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Circuit Bench

  • Sine and Cosine Audio Generator (CB21337E)

      Found in an old American publication, this circuit is intended for audio experiments. The...

  • Tunnel diode trigger (CB21468E)

      This circuit was taken from old American documentation. With it, it is possible to generate pulses...

  • Automotive Alarm without Sensors (CB19105E)

      This circuit detects the small variation in the car battery voltage that occurs when the door is...

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