Quote:
Originally Posted by Kevin Kuehn
Pot could have been dirty/intermittent or previously damaged. I think it would be a good idea to keep your scope on the grid of the 6BG6 when powering this up so you have some indication of what you're feeding the horizontal output with. You might want to ohm out your flyback windings to see if it went open, again. Hopefully not. Before this happened did you ever get back to looking at the waveform and bias on the 6BG6 grid?
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No on looking at the bias or the waveform but if I get it up and running again tonight, I will. I bought a full set of Pomona (SP?) test sockets for octal and 7&9 pin vacuum tubes so testing is pretty easy.