Quote:
Originally Posted by Adam
This is Zenith's first all transistor b/w TV, made in 1965/66.
The initial problem I had with this was no HV, which turned out to just be caused by a bad electrolytic cap. This set was full of those black ones with the red ends which are nearly always bad. I just wound up replacing all of them.
It works ok now. The CRT is a bit weaker than I would like. And there is that weird vertical line on the screen I pointed out in the picture. I do have the VHF fine tuning knob, but it's broken, and I don't have the antenna.
Lots of pics...
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That vertical line is generated by the horizontal sweep circuit. It has a name, I think something like "Barkhausen lines". Please correct me if I've gotten it wrong.