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 ...

[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.

The PeakTech P1073 is a €25 smart multimeter with functions like True RMS voltage, current, resistance, capacitance, ...

If your car battery frequently drains without any apparent cause, it's probably down to faulty wiring or a component drawing ...

Explore the world of RF directional couplers and their role in precise microwave measurements for engineers and designers.

Explore the different phone chargers and their radiated emissions. Discover how they compare in performance and output.

Solenoids are all over our homes and cars, helping us perform all manner of important tasks. How do solenoids work, and where ...

leagend today announced the launch of three new additions to its industry-leading battery-tester portfolio: leagend BA4000, leagend BA1000 and leagend BA2000 Arthur Kingsly SHENZHEN LEAGEND ...

When state-funded education ends up palmed off onto a jumped-up Tamagotchi, those with the resources to make the choice will ...

It’s then a matter of completing the electrical circuit from the gauge to ground ... An ammeter shows the rate of charge, while a voltmeter registers how much voltage is at the battery.