YouTube Published on Jun 18, 2012 by organfairy
"Warning: It sounds horrible - but it is an interesting experiment.
The idea that two high inaudible frequencies can be mixed and form a third low audible frequency controlled by waving a hand in front of an antenna was discovered by Russian inventor Lev Sergeyevich Termen in 1919. He build a playable performance instrument that he patented in 1928 and today it is probably the best known electronic instrument from that era.
Instead of the original vacuum tubes I have constructed my version around oscillators made from logic gates - I don't have any practical experience with tubes so it felt more natural for me.
The music is from 1999 and I play it on Yamaha HE-8 organ, Casio SA-1 keyboard, Ace drum machine, Roland SH-2000 synthesizer, and Yamaha PSS-12 keyboard with homemade phaser unit."