In this design, the output is connected to the input of the gadget when you press the push button (PB) once ... This is an attractive alternative to bulkier ON/OFF switches for DC circuits. The ...

You know them, you love them, you take them for granted – they are single push button on/off ... switch on a piece of breadboard. He’s looking for someone to explain why the unstable circuit ...

A common theme in modern consumer electronics is having a power button that can be tapped to turn the device on, but needs to be held down when it’s time to shut it off. [R. Jayapal] had noticed ...

Or perhaps you just want to use a shiny modern push-button rather than a toggle ... the current being limited by R3. If the switch button becomes jammed down for any reason, the circuit will stay off, ...