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The Regency TR-1, made by the Regency Division of I.D.E.A. (Industrial Development Engineering Associates) of Indianapolis, Ind., was the first commercially manufactured transistor radio. The TR-1 was announced on October 18, 1954 and put on sale in November 1954 for $49.95 and sold about 150,000 units.
National Museum of American History: Regency Model TR-1 Transistor Radio
November 2, 2020 marks the 100th anniversary of the first commercial radio broadcast. To celebrate this special anniversary, we’re shining a spotlight on 100 key moments in radio's history.
We hope you’ll join us in celebrating your favorite radio memories throughout 2020. Use the hashtag #Radio100 across social media to share these moments with the world. Here’s to 100 wonderful years of radio, and to at least 100 more!