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This week, Windell Oskay of Evil Mad Scientist Laboratories joins me to teach you how to make a super clever little circuit called the Joule Thief! The Joule Thief allows you to squeeze the life out of what most people think of as “dead” batteries!

We were inspired by Big Clive to make this project and it’s the perfect platform for a flashlight, book reading light, or really just something you should make to get more use out of your batteries!

Update: Windell posted more info and a detailed walk through of the toroid winding process. Check it out before you make it! – Link


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