The top switch switches the radio and phono signal. The top switch is the one that I am interested in. I already have that one wired correctly so no need to follow the wiring on that one. The bottom switch is for allowing the radio to shut off when the changer runs out of records. Thank you so much for taking the time to do this, Russie. Than in the air wishing I was on the ground. I'd rather be on the ground wishing I was in the air, See an earlier thread that I started referenced by Cody when he started this thread. One large supply to simulate what originally powered the radio would have to been quite large (like 300 or 400 watts) due to a very large power resistor used as a voltage divider that in itself was somewhat of a fire hazard due to heat dissipation. Performance was only ok, and it had a non-original look with the two supplies tucked into the cabinet. It required two supplies, one (24 VDC) for filaments and speaker field, and one (117 VDC) for B+ and phono motor power, which was a compromise. I wonder if it was some sort of one and done kind of thing in a transition period, probably so rare nobody wants anything to do with it. Well, that's exactly what I did and it kind of lead me down a rabbit hole, especially considering that the 42DC chassis I had was not anything like the schematic on Nostalgia Air.
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