right one of those (or two) be a good regulator? If so, give me some zener numbers that I might can find at the local elex emporium. The young man is trying to build something he can use instead of having to lay out $100 or so for a Yamaha regulator pack/module. From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 20 13:31:53 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA30939 for ; Sat, 20 Mar 1999 13:31:52 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA27578 for ; Sat, 20 Mar 1999 12:40:42 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA25246 for glowbugs-outgoing; Sat, 20 Mar 1999 09:30:47 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id JAA25241 for ; Sat, 20 Mar 1999 09:30:42 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D56XZ7C4; Sat, 20 Mar 1999 12:29:31 EST To: Glowbugs@piobaire.mines.uidaho.edu Date: Sat, 20 Mar 1999 11:15:49 -0600 Subject: GB> FMLA: Press v. Christie Message-ID: <19990320.112610.-388805.0.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO "Remarkable," said Preston Anderson as he regarded the vintage equipment on the workbench before him. "A rugged final circuit able to cover both 6 and 2 Meters, without cavities, in 1957." "Closer to '55," said Frank of the Johnson 6N2, "The circuit first appeared in GE Ham News as The Bonus 100 Transmitter." Frank, who plans to take back 56-60 mc with a Five Meter Liberation Army was speaking to the youngest son of his friend Carl Anderson. The younger Anderson, just back from the Army, was spending some time with Frank prior to reporting to an 11th hour Annapolis appointment in the Summer. His ham call was a vanity commemorating his grandfather, but the youth was quite knowledgeable and, as Frank earlier verified, not a "codeless Extra." "But I am still troubled, sir, by your altering it to operate on 58 MHz." Although a blond 6 footer of 185 or so, Frank still regarded the youth as "green." The chief of Frank's bodyguards, Christie, was regarding the soon-to-be midshipman more elementally. "Your dad is an ACLU lawyer," said Frank, "What does he say about Plessy v. Ferguson?" "A great tragedy, really," the young man said. "Separate is inherently unequal as the Court finally ruled in Brown in 1954." Frank grinned as the youth took the bait, but Christie looked as if she just took medicine. "For the period 1891 to 1954, then, was Plessy right or even the law in any meaningful sense?" The young man mused and finally said, "My father makes that same sort of argument -- have you been in close contact with him over the years?" "I had not seen him in over 25 years when Carl and Jerry came by to help with a difficultly I had getting some children a proper parade." Frank assured. "But we both read Thomas Jefferson in school." "There are some things the government may not do." Press looked confused and Christie brightened slightly as Frank continued: "We radio amateurs, licensed or not, had 5M from the first." "We made the great propagation discoveries." "We also established our rights by adverse possession but the central government took it from us." "It lacked that authority." Christie was smiling now, but Press was perplexed. "I must think that over carefully," he promised. The Johnson 6N2, worthless to collectors for lack of a case, came from an Internet garage sale. Frank, who prefers home brew, still buys up all the old Six Meter AM gear he can find to use as "stepping stones" as he phrases it. The same afternoon a previously modified Heath AT-1 got a new final and Press easily converted a DX-60 from a 5X8 card of mods Frank keeps in a file. He would not, however, test it on 58 mc. With the work done, he invited Christie to walk in a nearby park. She happily accepted, leaving her relief, a jackbooted Zealot I call the WARmon, to watch Frank. As the couple walked aimlessly beside the small lake, Press spoke: "In these few days, I have carefully watched Frank for any sign of Fascist leanings," he said. "My father made some allusions about "not falling off the right edge" during this visit, but Frank seems a reasoned fellow to me." "His opinions would seem to be within the area of acceptable dissent, so I conclude that the warning must have been about someone else." "It could not be your companion, because my mother says it "goes a long way back." He skipped a rock across the surface and continued: "That said, I fear I am again at a somewhat hidden period of my parent's life." "I can only conclude I am being warned of a chum of my father's who took a tragically wrong turn after their graduation from Parvoo College." "When my parents speak of it at all, it is in guarded tones and my older siblings are mute on the subject." "Might you know anything of such a person?" he asked Christie, or would have asked her had she not been gone when he turned. She was walking back to the house and, on catching up with her, he saw she was crying. "What did I say?" he asked as he offered her his handkerchief. She took it and, peering over it so only her moist eyes showed, said, "General Gerald Bishop of the WAR, your mystery man and the "Jerry" of Carl and Jerry, is my daddy." de ab5L, Michael Hopkins MNHopkins@JUNO.com FMLA XXVIII Student of ICM, Tecraft and Six Meter's Golden Age, 1956-58 From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 20 01:33:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id BAA30587 for ; Sat, 20 Mar 1999 01:33:11 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id AAA23322 for ; Sat, 20 Mar 1999 00:41:50 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id VAA18089 for glowbugs-outgoing; Fri, 19 Mar 1999 21:25:01 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m25.boston.juno.com (m25.boston.juno.com [205.231.100.187]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id VAA18080 for ; Fri, 19 Mar 1999 21:24:56 -0800 (PST) Received: (from w7dra@juno.com) by m25.boston.juno.com (queuemail) id D55NH42R; Sat, 20 Mar 1999 00:24:13 EST To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> cathode followers at 80 m Message-ID: <19990319.183002.3535.0.w7dra@juno.com> X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 1-3,6-15 From: michael l dormann Date: Sat, 20 Mar 1999 00:24:13 EST Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO wroking on an arc5 mod, 6j5 osc, 6j5 (or 6n7) cath follower and 2e26 pa. a 5 watt job out of a much butchered (not by me) arc5. my problem: the cath follower works ut to about 1.3 Mhz, but not higher. changed tubes, resistor values, but seems the circuit is frequency dependent. it it time to boot strap? please some suggestions thnak you 73 mike dormann w7dra@juno.com ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 20 20:52:06 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA31241 for ; Sat, 20 Mar 1999 20:52:02 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA24222 for ; Sat, 20 Mar 1999 20:00:57 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA28617 for glowbugs-outgoing; Sat, 20 Mar 1999 16:47:00 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.ils.net (server1.ils.net [209.135.103.11]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA28612 for ; Sat, 20 Mar 1999 16:46:56 -0800 (PST) Received: from modem55.ils.net (modem55.ils.net [209.135.103.55]) by mail.ils.net (8.8.8/8.8.8) with SMTP id TAA12335 for ; Sat, 20 Mar 1999 19:47:07 -0500 (EST) Date: Sat, 20 Mar 1999 19:47:07 -0500 (EST) Message-Id: <199903210047.TAA12335@mail.ils.net> X-Sender: toneri@mail.ils.net (Unverified) X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: glowbugs@piobaire.mines.uidaho.edu From: L & M Subject: GB> Amperite 4H4 regulator query. Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Is the 4H4 current regulator tube the same as the 4H4-C or are the ratings different? I could only find a reference for the 4H4. thanks, Mike VE3FGU ********************************************************** Mike (VE3FGU) & Lynda Toneri E-mail: toneri@ils.net Keswick, Ontario 26' Nonsuch #196 "Maxicat" Webpages:http://www.geocities.com/heartland/meadows/8218 http://www.angelfire.com/on/ve3fgu *********************************************************** From glowbugs-owner@piobaire.mines.uidaho.edu Sun Mar 21 05:24:41 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id FAA31547 for ; Sun, 21 Mar 1999 05:24:40 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id EAA15665 for ; Sun, 21 Mar 1999 04:33:40 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id BAA03597 for glowbugs-outgoing; Sun, 21 Mar 1999 01:25:55 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc05.worldnet.att.net (mtiwmhc05.worldnet.att.net [204.127.131.40]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id BAA03592 for ; Sun, 21 Mar 1999 01:25:51 -0800 (PST) Received: from LOCALNAME ([12.65.130.53]) by mtiwmhc05.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990321092430.FWSA15434@LOCALNAME>; Sun, 21 Mar 1999 09:24:30 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, , heathkit@qth.net, HEATH@LISTSERV.TEMPE.GOV From: Sandy W5TVW Subject: GB> Pending??? Message-Id: <19990321092430.FWSA15434@LOCALNAME> Date: Sun, 21 Mar 1999 09:24:30 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I spent a session in the hospital and got very behind on "transactions" in progress. If anyone is holding something for me out there, please jog my memory! It's been a nightmare since I got back home and I've lost track of who I promised to buy from who, or supply manual copies to who. Please "jog" my memory and bear with me until I get things back on an even keel! Some of you have been notofied the check-goods are in the mail. 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Sun Mar 21 05:30:34 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id FAA31555 for ; Sun, 21 Mar 1999 05:30:33 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id EAA16639 for ; Sun, 21 Mar 1999 04:39:34 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id BAA03691 for glowbugs-outgoing; Sun, 21 Mar 1999 01:32:46 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc04.worldnet.att.net (mtiwmhc04.worldnet.att.net [204.127.131.39]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id BAA03684 for ; Sun, 21 Mar 1999 01:32:42 -0800 (PST) Received: from LOCALNAME ([12.65.130.254]) by mtiwmhc04.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990321093121.CRWD1671@LOCALNAME>; Sun, 21 Mar 1999 09:31:21 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: k2uxe@ibm.net, artwinte@sprynet.com, dbrady@us.ibm.com, jackmead@getnet.com, msix@nmia.com, K5DOA@aol.com, w5juc@juno.com, ac5am1@juno.com, ws4s@INFOAVE.NET, rbarmore@indy.net, keng@uidaho.edu, na4g@weedcon1.cropsci.ncsu.edu, boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, cw@qth.net, From: Sandy W5TVW Subject: GB> WTD: RAK-7/RAL-7 Boook Message-Id: <19990321093121.CRWD1671@LOCALNAME> Date: Sun, 21 Mar 1999 09:31:21 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Apewroidic appeal for the whereabouts of an original manual for the Navy RAK-7/RAL-7 manual published by Bureau of Ahips, U.S. Navy. I have a photocopy (partial), buy want the original manual for my archives. Any one out there have one for sale or trade? 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 22 03:11:58 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA32360 for ; Mon, 22 Mar 1999 03:11:57 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA06247 for ; Mon, 22 Mar 1999 02:21:14 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA14361 for glowbugs-outgoing; Sun, 21 Mar 1999 22:58:43 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mx.seanet.com (dns2.seanet.com [199.181.164.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA14355 for ; Sun, 21 Mar 1999 22:58:38 -0800 (PST) Received: from seanet.com (q19.dialup.seanet.com [207.12.129.179]) by mx.seanet.com (8.8.8/Seanet-8.7.3) with ESMTP id WAA27820 for ; Sun, 21 Mar 1999 22:57:48 -0800 (PST) Message-ID: <36F5ECDA.DF46D742@seanet.com> Date: Sun, 21 Mar 1999 23:10:19 -0800 From: Jim Bowman X-Mailer: Mozilla 4.04 [en] (Win95; U) MIME-Version: 1.0 To: GLOWBUGS LIST Subject: GB>UTC O-14 XFMR Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Greetings to the list. I have a little UTC transformer, I think maybe this breed was referred to as Sub-Ouncer type. It is about 7/8 diameter and about 1-1/4 high, with 4 solder terminals marked 1,2,3,and 4. It is marked UTC O-14. I think it may be something like 200 ohms to 500k. Can someone confirm this? Any other specs? I think it may be a candidate for a carbon mic input transformer. Thanx, Jim W7HPK From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 22 10:07:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id KAA32573 for ; Mon, 22 Mar 1999 10:07:10 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id JAA28132 for ; Mon, 22 Mar 1999 09:16:32 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA17851 for glowbugs-outgoing; Mon, 22 Mar 1999 06:00:46 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from stput.stp.guidant.com (stput.guidant.com [132.189.76.30]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id GAA17846 for ; Mon, 22 Mar 1999 06:00:41 -0800 (PST) Received: from mails.imed.com ([189.25.52.162]) by stput.stp.guidant.com (8.9.1/8.9.1) with SMTP id IAA23654; Mon, 22 Mar 1999 08:04:04 -0600 (CST) Received: from ccMail by mails.imed.com (IMA Internet Exchange 2.1 Enterprise) id 001785FA; Mon, 22 Mar 99 07:59:30 -0600 Mime-Version: 1.0 Date: Mon, 22 Mar 1999 07:59:01 -0600 Message-ID: <001785FA.@mails.imed.com> From: mack@mails.imed.com (Ray Mack) Subject: Re: GB> cathode followers at 80 m To: glowbugs@piobaire.mines.uidaho.edu, michael l dormann Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO My guess would be that it is an R-C rolloff problem. This is the same problem you have with R-C coupling in the plate. The solution is the same for the cathode as it is for the plate: use a choke. I would try putting a 1 mH choke in series with the cathode resistor and see what happens. Ray Mack WD5IFS ______________________________ Reply Separator _________________________________ Subject: GB> cathode followers at 80 m Author: michael l dormann at mails Date: 3/20/99 12:24 AM wroking on an arc5 mod, 6j5 osc, 6j5 (or 6n7) cath follower and 2e26 pa. a 5 watt job out of a much butchered (not by me) arc5. my problem: the cath follower works ut to about 1.3 Mhz, but not higher. changed tubes, resistor values, but seems the circuit is frequency dependent. it it time to boot strap? please some suggestions thnak you 73 mike dormann w7dra@juno.com ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 22 21:00:42 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id VAA00222 for ; Mon, 22 Mar 1999 21:00:42 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id UAA24622 for ; Mon, 22 Mar 1999 20:10:11 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA03749 for glowbugs-outgoing; Mon, 22 Mar 1999 16:31:40 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from nyct.net (bsd4.nyct.net [204.141.86.6]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA03744 for ; Mon, 22 Mar 1999 16:31:34 -0800 (PST) Received: from ppp68.nyct.net (ppp68.nyct.net [207.198.184.68]) by nyct.net (8.8.8/8.8.7) with SMTP id TAA12825 for ; Mon, 22 Mar 1999 19:31:11 -0500 (EST) (envelope-from artdeco@nyct.net) Message-Id: <3.0.5.16.19990322193117.095f63ae@mail.nyct.net> X-Sender: artdeco@mail.nyct.net X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.5 (16) Date: Mon, 22 Mar 1999 19:31:17 To: glowbugs@piobaire.mines.uidaho.edu From: Carl Ratner Subject: GB> Eimac 15R tube Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi all, While antique-hunting this weekend I came upon an Eimac 15R tube in its original box, apparently never used. Strange-looking little tube! If anyone wants it, please e-mail me off-list. It's marked $12, and I can probably buy it for $10. Could go back and pick it up next week. 73 de Carl Ratner Restorer of vintage radios and aspiring glowbugger From endo@micron.net Mon Mar 22 23:13:45 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA00335 for ; Mon, 22 Mar 1999 23:13:44 -0500 Received: from mailmx.micron.net (mailmx.micron.net [198.60.253.39]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA22790 for ; Mon, 22 Mar 1999 22:23:14 -0500 (EST) Received: from micron.net (cboi14p13.boi.micron.net [204.229.102.14]) by mailmx.micron.net (8.8.5/8.8.5) with ESMTP id UAA09403 for ; Mon, 22 Mar 1999 20:23:11 -0700 (MST) Message-ID: <36F70913.88A3702C@micron.net> Date: Mon, 22 Mar 1999 20:22:59 -0700 From: Mike Flume X-Mailer: Mozilla 4.04 [en]C-NECCK (Win95; I) MIME-Version: 1.0 To: jski@WPI.EDU Subject: radio recievers and transmitters Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Status: RO I am building a model plane and I want to have some clips on the end of the wings so i can drop stuff from them. I already have the clips and the motors but know I need a trans and recieve to start the motors. An ideas. I don't want to spend a fortune but I would like to be able to do it. Thanks for the help. Matt Pasley Mtbiker@micron.net From jimbowman@seanet.com Tue Mar 23 03:10:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id DAA00451 for ; Tue, 23 Mar 1999 03:10:05 -0500 Received: from mx.seanet.com (dns2.seanet.com [199.181.164.2]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id CAA31606 for ; Tue, 23 Mar 1999 02:19:34 -0500 (EST) Received: from seanet.com (h12.dialup.seanet.com [207.12.129.108]) by mx.seanet.com (8.8.8/Seanet-8.7.3) with ESMTP id XAA13488 for ; Mon, 22 Mar 1999 23:19:31 -0800 (PST) Message-ID: <36F7436E.6BB3A78B@seanet.com> Date: Mon, 22 Mar 1999 23:31:58 -0800 From: Jim Bowman X-Mailer: Mozilla 4.04 [en] (Win95; U) MIME-Version: 1.0 To: "Joseph M. Krzeszewski" Subject: Re: GB> More pencil tubes References: <199903011414.JAA29286@wpi.WPI.EDU> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Status: RO Hi Joe. I didn't get shinola back re. my pencil tubes. Hope you have better luck! 73, Jim W7HPK Joseph M. Krzeszewski wrote: > So long as someone is digging through the manuals looking for the specs on > pencil tubes, I have a few (30-50) of type CK5744. Sounds the same as the > other types mentioned here, but mine only has 5 leads. Triode? Low voltage > B+? I sure hope so. I would like to make a tube type transmiter reciever > pair built on/in/around a pair of Altoids tins. That should show up those > sand state guys... > > -- Joe > > -- > Joseph M. Krzeszewski Mechanical Engineering and stuff > N5LHF Jack of All Trades, Master of None... Yet > jski@wpi.edu -= CCC Shop Student Hardware Specialist =- From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 23 13:14:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA00775 for ; Tue, 23 Mar 1999 13:14:01 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA16142 for ; Tue, 23 Mar 1999 12:23:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA12148 for glowbugs-outgoing; Tue, 23 Mar 1999 08:45:44 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from littontech.com (mail.littontech.com [209.77.76.11]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA12143 for ; Tue, 23 Mar 1999 08:45:38 -0800 (PST) Received: from littonengr.com (207.215.90.145) by littontech.com with ESMTP (Eudora Internet Mail Server 2.2); Tue, 23 Mar 1999 08:46:16 -0800 Message-ID: <36F7C721.3EABC219@littonengr.com> Date: Tue, 23 Mar 1999 08:53:55 -0800 From: Conrad Warren Reply-To: cwarren@littonengr.com Organization: Litton Engineering X-Mailer: Mozilla 4.5 (Macintosh; I; PPC) X-Accept-Language: en MIME-Version: 1.0 To: Jim Bowman , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB>UTC O-14 XFMR References: <36F5ECDA.DF46D742@seanet.com> Content-Type: text/plain; charset=us-ascii; x-mac-type="54455854"; x-mac-creator="4D4F5353" Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Jim, If you have any older ARRl hand books circa 1948-1957, look in the Index of Manufacturers (in the back section of the handbook) for UTC Transformers. They frequently included a listing of transformers which they manufactured that were of use to hams. These transformers are listed by their UTC part number, such as the one you have. Also their ads included illustrations which enabled a person to identify the style of the transformer by comparison with their illustrations. There is another way to figure out what the transformer is, and that is toplace a small ac voltage (6.3) volts in series with a current limiting resistor of say 1K* across pins 1&2, which are normally the input pins and read the voltage that appears across pins 3&4 on a high impedance voplt meter. Then, just for drill, reverse the procedure, placing the voltage across pins 3&4 and read the voltage which appears across pins 1&2. This voltage will transform in accordance to standard transformer equations. It is not so easy to measure the impedance of a transformer unless you know either the source or sink impedance which the transformer is transforming one into the other. There is another option that you can try. I have had good luck substituting transformers, designed for other types of service, into applications for which they wre not specifically designed. A good example is the use of a 115 volt primary to 6.3 volt secondary filament transformer backwards as an audio output speaker matching transformer for such tubes as the 6V6 and the 6AG5 tubes. In the present case a 6.3 volt filament transformer might just give y ou enough audio drive with the 6.3 volt winding driven by the carbon mike inseries with a small 1.5 volt battery - especially if it is driving the grid of some tube like a 6SJ7 or a high mu triode, like a 6AT6. But, unquestionably, the best option is to use a circuit the eliminates the need for the audio transformer. One appears in any of the earlier ARRL handbooks. In this circuit, usually using a triode, the carbon mike is placed in the cathode circuit of the tube, the grid is grounded and a plate load resistor of around 100k* is used in the plate circuit, with the audio coupled out of the plate circuit via a 0.01 ufd disc capacitor between the plate of the mike driver stage and the grid of the next stage. In this circuit, the current required for the carbon mike is the cathode current generated by the triode tube. The variations in the carbon mike vary this cathode current, causing the voltage drop across the carbon mike ( which acts as the cathode bias resistor of the triode), causing the effective bias across the grid to change, with respect to ground - the refelection of the change in cathode voltage with respect to ground, under varying carbon mike resistance. I have used this circuit several times with great success and can highly recommend it. Usually, I use a 6SL7 or a 12AXZ7, but a 12AU7 works just about as well. (in fact, in contrast to what books might suggest, I haven't found any task normally performed by a 12AX7 that a 12AU7 can't do just as well - and often times better! One thing to remember in using a carbon mike for the first time after it has sat around forever, is to rap it against something hard a few times, in order to unpack the carbon granules which have a tendency to cohere to each other. Often times a mike which sounds poorly can be made to improve much better by simply tapping it sharply with a hard object (not so hard that you damage its case, though). There have been any munber of carbon mikes developed for the military which hams have traditionaly liked to use, the T-17 being one of the most popular. But, the very best mike I have ever found comes exclusively out of ordinary MA Bell telepohone handsets. Simply unscrews the handset and remove the transmitter. This transmitter is a standard size and fit a lot of other 'carbon' mike enclosures with very little alteration - if any. This source of carbon mike transformer is predicatably good, very reliable and has the best voice qualities of any carbon mike that I have ever tried. A nice way to get a cute little mike enclosure for the MA Bell mike is to simply cut off the handset near the receiver end. The remaining handset can be mounted on a small plate of metal as a stand mike, which is both stylish and practical, although somewhat funky looking. Another alternative is to use the handset in its entirely, hooking the receiver to your receiver. But, since most hams prefer dual headphones, you can use two handsets - one in each hand, with both receivers hooked to the receiver and one of each mike hooked to a different transmitter - one set on lower side band and one set on upper side band, so that you can transmitter your voice in stereo to the receiving end, which sets up two receivers - one on upper sideband and one on lower sideband, two speaker set some distance apart on the floor. Then, as the XYL paces the floor behind you and kibitz from the background as you speak, her voice will be rendered in perfect stereo to the listener on the other end who will also know that she is pacing the floor and kibitzing from the background. Intriguing, huh? The two fisted telephone operation also looks very impressive to non ham visitors to your shack, especially if the telephones are different colors, like green and yellow or yellow and red. A good practice is to normally use the yellow phone and only pick up the red phone when something really earth shaking is going on, like earth quakes, hurricanes and nuclear attacks. When speaking into this phone make sure that you use lots of military anachronyms and the phontic alphabet and words like: "Niner," "Roger," "Wilco," "Say again, Over!" that sort of thing. Any military apparel that you can wear at times like this adds a powerful new dimension to the overall effect and smoking a cigar adds even more to the effect, along with a stubbled beard, a head band, combat boots and a solid brass zippo lighter. You can even throw a few sandbags on the roof and stack some GI gas cans by the door to the shack. Use a handle like "Bunker Bob," or something like that! Enjoy your UTC #0-14 transformer, Jim! 73's, Conrad Warren W7WLM Jim Bowman wrote: > Greetings to the list. > > I have a little UTC transformer, I think maybe this breed was referred > to as Sub-Ouncer type. It is about 7/8 diameter and about 1-1/4 high, > with 4 solder terminals marked 1,2,3,and 4. It is marked UTC O-14. I > think it may be something like 200 ohms to 500k. Can someone confirm > this? Any other specs? I think it may be a candidate for a carbon mic > input transformer. > > Thanx, > > Jim W7HPK From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 23 22:23:37 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA01136 for ; Tue, 23 Mar 1999 22:23:35 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA01519 for ; Tue, 23 Mar 1999 21:33:23 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA18186 for glowbugs-outgoing; Tue, 23 Mar 1999 18:12:31 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc05.worldnet.att.net (mtiwmhc05.worldnet.att.net [204.127.131.40]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA18181 for ; Tue, 23 Mar 1999 18:12:24 -0800 (PST) Received: from LOCALNAME ([12.65.147.14]) by mtiwmhc05.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990324021113.GYOF943@LOCALNAME>; Wed, 24 Mar 1999 02:11:13 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, cw@qth.net, From: Sandy W5TVW Subject: GB> FS: More Mackay Gear Message-Id: <19990324021113.GYOF943@LOCALNAME> Date: Wed, 24 Mar 1999 02:11:13 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO More true "boat anchors". The following has been in storage for the past few years and appears in good shape. It is "as shipped" from the factory in Raleigh, NC but was never used. Mackay Model 2012 MF transmitter. 400-515 Khz. rated 500 watts out. Uses a pair of 813's in final stage. RF deck only, no power supply... Mackay Model 2021 HF transmitter. CW, 2-24 Mhz. Rated 500 watts output. Uses a pair of 813's in final stage. Crystal control or external exciter unit. Will match a wide range of output impedance antennas. RF deck only, no power supply... Mackay model MR-337-32A synthesized exciter unit. Can be used alone or with 2021 transmitter above. Also have a manual antenna switch, autoalarm receiver, emergency transmitter. Interested parties please e-mail me direct. Owner (not me, I just know the gear and am "brokering" it!) is accepting offers on the above. I have some digital pictures of the geara for those interested in looking at it. 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Tue Mar 23 23:36:51 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA01189 for ; Tue, 23 Mar 1999 23:36:41 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA16789 for ; Tue, 23 Mar 1999 22:46:20 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA18997 for glowbugs-outgoing; Tue, 23 Mar 1999 19:20:00 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from postal.indy.net (postal.indy.net [199.3.65.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA18992 for ; Tue, 23 Mar 1999 19:19:56 -0800 (PST) Received: from indy3.indy.net (root@indy3.indy.net [199.3.65.14]) by postal.indy.net (8.9.2/8.9.2) with ESMTP id WAA20248; Tue, 23 Mar 1999 22:19:45 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy3.indy.net (8.8.7/8.8.7) with SMTP id WAA03379; Tue, 23 Mar 1999 22:20:15 -0500 (EST) Date: Tue, 23 Mar 1999 22:20:13 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy3 To: Conrad Warren cc: Jim Bowman , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB>UTC O-14 XFMR In-Reply-To: <36F7C721.3EABC219@littonengr.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! Conrad is pulling some legs here, and none more than mine...but y'know, telco T-1 mic elements *are* pretty good, and you can buy the "bulldog" transmitter caps, backs, uprights, etc. from PhoneCo and prolly some other joints.... But--ahem--about that O-14. UTC says it's a 50:1 mic or line to 1 grid. Primary is 200R, secondary half a meg, and it does *not* have the "DC in pri" note, so it's probably not for a carbon mic. Response is flat from 150 to 4000 cps. Ratio's a bit high for the normal voltage swing of a carbon mic, too, especially the single-button version. No pinout but a minute's work with an ohmmeter will tell the diffrence for a 50:1 transformer--DC R ratio will be a quarter of that or less but it's still a lot! UTC's S-5 and S-6 are the only carbon mic to grid transformers I see--ratio is 16:1. S (Special) series was built for amateur and popular-priced PA service, per UTC. The LS (Linear Standard) and HA (Hipermalloy) lines are a bit too snooty for carbon mics, I guess, but you'd'a thunk the Ouncers would dance with 'em. 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 24 02:46:54 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA01350 for ; Wed, 24 Mar 1999 02:46:53 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA17674 for ; Wed, 24 Mar 1999 01:56:37 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA22248 for glowbugs-outgoing; Tue, 23 Mar 1999 22:36:19 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mx.seanet.com (dns2.seanet.com [199.181.164.2]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA22243 for ; Tue, 23 Mar 1999 22:36:14 -0800 (PST) Received: from seanet.com (h30.dialup.seanet.com [207.12.129.126]) by mx.seanet.com (8.8.8/Seanet-8.7.3) with ESMTP id WAA05624; Tue, 23 Mar 1999 22:35:23 -0800 (PST) Message-ID: <36F88A97.E3C41215@seanet.com> Date: Tue, 23 Mar 1999 22:47:51 -0800 From: Jim Bowman X-Mailer: Mozilla 4.04 [en] (Win95; U) MIME-Version: 1.0 To: "Roberta J. Barmore" CC: Conrad Warren , glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB>UTC O-14 XFMR References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Howdy Bobbi, Conrad, and all who responded to my post about the little O-14. Yeah, old Conrad was getting a little heavy there, but I did go and check to see where I had hung up my camo! The transformer was among "treasures" I picked up at the recent Puyallup, Wa. fleamarket here. Biggest purchase for me was another pair of 211 tubes and nice Johnson sockets for them. Came home with lots of other stuff as well. (So much stuff, so little room!) Actually, I do have a couple of "real" carbon mic transformers around here somewhere. I have also used the cathode input circuit you mention, Conrad, and it works fine. My favorite collection of glowbug little rigs is in my old CQ Mobile Handbook, 1956, and the ARRL Mobile Manual, 1960. They have a number of little rigs using both styles. I have a bunch, well several, of the good old Ma Bell F-1 tele mic buttons, and some of the smaller versions of the same thing (maybe thats the T-1). I agree, they are about as good as any carbon mic. I really liked the sound of them in the '50's when we were running mobile on 75 meters down in Houston - that was the equivalent of two meters today! Lots of little 3 watt rigs using the car BC receiver for B+ and using a converter on the car radio. I used to use a one transistor crystal controlled converter on the car radio with good success. Yep, when I was a 14 year old twerp, I used one of the old mil T-17 mics for some time. I still have, from way back then, one of the cast metal "10-4" mics (I think the Hwy Patrol used them) that take a F-1 mic button. One of these days I will scrounge a modulation transformer and build a modulator for a glowbug rig. There are some guys on 160 meter AM around here. Bobbi, thanx for the article on the 3-tube rx you sent. I sent you a few things in return. Sorry to take so long. 73 to all, Jim W7HPK Roberta J. Barmore wrote: > Hi! > > Conrad is pulling some legs here, and none more than mine...but y'know, > telco T-1 mic elements *are* pretty good, and you can buy the "bulldog" > transmitter caps, backs, uprights, etc. from PhoneCo and prolly some other > joints.... > But--ahem--about that O-14. UTC says it's a 50:1 mic or line to 1 > grid. Primary is 200R, secondary half a meg, and it does *not* have the > "DC in pri" note, so it's probably not for a carbon mic. Response is flat > from 150 to 4000 cps. Ratio's a bit high for the normal voltage swing of > a carbon mic, too, especially the single-button version. No pinout but a > minute's work with an ohmmeter will tell the diffrence for a 50:1 > transformer--DC R ratio will be a quarter of that or less but it's still a > lot! > UTC's S-5 and S-6 are the only carbon mic to grid transformers I > see--ratio is 16:1. S (Special) series was built for amateur and > popular-priced PA service, per UTC. The LS (Linear Standard) and HA > (Hipermalloy) lines are a bit too snooty for carbon mics, I guess, but > you'd'a thunk the Ouncers would dance with 'em. > > 73, > --Bobbi > > KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore > FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA > Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 24 16:44:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA01776 for ; Wed, 24 Mar 1999 16:44:00 -0500 Received: from piobaire.mines.uidaho.edu (piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA01195 for ; Wed, 24 Mar 1999 15:53:47 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA05788 for glowbugs-outgoing; Wed, 24 Mar 1999 12:15:19 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from sttlpop1.sttl.uswest.net (sttlpop1.sttl.uswest.net [206.81.192.1]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA05769 for ; Wed, 24 Mar 1999 12:15:11 -0800 (PST) Received: (qmail 23931 invoked by alias); 24 Mar 1999 20:14:43 -0000 Delivered-To: fixup-glowbugs@piobaire.mines.uidaho.edu@fixme Received: (qmail 23888 invoked by uid 0); 24 Mar 1999 20:14:42 -0000 Received: from mdsl208.sttl.uswest.net (HELO dslserver) (209.181.94.209) by sttlpop1.sttl.uswest.net with SMTP; 24 Mar 1999 20:14:42 -0000 Message-ID: <002301be7632$accb4e80$d15eb5d1@sttl.uswest.net> From: "Dave" To: , , , References: <19990324021113.GYOF943@LOCALNAME> Subject: GB> FS: Couple of new-in-original-box microphones... Date: Wed, 24 Mar 1999 12:12:41 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2014.211 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2014.211 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hello all, I have 2 microphones, new in the box, that I have no use for. I had a 'change of household' in the last 6 months that moved me out of my house, and I don't really have my shack anymore. So I now have for sale: 1. Astatic 877-L Desktop dynamic with locking talk bar. Hi-z, Lo-z - tailored for radio and communication applications. I have a cut sheet with all the spec's and picture of the mic that I can fax. This is brand new in the original box and never used. Does not have a connector. 7 feet of cable. $105 shipped to any US destination. This was $139 new just last fall. Never even opened the box it came in. 2. Astatic 611-L Handheld mobile mic. Lo-z only. The usual PTT mobile mic. I have a spec sheet on this one as well. Also brand new in the original box. $60 shipped. This was $69 last fall, and has never been opened. Let me know if interested. Best regards to all, Dave WB7AWK dave@boatanchors.com http://www.boatanchors.com - lotsa radio photos and such! From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 26 17:01:23 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA03707 for ; Fri, 26 Mar 1999 17:01:22 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA03943 for ; Fri, 26 Mar 1999 16:11:49 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA00975 for glowbugs-outgoing; Fri, 26 Mar 1999 12:36:32 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f248.hotmail.com [207.82.251.139]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA00970 for ; Fri, 26 Mar 1999 12:36:28 -0800 (PST) Received: (qmail 79918 invoked by uid 0); 26 Mar 1999 20:35:20 -0000 Message-ID: <19990326203520.79917.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Fri, 26 Mar 1999 12:35:20 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Recommended Site Date: Fri, 26 Mar 1999 12:35:20 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Y'all should check out the site below. This is one of my favorite homebrew sites on the web and has quite a few glowbuggie items. This fellow has a good imagination. http://www.intio.or.jp/jf10zl/ Brad Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 26 17:03:29 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id RAA03714 for ; Fri, 26 Mar 1999 17:03:27 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id QAA04693 for ; Fri, 26 Mar 1999 16:14:00 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA01019 for glowbugs-outgoing; Fri, 26 Mar 1999 12:40:43 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc04.worldnet.att.net (mtiwmhc04.worldnet.att.net [204.127.131.39]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id MAA01014 for ; Fri, 26 Mar 1999 12:40:39 -0800 (PST) Received: from LOCALNAME ([12.65.132.62]) by mtiwmhc04.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990326203944.GZIL9603@LOCALNAME>; Fri, 26 Mar 1999 20:39:44 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, From: Sandy W5TVW Subject: GB> WTD: 874 & 876 Spares Message-Id: <19990326203944.GZIL9603@LOCALNAME> Date: Fri, 26 Mar 1999 20:39:44 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Looking for known good used or NOS 874 regulator tube and one or two 876 ballast tubes. These are the ones used with the old RAK/RAL power supplies. 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 26 18:12:11 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA03776 for ; Fri, 26 Mar 1999 18:12:11 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA21538 for ; Fri, 26 Mar 1999 17:22:47 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id NAA01895 for glowbugs-outgoing; Fri, 26 Mar 1999 13:47:17 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from x16.boston.juno.com (x16.boston.juno.com [205.231.101.28]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id NAA01890 for ; Fri, 26 Mar 1999 13:47:13 -0800 (PST) Received: (from aleisen@juno.com) by x16.boston.juno.com (queuemail) id D6NU4T75; Fri, 26 Mar 1999 16:46:24 EST To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> For Sale Message-ID: <19990326.143320.7007.2.aleisen@juno.com> X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 0-8,10-11,13,15,17-21,23,25,27-29,31,33,35 From: ALLAN V EISENHAUR Date: Fri, 26 Mar 1999 16:46:24 EST Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO I For Sale the following items, shipping extra. Thanks & 73's AL N1PIC Western Electric/Hickok KS15750 L1 tube tester manual + BSP’s Excellent Photo Copy's all for $20 ARRL The Radio Operators Manual 1966 $5 ARRL SSB for the Radio Amateur 1954 $12 ARRL SSB for the Radio Amateur 1965 $12 Cowan Publ The New Mobile Handbook By William J Orr W6SAI 1956 $15 Weston #506 2 1/2” panel meter 0-1KVDC 1m ext res. Weston #506 2 1/2” panel meter 0-2. 5KVDC 50K ext res. Weston #506 2 1/2” panel meter 0-2. 5KVDC 50k ext res. Meters $15 ea Hallicrafters S85 OP/Serv Man Photo copy $6 Gonset GR212 reciever Manual Photo Copy $5 MILLEN 90902/90942 Cathode Ray Oscope Service Manual 1969 COPY $6 90932 Modulation Mon Oscope Service Manual 1960 COPY $6 90651 Grid Dip Meter Service Manual 1965 COPY $10 RCA WO-79B Oscilloscope OP & Instruction Serv Man Copy $6 WV-97A Senior Voltohmyst OP & Instruction Serv Man Copy $6 WV-98C Senior Voltohmyst OP & Instruction Serv Man 1972 Copy $6 ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 26 23:00:34 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA04020 for ; Fri, 26 Mar 1999 23:00:34 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA03792 for ; Fri, 26 Mar 1999 22:11:14 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA04430 for glowbugs-outgoing; Fri, 26 Mar 1999 18:54:06 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m1.boston.juno.com (m1.boston.juno.com [205.231.100.199]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA04412 for ; Fri, 26 Mar 1999 18:54:02 -0800 (PST) Received: (from w7dra@juno.com) by m1.boston.juno.com (queuemail) id D6PENM8L; Fri, 26 Mar 1999 21:53:13 EST To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> 1929 Message-ID: <19990326.155747.3535.4.w7dra@juno.com> X-Mailer: Juno 1.49 X-Juno-Line-Breaks: 2-9 From: michael l dormann Date: Fri, 26 Mar 1999 21:53:13 EST Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO seems if i read the info correctly, the awa/er crowd has a contest requiring the use of pre 1930 equipment. where can i get schmatics of rx/tx of this vintage? thanks 73 mike w7dra@juno.com ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] From glowbugs-owner@piobaire.mines.uidaho.edu Fri Mar 26 23:14:10 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA04029 for ; Fri, 26 Mar 1999 23:14:10 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA32754 for ; Fri, 26 Mar 1999 22:24:42 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA04529 for glowbugs-outgoing; Fri, 26 Mar 1999 19:03:13 -0800 (PST) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id TAA04520; Fri, 26 Mar 1999 19:03:06 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Fri, 26 Mar 1999 19:03:05 -0800 (PST) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: michael l dormann cc: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> 1929 In-Reply-To: <19990326.155747.3535.4.w7dra@juno.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > seems if i read the info correctly, the awa/er crowd has a contest > requiring the use of pre 1930 equipment. where can i get schmatics of > rx/tx of this vintage? There are several articles in ER on rigs for that contest. In addition, you can visit my web page at http://www.mines.uidaho.edu/~keng/ and take the schematics pages. I have links near the top to two other AWA style rigs. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Sat Mar 27 12:00:01 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA04590 for ; Sat, 27 Mar 1999 12:00:00 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA25778 for ; Sat, 27 Mar 1999 11:10:48 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA12377 for glowbugs-outgoing; Sat, 27 Mar 1999 07:58:51 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id HAA12372 for ; Sat, 27 Mar 1999 07:58:48 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D6QTJVWN; Sat, 27 Mar 1999 10:57:36 EST To: glowbugs@piobaire.mines.uidaho.edu Date: Sat, 27 Mar 1999 09:53:32 -0600 Subject: GB> FMLA: Images Message-ID: <19990327.095337.-370305.2.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO "Neither of you gave any sign of it when Jerry was here," Frank told Christie, who was standing beside him as he peered into a National NC-240. "We don't advertise the relationship," the 20ish young woman said, "because a quality person would never want to trade on family influence." Frank set aside the converter board he was sizing for the National as she continued. "It was a second marriage for both of them, and Carl never knew my mom at Parvoo." "Dad was at Cutter, Maine with Continental until I was 15." "When they went to Texas for TI, I stayed in boarding school." "I finished at, well, you would call it Radcliffe, in three years and by then Dad was affirmatively actioned out of a job." "I've been in the field for WAR for 19 months." "It must have been very difficult for you, " Frank reflected. "Humankind has prospered in constant troubles and will only perish in constant peace," she answered, and before I could place that quote she said: "Anyway, Sammy can watch you until my replacement comes." My pal Frank, who plans to take back 56-60 mc with a Five Meter Liberation Army, assured her he was happy with the protection, however unsought, her organization gave him for helping with their communications chores. He again said he wanted nothing to do with the group's inner workings, but that he was satisfied with Christie and the situation as it existed. She plainly was not, but she hugged him and left up the stairway from our basement workshop. It was Spring, and with it came one Preston Anderson, 20- year-old son of Frank's pal Carl Anderson and Carl's college sweetheart Jodi Preston. He was back from the Army and waiting with Frank until he reported to Annapolis. Press and Christie had a budding romance complicated by his learning she was the daughter of Jerry Bishop, a general in the WAR group and former friend of Carl's. The elders had not spoken for decades when Frank tricked them into a meeting. "Images are everything," Frank said. How true, I thought, as he continued: "With a 455 kc IF, you get into trouble as low as 7 mc unless you have two tuned RF stages, and by 10M it's hopeless." "The old Hallicrafters and Lafayette 6M AM rigs went to 1650 kc, but that meant you had trouble getting below 10 kc selectivity," he continued, as I readjusted my thoughts. "We need another stage here (to make the old National hear 5M) and the general rule is that the first conversion should be in the range of 10-20% of the frequency covered," he concluded. "That thou woulds't be a Capulet?" I asked. "My thoughts exactly," Frank admitted as he put down the board with the 6BS8 and 6U8. "Who would think that a chance meeting of old friends turned enemies would bring such anguish to another generation?" He settled on a 36 mc crystal for the converter as it allowed the National's 14 to 29 mc band to hear both 5 and 6 Meters. We got the '46 model peaked up for its new duty while the WARmon sat in Christie's usual place at the end of the bench. He was listening to a Satanic rock station on headphones. Frank and I missed Christie already. "This needs fixing," Frank said, which I thought was the reason all three of us were hoisting a SP-600 to the bench, but as soon as the mastodon was secured he sent the WARmon to "round them up." "Ghost Images," Frank told the lined up Press and Christie when the WARmon had retrieved them, "from the past are disrrupting my mission here." "We will succeed in recapturing 5 Meters," he continued, "only if we rise above personal discomfort." He had donned his double breasted jacket for this speech. "I did not want any bodyguards at all," he said. "I have acclimated to the ones WAR sent, but I'll take no replacements." "Similarly," he said as he stepped around a 388 case we use for a trash bin to stand in front of the attentive pair, "camaraderie with a son of an old friend cannot be allowed to divert me either." "So I want, no I demand, your personal assurances that your parents' quarrels from the past, and any differences you might have in the present, will not be allowed to affect this operation." "If you cannot right now make those assurances, it would be better for you to leave." Press seemed embarrassed, although I don't know what about, and Chrisite was a little teary, but both made the requisite promises and Frank went back to the Super Pro, waving away Christie's attempt to expand the meeting. We worked on the Hammarlund's highest band to see if it would go above the marked 54 mc and the WARmon re tuned KTAC. The promising couple went off to the Sonic, a 1950s style drive in, for a Coke. de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com FMLA XXVIX Student of Tecraft, ICM, and Six Meters' golden age, 1956-58. From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 29 11:04:48 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA06340 for ; Mon, 29 Mar 1999 11:04:48 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id KAA03414 for ; Mon, 29 Mar 1999 10:16:12 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id GAA05413 for glowbugs-outgoing; Mon, 29 Mar 1999 06:58:27 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mailcity.com (excitepost.whowhere.com [209.1.236.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id GAA05408 for ; Mon, 29 Mar 1999 06:58:24 -0800 (PST) Received: from Unknown/Local ([?.?.?.?]) by mailcity.com; Mon Mar 29 06:57:32 1999 To: glowbugs@piobaire.mines.uidaho.edu Date: Mon, 29 Mar 1999 06:57:32 -0800 From: "andy eliason" Message-ID: Mime-Version: 1.0 X-Sent-Mail: off X-Mailer: MailCity Service Subject: GB> regennie using torride X-Sender-Ip: 38.27.54.132 Organization: MailCity (http://www.mailcity.lycos.com:80) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO A few weeks back someone was asking if anyone had seen a torride or ferrite core coil used in a genny type rcvr. Take a look at the 12AU6 12V project listed on the Japanese pages recomended by Brad Hernlam under "recomended pages". My personal experiance with slug tuned coils in oscillators is that they have always been more stable, but don't permit tuning over quite as broad a range. Andy Eliason KA9DOL andye8@mailcity.com Get your FREE Email at http://mailcity.lycos.com Get your PERSONALIZED START PAGE at http://personal.lycos.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 29 15:03:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA06464 for ; Mon, 29 Mar 1999 15:03:04 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA05411 for ; Mon, 29 Mar 1999 14:14:24 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id KAA07516 for glowbugs-outgoing; Mon, 29 Mar 1999 10:30:51 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f67.hotmail.com [207.82.251.207]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id KAA07511 for ; Mon, 29 Mar 1999 10:30:43 -0800 (PST) Received: (qmail 23079 invoked by uid 0); 29 Mar 1999 18:29:42 -0000 Message-ID: <19990329182942.23078.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Mon, 29 Mar 1999 10:29:40 PST X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Some Experiments Date: Mon, 29 Mar 1999 10:29:40 PST Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO This weekend I took some measurements on a 1L4 circuit to get some design numbers for a variable gain RF stage. Below are the numbers in case you find them useful. The setup was with 5 9v batteries as B supply. A 4.7 K resistor was inserted between the plate and B supply to measure gain. G1 bias was taken, through a 1M resistor, from the tap of a 10K pot across a separate 9V bias battery. A 990 Hz 0.1 V P-P signal was fed to G1 through a 0.1 uF cap (this is not RF but I simply wanted some numbers for the control range of the gain versus G1 bias). The first table of numbers were for the case where G2 potential was set by a 100K resistor to B supply, bypassed to ground through a 0.1 uF cap: Vg1 Vp(AC) Vg2 Vp(DC) ---------------------------- 0.00 0.22 27.1 42.5 -0.49 0.20 29.5 42.9 -0.74 0.19 31.0 43.1 -0.99 0.175 32.5 43.4 -1.34 0.15 34.5 43.7 -1.54 0.14 35.6 43.8 -1.86 0.115 37.2 44.1 -2.19 0.09 38.7 44.3 -2.54 0.065 40.2 44.5 -2.93 0.04 41.3 44.6 -3.27 0.025 42.2 44.7 -3.69 0.01 42.9 44.8 The following table was as above except that a 220K resistor was added from G2 to ground. Vg1 Vp(AC) Vg2 Vp(DC) ---------------------------- 0.00 0.19 22.8 43.3 -0.31 0.175 23.7 43.5 -0.65 0.145 25.2 43.8 -1.08 0.105 26.9 44.2 -1.39 0.08 28.0 44.4 -1.68 0.05 28.8 44.6 -2.02 0.03 29.5 44.7 -2.44 0.01 30.1 44.8 I am intending on building a three tube regen receiver roughly based on the National SW-3. I am using miniature filament tubes (1L4s and either 3Q4 or 3A4). The purpose in this experiment was to learn the range of G1 bias for the 1L4 tube so that I can determine how much cathode resistance I will need between the F- (ground) of the tubes and the B- point. The RF control will be a relatively large (perhaps 100K) pot in parallel with the cathode resistor. Holding the G2 potential on the 1L4 at about 25 V requires about 2.5 volts for full gain range. The second table of data shows that a stiffer bias circuit for G2 compresses the G1 bias gain control range compared with a simple resistor to B supply. This is because the G2 current drops off as the G1 bias nears pinch-off. On another matter, the SW-3 uses ganged variable caps for the RF and regen stages but the caps are electrically isolated (no shared rotor). I don't have any drives to gang two variable caps and so have been planning a method to use an ordinary ganged cap with shared rotor connection. This creates a problem for the filament tube circuit because the RF stage needs to have adjustable G1 bias while the regen stage is held fixed at 0 bias (through grid leak). I am thinking that I could use one section for the regen stage with the rotor grounded to F- and insert a relatively large (1000 pF or larger) cap between the rotor and the coil in the RF stage to remove the ground DC bias from that stage. The cap would be an insignificant part of the capacitance in the tank so would not affect the circuit. The bias would be applied to the "bottom" of the coil. Any thought? Brad Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Mar 29 19:38:19 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA06745 for ; Mon, 29 Mar 1999 19:38:18 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA25420 for ; Mon, 29 Mar 1999 18:49:41 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA10364 for glowbugs-outgoing; Mon, 29 Mar 1999 15:04:39 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc05.worldnet.att.net (mtiwmhc05.worldnet.att.net [204.127.131.40]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id PAA10359 for ; Mon, 29 Mar 1999 15:04:31 -0800 (PST) Received: from LOCALNAME ([12.73.238.59]) by mtiwmhc05.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990329230320.YGH17984@LOCALNAME>; Mon, 29 Mar 1999 23:03:20 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: "Brad Hernlem" , From: Sandy W5TVW Subject: Re: GB> Some Experiments Message-Id: <19990329230320.YGH17984@LOCALNAME> Date: Mon, 29 Mar 1999 23:03:20 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO At 10:29 AM 3/29/99 PST, you wrote: >I am intending on building a three tube regen receiver >roughly based on the National SW-3. I am using miniature >filament tubes (1L4s and either 3Q4 or 3A4). > >On another matter, the SW-3 uses ganged variable caps >for the RF and regen stages but the caps are electrically >isolated (no shared rotor). I don't have any drives to >gang two variable caps and so have been planning a method >to use an ordinary ganged cap with shared rotor connection. >This creates a problem for the filament tube circuit >because the RF stage needs to have adjustable G1 bias >while the regen stage is held fixed at 0 bias (through >grid leak). I am thinking that I could use one section >for the regen stage with the rotor grounded to F- and >insert a relatively large (1000 pF or larger) cap between >the rotor and the coil in the RF stage to remove >the ground DC bias from that stage. The cap would be >an insignificant part of the capacitance in the tank >so would not affect the circuit. The bias would be applied >to the "bottom" of the coil. > >Any thought? > >Brad Personally, I'd use two seperate capacitors, each in it's own seperate shielded compartment with a phenolic or fibreglass insulated shaft between them. If you are building the set mainly for ham band use, I would not even worry with ganging the capacitor shafts, and build the receiver as a "two dial" set. (In old TRF terminology) Isolating the detector from the RF stage is and has been a major problem. Stray coupling and unintended ground paths causes a lot of interaction bewteen the RF stage and the detector. I have experienced this, and in truth, have never really been able (so far) to build a set with an RF stage that worked in a sane or predictable manner. Jim Millen had the same problem while he was designing the SW-3! Very small deviations in mechanical/ physical arrangement reek havoc with the performance of the receiver. Although the SW-3 is/was a successful design, there was a lot of "Empirical engineering" that went into it. Regens can try your patience to the utmost if you seek a really good working receiver, that they are capable of producing. As I have said often enough, no circuit will potentially give you as much grief as a regenerative receiver, even though it is a very simple circuit! Be prepared to do a lot of piddling with your design! 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Wed Mar 31 22:39:08 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id WAA08741 for ; Wed, 31 Mar 1999 22:39:08 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id VAA20909 for ; Wed, 31 Mar 1999 21:51:14 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id SAA07648 for glowbugs-outgoing; Wed, 31 Mar 1999 18:26:53 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from postal.indy.net (postal.indy.net [199.3.65.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id SAA07640 for ; Wed, 31 Mar 1999 18:26:43 -0800 (PST) Received: from indy1.indy.net (root@indy1.indy.net [199.3.65.5]) by postal.indy.net (8.9.2/8.9.2) with ESMTP id VAB15517 for ; Wed, 31 Mar 1999 21:26:36 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy1.indy.net (8.8.7/8.8.7) with SMTP id VAA05529 for ; Wed, 31 Mar 1999 21:27:03 -0500 (EST) Date: Wed, 31 Mar 1999 21:27:02 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy1 To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Faking paper condensers... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi! Came up with something fun the other day. In the process of learning to use a new word processor (Word for Windows), I made up paper labels to put over axial mylar film condensers to make 'em look like the old ones. Happened to have a Sprague "600 Line" paper one in really nice shape, and borrowed their color scheme and general layout for the label. Company name is "FAUX" (Faux Engineering and Supply, no less). ...I'll send the Word .doc file to anyone who wants it. You need "Word Art" and a color printer to get much use from it. Shape, size, color and text can be tweaked, and I'm not sure if you have to have the fonts used to make it work or not. (Word Art is weird stuff, allowing text to be massaged in ways not usually available or needed). If enough folks are interested, I'll look into having a sheet of color copies made with a blank for the value to be typed or handwritten in. A little careful work with hot-melt glue results in a pretty good faux tubular paper condenser. It'd probably set the teeth of a serious museum-type restorer on edge but it does have that vintage look! Thanks to the folks who were after a typewriter font recently--it was having that (for the value entry, usually typed or stamped on preprinted labels in the days of yore) that led me to spend a few lunch-breaks on this. It's not of any practical use but it is fun. (And I sure did learn how to use the weird features in Word!) 73, --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Thu Apr 1 18:32:33 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id SAA09552 for ; Thu, 1 Apr 1999 18:32:32 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id RAA21668 for ; Thu, 1 Apr 1999 17:44:48 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id OAA17701 for glowbugs-outgoing; Thu, 1 Apr 1999 14:09:12 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from b11.b11.ingr.com (b11.b11.ingr.com [129.135.220.100]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id OAA17691 for ; Thu, 1 Apr 1999 14:09:01 -0800 (PST) Received: from ro.com (lilliput.ics.ingr.com) by b11.b11.ingr.com (5.65c/1.921207) id AA22340; Thu, 1 Apr 1999 16:08:36 -0600 Message-Id: <3703EE60.A34EAE76@ro.com> Date: Thu, 01 Apr 1999 16:08:32 -0600 From: Dan Kerl X-Mailer: Mozilla 4.5 [en] (WinNT; U) X-Accept-Language: en Mime-Version: 1.0 To: glowbugs@piobaire.mines.uidaho.edu Subject: Re: GB> VHF superhet debugging techniques References: <199903170005.SAA21603@sh1.ro.com> <36EFC54C.76BF29FA@ro.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Just a note to let interested list members know about my VHF debug efforts. Apologies in advance if this gets tiring. John WA6QPL made the observation that the 10K grid leak resistor was rather low in value for this application. With this in mind, I substituted a higher value carbon film (62K) for the 10K. I retained the 33 MMF mica parallel cap. With this modification, the tuner performed much better, with improved sensitivity and absence of the splatter I experienced previously. I notice a step in the noise level over a portion of the tuning range, but no other objectionable symptoms. I found some more practical information on oscillator grid biasing in an old book I have, Electronics and Tubes, Cruft Electronics Staff. While there was no direct information on selecting the correct value of resistor, they warned about making sure the time constant formed by the combination of the grid resistor and grid capacitor was "not too large", to ensure that a large negative bias that takes a long time to discharge doesn't occur. Another rule of thumb given for Hartley oscillators is that the coil tap should be selected so that the plate signal voltage is around mu times the grid signal voltage. I'm not sure that this would allow good class C operation of the triode, however. At this point, I'm going to try some higher values. I'm also going to try to locate some 7F8 curves, which might allow me to optimize the bias point for class C operation. I wish I had a high frequency scope right now, but I guess that would be cheating. -- Dan Kerl dlkerl@ro.com From glowbugs-owner@piobaire.mines.uidaho.edu Thu Apr 1 20:32:44 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id UAA09612 for ; Thu, 1 Apr 1999 20:32:43 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id TAA15788 for ; Thu, 1 Apr 1999 19:45:06 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id QAA18752 for glowbugs-outgoing; Thu, 1 Apr 1999 16:12:10 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from koto.qnet.com (koto.qnet.com [207.155.37.7]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id QAA18747 for ; Thu, 1 Apr 1999 16:11:56 -0800 (PST) Message-Id: <199904020011.QAA18747@piobaire.mines.uidaho.edu> Received: from [209.221.196.79] (56k-palm-01-16.dial.qnet.com) by koto.qnet.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-54999U700L2S100V35) with SMTP id AAA19057; Thu, 1 Apr 1999 16:11:08 -0800 Subject: Re: GB> VHF superhet debugging techniques Date: Thu, 1 Apr 99 16:15:58 -0700 x-sender: jmc@pop3.av.qnet.com x-mailer: Claris Emailer 1.1 From: JMcAulay To: "Dan Kerl" , "GlowBugs" Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On 4/1/19 at 12:23 PM, Dan Kerl wrote: >Just a note to let interested list members know about my VHF debug efforts. >Apologies in advance if this gets tiring. > >John WA6QPL made the observation that the 10K grid leak resistor was >rather low in value for this application. With this in mind, I substituted >a higher value carbon film (62K) for the 10K. I retained the 33 MMF mica >parallel cap. With this modification, the tuner performed much better, >with improved sensitivity and absence of the splatter I experienced >previously. I notice a step in the noise level over a portion of the >tuning range, but no other objectionable symptoms. > >I found some more practical information on oscillator grid biasing in >an old book I have, Electronics and Tubes, Cruft Electronics Staff. >While there was no direct information on selecting the correct value >of resistor, they warned about making sure the time constant formed by >the combination of the grid resistor and grid capacitor was "not too >large", to ensure that a large negative bias that takes a long time >to discharge doesn't occur. Another rule of thumb given for Hartley >oscillators is that the coil tap should be selected so that the >plate signal voltage is around mu times the grid signal voltage. I'm >not sure that this would allow good class C operation of the triode, >however. > >At this point, I'm going to try some higher values. I'm also going to >try to locate some 7F8 curves, which might allow me to optimize the bias >point for class C operation. I wish I had a high frequency scope right >now, but I guess that would be cheating. Two comments: One, I realy had something much higher than 62K in mind, even maybe a megohm or so. Two, Edwin Howard Armstrong did not use a high-frequency scope. *<:o) 73 John WA6QPL From glowbugs-owner@piobaire.mines.uidaho.edu Sat Apr 3 08:00:15 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id IAA10780 for ; Sat, 3 Apr 1999 08:00:14 -0500 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id HAA01994 for ; Sat, 3 Apr 1999 07:13:04 -0500 (EST) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id EAA07984 for glowbugs-outgoing; Sat, 3 Apr 1999 04:01:24 -0800 (PST) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id EAA07979 for ; Sat, 3 Apr 1999 04:01:21 -0800 (PST) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D7AER83K; Sat, 03 Apr 1999 07:00:45 EST To: Boatanchors@theporch.com, Glowbugs@piobaire.mines.uidaho.edu Date: Sat, 3 Apr 1999 05:56:04 -0600 Subject: GB> FMLA: Defiance Message-ID: <19990403.055609.-406513.0.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO "How does this look?" Christie asks as she hands me three pages of a recent QST copied in longhand.. I tell her it looks solid to me and that she is almost certain to get a 25 wpm code proficiency certificate for Artesia Bello. That makes her happy, almost, and she carefully addresses an envelope to Newington, with an SASE, before returning to the Jap auxiliary rig to search for YLs. Everyone in the WAR social club has embraced International Morse Code since they learned the government abandoned it. Christie, the chief bodyguard for my pal Frank who plans to take back the 56-60 mc with a Five Meter Liberation Army, is showing the traditional YL talent for the medium, but even he Satanic Rock obsessed WARmon, her relief, has a 15 WPM certificate. He uses the Signal Corps letters Frank advocates, but Christie calls them "mannish," and copies in script with circles for the dots on lower case letters. Generally against all things governmental, none of the WAR plan to get licenses, but they choose calls that appeal to them, check to see if they are issued on the University of Arkansas URL, and jump in on the ham bands anyway. Most of them use the name "Art" because it is easy to copy and serves as a secret ID among them. The WARmon uses various prefixes and the suffix INC ("I'm Not a Crook") on a modified CB he calls a President Nixon, but Christie usually just reads the mail on a JP-600 Frank is wrestling with in our basement workshop. Frank was deep into the SuperPro's greenish carcass when I asked him about the implications of the WAR invasion, but he said he was not worried. Five Meters, he said, was populated with bootleggers, and it was "Ham Radio's Greatest Hour." "Moreover," he said as the tweaked the dual conversion section. "Hams have traded their great unifying talent, the code, for "foreign equipment and pointless pontificating." I am thus alone in my crowded basement. Christie is copying meaningless Floridora chatter; Frank is lost in the Hammarlund, and the WARmon has raised Chicago near 27.9 to run FM tone modulated telegraphy with "The Morse Voice of Mohammed." The Cooke County chapter of FMLA modifies CB radios to FM for the Nation of Islam. Yesterday Frank's visitor Preston Anderson went with Frank's broker, Ayn Tagert-Tamez, to a computer show. In a couple of hours they came back with Ayn's daughter, Dagny, in the crowded Corvette. Dagny stayed with my daughter and we have not seen the other two since. We are not discussing that around Christie. These are rare opportunities, as I can now work on commercial equipment that has nothing to do with converting old 6M gear to 5. I sneak out my project and finally find an open IF transformer in the SX-25. A modern one will fit underneath the old shield and the mod is made in the basement's eerie silence. There is but an occasional snicker from the WARmon as he exchanges Polish jokes with the Fruit of Islam; an occasional dropped screw as Frank spelunks the Super Pro, and a sniffle or two from Christie as she listens to the Yaesu FT-400 RX Frank bought for the 6 and 2M converters. My project is a garden variety single conversion superhet but the crystal filter, freed of sixty years of dirt, helps on CW and I have hidden a TV horizontal sweep transistor, connected as a Zener, under the chassis to regulate the LO and mixer. The 80 is burned out, but two silicon diodes stand in for it and the audio is now the push pull from a "World Monitor" GE with a bad band switch. I paid $25 for the old soldier at a Fort Worth hamfest to a guy who thought all old tube rigs lacked transformers and were "too dangerous to work on." I guess he thought this little black box with the "h" on it was for snuff. I don't have a manual, but Hallicrafters made 25 years worth of rigs without a nickle's worth of difference. I just use an SX-99 diagram and improvise. The WAR folks, who I am building it for, won't be offended by the modernizations and they will love the name on the panel -- Super Defiant. de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com FMLA XXX Student of Tecraft, ICM, and Six Meters' golden age, 1956-58.  From glowbugs-owner@piobaire.mines.uidaho.edu Mon Apr 5 13:32:21 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id NAA12806 for ; Mon, 5 Apr 1999 13:32:21 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA15380 for ; Mon, 5 Apr 1999 12:45:48 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA00965 for glowbugs-outgoing; Mon, 5 Apr 1999 09:15:01 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f252.hotmail.com [207.82.251.143]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA00957 for ; Mon, 5 Apr 1999 09:14:57 -0700 (PDT) Received: (qmail 60505 invoked by uid 0); 5 Apr 1999 16:14:10 -0000 Message-ID: <19990405161410.60504.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Mon, 05 Apr 1999 09:14:09 PDT X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Regen Progess/Question on Hybrid Feedback Control Date: Mon, 05 Apr 1999 09:14:09 PDT Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO After many months of tinkering with the various stages of a proposed regen receiver I slapped together a two tube receiver last week. Line-up so far is 1L4 regen detector plus 3Q4 AF amp. Detector is Armstrong variety with feedback winding. Feedback circuit is completed with a fixed 200 pF cap from plate to ground. Feedback control is via screen grid potential. Tuning cap is a AM broadcast band variety with no reduction so the tuning is very difficult to adjust at this point (this was meant as a prototype experimental receiver so nothing fancy). I used a 90 H filter choke for coupling to the AF stage. The AF stage is a little hokey since I am using a 1:41 ratio input transformer in reverse to drive a 600 ohm headset. This gives around 240K impedance (according to measurements, not the formula) to the 3Q4 plate which is dreadfully high but it was the arrangement which gave me the best results (power gain, mostly) with what I had on hand. With this transformer the 3Q4 is really behaving more like a voltage amp than a power amp so I cut back the potential on the screen using a 100K series resistor to B+ to reduce the DC current of the plate. B+ was 45 volts from five 9 V batteries. In operation, the receiver drew 1.2 mA from the B supply. Was able to hear Switzerland but without a bandspread tuning control or reduction drive the receiver is too hard to operate as is. The regen control was smooth enough but I did not like the scratchy effect using a potentiometer for this purpose. Has anyone ever tried a "hybrid" feedback control? i.e. a pot for coarse feedback control and a small variable cap in parallel to a large fixed feedback cap? That would give the advantage of fine control and noiseless adjustment while the pot could serve for coarse adjustment on the different bands. BTW, no antenna was attached. Receiver was simply grounded. Brad Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Apr 5 15:37:01 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA12903 for ; Mon, 5 Apr 1999 15:37:00 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id OAA21141 for ; Mon, 5 Apr 1999 14:50:26 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA02261 for glowbugs-outgoing; Mon, 5 Apr 1999 11:14:19 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from www.durham.net (root@WWW.Durham.Net [198.73.212.119]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id LAA02255 for ; Mon, 5 Apr 1999 11:14:10 -0700 (PDT) Received: from Docusystems.durham.net (tserver3-6.durham.net [198.73.213.134]) by www.durham.net (8.8.8/8.8.7) with ESMTP id OAA04678; Mon, 5 Apr 1999 14:13:43 -0400 (EDT) Message-Id: <199904051813.OAA04678@www.durham.net> From: "Edward Swynar VE3 CUI" To: "Brad Hernlem" , Subject: Re: GB> Regen Progess/Question on Hybrid Feedback Control Date: Mon, 5 Apr 1999 13:12:45 -0400 X-MSMail-Priority: Normal X-Priority: 3 X-Mailer: Microsoft Internet Mail 4.70.1161 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Brad... That "hybrid" method of regeneration was, indeed, espoused by the League in the 2nd edition of "Hints & Kinks"... ~73~ Eddy VE3CUI - VE3XZ ---------- > From: Brad Hernlem > To: glowbugs@piobaire.mines.uidaho.edu > Subject: GB> Regen Progess/Question on Hybrid Feedback Control > Date: April 5, 1999 12:14 PM > > After many months of tinkering with the various stages of a proposed > regen receiver I slapped together a two tube receiver last week. Line-up > so far is 1L4 regen detector plus 3Q4 AF amp. Detector is Armstrong > variety with feedback winding. Feedback circuit is completed with a > fixed 200 pF cap from plate to ground. Feedback control is via screen > grid potential. Tuning cap is a AM broadcast band variety with no > reduction so the tuning is very difficult to adjust at this point (this > was meant as a prototype experimental receiver so nothing fancy). I used > a 90 H filter choke for coupling to the AF stage. The AF stage is a > little hokey since I am using a 1:41 ratio input transformer in reverse > to drive a 600 ohm headset. This gives around 240K impedance (according > to measurements, not the formula) to the 3Q4 plate which is dreadfully > high but it was the arrangement which gave me the best results (power > gain, mostly) with what I had on hand. With this transformer the 3Q4 is > really behaving more like a voltage amp than a power amp so I cut back > the potential on the screen using a 100K series resistor to B+ to reduce > the DC current of the plate. > B+ was 45 volts from five 9 V batteries. In operation, the receiver drew > 1.2 mA from the B supply. > > Was able to hear Switzerland but without a bandspread tuning control or > reduction drive the receiver is too hard to operate as is. The regen > control was smooth enough but I did not like the scratchy effect using a > potentiometer for this purpose. Has anyone ever tried a "hybrid" > feedback control? i.e. a pot for coarse feedback control and a small > variable cap in parallel to a large fixed feedback cap? That would give > the advantage of fine control and noiseless adjustment while the pot > could serve for coarse adjustment on the different bands. > > BTW, no antenna was attached. Receiver was simply grounded. > > Brad > Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Apr 5 16:34:37 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA12933 for ; Mon, 5 Apr 1999 16:34:36 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA07541 