67 Barracuda alternator with 2 FLD connections
Here's one
What happened was this. In 1970 Chrysler implemented a solid state voltage regulator on all vehicles. At the time, the type of transistor needed to regulate the power feed to the rotor would have been more difficult (costly) to implement. At least thats the best we can figure. So instead they made a regulator that controlled the rotor's ground.
In a '67 the regulator controls the current feeding the rotor (aka field).
Field is short for Electro-magnetic field. Electrical current through rotor's windings makes a magnetic field.
Alternators create electric power by spinning that magnetic field and inducing current in fixed set of wire windings. The regulator controls how strong the magnetic field becomes by controlling flow into the rotor.
Internally, a set of points moves between three positions.
1. No flow
2. Flow through resistors
3. Direct flow.
What is going is this. Sometimes its easier to pick up an alternator with two filed terminals and ground one of them. I've had to do that on several occasions.
Here's one
What happened was this. In 1970 Chrysler implemented a solid state voltage regulator on all vehicles. At the time, the type of transistor needed to regulate the power feed to the rotor would have been more difficult (costly) to implement. At least thats the best we can figure. So instead they made a regulator that controlled the rotor's ground.
In a '67 the regulator controls the current feeding the rotor (aka field).
Field is short for Electro-magnetic field. Electrical current through rotor's windings makes a magnetic field.
Alternators create electric power by spinning that magnetic field and inducing current in fixed set of wire windings. The regulator controls how strong the magnetic field becomes by controlling flow into the rotor.
Internally, a set of points moves between three positions.
1. No flow
2. Flow through resistors
3. Direct flow.
