IF I were to test the alternator I would
1. Have a load - variable if possible.
2. An ammeter to show the output of alt.
3. Voltmeter to show voltage on output at varying load conditions.
IF the guy is wondering if it has internal or external regulator it seems to me he does not have any idea of what he has in front of him and therefore is unqualified ot do testing.
Dan Bentler
