Pre 1970 vs. Post 1970 Alternators / Systems -- SOLVED IT - See Post # 12
Here's the info that I was referring to -- Any problems with this ?? -------------View attachment 1714974170 View attachment 1714974172
They are talking about a new post 70 style regulator. The VR706, is an old, or early style regulator .. only used for alternators with single external field wire, or where the other field connection is grounded. Such a regulator powers the field connection. If you use it incorrectly, with the marked in yellow instructions, there will be near zero volts provided to field winding since both field terminals will have the same potential, no current will flow. And no alternator action...no worky. The later alternator field coil is isolated from ground.
New style regulators, sink one field wire to ground, to complete the circuit, where the other field wire is powered by the blue wire that is hot with ignition on.
