This circuit was found in a Japanese publication from the 1960s. It uses germanium transistors and is powered by a voltage of 22.5 V. The circuit includes the erasure oscillator.
This mixer configuration with the 741 operational amplifier can be found on several other circuits in...
Touching the sensor with your fingers, this circuit produces a machine gun sound. The circuit must...
This 13.8 V power supply with 10 A was found in a 1997 documentation. It is intended for the...