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.” ...

The power supply on a computer transforms the alternating current from the wall outlet into a direct current flow that the computer's components can use. Testing the DC voltage output of the power ...

Before we go forward and run some of the tests that we are going to see hereinafter, let us check a few of the symptoms to understand if those tests are worth doing. We have mentioned some symptoms ...

Your MacBook isn’t charging right and you can’t figure it where the problem is? Plugable’s USBC-VAmeter3 can help. Connect it to the power cable running to your Mac, iPad or iPhone to see the voltage, ...

Not knowing how to troubleshoot electrical issues is a death sentence for any DIYer’s bank account. Your only other option is a wild goose chase by throwing money at your car until the problem’s fixed ...

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 ...

Power supplies in data centers that measure the input power in real time and report the measurement to the host are conducting what’s known as electrical metering (e-metering). An e-meter has become a ...