How to polarize a voltage regulator the right way
Knowing how to polarize a voltage regulator is one of those old-school mechanical skills that's becoming a bit of a lost art, especially if you're working on a classic car or an old tractor with a DC generator. If you've just replaced your generator or the regulator itself, or maybe your vehicle has been sitting in the barn for a decade, you can't just hook everything up and hope for the best. Without polarizing the system, you run a real risk of burning out your new parts the second you turn the key. It sounds intimidating—and the sparks might jump a little—but once you understand the "why" and the "how," it's a five-second job that saves you a lot of money and a massive headache. ...