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ESR meter – part 2

Transformer, originally uploaded by Black Heart Industries. Recently a friend, that works in a photo lab, gave me a box full of disposable camera flash units. Wasn’t sure what I was going to do with...

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ESR meter – part 3

ESR meter board, originally uploaded by Black Heart Industries. I got my parts in the mail today. The electronics are almost done. The board is something I’ve had around forever. Removed the few...

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