when did they go to electronic ignition?

barbee6043 said

another question: was 70 the first year for 2 field alternator and therefore?? the "newer" style VR ??

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70 was the first year for "standard" production of the isolated field alternator and the new "flat" VR. The alternator still looked Just like the 69/ earlier one (separate press in diodes) until ??73?? when they went to the new "squareback" design.