I ran the car and used a voltmeter to see the voltage across the
battery with car on and off.
It is around 8-9Volts off and shy of 12Volts when I revv it to 3000
RPM or so.
So, I guess the Voltage regulator and the brushes are the easy thing
to do for now. All connectors seems to be good enough. I have isolated
the battery terminals and no build up or corrosion is noticeable
there.
I hope that the alternator is not becoming bad itself. How do I test
for that?
fcpgroton has the regulator for $24 and the rebuilt alternator for
$150. So, I hope I can get away with just the regulator.