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 power supply can sources currents up to 22 A to a load. Voltage is 12 V and the transistor...
For signals up to about 500 kHz modulated in amplitude and transmitted by the power network, the...
This circuit was obtained in a European documentation of the 80's. The circuit uses common...