On the old Voltage Regulator systems the idiot light basically (via switching) wired across the Cutout Relay portion of the VR. One wire to a feed (such as that fed from the BAT terminal or ammeter etc) that got hot when the switch turned on,,,,,,,,,,Other to the VR's GEN/ARM terminal. If you turned on the power and she wasn't charging the light grounded through the genny so it lit up HOWEVER once the tractor started and the genny was producing voltage (cutout relay closes if alls well) there's no voltage difference across the light so it went out......….
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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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