Just pulled a 70 satellite convertible out of a very long term storage. The car hasn’t really been driven since the mid 70’s except for a spin around the block here and there. The lights flicker when the car is running but are fine when it’s not running. When running, the ammeter shows a normal charge, but will go to a quick slight discharge and back to a charge. The flickering seams to be periodic occurring every second or two.

Any suggestions on where to start?