26-08-2021, 01:29 AM
(This post was last modified: 26-08-2021, 06:42 AM by Bob Culver.)
When current flows the field twists, the basis of fixed load 3rd brush voltage control. There is an optimum brush main axis for each output and least sparking (due volt difference between adjacent segments). The DEL dyn has an adj but requires more patience than I possess.
Early Beetles were common here (following great success in rugged around Australia rallies) and whilst upright had a better reputation than most small Brit cars.
Few elementay texts depict the 2 brush windings as shown and so can be a puzzle for amateurs (Each winding actually embraces the whole armature . Poor commutator connections can be easily found with the very low ohms range of digital multimeters.)
Early Beetles were common here (following great success in rugged around Australia rallies) and whilst upright had a better reputation than most small Brit cars.
Few elementay texts depict the 2 brush windings as shown and so can be a puzzle for amateurs (Each winding actually embraces the whole armature . Poor commutator connections can be easily found with the very low ohms range of digital multimeters.)