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 converts pulse frequency to current, which is indicated on an analog instrument. The...
Found in an Electronic Engineering from the 80's, this circuit makes use of components of the...
With the configuration shown in the figure, a common 12 V lamp lights up when light no longer...