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.” ...

Not knowing how to troubleshoot electrical issues is a death sentence for any DIYer’s bank account. Your only other option is a wild goose chase by throwing money at your car until the problem’s fixed ...

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 ...

We may receive a commission on purchases made from links. Electrical diagnostic work is one of the most challenging parts of automotive repair. It can be incredibly daunting for beginners or DIY ...

The alternator is responsible for charging the car battery and powering all the car's onboard network consumers. If it fails or is unstable, the battery will either not be charged or start discharging ...

Car batteries don’t just die. Well, they will if you leave them for long enough. but not just over the course of a few hours or even just a day or two. Finding your car has a dead battery after it was ...

We may receive a commission on purchases made from links. There's nothing more annoying than checking the time on your wall clock and realizing the battery's already dead, or plopping down on your ...

Power transformers are often the main source of common-mode noise in isolated switching power converters. Why? Because inside the transformer, the windings on the primary and secondary sides of the ...