Moog Music Forum

I think it is not the pitch board, but insufficient grounding of the instrument.
Also read my post here: https://forum.moogmusic.com/viewtopic.php?f=5&t=28394
The Theremini power supply is special because Gnd (outer contact of DC plug) is connected to the PE (protective earth) contact of the mains ...

Here you can read about the process: http://www.ethermagic.eu/Leftify
The sides are replaced. (Please take note, the old sides will be destroyed in the process.)

Hello Valery,
after setting the Theremin Mode to "on" in the "advanced settings", you can toggle between two modes (displays) using the "setup"-button.
The Theremin-Mode Shows "<Pitch Volume>" which means that the "pitch correction"-knob acts as tune for the pitch oscillator
and the "amount"-poti ...

Hello, there are a few prerequisites: The space around the Instrument must be free of any conducting material, i.e. no metal or cables near the antennas.
Even wood (table) could be too much capacity. Best is to use a microphone stand. I put it on a big dry cardboard box.
Though the teremini itself ...