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.
This circuit regulates the output voltage of a 12 V source or other value, given by the zener. The...
This is one of the many versions of amplifiers with LM386. This was achieved in an old publication (1981). The...
We found this circuit in a 1989 publication. Its purpose is to produce noise in the VHF or UHF...