This is an improved version of Anthony Smith’s designs for a latch on/latch off switch (see the whole series below). The new design switches a 120VAC load, and includes several much-needed details on ...

The ubiquitous 555 has yet another airing with this bistable using a simple push-button to provide a push-on, push-off action. It uses the same principle of the stored charge in a capacitor taking a ...

Push-button start has moved quickly from luxury extra to everyday standard, yet many drivers still treat it as a simple on/off switch. By 2018, about 62% of cars sold in the U.S. already came with ...