Theremin power supply

radio

is it a superheterodyne

there are a lot of parallel LC circuits

Yes a lot of tank circuits for filter and selectivity, have you found the LO and have you seen the supply rectifier, which is different to todays diode ones. All the transformers for impedance up and down matching scaling. Have you seen the diode they spend for the AM demodulation. Its not done by the nonlinear tube input, strange, or its part of the FM demodulator, so they do FM -> AM conversion to then demodulate AM into audio. They have two antennas left a wire one and right is a frame antenna. Maybe AM FM separate. Typical schematic of a tube receiver. Where do you get that from, and who is asking, the robot?

I found it in the new video game The Outer Worlds, on the wall in an office.

I did see the little diode, it took me a while to remember that you showed us this circuit as an AM demodulator.

there doesn't seem to be a switch to flip between the AM and FM inputs

I tried modelling the power supply

ok, but i cant read any values. 1:8 transformer ??? Its going into kV! The heater scondary is for about 6VAC and close to 30:1, right. For more i dont think you can makes use if this schematics, there are better sources.