This electrolysis has nothing to do with getting rid of unwanted hair. It's a problem that can rot your car's cooling system ...

[Martin Lorton] has a vintage Harmon 4200B selective voltmeter that needed repair. He picked it up on eBay, and he knew it wasn’t working, but it was in good condition, especially for the price ...

A Bluetooth transmitter lets you play music from your devices in an older car, and usually adds USB charging, too. Pho ...

When I first thought about making a voltmeter, I wanted something small, easy to carry, and quick to use. I imagined it as a tool I could keep in my toolbox or use as part of a quick diagnostic kit.

Many basic function generators cannot measure output frequency or amplitude. First presented to the Elektor community in 2009, this module addresses that by displaying both on a two-line LCD. It also ...

Connect the Voltmeter: Simply connect the USB voltmeter to the USB port you want to test. The device will display the voltage, current, and power output of the port.

The voltmeter is the device used to measure voltage in devices. Voltmeters can be either analog or digital; the choice of one depends on your personal preferences and budget. The first thing to do ...

If you want to be on the safe side and find out how much power certain USB ports offer, there are many ways to find out. You can use an on-board Windows tool, an freeware tool, or a USB voltmeter. IDG ...

Browse 2,200+ voltmeter stock illustrations and vector graphics available royalty-free, or search for ammeter or volt meter to find more great stock images and vector art. ammeter volt meter voltage ...