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Update
Thanks for the reply. I updated the images so only the schematic is a pdf (for resolution). The crt pic was taken with the chassis on it’s side and then rotated so the left is the left side of the horizontal sweep. The switch on the schematic selects the audio source for the set’s audio amplifier and speaker. It can be tv, phono or FM radio. I’ll continue checking the surrounding components. You’re right about the ringing. No ringing at V15 but ringing at V22. I’ll check every component between those two tubes.
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