Test meters used to just provide the basics: voltage, current, and resistance. Thanks to solid-state circuitry, though, today's instruments are packed with several features the typical electrician may ...

A few months ago a personal computer trade magazine reviewed surge voltage protective power strips for home use. The article offered an explanation of what “120 volts RMS” power (what we typically ...

On infrequent occasions, I am asked to design a circuit to measure the RMS value of a current or voltage for some kind of power measurement. Since the work I do is hardly unique, I thought some of you ...