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Real vs. Fake Audiophile Op-Amps: OPA627

Posted January 29, 2018 by Chris

"Walking around ebay I noticed insanely cheap OPA627’s. It’s rather old, popular and high-quality opamps, often used in audiophile gear. Manufacturer (Texas Instruments / Burr Brown) sells them 16-80$ each while on ebay it’s cost was 2.7$, shipping included. Obviously, something fishy was going on. I ordered one, and for comparison – older one in metal can package, apparently desoldered from some equipment. Let’s see if there is any difference."

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