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As far as the hot chassis issue goes, I just disconnected the two caps going from AC line to ground, and now it's safe to work on. Those caps didn't seem to affect the radio performance at all. It still measures 70vac from chassis to outlet ground, but I can't feel it at all. My question is, why are line bypass caps causing the chassis to go hot in the first place? Is there something wrong here, or is the chassis supposed to be hot?
The other odd thing is that I never got shocked working on this set for a whole month. Either I was lucky this entire time, or there is some internal fault that arose.
I hope there is someone here who has restored one of these that can help. I don't intend to put it back into the cabinet until the mystery control is working, even if it takes another 10 years!
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