The only thing you can fry on your alt is the diode, a easy test is to check your a/c voltage, put your volt meter on a/c volts put it on the battery and see if it reads a/c volts, should be 0
hooked the alt back up real quick to do this test, and it wouldn't stop on any given number. it read 33, 13, 5, 2, 33, 13, 5, 2, 33 etc in repetition. this was with engine not running Brian, is that right?