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 simple circuit was found in an English magazine that no longer exists, January 1970 issue. This...
Found in a 90’s Electronic Design, this circuit generates stable signals in frequency given by the...
This circuit was found in Philips documentation from 1965. No information was given about the...