leosedf's blog
Electronics blog
Saturday, July 6, 2013
Led drivers, Joule thief
I made a few boards of joule thief's, they can be used to light up a white led with a 1,5V battery (or even less).
Here are a few pics.
They are pretty small and can fit inside small DIY flashlights etc.
http://www.ebay.com/itm/161080170207?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
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