Wrong Alternator?

Thanks, I really appreciate it. Regarding A. and B. bench test, I did that. The two rings are not connected, no continuity between them. Did not check the rotor windings, but ordered a new alternator. Well, a back up Alternator is definitely on my list. Where can you get quality spare parts or is there someone how does good repairs? I am sure you are the man :). I would like to keep the original Alternator.

Thanks, Wolfgang

:thankyou: