Wednesday, February 1, 2012
This is a demonstration of a "Minimum Theremin" electronic project that I got from Art's Minimum Theremin website. It is very simple to build and uses 2 hex inverter IC chips. Other components include resistors, electrolytic and ceramic capacitors, and 2 trim pots (variable potentiometers). I used a pie plate as an antenna and hope to improve it by finding a better antenna. The original design used a 9 VDC battery and a 5 VDC voltage regulator TO5 chip but I had a regulated 5 V power supply handy and substituted that.
http://www.youtube.com/watch?v=U0pflm4VxX4&hl=en
Monday, May 17, 2010
My Keppinger-design theremin power supply/amp working, playing music for its first time. Song is Traffic's "Low Spark of High-Heeled Boys." This was built completely from scratch by myself. The cool purple-glowing tube is a VR150/OD3 voltage regulator tube. I also built the mute switch.
http://www.youtube.com/watch?v=auzvXnjG8-8&hl=en
