[R-390] Strange 390A problem

[Peter Worrall]

Grid / cathode intermittent partial short problem in RF deck?

Pete
----- Original Message ----- 
From: "Tom Norris" <r390a at bellsouth.net>
To: <r-390 at mailman.qth.net>
Sent: Saturday, July 15, 2006 1:25 PM
Subject: [R-390] Strange 390A problem


> For several years, my '63 Imperial has had an odd presumably AGC  
> related problem.  At intervals sometimes approaching hours, it will  
> reduce gain by as much as 30db.  It does this regardless of IF module  
> installed, tubes, etc. Voltages remain constant. (just something I  
> ask every couple years or so)
> 
> Suggestions?
> 
> Tom NU4G
> 
> 
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