Charging System Question

Nuthin. I got it fixed. Put a NOS old style regulator on it ant it's charging great.

I just told yall off the bat, I'm a dumbass with electrical and yet yall still turn it into a science project. I don't understand this ****. I need layman's terms ant it always goes sideways. But it's fixed and that's all that matters.
BS. Don't tell me you can't disconnect the green wire from the alternator and connect a multimeter that reads amps like this
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Thought I had a photo on the car.
But field current measurement is not complicated.

You can do it on the bench as well.
Ignore the mess. Grounded field alternator.
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1. Connect the alternator housing to ground. On the car that's already done by being mounted.
2. Set the multimeter. For this one it means plugging one of the leads into the 15 amp position and turning the dial.
3. Connect one lead of the the multimeter to the power and the other the alternator's field terminal.

Try to turn the pulley while taking the reading. Disconnect. Done.