The Harbor Freight MADDOX back-probe kit lets DIYers test automotive sensors safely. Just insert between wire and insulation, ...

The alternator is a device that keeps your car’s electrical system running once the engine is on. It’s essentially a small generator that converts mechanical energy into electricity, bolted to the ...

John Bisset explains how a borescope saved engineer Todd Dixon 10 hours of work by helping him identify a failure in his ...

The best way to tell if you’re getting what you’re paying for each month is by running a simple internet speed test. We'll show you how.

With the frequent onslaught of typhoon season and heavy rain, the risk of vehicles getting submerged has surged, making ...

In part 1, we examined the operation of power supply supervisory ICs that can detect when the supply voltage is too low, and ...

A light switch faceplate that’s warm to the touch is a sign of an overloaded circuit. If you have a lighting fixture with ...

Over on YouTube our hacker [VIP Love Secretary] shows us how to make a simple MOSFET tester. This is a really neat, useful, elegant, and simple hack, but the video is kind of terrible. We found ...

This universal battery tester couldn't be easier to use, and is a great way to determine which ones are still good.