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Circuit Bench

  • Beta Meter for Transistors (CB3874E)

          This circuit uses a common multimeter on the voltage scale to measure the beta gain of a...

  • Two-Phase Oscillator (CB117)

    The circuit shown here uses a 4047 to produce three signals whose frequencies are determined by C...

  • IR Modulated Transmitter (CB856E)

    This circuit produces a IR beam with a frequency adjusted by the 100k pot. The circuit can be used in...

Latest

  • DPDT Audio Switch (T1182E)
  • Capacitor test with (T1738E)
  • 1940s commercial receiver (T1618E)
  • Neon lamp as sensor (T1319E)

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