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There is a 600v pulse at horizontal rate on the plate and it stays there rock solid, what should I check next? I was assuming the high grid voltage was making it so the plate voltage never got close enough to 0 to pull in a picture, but I'm not really sure why that is without a decent schematic to follow. If it were a true CTC-9, I'd blame a bad AGC pot right away since that is what sets the grid voltage. On this chassis I'm not sure since I don't know where else the AGC circuit goes.
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Evolution...
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