Charging system question. Drove my car last night. Started and ran fine. Got home, headlights were VERY dim, turn signals quit and once I shut the car off, it would not start again (click, click rat-a-tat). When the car was running, revving the engine did not affect the brightness of the lights. Alternator dead? Voltage regulator? Battery? If the charging system is working, once the car is started, shouldn’t it be able to stay running without the battery?

What are my choices for getting a correct looking alternator for my AAR if that is the problem? Thoughts appreciated!!