[Collins] need early 75S-3B schematic et al

pete wokoun, sr. [email protected]
Sun, 28 Apr 2002 15:12:25 -1000


Aloha Collins Group:
  The Battleship Missouri Amateur Radio Club (BMARC) operates as KH6BB from 
the USS MISSOURI's radio room.  We recently received a fair-poor condition 
S-line except for a 516F-2 transmitter power supply that is undergoing 
renovation.  We are in need of a schematic for the 75S-3B receiver which 
appears to be the first production run.  The one downloadable from the 
Collins Collector site is the last production run with service bulletins 1 
and 2 included.  The one we need would not have the service bulletin 1 and 2 
changes.  For a quick check, the one we need has 10K resistors across the 
FL2 and FL3 output variable caps C127 and C152.  If you have one we could 
get a copy of please contact me!  Also, if you have an extra 516F-2 supply 
please consider donating one to this American Memorial.  Remember all 
donations are tax deductable!
  We also need (1) an S-line/KWM-2 audio output transformer, collins part 
no. 667-0302-000 or equal.  This is a 2500 ohm, 50 ma primary, 500 and 4 ohm 
secondary, rated 3 watts or so, open frame construction. And (2) a std front 
tuning knob for the 75S3B, and (3) a pair of 8722's for one of our 
transmitters.
  Mahalo if you can help in any way.
  BTW, our web site is now up, not much there yet, but it's just born:  
www.kh6bb.org

73s, pete KH6GRT



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