In this circuit of an old American documentation, the input impedance is the same as the output impedance. The circuit has a sensitivity of 1 Vpp at 75 ohms.
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...