Thanks, Gary.
Yeah, I swapped out tubes already but one at a time.? I have cleaned out the sockets and used a Proxabrush with DeOxIt in all the sockets.
I've changed four more resistors and thought I had a "Eureka!" moment but it didn't happen.
To completely discount the tubes, I think it's now time to replace all of the tubes at once.? I'll let y'all know if that did it.? You're in the right direction and I have had gassy 12BE6's mess things up in the past...
Steve Wedge, W1ES/4
Time flies like an arrow.? Fruit flies like a banana.
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On Friday, January 5th, 2024 at 11:23 AM, wb6ogd <garywinblad@...> wrote:
Wow, poor Steve..
Sounds like you have replaced everything, what a tricky one.
The one thing that I know pulls the AVC line is gassy tubes.? I don't know how much the gas changes with warmup, maybe Richard or someone does?
I might try pulling tubes on the AVC bus and watching the AVC lines during warmup where you are seeing the problem.? The voltage won't be right but
just look for drift.
73,
Gary
WB6OGD
