Discover how to build a simple wireless power transfer system at home using readily available components like enameled copper ...

OMRON P6K surface-mount sockets designed to streamline the assembly and servicing of printed circuit board (PCB) relays.

Like many hackers, [Matthias Wandel] has a penchant for measuring the world around him, and quantifying the goings-on in his home is a bit of a hobby. And so when it came time to sense the current ...

An RC circuit in series with the coil allows full-current turn-on for reliable relay operation, then reduces the current to save power. Fellow engineer Sanjay R. Chendvankar of Mumbai, India, recently ...

To investigate the electrical realm of high-frequency and high-voltage, Tesla invented an apparatus that pushed the limits of electrical understanding. None of the circuit's typical components were ...

Carbon nanotubes have gotten fanfare for rebooting Moore's Law and possibly powering the next generation of space probes, but that's not all the versatile material can do. How about shocking nanotubes ...