The purpose of this circuit is to limit noise peaks on a radio receiver. The circuit is from an 80's documentation. The diode is commonly used and the circuit is applied to a receiver IF stage.
In the figure we have two possible configurations for multivibrators with relay. The idea comes...
This circuit serves to isolate analog signals, for example, audio signals in a secure link...
We found this circuit in an old English documentation. Its purpose is to synchronize circuits. The...