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.” ...

We have all had difficulty testing diodes in-circuit. Most DMM’s have a diode Vf function that measures forward drop, but what is the normal voltage drop? Analog VOM’s attempt to measure resistance of ...

Welcome back to our Tech Tip series! Today, we’ll review one of the most essential tools in every toolbox, a multimeter.

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 ...

A 240-volt service powers heavy-duty appliances like ovens, air conditioners, water heaters and electric dryers. If something goes wrong in that panel, it may cause those systems to fail, damage the ...

Branch circuit wiring problems lead to more residential electrical fires than any other single cause. Hidden trouble inside a branch circuit can also lead to electrocutions and the failure of ...

A multimeter is something every RVer should carry in their RV’s toolkit. Multimeters come in either analog or digital versions and can be used for a vast array of electrical tests and repairs. Analog ...

Whether you’re an electronics hobbyist or involved in cutting-edge new product design, it’s essential that you have the right test equipment. Most test benches contain a range of testing equipment ...