This squelch circuit is placed at the input of the single receiver audio amplifier stage. Its purpose is to silence background noise. The circuit is from an 80's documentation.
This circuit, found in a 1994 documentation, uses 20 A 2N5448 triacs or equivalent and should be...
This circuit was obtained in an Argentine publication in 1976. It consists of a series voltage...
This switched DC / DC converter operates at a frequency of 6 kHz and its output is only a few tens...