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Latest

  • Stepped Timer (ART726E)
  • Electronic Circuit Breaker (ART727E)
  • Electronic Cockroach Killer (ART649E)
  • Two Projects with Ceramic Transducers (ART647E)

Circuit Bench

  • Magnetic combination lock (CB7245E)

           This circuit was found in a 1968 documentation. It makes use of both NO and NC reed-switches and small...

  • 100 V x 5 mA Voltage Regulator (CB835E)

    This high voltage regulator uses only two passive components. The output is 100 V, but replacing...

  • Two-Transistor MW Receiver (CB23974E)

      This circuit was found in an Argentine publication from the 1970s. The circuit can be assembled with...

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