Singing Tesla Coil

Tesla coils are great to watch at the best of times but when they are being used to play music it takes on a whole new level of coolness.

Here is a small snippet on the video from the guys that put it together:

So just to explain a little further, yes, it is the actual high voltage sparks that are making 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.