Posts Tagged ‘joule’:

2013-02-27 CD-ROM Drive Motor Runs Joule Thief

I had to spin the shaft really fast to get the LED to light up, and now that I converted the generator (was a CD-ROM drive motor) by adding the Joule Thief to the back, all I have to do is spin the shaft gently and the LED lights up brightly.  It’s a big difference;

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