Before LEDs became cheap enough to be ubiquitous, flip-card displays were about the only way to get a digital clock. These entirely electromechanical devices had their own charm, and they have a ...

This circuit shows how a 4017 CMOS decade counter can be used to build a timer circuit. Push-button S1 will discharge capacitor C1 through resistor R2. This circuit shows how a 4017 CMOS decade ...

Flip clocks: they were cool long before Bill Murray was slapping one repeatedly in Groundhog Day, they were cool in 1993, and they’re still cool now. If you can’t find one on the secondhand market, ...

Before LCDs and LEDs became cheap enough to add to nearly any device, mechanical flap displays were used in large-scale signage and bedside alarm clocks for improved legibility. Shinsaku Hiura has ...

We’ve seen alarm clocks that you turn off by chasing them across the room, sticking a toothbrush in them or punching in a code in another room, but Lexon’s new Flip offers yet another alternative – ...

I’ve been through a lot of time-telling devices in my years. My dad made sure I could read an analog watch as soon as I could put one on my wrist, and I think I’ll always have some sort of sentimental ...