This circuit was found in an old GE SCR manual. The SCR must be in accordance with the relay and transformer as well.
This sensitive motion sensor with inductive sensor was found in a 90s Elektor. The circuit uses only...
Suggested by Amperex in a 1968 documentation, this circuit is based on TAA370, an integrated circuit...
This filter, found in an old manual, has characteristics of reduced overvoltage given by the graph...