When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

It is a device used to manage electrical flow within a system. In air conditioning units, it regulates the connection between various components, like compressors and fans, to control cooling and ...

Learn how to test a transformer: insulation resistance, TTR, winding resistance, polarity, continuity, and dielectric checks.

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.” ...

When your car doesn’t start, often a low or dead battery is the culprit. Unfortunately, most vehicle owners do not check their battery until it fails. As preventative maintenance, the suggested best ...

As semiconductor packages grow more complex, conventional continuity tests are no longer adequate for screening out open circuits and pin-to-pin shorts. Most test methods were designed for devices ...