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  • Stepped Timer (ART726E)
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Circuit Bench

  • Tremulo circuit (CB10115E)

      This circuit was found in a National Semiconductor manual from the 1970s, appearing in articles and on...

  • Pierce Oscillator (CB9650E)

      This circuit was obtained in an American documentation from the 80's. The transistors can be...

  • Logic Level Indicator (CB21517E)

      In this version from the 60s, the indicator is a light bulb, but the circuit can be modernized with the...

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