This circuit was obtained from an American documentation from the 90's. Inductors are critical components of the circuit. The output is 120 V sinusoidal.
The circuit in the figure is based on an LM101A; diodes can be replaced with equivalents. The...
This circuit, with magnetic sensor, uses an operational amplifier of the time. The circuit is from...
Found in a 90s Popular Electronics, this circuit checks if a remote-control transmitter is...