An electrical relay is a type of heavy-duty, remote-control switch able to handle high-current accessories, yet capable of being actuated by substantially less current. Relays install between the ...

Why bother? Even a very large pump uses only a few watts during normal operation. The manufactor specs are just startup. On the rare occasions I turn off the comp, I leave it going. I'd be afraid the ...

Edison was right; direct current is better than alternating current. Tesla and Westinghouse won the current wars, because it was easy to transform into different voltages without electronics, and they ...

A DC-DC converter allows elevation of an input dc voltage making it twice on its output. This is a useful innovation for devices that use DC power supply that is made twice as its input dc voltage.