A technician going at an appliance with a multimeter can seem like techno-wizardry, even if they're doing something as boring ...

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.

The power supply on a computer transforms the alternating current from the wall outlet into a direct current flow that the computer's components can use. Testing the DC voltage output of the power ...

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