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 amplifier for recording heads was found in a Radio Electronics from September 1963. The...
A negative floating regulator capable of supplying an output voltage of -100 V with regulation of 20 mV for...
This circuit allows controlling a LASER pointer with an input logic signal. R has 10 ohm for 3 V...