" From: Greg Taylor <amundaza@xxxxxxxxx> " " I have a technical question about the electrical system on my 1989 Jeep Grand " Wagoneer. I want to know if the power feed/output on the alternator is LIVE " all the time (directly connected to battery) or if it only has juice to/from it " when the ignition is on and engine running. i believe it's always hot, protected from back-discharge by the alt diodes. " I have built a home-made hydrogen generator (which works!) and have installed " it on my Jeep. I WAS running juice to it from the additional lead at the " ignition coil, but it's drawing too much juice away from the coil, so that the " coil is not fully charging under load. When I hammer the gas peddle down, the " engine stutters. Under normal load it's fine. After unhooking the Hydrogen " unit, the ignition coil functions properly under load. " " So, basically, I am looking for a good place under the hood, to hard wire the " Hydrogen unit, so that it is hooked into and Ignition ON wire and OFF when the " Jeep isn't running. I thought that the alternator would be the best place for " this, pending the wire isn't HOT when the ignition is off. trace the harness back from the coil beyond the ballast resistor or resistance wire, to an ignition-switched 12v. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought