I have been going through my files and found this list of QST articles that
may be of interest to the group who are into Collins 'S' Line/KWM-2/2A
equipment:

DATE          SUBJECT

Sept 1961     AM with Collins SSB Units

Nov  1961     30L-1 Product Review

Feb  1962     75S-3 Product Review

Apr  1962     Clean AM with 'S' Line

Feb  1963     32S-3 Product Review

June 1963     AM for the KWM-2

Nov  1963     62S-1 Product Review

Dec  1963     Instantaneous Break-In for the 'S' Line

Nov  1964     Cleaner Break-In with the 32S-3

Dec  1964     Transistor Keyer/Muter for the 'S' Line

May  1966     More on 'S' Line Break-In Keying

Apr  1967     Independent Frequency Control with the 32S-1 and 75S-3

Apr  1967     Cross-Band Operation with the 75S-3 & 32S-3

Dec  1968     Further Improvements in the 32S-3

Mar  1969     A CW Filter for the 75S-1

Mar  1973     A Contest Spotting Switch for the 32S-3

Enjoy!

73,

Michael Crestohl, W1RC
w1rc@amsat,org

January 27th 1997