Many power stations show you remaining battery life on their displays, but that’s only useful once you’ve got everything plugged in.

[Debraj] needed a simple signal generator for a project he was working on, but didn’t have one handy. He found that the easiest and cheapest way to get clean, reliable signaling was by using something ...

Your home generator can power plenty of devices, but there are some items you should keep unplugged to avoid damage, overloads, or tripping the system.

This two-transistor white noise generator has a surprising feature – about 30dB more noise than the more traditional designs. Q1 and Q2 can be any small-signal transistors with a beta of up to 400.

Hydrogen! It’s a highly flammable gas that seems way too cool to be easy to come by. And yet, it’s actually trivial to make it out of water if you know how. [Maciej Nowak] has shown us how to do just ...

In LCD backlight applications, a dc-to-ac inverter drives cold-cathode fluorescent lamps. The inverter's input comes from the display's power supply. Currently, it spans from 12 to 18 V. Pulse-width ...

The Simple Sharing Buttons Generator is a little innovation for a problem you might not even have known your site had. The Simple Sharing Button Generator by Stefan Bohacek. As often as that is the ...