voltage regulator
Here's some figures
72 manual says:
2.5--3.1A rotating by hand
74 manual says:
2.5--3.6A at 12V turning by hand
76 and 79 shop manual electrical:
4.5--6.5A at 12V all except 100 amp (big frame) turning by hand
100A 4.65--6A at 12V
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