Travelogue Magnetic Table CV Controller

via Travelouge where you'll find additional details and pics.

"Here is one of my designs that I based off of a magnetic pendulum toy. The toy consisted of a dangling string with a magnet on the end of it; then it hovered over magnets on a table that either repelled or attracted the string magnet; the stringed magnet then maneuvers around in crazy patterns due to the position of the table magnets.

There are 2 control voltage outputs for this device; one for the X axis, and one for the Y. They vary from 0 to 5 volts. These can be used to change any parameter in a synthesizer or effects system to make interesting sounds..."