[rokndad]

Thanks Jim and Ron. So I guess that sort of solves my mystery. I now just have to find a C5TF-10316-A (or C5AZ) regulator rated for 55 amps that has the silver and black cover. So far, I've run into block walls and have seen only the ones with the yellow lettering. Anyone know out there where one of these silver and black beasts might be found?