On Tue, 23 Mar 2010 19:32:26 -0500, G.P. Blount wrote:

>Greetings and thanks for the list! 
>
>I recently acquired a very nice TR-7 which is exhibiting some anomalous 
>behavior. 
>
>I left the TR-7 turned on for a couple of days (tuned to WWV) after I got it. 
>When I came into the shack several days later, I could not hear anything. I 
>turned the AF all the way up and could just barely hear the audio. I flipped 
>the MODE switch from AM to USB and the audio came back on instantly.


I worked on one not long ago that had similar symptoms. The cause was
determined to be oxidized Molex pins. There is a LOT on this subject on the
list archives, but in a nutshell, the first troubleshooting step for just about
any TR-7 problem is to re-seat all the circuit boards.

73

-Jim
--
3/21/2010
"So this is how liberty dies... with thunderous applause." 
(Padmé Amidala, "Revenge of the Sith")  



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