-> CH> Bruce, the number given is from a 1978 Ford-made vehicle.  Those
-> CH> are pretty easy to wire up.  Simply use the regulator from most a
-> CH> Ford vehicle of that vintage.  If it fits mechanically, you
-> should CH> be fine. As the number indicates, it's a 70 ampere unit.
->
-> So it would seem that this alt is nothing special in the way of AMPs
-> or in the RPM at which charging occurs.  I was hoping for a unit that
-> would provide a substantial charge at idle speeds.
Nope, just a garden-variety alternator.  It should be fine for most
any "normal" use of a vehicle.  No megawatt stereo or mobile kilowatt
ham rig.  Even then it would probably be OK with careful use.
-> CH> The regulators have a terminal for the switched ignition voltage,
-> CH> and a lead to the field terminal on the regulator.  You don't
-> need CH> the others.  The regulator case does need to be grounded..
-> Of CH> course, the heavy lead on the alternator goes to the battery
-> (via
->  CH> the ammeter if you have one).
->
-> So...  This is NOT! a "single wire" unit like the GM alt's...
-> And this unit does NOT! have an internal regulator, correct ?
-> I'm trying to simplify the engine compartment, and was hoping
-> not to have to use an external reg and harness... 
I went out to my garage and found a Ford alternator, E1ZF model.
That's a 1981, but is the same beast.  This has a large stud in
a red bushing marked "BAT" for the battery or ammeter connection.
Right next to it is a smaller stud in an orange bushing marked
"FLD". This goes to the field terminal on an external regulator.
There is also a stud in a black bushing marked "STA" which is a
stator connection.  Not needed.  Connects to the electric choke
in some models.  Also one or two other studs useable for ground
points.  The harness in your case would be just a few wires.
One 8 gauge for the battery connection, a 16 gauge for the
regulator to "FLD" connection, and a 16 gauge from a switched
ignition terminal.  Make sure that one doesn't go through the
ignition resistor, but is the full battery voltage...
If your unit matches this description, it requires the external
regulator...  That's just a small, shallow box that's easy to
mount.
Craig,
   ng1u
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