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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.
Radio Flyer, based in Chicago, came into existence in 1917. Since then, itâs sold more than 100 million wagons and was inducted into the National Toy Hall of Fame. What you can learn from the Radio Flyer about selling: Find various uses for your product. Children and adults both love the Radio Flyer.