Before you go to the (slight) hassle of removing the alternator and having it tested, do the wire test first. It's easy, free (relatively speaking) and only takes a few minutes at the most.
Since you've already had the regulator on and off, the connector should be easy to remove for testing.
One thing that you can be fairly certain is good is your fusible link at the starter relay where the battery's positive cable attaches. They're a safety device and will blow under the right circumstances. However, if yours was blown, nothing would work at all.
Since everything else works, that should be fine.
So, the only things left that could effect the charging system are:
1. Alternator not grounded through the engine to the rest of the system.
2. Yellow wire not getting power.
3. Radio noise supressor attached to the Yellow wire shorted out to ground.
4. Orange "Field" wire not connected properly or broken.
5. Fusible link in the alternator's charge wire blown. It's hidden under tape near the first connector a foot or two from the alternator.
6. Green w/red wire not coming on with the key. Could be the wire, could be the switch.
7 New regulator not functioning (happens all the time).
8 New alternator not functioning (not as often, but still happens).
9. Artesians
Good luck. Grab that volt meter and go to town.
Paul
