To begin with, who made possible the wonderful advance of radio? Not the person who sits back and listens to some "opera star" or a "band", but the real radio amateur, who has experimented for years until he has perfected his apparatus.

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Attribution

Quote text and notes from Wikiquote: John Howard Lindauer Sr. (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.