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.” ...

Every new camera sold today has some sort of light meter built in. Its purpose is to read the scene you’re composing and, if you’re shooting on the dreaded “Auto” mode, tell the camera how to ...

Q: I have a tenant who complained that a light fixture wouldn’t light. After I replaced the switch, the light still wouldn’t come on. I realized that all the bulbs were out. Anyway, is there a way to ...

Let's start with DC voltage, one of the simplest and most-used multimeter measurements. The DC voltage measurement is used to determine the difference in electrical potential between two points in a ...

RedShark Review: Slovenia’s Lumulabs is a small operation that develops the Lumu Power light meter, a hardware sensor combined with an iOS app. It has a fast-response silicon photo diode and true ...

How do you know if a resistor is correctly restricting the flow of electricity? Using a multimeter is an obvious answer. However, there is more to it than meets the eye. This article will explain what ...