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Circuit Bench

  • Divide-by-3 Counter - 4018 (CB165E)

    To divide by an odd number‘ means not only the need for flip-flops, but some additional logic too. The...

  • 500 kHz to 500 MHz Amplifier (CB13388E)

      This circuit, from a 1975 technical documentation provides a gain of 14 dB at signals from 500 kHz to...

  • RF Comparator (CB22319E)

      This circuit was found in American documentation from the 60's. The transistors are made of...

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