While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

We may receive a commission on purchases made from links. One tool you'll find stashed in all the best electrician's tool backpacks is a multimeter. Most modern multimeters are of the digital variety, ...

I'm upgrading to a Tyan Tiger MP, so I'm going to need a pretty beefy power supply. In my excitement, I bidded and won an eBay auction for what *might* be a 400 watt power supply. The guy selling ...