for ; Mon, 5 Apr 1999 15:48:05 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id MAA02815 for glowbugs-outgoing; Mon, 5 Apr 1999 12:09:48 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from hotmail.com (f248.hotmail.com [207.82.251.139]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id MAA02810 for ; Mon, 5 Apr 1999 12:09:41 -0700 (PDT) Received: (qmail 75959 invoked by uid 0); 5 Apr 1999 19:08:40 -0000 Message-ID: <19990405190840.75958.qmail@hotmail.com> Received: from 147.49.1.75 by www.hotmail.com with HTTP; Mon, 05 Apr 1999 12:08:40 PDT X-Originating-IP: [147.49.1.75] From: "Brad Hernlem" To: gswynar@durham.net Cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Correction:Re: GB- Regen Progess/Question on Hybrid Feedback Control Date: Mon, 05 Apr 1999 12:08:40 PDT Mime-Version: 1.0 Content-type: text/plain Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Thanks for the feedback. I am going to try this and will let you know the results. BTW, I realized that I made a mistake in stating that the feedback cap was from the plate; it is actually from the feedback winding (plate to winding, winding to cap, cap to ground). Brad >From: "Edward Swynar VE3 CUI" >To: "Brad Hernlem" , >Subject: Re: GB> Regen Progess/Question on Hybrid Feedback Control >Date: Mon, 5 Apr 1999 13:12:45 -0400 > >Brad... > >That "hybrid" method of regeneration was, indeed, espoused by the League in >the 2nd edition of "Hints & Kinks"... > >~73~ Eddy VE3CUI - VE3XZ > > > >---------- >> From: Brad Hernlem >> To: glowbugs@piobaire.mines.uidaho.edu >> Subject: GB> Regen Progess/Question on Hybrid Feedback Control >> Date: April 5, 1999 12:14 PM >> >> After many months of tinkering with the various stages of a proposed >> regen receiver I slapped together a two tube receiver last week. Line-up >> so far is 1L4 regen detector plus 3Q4 AF amp. Detector is Armstrong >> variety with feedback winding. Feedback circuit is completed with a >> fixed 200 pF cap from plate to ground. Feedback control is via screen >> grid potential. Tuning cap is a AM broadcast band variety with no >> reduction so the tuning is very difficult to adjust at this point (this >> was meant as a prototype experimental receiver so nothing fancy). I used >> a 90 H filter choke for coupling to the AF stage. The AF stage is a >> little hokey since I am using a 1:41 ratio input transformer in reverse >> to drive a 600 ohm headset. This gives around 240K impedance (according >> to measurements, not the formula) to the 3Q4 plate which is dreadfully >> high but it was the arrangement which gave me the best results (power >> gain, mostly) with what I had on hand. With this transformer the 3Q4 is >> really behaving more like a voltage amp than a power amp so I cut back >> the potential on the screen using a 100K series resistor to B+ to reduce >> the DC current of the plate. >> B+ was 45 volts from five 9 V batteries. In operation, the receiver drew >> 1.2 mA from the B supply. >> >> Was able to hear Switzerland but without a bandspread tuning control or >> reduction drive the receiver is too hard to operate as is. The regen >> control was smooth enough but I did not like the scratchy effect using a >> potentiometer for this purpose. Has anyone ever tried a "hybrid" >> feedback control? i.e. a pot for coarse feedback control and a small >> variable cap in parallel to a large fixed feedback cap? That would give >> the advantage of fine control and noiseless adjustment while the pot >> could serve for coarse adjustment on the different bands. >> >> BTW, no antenna was attached. Receiver was simply grounded. >> >> Brad >> Get Your Private, Free Email at http://www.hotmail.com Get Your Private, Free Email at http://www.hotmail.com From glowbugs-owner@piobaire.mines.uidaho.edu Mon Apr 5 19:37:05 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id TAA13049 for ; Mon, 5 Apr 1999 19:37:04 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id SAA22936 for ; Mon, 5 Apr 1999 18:50:35 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id PAA04563 for glowbugs-outgoing; Mon, 5 Apr 1999 15:03:06 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id PAA04558 for ; Mon, 5 Apr 1999 15:03:02 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Mon, 5 Apr 1999 15:03:02 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: glowbugs@piobaire.mines.uidaho.edu Subject: GB> [Swan] Fwd: [50MHz] Fwd:[2M] Amateur operators to boycott Swatch AG (fwd) Message-ID: MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY=WebTV-Mail-2064522882-184 Content-ID: Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --WebTV-Mail-2064522882-184 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Content-ID: You guys might find this interesting... Ken --WebTV-Mail-2064522882-184 Content-Type: MESSAGE/RFC822 Content-ID: Content-Description: Received: from mailsorter-102-2.iap.bryant.webtv.net (209.240.198.99) by mailtod-122.bryant.webtv.net; Mon, 5 Apr 1999 07:48:08 -0700 (PDT) Return-Path: Received: from ns3.qth.net (NS3.qth.net [207.204.29.187]) by mailsorter-102-2.iap.bryant.webtv.net (8.8.8/ms.graham.14Aug97) with ESMTP id HAA24870; Mon, 5 Apr 1999 07:47:48 -0700 (PDT) Received: from localhost (mail@localhost) by ns3.qth.net (8.8.7/8.8.7) with SMTP id JAA19874; Mon, 5 Apr 1999 09:46:55 -0400 Received: by ns3.qth.net (bulk_mailer v1.11); Mon, 5 Apr 1999 09:38:04 -0400 Received: (from majordom@localhost) by ns3.qth.net (8.8.7/8.8.7) id JAA19530 for 50mhz-outgoing; Mon, 5 Apr 1999 09:37:55 -0400 Received: from westatpo.westat.com (westatpo3.westat.com [198.232.249.98]) by ns3.qth.net (8.8.7/8.8.7) with ESMTP id JAA19482; Mon, 5 Apr 1999 09:37:21 -0400 Received: from ccMail by westatpo.westat.com (IMA Internet Exchange 3.1) id 0003CDB0; Mon, 5 Apr 1999 10:37:10 -0400 Mime-Version: 1.0 Date: Mon, 5 Apr 1999 10:34:25 -0400 Message-ID: <0003CDB0.C21292@westat.com> From: GORDENH1@westat.com (GORDENH1) Subject: [50MHz] Fwd:[2M] Amateur operators to boycott Swatch AG To: VHF@W6YX.STANFORD.EDU, PVRC@qth.net, NEWSVHF@QSL.NET, G3WOS@UKSMG.ORG, ARES-RACES@qth.net, Antennas@qth.net, 50mhz@qth.net Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Description: cc:Mail note part Sender: owner-50mhz@qth.net Reply-To: GORDENH1@westat.com (GORDENH1) Hi, To interest of all! It speaks for itself. 73 de Howard W3CQH ____________________Forward Header_____________________ Subject: [2M] Amateur operators to boycott Swatch AG Author: Rob Carlson Date: 4/3/99 9:25 PM Dear editors, Loop readers, list readers, and assorted amateur friends, Over the past week I have received an incredible response to my query in the Hudson Division's Hudson Loop newsletter about a curious advertisement on the Swatch web-site. To help advertise their new brand of "Swatch time" watches, they appeared to be launching a satellite which would broadcast the voice messages of web readers into space and back to earth over radio on the frequencies from 145.800 to 146.000 MHz. Thanks to the excellent researching skills of Stephan Anderman, K2SMA, and Rick Lindquist, N1RL, I've discovered that Swatch in cooperation with the Russian space authorities have decided to use the two meter Amateur band for direct advertising via the "Beatnik" satellite (a mini-Sputnik and AMSAT-FR project formerly to be known as RS-19) across the entire world. According to AMSAT-France, during the construction of the satellite, the Russian space center had made a separate commercial contract with the Swatch watch company to put its messages on the satellite. This was done in spite of AMSAT objections and contractual agreements with them not to put commercial advertising content in the digital messages. AMSAT-FR couldn't back out of their own contract and had to forward the parts on to the space center. Riley Hollingsworth, K4ZDH, is doing his best to crack down on unlicensed and unbecoming operations within the jurisdiction of the FCC, but soon an egregious violation of the non-commercial status of amateur radio will begin taking place just a few miles above our heads when our two meter band is filled with advertisements for the latest Swatch watches. Bernard Pidoux, F6BVP, writes that we should do our best to ignore the satellite and not do anything to assist Swatch, such as tracking and publishing the Keplerian elements of this rogue mini-sat. I completely agree, but I believe it's necessary to go even further than that. Just as we've successfully done in response to Little LEOs and APCO proposals in the past, it's time for amateur operators around the world to let Swatch AG and the Russian space program know just how precious our bands are to us. The first step is a comprehensive boycott of Swatch products. If you were considering the purchase of a Swatch watch for you or someone else, please take a moment to consider some of the other watch manufacturers who are not stealing away ham frequencies. Next is to write a letter off to the Swatch company explaining why you made your purchase decision away from their products, and how you feel about this intrusion on the amateur bands. Use this address from their web-site registration as a starting point. If anyone knows the name of particular individuals within Swatch that the letters could be personally addressed to, please let me know. Swatch AG Jakob-Stampfli-Strasse 94 2504 Bienne CH As I understand it, the Russian space center will be able to upload voice data in ten message batches, so it's possible that under pressure from Swatch, they could "pull" these commercial advertisements off the ham bands at any time during the 30 day life, even while the satellite is still operational. This is all the more reason to make it clear to Swatch how strongly the amateur community feels about this issue right now! Also, if you come across any amateur's page this month containing the Keplerian data or any mention of the Sputnik-99, let them know what Swatch is doing and encourage them to remove them as soon as possible. I'll be maintaining a web site concerning the latest news in this problem at http://rob.carlson.org/swatch-protest, which will start with this letter. More news will be posted here and placed on the web site as I hear about it. If you have any information, please feel free to e-mail me at rcarls2@umbc.edu or kc2aei@amsat.org, or call me at (410) 455-3192 at any time. Please forward this message as necessary so that we can inform as many amateur operators worldwide as possible about this problem. 73 and good luck, Rob Carlson, KC2AEI rcarls2@umbc.edu -- Rob Carlson, KC2AEI | rcarls2@umbc.edu | http://rob.carlson.org --- Submissions 2m@qth.net ---- Submissions: 50mhz@qth.net to unsubscribe mail to: majordomo@qth.net (In message) unsubscribe 50mhz --WebTV-Mail-2064522882-184-- From glowbugs-owner@piobaire.mines.uidaho.edu Tue Apr 6 11:52:50 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id LAA13786 for ; Tue, 6 Apr 1999 11:52:49 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id LAA15868 for ; Tue, 6 Apr 1999 11:06:31 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id HAA13545 for glowbugs-outgoing; Tue, 6 Apr 1999 07:30:45 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id HAA13538; Tue, 6 Apr 1999 07:30:37 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 6 Apr 1999 07:30:37 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: "Roberta J. Barmore" cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> Re: Activity In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > Hi, Ken! > > 7118 is a hole on *your* radio, maybe--and possibly on mine; but I find > that I have a lot of trouble when I narrow down the bandpass on any > receiver, from the Drake 2-B to the Ten-Tec "Scout." I just don't fare at > all well. I think it's just my ears (or between them). I used really > broad receivers for years and have never got used to anything better! Me too, actually! :-) I listened on 7147 last night and it sounded pretty clear with ample space around it. Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue Apr 6 12:59:10 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id MAA13850 for ; Tue, 6 Apr 1999 12:59:10 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id MAA04990 for ; Tue, 6 Apr 1999 12:12:55 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id IAA14191 for glowbugs-outgoing; Tue, 6 Apr 1999 08:33:25 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from m14.boston.juno.com (m14.boston.juno.com [205.231.101.193]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id IAA14186 for ; Tue, 6 Apr 1999 08:33:21 -0700 (PDT) From: mnhopkins@juno.com Received: (from mnhopkins@juno.com) by m14.boston.juno.com (queuemail) id D7JH4SDS; Tue, 06 Apr 1999 11:32:51 EDT To: glowbugs@piobaire.mines.uidaho.edu Date: Tue, 6 Apr 1999 10:28:07 -0500 Subject: GB> The 'rush of '49 Message-ID: <19990406.102816.-387507.0.MNHopkins@juno.com> X-Mailer: Juno 2.0.11 X-Juno-Line-Breaks: 1-2,9-10,13-14,20-21,24-25,27-28 X-Juno-Att: 0 MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO On my table is a rig from about 1949 and a view to OT practice about inrush current. It is a BC-455 Command Set RX for 6-9.1 mc with a haphazard conversion, lost CW oscillator coil and a home brew 6M converter, but the power supply is the most noteworthy. Some sort of relay box is used to house a 300-0-300 transformer and, over time, pairs of diodes replaced whatever went in the Octal socket. But the center tap runs thru a big resistor bank at 120 Ohms and then to a genuine"MAZDA" 10W light bulb that says "GE" on it too. A hole in the chassis lets you see the spectacular flash when you cut on the B+ and the glow of 40mA at 250VDC acts as a high voltage reminder. It scares my kids to death, but I rather like it. It is problematic, I suppose, whether the bulb is an original feature or a retro fit when the solid state diodes were added. Doing so would both drop voltage freed by the solid state rectifiers and tend to protect the little gold top hats, too. No equalizing resistors or caps are fitted. It also occurs that the lamp helps regulation by setting a constant draw. We can thus assume the OT who left this for me to find for $3 knew something, but it is hard to know exactly what. It also says, again, that you ought to put your name or call somewhere in what you build. de ab5L, Michael Hopkins, Box 226841, Dallas, TX 75222, MNHopkins@JUNO.com Student of Tecraft, ICM, and Six Meters' golden age, 1956-58. From glowbugs-owner@piobaire.mines.uidaho.edu Tue Apr 6 15:17:49 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id PAA14102 for ; Tue, 6 Apr 1999 15:17:48 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id NAA02005 for ; Tue, 6 Apr 1999 13:57:49 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id JAA15152 for glowbugs-outgoing; Tue, 6 Apr 1999 09:59:54 -0700 (PDT) Received: from localhost (keng@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id JAA15141; Tue, 6 Apr 1999 09:59:45 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: keng owned process doing -bs Date: Tue, 6 Apr 1999 09:59:44 -0700 (PDT) From: Ken Gordon X-Sender: keng@piobaire.mines.uidaho.edu To: baswaplist@foothill.net cc: glowbugs@piobaire.mines.uidaho.edu Subject: GB> WTB!!! Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO We need a source of 42 VAC at 53 AMP continuous duty for a tube furnace power-supply here at the University of Idaho. The supply we had was made up of two transformers: 22 VAC, at least 60 amps output, 110 VAC input, but some jerk threw them away (!). We had wired their outputs in series. Anything like this out there? Ken W7EKB From glowbugs-owner@piobaire.mines.uidaho.edu Tue Apr 6 16:00:55 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id QAA14136 for ; Tue, 6 Apr 1999 16:00:54 -0400 Received: from piobaire.mines.uidaho.edu (piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id PAA28141 for ; Tue, 6 Apr 1999 15:14:37 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id LAA15969 for glowbugs-outgoing; Tue, 6 Apr 1999 11:11:51 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mail.airmail.net (mail.airmail.net [206.66.12.40]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with SMTP id LAA15963 for ; Tue, 6 Apr 1999 11:11:46 -0700 (PDT) Received: from mike from [207.136.49.25] by mail.airmail.net (/\##/\ Smail3.1.30.16 #30.399) with smtp for sender: id ; Tue, 6 Apr 99 13:11:20 -0500 (CDT) Message-ID: <002701be8058$e3ab8a20$193188cf@mike> From: "M.L. McCauley" To: , References: <19990406.102816.-387507.0.MNHopkins@juno.com> Subject: Re: GB> The 'rush of '49 Date: Tue, 6 Apr 1999 13:11:26 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2014.211 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2014.211 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO > whatever went in the Octal socket. But the center tap runs thru a big > resistor bank at 120 Ohms and then to a genuine"MAZDA" 10W light bulb > that says "GE" on it too. This used to be a common trick in the industrial electronics game, and is still seen from time to time. Works like a champ. And, say, it sure qualifies as a "tubes only" conversion". ;<) Mike, WB5MYY From glowbugs-owner@piobaire.mines.uidaho.edu Tue Apr 6 23:36:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA14480 for ; Tue, 6 Apr 1999 23:36:03 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA11546 for ; Tue, 6 Apr 1999 22:49:55 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA22616 for glowbugs-outgoing; Tue, 6 Apr 1999 19:25:22 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from mtiwmhc05.worldnet.att.net (mtiwmhc05.worldnet.att.net [204.127.131.40]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA22610 for ; Tue, 6 Apr 1999 19:25:15 -0700 (PDT) Received: from LOCALNAME ([12.73.239.211]) by mtiwmhc05.worldnet.att.net (InterMail v03.02.07 118 124) with SMTP id <19990407022400.EXGF19344@LOCALNAME>; Wed, 7 Apr 1999 02:24:00 +0000 X-Sender: ebjr@postoffice.worldnet.att.net X-Mailer: Windows Eudora Light Version 1.5.2 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" To: boatanchors@theporch.com, BOATANCHORS@LISTSERV.TEMPE.GOV, baswaplist@foothill.net, From: Sandy W5TVW Subject: GB> TRADE: URM-25 Meter Message-Id: <19990407022400.EXGF19344@LOCALNAME> Date: Wed, 7 Apr 1999 02:24:00 +0000 Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Good "Trad Electronics" RF/Modulation level meter for URM-25 signal generator. Trade for 0-1 amp or 0-500 ma or 0-250 ma Thermocouple RF ammeter in good shape or NOS. 73, Sandy W5TVW From glowbugs-owner@piobaire.mines.uidaho.edu Tue Apr 6 23:34:33 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id XAA14474 for ; Tue, 6 Apr 1999 23:34:32 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id WAA14456 for ; Tue, 6 Apr 1999 22:48:17 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id TAA22709 for glowbugs-outgoing; Tue, 6 Apr 1999 19:28:18 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from polaris.onenet.net (polaris.onenet.net [164.58.253.30]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id TAA22704 for ; Tue, 6 Apr 1999 19:28:12 -0700 (PDT) Received: from line-3.woodward.dialup.onenet.net ([164.58.202.5] helo=onenet.net) by polaris.onenet.net with esmtp (Exim 2.10 #1) id 10Ui4u-0004oG-00 for Glowbugs@piobaire.mines.uidaho.edu; Tue, 6 Apr 1999 21:28:33 -0500 Message-ID: <370AC248.3F5A9B45@onenet.net> Date: Tue, 06 Apr 1999 21:26:17 -0500 From: Bill Wyatt Organization: Oklahoma Mesonet Project (OCS) X-Mailer: Mozilla 4.5 [en] (Win95; I) X-Accept-Language: en MIME-Version: 1.0 To: Glowbugs Subject: GB> 3C24 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, I picked up a cool looking tube at the local hamfest over the weekend. It is a 3C24. It has a plate connection on the top of the tube and the grid is out the side. One of your cooler looking tubes and should be kind of okay for a low power rig. Does anyone have information on using this tube to build a low power cw transmitter. The Handbook, shows 1.6 KV and 60 ma. on the plate and 7 ma. on the grid. That works out to around 100 watts input and I would rather be in the 10 to 20 watt area. Just wondering if the tube will die and early death from cathode poisoning? Oh the operating frequency is up to 60 Mhz. I know the tube is a bit over kill for low power but, with the plate and grid connections, it just looks neat. Anyone out there that can lend me some direction? Thanks, Bill N5WO From glowbugs-owner@piobaire.mines.uidaho.edu Wed Apr 7 00:15:13 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id AAA14503 for ; Wed, 7 Apr 1999 00:15:11 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id XAA10927 for ; Tue, 6 Apr 1999 23:29:01 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id UAA23323 for glowbugs-outgoing; Tue, 6 Apr 1999 20:01:33 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from postal.indy.net (postal.indy.net [199.3.65.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id UAA23314 for ; Tue, 6 Apr 1999 20:01:28 -0700 (PDT) Received: from indy2.indy.net (root@indy2.indy.net [199.3.65.7]) by postal.indy.net (8.9.2/8.9.2) with ESMTP id WAA15513; Tue, 6 Apr 1999 22:01:15 -0500 (EST) Received: from localhost (rbarmore@localhost [127.0.0.1]) by indy2.indy.net (8.8.7/8.8.7) with SMTP id WAA28088; Tue, 6 Apr 1999 22:01:42 -0500 (EST) Date: Tue, 6 Apr 1999 22:01:40 -0500 (EST) From: "Roberta J. Barmore" X-Sender: rbarmore@indy2 To: BA , glowbugs@piobaire.mines.uidaho.edu Subject: GB> A and B batteries, rolling your own but not from scratch Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-glowbugs@piobaire.mines.uidaho.edu Precedence: bulk Status: RO Hi, Gang! Some of us--well, me--still like to use batteries on small sets. The DC is sparkling clean (insert your own audiophile/phoole yakk here if desired) and they're just more fun. Trouble is, have you priced a tall ol' #6 1.5V cell recently? Or a good B battery? Yikes! On the other hand, every corner store's got AAA, AA, C and D cells galore, and tons of the rectangular PP3 nine-volters. But they're awkward things to hook up with flying-wire leads. Sooo....with 6-5/8" of 2" PVC drainpipe, a couple of wood, masonite, or plactic circles, a pair of RS D-cell holders and a scrap of wood to bolt 'em to, plus a little hardware, a person can turn out a nice physical facsimile of a No. 6, with replaceable innards yet! A little cranking away on a fancy word-processor plus a color printer gives you a very fine "Semperaut Super (the Radioman's Choice) Radio 'A' Battery, No. 6" with genuine binding-post terminals and all! (Tapping the walls of the pipe longways for 4-40 bolts is the fussiest part, but you do want to be able to open the thing up when the Ds go flat). Note that 2" PVC is a little skinnier than the real thing; you may be able to find something better. Stacking, tacking and boxing up PP3s for the B is a little trickier; old manila or "oak tag" file folders can be cut and glued into decent custom boxes, and another chunk of Sturdy Nonconductive Material Of Choice to hold the binding posts plus a few yards of black plastic tape to insulate it and hold the whole inner workings solid ends up with a decent if nonstandard size B block; a little more word-proceesing and the thing is done. Alas, 45 is the first of the usual voltages you can hit easily; but if 27 will do in place of 22.5 and 72 instead of 67.5, it's not a bad way to go! *Plastic* (or Bakelite) thumbnuts are a good idea for any B battery much over 45V, especially if the terminals are close together; or you can buy snaps of the same size as used on many of the old B batteries at many hardware outfits, or even maze up your own sockets. (You're on your own there, 135V worth of PP3 batterage kicks like a mule and no warranty express or implied shall be construed from these comments: caveat fabor! [Faber? Fabtor? Arrgh, foundered on the same ol' grammatical rocks.] ...I'll e-mail the artwork (Word for Windows .doc files) to anyone who asks. The rest of the details are up to the builder. I used red and white stripes; having almost hijacked the name from one battery maker (with the help of HS Latin, small wonder I snuck out with Cs!), it seemed only fair to borrow the general look of the artwork from another. ;) 73. --Bobbi KB9GKX "RJ" rbarmore@indy.net Roberta J. (Bobbi) Barmore FISTS #3388 * G-QRP #10001 * ARRL * RSGB * WIA Appreciator Of Vacuum-Tube Ham Gear and Vintage Keys From glowbugs-owner@piobaire.mines.uidaho.edu Wed Apr 7 02:24:47 1999 Return-Path: Received: from smtp.WPI.EDU (root@smtp.WPI.EDU [130.215.24.62]) by blargh.wpi.edu (8.8.7/8.8.7) with ESMTP id CAA14566 for ; Wed, 7 Apr 1999 02:24:46 -0400 Received: from piobaire.mines.uidaho.edu (root@piobaire.mines.uidaho.edu [129.101.8.252]) by smtp.WPI.EDU (8.9.3/8.9.3) with ESMTP id BAA14701 for ; Wed, 7 Apr 1999 01:38:40 -0400 (EDT) Received: (from domo@localhost) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) id WAA24586 for glowbugs-outgoing; Tue, 6 Apr 1999 22:10:02 -0700 (PDT) X-Authentication-Warning: piobaire.mines.uidaho.edu: domo set sender to owner-glowbugs using -f Received: from dfw-ix16.ix.netcom.com (dfw-ix16.ix.netcom.com [206.214.98.16]) by piobaire.mines.uidaho.edu (8.8.3/8.6.12) with ESMTP id WAA24575 for ; Tue, 6 Apr 1999 22:09:57 -0700 (PDT) Received: (from smap@localhost) by dfw-ix16.ix.netcom.com (8.8.4/8.8.4) id AAA09299; Wed, 7 Apr 1999 00:01:29 -0500 (CDT) Received: from aus-tx43-15.ix.netcom.com(207.221.76.79) by dfw-ix16.ix.netcom.com via smap (V1.3) id rma009252; Wed Apr 7 00:00:54 1999 Message-ID: <370AE682.EE5C01C6@ix.netcom.com> Date: Wed, 07 Apr 1999 00:00:50 -0500 From: David Stinson Organization: ARC-5 Enterprises X-Mailer: Mozilla 4.5 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: "Roberta J. Barmore" CC: BA