This circuit is from a factory manual from the 80s. The circuit can be implemented with more modern operationals. Capacitor C1 is a low leakage type. The power supply must be symmetrical.
This circuit was found in a Radio Electronics from October 1952. The circuit equalizes the sounds...
This circuit can function as a circuit breaker or current switch opening with a current according to...
The supply of this circuit can be done with voltages from 8 to 28 V and the maximum output current is...