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Here are two NOS (new old stock) Motorola MRD500 photo detectors with transistor output.

They're brand new, unused, and still in their original packaging.

These little guys are great for vintage electronics projects, repairs, or just having some spare parts on hand.

MPN MRD500, made by Motorola.
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If you need a phototransistor that's reliable, these are it.

Grab 'em while you can—Motorola parts like this aren't made forever!



5 out of 5