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.” ...

Dialing in your aperture, shutter speed and ISO doesn't have to be a game of guesswork when using manual mode. If you're consistently getting overly dark or light photos, you may just need to learn ...

Modern digital multimeters (DMMs) are user-friendly, accurate, and safe — when used correctly! Reading voltage is simple, but measurements must be properly interpreted. With a clamp-on DMM, accurate ...