ZVEX: Taking a giant leap forward into the past.

The Candela Vibrophase is an audio guitar effect that produces a mono output which creates a realistic 3D rotary speaker effect combined with phasing, wah, vibrato and tremolo effects. This hypnotic sound is produced using no batteries or power supply, merely a candle that drives two solar cells and a Stirling heat engine that spins an optical control disc whose design can be controlled by the user.