2N2642

Green Brook Online Verified independent store

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High-gain NPN silicon planar small-signal transistor housed in a metal TO-18 can, optimized for low-noise voltage amplification and general-purpose tracking circuitry in vintage te st instruments. Equivalents: BC108, BC548 (plastic TO-92 version), NTE123A. Real-Life Examples: Vintage electronic alignment generators, early audio mixing panels, and legacy diagnostic testing decks. Show more