“Sweet Home Alabama” Using Tesla Coils

These are two gigantic solid state musical Tesla Coils. A Tesla Coil is a special type of transformer invented by Nikola Tesla that is able to generating extremely large voltages using a phenomenon known as electrical resonance. Each coil in this video is capable of generating a 13 foot spark. This equates to about 500,000 volts of electricity.

The primary drive system for the coils consists of high power semiconductors arranged into an H-Bridge switching configuration. During a spark event, the coil is pulsed on for a few hundred millionths of a second. During this short time, thousands of amps circulate within the primary tank circuit and the energy is coupled into the secondary resonator through magnetism.

So what appears to be a continuous burst of sparks is actually a specific number of sparks generated per second. By modulating the number of sparks that emit from the coil each second, different tones can be produced by the coils.

Hat tip: Charlie

One thought on ““Sweet Home Alabama” Using Tesla Coils

  1. There are things I fear, but I prefer to think about being fearless….the potential of that – Similar to dreaming about traveling up in a hot air balloon. There’s a hot air balloon scene in a small movie called, “Men Don’t Leave” that comes to mind when I read your piece. It’s about letting go of the fear and being fearless. I want to be fearless – Just like Erik Weihenmayer.

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