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How to Build a Slayer Exciter
Desktop Slayer Exciter With a Proximity Light.
Make an Ultra Simple High Voltage Generator
Fractals: How to make a Computer-Generated Angel's Wing
Build a World's Smallest Electronic Shocker!
Transferring Images to Wood
Solving the Megaminx (Faster and Simpler)
Illuminated Star Chart
There are better Joule Thief circuit this is a good build though
Supercapacitor Joule Thief