This circuit was found in a 1967s Motorola documentation. The circuit regulates the voltage of an alternator for automotive use, for bench applications.
This conventional window detector circuit was found in a 1995 documentation. The trigger points, that...
Found in a Radio Electronics store from the 90s, this circuit is for cars of that era. The circuit...
This old circuit excites lamps but can be modified to excite high-power LEDs or other loads...