Joule thief candle

This is a basic Joule thief circuit. It uses one AA (1.5) battery. When batteries are almost empty. Then there is actually still lot of energy. And it squeezes all energy out of it.

4 thoughts on “Joule thief candle

  1. These are unique anf really beautiful. Had you thought of doing an exhibition (when that’s possible)?

  2. Interesting idea indeed. I was wondering if the bottom plate is painted or oiled? Can you give some hints?

    1. Bottom plate is from oak. And processed with steel wool + vinegar solution. The longer the solution stands, the stronger it is. “wood aging” is the search phrase.

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