Luckily, there’s a fully featured free and open source circuit simulation software called Qucs (Quite Universal Circuit Simulator), released under the GPL, that offers a decent alternative to ...

Guess I wasn’t as good of a girl last year as I thought I was — Santa skunked me with a broken toy in my stocking. This little $7.95 gizmo called a Battery Eater made by Kikkerland is just the thing ...

That’s the reason for the vast versions of SPICE available now decades after the original was released, not all of which are as open or free as we might like. Qucs is a GPL circuit simulator.

As with many inventions, two people had the idea for an integrated circuit at almost the same time. Transistors had become commonplace in everything from radios to phones to computers, and now ...

Electricity will only travel around a circuit that is complete. When a switch is open (off), there is a gap in the circuit. Electricity cannot travel around it and a components in the circuit will ...