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Bob, only recently, I have gotten back into working on my televisions that have been in queue for literally years. I have been concentrating on tube amplifiers. What I have found is that so many times, on initial power up, monitoring the filters, etc. I have no signal pass at all.
Tube sockets are always a problem with those amplifiers. Now that I have worked on the Pilot TV-37 and RCA 630TS, one thing that I always do is clean each socket as part of the drill. It has "burned" me too many times.
Congratulations on another nice project. I have a Porthole in queue right now, but the Admiral 19A11 just made it to the bench and that is front and center!
Good on 'ya, Mate!
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