Found physics: joule thief

Waifer X

Joule thief (wki.pe/Joule_thief), built with Radio Shack parts and a mint tin, circuit diagram based on Make magazine's how-to tutorial (makezine.com/2007/11/02/make-a-joule-thief-weeken-1/).

1 comment:

Watson aName said...

My version of a LED light in an Altoids tin. A Joule Thief is not needed when three AA cells are used. Just connect a 33 ohm resistor in series with each LED.