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Circuit Bench

  • Operational Amplifier Gain 10 (MSB015E)

    This is the basic operational amplifier configuration for gain 10. R2 can be changed to other...

  • Window comparator with lamps (CB5077E)

           Instead of LED bulbs, LEDs with a series 470 ohm 1k resistor can be used in this 80's circuit....

  • Coded Switch using Reed Switches (CB3974E)

          This circuit is from a1970 documentation. R1 may have 10k and P1 47k. The transistors can be BC558...

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