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basic electronics

  1. sr13579

    How to find out if UJT 2N2646 is original or not?

    I bought two UJT (2N2646) before yesterday. I tried to make an oscillator but it was not working. There was a guy from FB who said it could be a duplicate (not original) one. It must be tested. How should I test if it works or not. I googled some and found about diode and resister testing. But...
  2. R

    Latest Video From RSD Academy: Current Limiting with a Linear Power Supply.

    I just posted my latest video on my linear power supply project. In it I spend a few minutes talking about the basics of current limiting. This video series is not about how to build the best power supply. It is about learning how components work together to make a useful circuit. When...

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