The inventor credited for radio's important "audion" tube was

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Lee Deforest is credited with inventing the "audion" tube, a vacuum tube that allowed for the amplification of electrical signals, which was critical for the development of radio technology. Sarnoff was a businessman who played a key role in the commercialization of radio, Marconi is often credited with inventing the wireless telegraph (a precursor to radio), and Edison is known for his work in electric power and the light bulb, but not specifically radio technology.

The Inventor Credited for Radio's Important "Audion" Tube Was