Joule Thief Enhancement

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The Joule Thief circuit remains one of the favorite topics on electronic forums all over the Internet. If your goal is to get more light from your LED while using LESS energy, this ones for you.

Correction on the above schematic. A viewer has noticed the placement of the base leg of the transistor is in the wrong place for a 2N2222. He is correct. The transistor shown is actually a MJE181.
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