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  • Stepped Timer (ART726E)
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Circuit Bench

  • Super Ear (CB20418E)

      This small amplifier with 3 transistors can be used both as a stethoscope and as a spy. The...

  • Automatic Level Control (CB26281E)

      This ALG or automatic level control of audio signals was obtained from a 1989 RF Communications Handbook...

  • AC voltage control (CB8904E)

           This circuit was found in a 90s Hands On Electronics. The semiconductor component is a Triac of...

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