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Can anyone identify this alternator??

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Kiwiduster

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This alternator/generator was fitted to a Lycoming I’ve purchased without logs. I assumed it was a sd-8 when I bought it but doesn’t look like the ones available online to purchase. So I’m thinking it’s really old or another type???? I can’t see any numbers or labels on it. Cheers.
444E396C-252C-448B-9E9D-B42F96F5E8A6.jpeg
 

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