In the figure we have two circuits of limiters that provide the cut of the negative peaks of a signal. The circuit is from an 80's telecom documentation being adaptable on common receivers.
Frequency Indicator (CB6342E) This simple circuit was found in an Exar publication from the 1970s....
The configuration shown was found in an old American manual. The circuit can be made with modern...
I found this circuit in an English magazine from July 1982. The circuit is still viable because all...