1. Build the circuit. Use the pocket theremin circuit schematic (below) for building the complete dual 555 timer IC oscillator and frequency divider circuit. Pick a pair of CdS photocells from the ...

That’s why I decided to put together a theremin on a breadboard—a simple board for building circuits on. Not only did the high-pitched sounds annoy both my dog and husband (much to my wicked ...

Where the original Theremin sensed hand proximity using two ... [Fearless Night] provides downloads for the schematic, code, parts list, and even 3D models for the enclosure.