Tell me about your ballast resistor failure.

cruiser said
Guys: I'm interested in learning how many of you have had a ballast resistor failure in your ride. What happened when it failed? Did everything die, or just the ignition system? How long did your ballast last before it failed. How did you know it failed? Any and all inputs welcomed. Thanks!

My '74 Valiant suddenly died last month 3 times in a distance of like 2 miles or so. Started back up again but it died 1min after again.
She started right up when the engine was cold.
I think it might be the ballast resistor because... I mean look at it. It also still has the OEM part number so I think it is time to replace it.