This 25 W phase photo control was found in a 1965 General Electric publication. The circuit uses a LASCR which is an unusual SCR photo today.
We found this circuit in a 2003 documentation. The purpose is to make the player choose one or two...
Output stages driving relays or other loads are plugged to the outputs of a 4017. The trigger...
This simple bridge unbalances according to the resistance variation in the electrodes. The circuit is...