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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32GB solid state Zune upgrade

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[Andrew] wrote in to show us how he upgraded a broken Zune to solid state. He had one that was giving the Error code 5 when it booted. This means the hard drive is bad. He was able to find a compatible solid state 32Gb drive that, with a little bit of case modification, he made fit. Everything fit back into the Zune and looked completely stock. This was all done for less than $130. He seems pretty proud of getting a 32GB Zune for $150, and we don’t think that’s too big of a deal. We found a bunch of them on eBay for under $100. He even states that he doesn’t see any performance or battery life improvements. So why do we post this? Well, we like to see stuff split open and we actually like the idea of a no-moving-parts mp3 player. We’re hard on our electronics and the thought of that platter getting jarred over and over and over and over really bothers us. Great job [Andrew].

Solid state tesla coil

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While researching solid state Tesla coils we stumbled across this old project. As you have probably guessed from the pictures, this coil is meant to actually play music. Knowing how to add eye catching flare, the coiler uses a Plexiglas frame turned light pipe; only to be complimented by an audio amplifier complete with graphic equalizer. There is a video of the coil in action on YouTube. We have covered singing tesla coils in the past. Other twists on the classics include the tesla coil guitar amp and a hand held plasm gun.

24 Solid State Drives in Raid

In a time when marketing is all around us, companies often have to come up with new and creative ways to get us excited. Some go the viral route, others hire famous spokes people. Samsung did well with this idea. Let some computer geeks build something awesome and have fun with it. They chained 24 drives together to create a whopping 6Terrabyte array. They run various speed tests and even test the drive integrity by bouncing on a trampoline while dangling them from their chords. Yeah, they make the computer geeks a little geekier than they need to be, but who didn’t get excited to see those transfer speeds?