This circuit was found in an American documentation from the 90's. It switches a continuous voltage obtaining an AC voltage at the output of approximately 1 kHz.
This circuit shows how to simulate a high-performance diode with two diodes. The circuit is from a...
We find this circuit in an American 1980s documentation. The circuit can still be assembled...
This 80s signal follower makes use of an audio amplifier of the era. The circuit can be adapted to...