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A transistor radio is a small portable radio receiver that uses transistor-based circuitry. Following their development in 1954, made possible by the invention of the transistor in 1947, they became the most popular electronic communication device in history, with billions manufactured during the 1960s and 1970s.
In fact, radio was initially considered a kind of disembodied newspaper. Although this idea gave early proponents a useful, familiar way to think about radio, it underestimated radioâs power as a medium. Newspapers had the potential to reach a wide audience, but radio had the potential to reach almost everyone.