Extending Woodward's original "Flip ON Flop OFF" for AC voltages, switching power ON and OFF using a pushbutton or a ...

This circuit uses electromechanical relays to retain its state indefinitely, even when power is off. ... Here's a flip-flop circuit that remembers its state indefinitely when power is off.

Simple touch switch circuit with 4011 – source. The circuit as you can see from its diagram is very simple and only uses 8 components. The heart of the circuit is the IC CD 4011 that is connected as a ...

Relay-Based ON/OFF Flip-Flop Remembers State During Power Failure (.PDF Download) April 13, 2018 Many varieties of ON/OFF control circuits use some form of flip-flop that responds to a pushbutton ...