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tinyQCW

PostPosted: Wed Feb 03, 2016 6:01 pm
by loneoceans
Thought this project went well enough to share.

Some of you on this forum might have built a tinyTesla, which I always thought was a really small cute SSTC. One thing I was especially fond of was the small secondary coil it uses which are pretty hard to make by hand since they are wound with very thin wire. I had one tinyTesa secondary coil, so this motivated me to build a QCW tesla coil with it to see how much spark I could get from this small coil.

Watch on youtube.com


Another goal of the project was to make a very small QCW coil that could easily fit on top of a table, but still have good performance and be 'plug and play' easy to operate. The size restriction was that it needed to fit into a medium size USPS box (!). The result is a very compact coil, yet capable of sparks just over 32" or so despite its small size (more than 13x secondary length!).

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Photo of the coil on my messy bench.

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And of the coil in action.

Coil runs with a 340VDC bus with 4 TO-247 IGBTs. I'm using a pretty fat bus capacitor though I could probably replace that with a bunch of smaller ones and make the coil even smaller!

Enjoy!

Re: tinyQCW

PostPosted: Wed Feb 03, 2016 9:04 pm
by Bayley
I'm so happy that this exists.