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Texas Instruments

1 Post authored by: rsc
I have been building power supplies since I was 11 year old.  The first was when my father's friend gave me a few boxes of ham radio parts he didn't want when he moved to Florida. I had dozens of vacuum tubes, and no way to light them up.  A trip to Radio Shack, and a few days reading up at the library later, I had a transformer plugged into the wall, and a bright tube filament at the other end. I remember blowing up many LEDs with a 9V battery before learning about current limiting ...