Solid State Tesla Coil Plays Music

If you’ve ever wanted to build a Tesla coil but found them to be prohibitively expensive and/or complicated, look no further! [Richard] has built a solid-state Tesla coil that has a minimum of parts and is relatively easy to build as well.

This Tesla coil is built around an air-core transformer that steps a low DC voltage up to a very high AC voltage. The core can be hand-wound or purchased as a unit. The drive circuit is where this Tesla coil built is set apart from the others. A Tesla coil generally makes use of a spark gap, but [Richard] is using the Power Pulse Modulator PWM-OCXi v2 which does the switching with transistors instead. The Tesla coil will function with one drive circuit but [Richard] notes that it is more stable with two.

The build doesn’t stop with the solid-state circuitry, though. [Richard] used an Arduino with software normally used to drive a speaker to get his Tesla coil to play music. Be sure to check out the video after the break. If you’re looking for a Tesla coil that is more Halloween-appropriate, you can take a look at this Tesla coil that shocks pumpkins!

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DIY Solid State Tesla Coil

Tesla Coils are always a blast to see and are relativity simple to build. While there are plenty of sites on the subject, [Michael’s] newest instructable breaks building a solid state Tesla Coil down to 12 easy steps.

Items that should be familiar to anyone who has even looked at a Tesla Coil include PVC pipe, Aluminum ducting, and wire … lots of wire. The PVC pipe is cut to length and a flange is attached to help form a base. From there the pipe is wound with about ¾ of a pound of 30 AWG enameled wire, which takes some time by hand to make sure you don’t overlap or get space between the coils.

Aluminum ducting is then wrapped around the outside of a second flange. Some stovepipe wire is ran though the ducting and twisted to close up the 2 ends, and hot glue is used to attach the two ends together. The assembly is screwed to the top of the pipe now containing the secondary of the massive transformer. All that is left is to attach a primary, which is made out of a few turns of 16 AWG wire, and the control circuitry.

Join us after the break for a shocking video!

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