Dan Sullivan, owner of Sullivan Training Systems and an electrical diagnostics trainer, calls for a change to electrical training for technicians.

Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides ...

We may receive a commission on purchases made from links. If you've had to replace the battery in an Apple AirTag, you've seen a CR2032 battery up close. The performance of the 3-volt CR2032 lithium ...

In our previous article, ‘Is your equipment GS38 compliant?’, we looked at what it means to be HSE GS38 compliant and why it is important to select measuring equipment that is suitable and rated for ...

Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

Car batteries can sometimes catch you off guard, leaving you stranded when you need them most. But it doesn't have to be this way. There are things you can do to extend your car battery's lifespan, ...

We may receive a commission on purchases made from links. One tool you'll find stashed in all the best electrician's tool backpacks is a multimeter. Most modern multimeters are of the digital variety, ...

A capacitor is an essential component in many electrical and electronic circuits. It stores and releases electrical energy when needed, helping regulate voltage and maintain power stability. Over time ...

With the StarTech.com USB-C Power Tester, you can easily look for charging problems in your setup. It’s a quick and easy way to ensure your devices are getting all the power they’re supposed to. I ...

We will refer to these article collections as “Breadboards,” “Tools,” and “Components” for short. We’re assuming that we are in possession of a full-size breadboard and associated wires (Components, ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Rachel Cericola Rachel Cericola is a writer covering smart home. In addition ...