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Circuit Bench

  • Triac Triggering with Transformer (CB24043E)

      This triac control circuit with transformer and unijunction transistor was found in the June 1970...

  • Heater Control (CB21369E)

      This circuit was found in an old GE manual. It uses a thermocouple as a sensor. The SCR must be in...

  • Mini amplifier (CB21958E)

      Found in a publication by Gernsback from 1960, this circuit makes use of germanium transistors of the time....

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