Are zap stoppers really needed on alternators? These aftermkt devices claim to
portect alt. diodes against damage from transients. I can't imagine that
engineers at places like Motorola would design alternators that needed external
aftermarket devices to effectively protect them from transients. I have never
blown up an alternator from switching it in and out of a load, although people
say this is often fatal to the diodes. I have run alternators open circuit (no
load at all) with no problems. Was I just lucky?