Both are wrong if used on the wrong generator. Because we do not know what you are working on we can't tell you. Ford and several other companies use a generator that is called a B circuit design that supplies battery voltage through the regulator to the field terminal then through the windings to ground. Delco based generators are likely to be A circuit, these have voltage coming from the Arm terminal, or a third brush, going through the field windings then to the F terminal on the regulator to ground. Very different, and doing it wrong can ruin the regulator on either design. What are you working on? Jim
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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