Prototype set is here

[miniman82]

Originally Posted by MelodyMaster

So you don't actually have the power supply for this set? Did it go missing? And won't that slow down getting it going?

No, and there's no reason to expect it will ever turn up. No one knows where it is, so it is assumed missing. Something like that would be very common looking anyway, so it probably was either tossed or repurposed for something else. It won't really slow anything down, other than the time it takes to build a new one. It's easy to trace the wiring, and figure out what voltages need to go where. I figure I'll start with an old console amp chassis, install a suitably large power transformer, and use the sockets for the rectifiers. Maggie chassis are plentiful, so that's what I'll probably use. That, or I'll strip the old organ chassis in the next room.

[miniman82]

Found the heater string connections: the 'main' part of the chassis, that is, everything that is not tuner/IF related, gets it's 6.3 volts from the small male 2-prong plug on the back. The tuner/IF strip is powered from pins 1 and 6 of the 7-pin round plug, with pin 1 connected to chassis ground.