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Let me provide some more background on the situation. The original problem was loss of picture (still has sound). Because I don't have the training & specialized equipment for television repair, I found a local shop which does vintage electronics restoration exclusively, and took my TV there. They told me that they replaced some capacitors and one of the HV tubes (forget if it was the horizontal output or HV rectifier), and the set was able to maintain high voltage for ~20 minutes, but then the flyback failed. I don't know if a ring test was done or just how this was diagnosed. They still have the set, as I've been trying to help source a new transformer. So I can't take photos of it at the moment.
Thank you to everyone. I appreciate your help & input.
I know there are varied opinions of the PortaColor, but I'm motivated to keep this particular one working, for sentimental reasons.
I'm proficient with electronics, but tubes are a little before my time, and I lack expertise with television circuits (particularly the HV portion). I know what I don't know, and won't just haphazardly & aimlessly start messing with things. I want to learn as much as I can, however.
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