You can actually see this by probing the battery with a voltmeter. Place the positive ... Galvanic corrosion is often ...

In a recent discussion I had with M.A.D. Enterprises' electrical wizard Mark Hamilton concerning the proper care and feeding of ammeters installed in classic musclecars, he pointed out that when ...

[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.