This circuit was found in an American 1980s documentation. The transistorized step is the receiver's last IF and the diode is the receiver's existing detector.
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...