ON/OFF power control with flip/flop-free, debounced push ON push OFF toggling, power-on reset, and a low parts count.

There seems to be nothing a 555 can’t do. We’ve seen it before, but [electronzapdotcom] reminds us you can use a 555 and a few parts to make a reasonable touch switch in this video, ...

The venerable Stephen Woodward recently published the design idea (DI) “Flip ON flop OFF” that converts a momentary push button to a classic push-on, push-off switch. Figure 1 is an attempt to go ...

It’s the flip-flop, and while its inventors ... signal that causes the first triode to switch off and the second to conduct. The Eccles-Jordan circuit had been born. The second half of the ...