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  • Continuity Tester (MIN404E)
  • Capacitance Discharge of a Capacitor (MIN414E)
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Circuit Bench

  • Microphone Preamplifier (CB23956E)

      We found this circuit with JFETs in a Radio Electronics magazine from June 1969. The circuit has...

  • Intercom with old telephone (CB24582E)

      This “one channel” demonstration circuit was found in the April 1979 issue of Radio Electronics magazine....

  • SCR Flasher (CB23953E)

      We found this traditional flasher configuration in a June 1969 Radio Electronics magazine. SCRs...

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