Electronics

This simple modification will give you more light for less power, and that can be very useful for portable devices like torches and camping lanterns.
Read more »

I recently decided to build a new, low power, general purpose computer to take over from the high speed, high power, electricity munching behemoth I used for playing games. It just didn’t make sense to have a super powerful computer running all of the time, when I just needed it to check my email...
Read more »

Dirt on the tip of a soldering iron makes it more difficult to solder. You could go out and buy a professional tip cleaner from an electronics store, but there is a much cheaper and easier alternative. Just take three metal scouring pads, and pop them inside an empty tuna can. Use this to scrub...
Read more »

If you need to activate multiple PC power supplies from a single switch, you can use a relay to trip the power signal on a remote supply. Just connect your relay coil to a suitable power connector on the  original supply, and connect the green/black wires to the switch side of the relay. When...
Read more »

A computer power supply can kick out an impressive amount of power for it’s size. Even a low end supply can usually provide around 15 amps at 12 volts. These little easy to make doohickeys mean that you can convert a spare PC power supply into a handy bench power supply that provides a...
Read more »