Thor Music

A solid-state Tesla coil with a primary running at its resonant frequency in the 41 KHz range. That is modulated from the control unit in order to generate the tones. The high voltage sparks make the noise. Every cycle of the music is a burst of sparks at 41 KHz, triggered by digital circuitry at the end of a "long" piece of fiber optics.

This Tesla coil was built and is owned by Steve Ward, who is an EE student at University of Illinois Urbana-Champaign.