Alright, put in the new brushes, took the thing to the local shop... their machine said it was all good. Shoehorned it back into the car and fired it up...
I still get the charge light flickering, and the tach hovers around
7000-7500 although the engine isn't going that fast (actually around 2000-2500).Am I missing some other critical component of the chargine system somewhere in this car? It's not the ALT fuse; that checks fine, and besides, it doubles with the fuel pump and the thing would run long at all if that was gone.