[joeypoconos]

Cutout to terminal box, terminal box to dash and coil to terminal box wiring arrived today. I previously replaced the old terminal box, it was completely shot. Installed wiring. Prior to checking voltage, moved third brush upward to end of its travel.
At high idle 8 volts (starter, cutout battery side, battery, terminal box posts). 8.2 volts at armature side of cutout. Amp gauge +2 lights off, -10 lights on.
Let car run at fast idle until the canary in my garage died. No change or fluctuation in voltage, no change in amp reading.
Moved third brush down half way, amp gauge still at +2/-10, no change in voltage.
Moved third brush to end of downward travel. No change in amp reading, voltage 8.2.
Backed idle down, set brush upwards, voltage 6.3
I guess an optimist would consider the above readings a plus. At least the voltage did not peak at 10 as previously reported.
Next - change out amp gauge and have generator tested.