Reply to "Amp Gauge waving like a beauty queen in a parade"

adding a shunt to reduce the current through the meter movement would take a current that is actually waving from 10 to 15 amps (5 amp wave) and send only 1/2 of that to the meter so it shows only shows a current or 5 to 7 1/2 amps and thus a 2 1/2 amp wave. So you would not see the waving, but the battery and the car's electrical still do. (the waving shown on wolfgang's utube is much more severe than what I would expect from a mechanical regulator)

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I have been "Learning" about mechanical voltage regulators just from sifting through google info and have a question I hope some one would know the answer.

some discriptions state there are 3 charging levels, ie full, half and zero field current. that is the voltage relay contacts are either closed, open or grounded. other discriptions state there are 2 charging levels, ie full or zero field current. thus the voltage relay contacts are closed or grounded.

being a mechanical by trade, I never realy fully grasp Kirchhoff's current summation rules, but I can not see how the voltage divider used to provide voltage to the voltage relay's coil could work with the 3 level discription using the schematic provide by PanteraPlace. using the 2 level of charging works fine. I have found other schematics that does keep the voltage divider simple even with 3 level charging.

SO, does the Ford mechanical regulator have 3 or 2 charging levels?