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Industrial SK3009 Transistor
Industrial SK3009 Transistor
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Description:
The SK3009 is a PNP germanium power transistor from RCA's SK series, commonly used in mid‑20th‑century audio‑frequency power amplification and switching in vintage equipment. It supports up to 50 V across the collector-emitter, handles up to 10 A of continuous current, and dissipates as much as 30 W, with a transition frequency of about 0.45 MHz. Built from germanium and rated for operation up to 100°C, the SK3009 was selected for robust high‑current amplifier stages and switching tasks in older radios and audio gear. Typical applications include AF amplifier stages and power‑switching circuits in RCA SK family devices, where this transistor served as a standard high‑current PNP device during its era.
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