Synchronized switch (CB8253E)

Synchronized key. This circuit was found in a 1966 General Electric documentation. Modern equivalent components can be used.

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Output Limited Oscillator (CB4176E)
The purpose of the diode in this oscillator circuit is to limit the amplitude of the output...
Triggered buzzer (CB8972E)
This circuit can be used as a shield as long as the power is supplied with voltage equal to that...
Remote Control Tester (CB25561E)
This circuit checks the infrared emission of a common remote control. We found it in the March 1993...