A self-taught instrument maker became a central figure in acoustic science.

Evidence

Rudolph Koenig was a unique figure in acoustics. Koenig did not do well in college (he had trouble with languages) and apparently never wanted to be a part of the academic establishment. He became, nonetheless, a key player in the scientific controversies of his day concerning acoustics and perception. He made a living selling demonstration equipment and scientific instruments. — Eric J. Heller, Why You Hear What You Hear- An…, 2309

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