The transistor is the unsung hero of modern life — powering everything from smartphones to satellites. But how did it begin? This video traces the fascinating origin of the transistor, the minds that ...

For switching high-powered loads from a microcontroller, or for switching AC loads in general, most of us will reach into the parts bin and pull out a generic relay of some sort. Relays are ...

Although jet engines are theoretically quite simple devices, in reality they tread a fine line between working as intended ...

The Neoteck 3-in-1 pen multimeter is a great choice for DIYers and amateur tinkerers, especially at its price.

Using the ATX 9801 is easy -- plug one end into a mains outlet, and it acts like a short extension lead with a digital display. The socket on the front accepts pretty much every power plug worldwide, ...