This circuit can be used with receivers to attenuate signals that may cause interference. The circuit is a 70s documentation for amateurs.
This clipper or limiter circuit limits the amplitude of AM or FM audio signals. The diodes are...
Varicap or varactor is the basic component used in this circuit of an American 80's documentation. The...
This circuit is from the 1990 Motorola Linear Databook. The circuit can be implemented with other...