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Circuit Bench

  • 555 with direct relay drive (CB25499E)

      Relays up to 100 mA can be driven by the 555 with the recommended circuit. The circuit is from an...

  • VFO using a Varicap (CB411)

    This VFO (Variable Frequency Oscillator ) has the output frequency controlled by a potentiometer....

  • Lamp Control (CB25902E)This low-current control circuit has a lamp as a load, but can have other types of devices, such as a relay, thus forming a shield. img src="images/stories/bc/262004202025_173220_0001.png"

    Lamp Control (CB25902E) This low-current control circuit has a lamp as a load, but can have other...

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