charging system blues

batt new a week ago - batt good. checked wires at back of alt - none hot without key on. key on - black wire hot & the field with the two blue wires gets hot. single green on other field not hot. double blue wire at ballast hot with key on. bulkhead plug looks good outside & in - hot under the hood & inside things work. cranks & starts , lights... good ground at vr, checks were done w/a test light. went back with a meter & had batt volts at each check. i'm thinking "damn amp meters"