Quote:
Originally Posted by Eric H
And a few more caps...
The vertical was cutting in and out when I tapped on the 12SN7 tube so I replaced it, it seems solid now, ...
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Could that cutting out and tapping be a dirty tube socket, or possibly the tube that you took out having dirty pins?
I recently brought back to life a factory wired Dynaco PAS pre-amp. One channel was fine; the other was dead. I had not cleaned the sockets yet and wiggling one of the 12AX7 tubes brought it back temporarily.
Long story short, DeOxIt on a toothpick into each socket and all is well now.
Just a thought, could be still a good tube!