Hi, i'm trying to measure amps with my Fluke 88V/A, but already blew a fuse by doing the test same way we test voltage which i came about to know that's the wrong way to do it,i never had the need of measureing amps so i forgot what i learned about it, i was trying to measure amps of an old AC tv tube transformer input 120, and 3 outputs 140v,20v,15v, so i am using this transformer as an isolation transformer to connect the equipment as a safty proctection form the line service, anyway i'm trying to find out how many amps is it rated, any help would be wellcome thanks in advance.