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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Oscilloscope Scanning (CB20119E)
This circuit was found in an old American documentation. Its purpose is a proportional scanning signal...
Anti Sleep For Drivers (CB14781E)
This circuit emits a loud sound in a headset when the driver who wears it nods while being in a...
Impedance Adapter (CB18282E)
This amplifier stage was found in a 1956 Sylvania manual and has an unusual configuration with a...