[Hallicrafters] SX-62A Alignment

[Carl]

With two SX-62A's and a SX-42 of my own plus several done for customers Im 
oblivious to the pain by now!

When I get frustrated I just slide over to another bench and work on a 
repair friendly National, Collins, Hammarlund, etc for awhile.

Carl
KM1H

----- Original Message ----- 
From: "K1LKY" <k1lky at earthlink.net>
To: "TC Dailey" <daileyservices at qwest.net>; <hallicrafters at mailman.qth.net>
Sent: Friday, August 28, 2009 9:53 AM
Subject: Re: [Hallicrafters] SX-62A Alignment


>
>
> -----Original Message-----
>>From: TC Dailey <daileyservices at qwest.net>
>>Sent: Aug 27, 2009 5:05 PM
>>To: hallicrafters at mailman.qth.net
>>Subject: [Hallicrafters] SX-62A Alignment
>>
>>I've run into the same symptoms on the 3 SX-62's and 62A's I've done.
>
> I hereby nominate TC Daily for Sainthood.
>
> The SX-62 and -42 are among the most challenging radios to get really 
> right.  The front ends of them are packed in there so as to make 
> replacement of bypass caps a real challenge.  And often a small coupling 
> cap has shorted and taken out a resistor or two.
>
> One of the most experienced and determinted radio restorers I know finally 
> gave up on one SX-42 because one of the high frequency bands was rather 
> deaf.  There seemed to be no cure for it.  (May have been a shorted rf 
> coil, who knows!)
>
>>Another thing that seemed to help was to "wash out" the trimmers with 
>>99.8%
>>isopropyl alcohol -
>
> Thanks for that tip.  The trimmers have gotten a lot of talk on the R-390 
> list because they stick and then break when you try to adjust them.
>
> Roy
>
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