Checking Your Ignition - How to Test a Ballast Resistor
If your classic car or vintage truck is acting up, knowing how to test a ballast resistor can save you a massive headache and a lot of unnecessary parts-swapping. It's one of those small, unassuming components that usually sits on the firewall, looking like a simple white ceramic block, but it plays a massive role in whether your engine stays running or dies ten minutes after you pull out of the driveway. ...