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  • Stepped Timer (ART726E)
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Circuit Bench

  • Headphone Amplifier LM386 (CB13672E)

      We found this circuit, quite common in technical publications, in a 1978 documentation. The...

  • Electrometer (CB18625E)

      This circuit can detect static charges or extremely low voltages. The circuit was found in ancient...

  • AFSK Modulator (CB21759E)

      This circuit using only transistors was found in documentation from 1977. The frequency is 4250...

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