[Early_S_Man]

Ryan,

Worn-out brushes can cause dropouts if they lose contact with the slip rings ... but it also could be the VR or a grounding problem at the relay/regulator panel! I wouldn't make the assumption that the alternator needs replacement due to aging alone, though!

The dim-glow alternator warning lamp problem is unlrelated, as that is a classic problem of buildup of Voltage drops over time in the many connections between instrument panel and alternator ...