Ars is a place on the Internet where people have opinions (I know, I repeat myself). For some reason I was wondering why decora switches were invented and while looking at that I found many people who ...

A device that opens and closes an electric circuit. It uses a lever that is moved up and down; a light switch on the wall being a common example. Early computers, especially mainframes, often had many ...

We all have too much stock of one component or another. Maybe you have more audio pots than you know what to do with, or maybe it’s zener diodes. For [technologyguy], that thing is a pile of toggle ...