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.
The crystal in this circuit is 32.758 kHz used in TV. The circuit was obtained in an English...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This very low current circuit was found in the April 1995 issue of Electronics Now magazine. The...