Alright, a little basic info from my Haynes manual.
It says 12.5 volts at idle and 14.5 at 4000 rpm's. Voltage at the Alternator connector at 4000 rpm's should be 60 or 70 volts ac... if "much less" check the alternator.
It goes on to say that there are no checks for the Regulator/rectifier, if possible replace it with a known good one.
No real specs on the alternator windings except that they should be a "low" resistance reading between all terminals and that none should have continuity to ground.
That's pretty much it for Mr Haynes.. hope some of it helps.
