Thanks guys for the responses. First, my son in law got his guy to check it for me. It turned out to be a bad terminal connection. Evedently an easy fix. Second, there is no division of Motorola still around that has the info. They are strictly communications now and according to the person at "corporate" that I talked to, that part of Motorola was defunked many years ago. Third, I did see some of those tractor alternators, also some marine applications that looked like they might work. It is externally regulated and you just can't go and get one like that near as I can tell. As I said above it is fixed so calamity averted. Calamity being kool April nights car show 27-28-29 in Redding CA this month. I have had my registration card for a while and am a little excited for the show. Largest one I've entered so far with the car and farthest away, about 160 one way. Longest trip so far has been about 160 round trip with a few hours stop half way. Anyway, this is long winded enough, thanks again guys.