Bare-bones Musical Tesla Coil is Tiny and Tinny

We’ve seen musical Tesla coils aplenty on these pages before, and we’ll be the first to point out that [Kedar Nimbalkar]’s musical high-voltage rig doesn’t quite qualify as a Tesla coil. But it’s dirt cheap, and might make a pretty cool rainy-afternoon-with-the-kids project.

Chances are good you have the parts needed for this build lying around the house. All that’s needed is an audio power amplifier and a high-voltage source. [Kedar] used a Class D amp board and a 3V to 7kV high-voltage module sourced from eBay for a couple of bucks; if you really want to go cheap, tear …read more

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