Alternator/ Voltage Regulator woes....

[Michael LaRosa <76761.1444@CompuServe.COM>]

Ok here's the scoop,  this is the continuing saga
of the 89 100 Wagon...........

I've since replaced the battery and the alternator belt.

The belt is plenty tight and the battery is now 2 weeks old.

Symptoms:

Ove the last weeks when the A/C is on at a stop light idling the 
voltage gage has been dropping lower and lower everyday.  

It is now to the point where the alternator and brake lights come on
at a light. The gage says 12v if your lucky.

When driving at night the dash lights and head lights flicker at a somewhat
steady rate of 1 second bright, 1 second dim.....

The battery is new, the voltage gage says 13 + volts when cruising...
while the flickering is going on....

Am I still looking at a bad alternator or more likely a bad voltage regulator ?

Is the regulator part of the alternator these days ?  last time I messed with
this
stuff was on a 1970 chevy :-)  much easier to fix..... :-)

trying to get this thing fixed today everybody so If anybody can help quickly
I'd appreciate it. 

Thanks in advance :-)

Mike L.

90 V8 
89 100 Wagon