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Recent content by systemloc

  1. S

    What makes a transformer whine?

    I'm slowly teaching myself to build a flyback SMPS from the ground up, including the transformer. I mostly use scrap parts I salvage. In my latest experiment, I built a test circuit similar to Ronald Dekker's: From: https://www.dos4ever.com/flyback/flyback.html#ind2 I used an LM556, with...

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