[ARC5] "Curing Chirp in Command Transmitters"

[mac via ARC5]

WAY back in the 1940s when I was a grade school kid my Elmer (WW2 vet  
who ran the local radio repair shop and did general electrical  
contracting in the town) gave me an SCR-274N transmitter with some  
extra stuff in it. Said he got it from Army MARS and that he had   
modified it to get rid of the "chirp" in it.  I remember asking  
something like "what's chirp?" and not understanding much of the  
answer.  Don't know whether or not his modification(s) worked either.   
Anyway though, find it interesting that the problem is still around  
and the discussion is still going on  almost 70 years later.

Dennis D.  W7QHO
Glendale, CA