Phase Detector 7400 (CB22427E)

This circuit detects the phase of a signal. As it is a TTL circuit, it must be powered by a voltage of 5 V.

Damped tone generator (CB8842E)
This circuit uses an unusual electromechanical component: a mechanical blade resonator. The...
Transistor Amplifier (CB18859E)
This circuit from a Japanese publication in 1968 uses germanium transistors from the time like the...
Operational power VCO (CB8779E)
Found in a 90s Electronic Design, this circuit can provide a relatively high-power output. The basic...