[Hallicrafters] ht37

rbethman rbethman at comcast.net
Sat Jun 27 11:19:22 EDT 2009


Jack,

I agree with the others in regard to the SSB generator transformers.  
However, it seems that you have lost ALL audio, and have nothing but 
carrier.

I'd start at the microphone jack with an O-scope.  Start tracing the 
audio from there.  It "could" even be a simple broken mic wire, 
something in the audio stage that has blown and is shorting out, or 
anything along the path for the audio.

If it was mine, AND it turned out to be the transformers, I'd rewind 
them myself.  Not everyone thinks much of these radios, but I sure do.  
The HT-37/SX-101 was my second ever station.

Bob - N0DGN

>>> I'm having trouble with my ht37.  Three or four months ago it stopped 
>>> transmitting in ssb. CW is ok and I get output is dsb(but no audio). 
>>> Sideband generator tubes check ok. You all know what a job it is getting 
>>> into the generator unit.
>>>
>>> Where do I go from and what should I look for to identify my problem. Any 
>>> help would be appreciated!
>>>
>>> 73 & TNX
>>>
>>> Jack
>>>       
-- 
Bob - NØDGN



More information about the Hallicrafters mailing list