Points Regulators to Electronic
I call it the myth of the dual field alternator. As you are aware, the pre 70
alternators have one pin. The post 70 has 2. Due to an article in Mopar Muscle
a few years ago, the many Mopar Owners think that is because the alternator has
a dual field. This is false.
If you've worked with ignition systems you'll know that with a part like a
relay, there are different ways to turn them on. Some are turned on by
grounding the low current side. Some are turned on by powering it instead.
Either way the circuit is completed, and the relay comes on.
This is also the difference in the two charging systems. With the one pin
alternator, the regulator controls the power side of the field current (with the
old points style reg), and the ground is direct, inside the alternator.
The two pin deal: system voltage on the first pin, then the field circuit is
completed by
grounding, ( in the newer electronic reg), controlled to get desired output.
Therefore, the two pin alternator can be used in place of the single pin by
grounding the second pin directly to the engine or body, at time of
installation. In fact, this is visible, if you buy a one pin alt. The second
pin, is grounded directly to the alternator case.
Where do the regulators come in?
You must use an Electronic Voltage Regulator if you run Electronic Ignition. The
voltage fluctuations of the old points style regulator, will spike power and
kill your ECU . Our RESTO Electronic Regulator will do the job
without taking away from the stock appearance of your project.
In the miracle world of mass production, electronic regulators are cheaper to
make than the points style one. The points ones are full of expensive copper
windings behind that black pop off cover. Ours have an electronic chip, the
size of a quarter, that big black cover is virtually empty. Open it up, and
it's just the chip, and a lot of air. A fully electronic bolt in regulator. No
wiring upgrades necessary.
You get the benefits of electronic regulation, without having to alter the under
hood appearance of your car. Great for the guy who has spent 1000 hrs on
detailing alone. Also good for those who simply aren't up to rewiring their
charging system.
Got a early Mopar with the points type regulator, it's time to Upgrade??????

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