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 didactic circuit was found in a 2001 documentation. It automatically counts in an increasing and...
To invert the rotation of a motor by changing the levels of an Arduino output or another...
This 1995 circuit directly controls a triac. The triac, in turn, controls the external load. Times...