Valery the lady after Christmas is a great idea, I want to send you many parts as your success is my success.
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Everyone the photo below is my pulse width modulation theremin volume control. Now that I can do multi layer printed circuit boards someday I will reduce the size of the 3” x 8” board. Right now I have about 30 of these longer boards waiting for that adventurous University student to experiment with. This same board can also be the Pitch side for sound with a variation in the components.
The standard passive theremin volume can use over 2 kHz in variation or off tuning to quiet the sound. My PWM approach can do the same thing in 200 Hz that can be spread out over a 24” volume-shading window using a 4” antenna. Use the 4” high voltage wire, I showed earlier in this thread, placed in the loop and the volume can have a softer response on the outside edge of the loop, then aggressive at inside edge near the wood box. The parts are minimum and the Vactrol can be seen.
I hope I am not falling into that pit of moving away from practical and making something so complicated it gives me an excuse for not succeeding.
Christopher
“Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple. But it’s worth it in the end because once you get there, you can move mountains.”
― Steve Jobs
