[Hallicrafters] ht37

[David C. Hallam]

I would have to agree with Carl about an audio transformer problem in 
the SSB generator.  I have had that happen.  Unfortunately there are not 
too many options if that is the case.  You can try to find a parts unit 
with a good SSB generator.  It's not all that difficult to remove from 
the chassis.  If you have time and patience, you can rewind the 
transformers.  If more than one of them are open, paying to have it done 
is probably not worth the cost unless this particular HT-37 has 
sentimental value for you and cost isn't a consideration.  The only 
other thing I can think of is to search the ham fests for interstage 
transformers.  I see them occasionally and they do show up on eBay from 
time to time.

David
KC2JD/4

Carl wrote:
> Unfortunately the audio xfmrs on the generator are known to open. Id start 
> by using a scope or meter to access easy to get at points using a tube 
> extender. Some measurements can be made simply by removing a tube and 
> looking for  voltages coming thru the xfmr. Use the manual charts.
> 
> Carl
> KM1H
> 
> 
> ----- Original Message ----- 
> From: "Jack Schrader" <w1jhs at myfairpoint.net>
> To: <hallicrafters at mailman.qth.net>
> Sent: Friday, June 26, 2009 10:33 PM
> Subject: [Hallicrafters] ht37
> 
> 
>> 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
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