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mystery selenium rectifier

mystery selenium rectifier

$ 0.50
47 in stock. Contact us for greater quantity.

We found a bin of these sitting on a shelf in our store;  no idea how long we've had them.  This is a selenium rectifier.  They're nice and dusty from sitting around, but we tried one out and it still works.  No idea about the ratings, and we can't find any markings or part numbers.

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