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

Circuit Bench

  • Low Impedance Microphone (CB12360E)

      We can use this circuit to connect low impedance microphones and even small speakers used as a...

  • Timer Using a UJT (CB478)

    This circuit can be adjusted to time timer intervals up to1 hour using a 2,200 µF capacitor and a...

  • Bass and Treble Filter (CB19812E)

      This separator filter is from an old publication. The capacitor can have 10 to 47 uF of the...

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