Manlio,

If you are at sea and your voltage regulator dies and full current is being
sent to the field wire on the alternator you can make your own voltage
regulator by wiring a light socket into the field wire. The resistance of a
light bulb will reduce the current to the field and reduce the output of the
alternator. You can change the available current by putting different
wattage bulbs in the outlet and turn off the alternator by removing the
bulb.

Cheers

Ansley Sawyer
SV Pacem