This circuit for powers up to 240 W was found in a 1967 RCA SCR manual. The SCR must be in accordance with the controlled load.
For experiments with ionization chambers and Geiger valves this circuit generates high voltage from...
This control allows to start or stop a motor up to 3 or 4 A with a low intensity signal. The...
The battery is charged by the photocell that keeps the low consumption beacon in the dark. The...