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With a WW resistor, often you can break it open and find a section that has continuity, and extrapolate the original value.
E.g., if half the winding is good and shows 500 ohms, the original will be 1000 ohms. Or if a third of the winding is good and shows 500 ohms, the original will be 1500 ohms. Etc.
Since WWs don't change value much, this method gives a pretty reliable approximation, considering standard +/- tolerances.
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