This is my third buy from Silicon Chip, the PCB to the most advanced (analogue) Theremin.
So far fiddling with the volume as Icannot get that to work really. And please, say nothing about the awful, but propably effective heatsinks.
A Russian Theremin
SC Theremin
MIDI Theremin
Mini Theremin Mk 2
New Improved
Opto Theremin
Digital Arduino Theremin