How to Test a Computer Power Supply Using a Voltmeter. The power supply on a computer transforms the alternating current from the wall outlet into a direct current flow that the computer's ...

After initially working to create a modernized replica of a Czechoslovakian 4-digit Metra M1T242 voltmeter, [Jaromir Sukuba] figured that while he was at it, he might as well create a voltmeter tha… ...

HD Electric Co. has launched its new Double Vision Dual Display Digital Voltmeter, a compact, high accuracy dual display voltmeter and phasing set with capacitive test point mode and peak hold. It can ...

Are you certain that your AC voltmeter is safe to measure an incoming 480V power feed? Sure, the manufacturer may rate the meter as good for “600VAC,” but is that sufficient? Let’s look closer at ...

You mentioned your voltmeter runs at about 15 volts most of the time. My guess is the gauge reads a shade high and is reporting a healthy maximum system voltage of 14.8 volts, which is the norm ...