Learn how to test a diode for proper functionality using a multimeter, a battery, and some wires. Find out how to set up, test forward and reverse bias, interpret results, and troubleshoot.

A multimeter is a handheld digital or analog device used to measure electrical voltage, current, and resistance. It is an essential tool for anyone working with electronics and is commonly used to ...

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

Step 5: Test the voltage with the multimeter Place the black probe of the multimeter to the black pin of the 24-pin ATX connector. Then, place the red probe on one of the yellow wires. The yellow wire ...

This video covers the essential steps to properly test a car's alternator and diagnose common alternator issues. The guide ...

For all of you who have a multimeter thrown in a drawer or toolbox but don’t know how to use it, these instructions will help in your search for missing voltage.

How to Check the Power Supply With a Multimeter. The power supply in your computer manages all of the power required to run each component of your computer. When this critical component begins to ...

To find a bad transistor in curcuit, you check the forward current in the diodes. It takes a bit of practice because it is in curcuit. But with the tansistor you are talking open or short. (check ...