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Bell Labs invented the transistor radio in an effort to revolutionize communications and radio signals with the hope of granting the U.S. military an advantage over their enemies. The transistor radio would later be mass produced as a consumer communication device.
Size
The dimensions of the Regency TR-1 (the world's first pocket radio) is 5 inches by 3 inches. The weight of the device is 12.5 oz.
Function
The transistor radio used a small combination of crystal and wire to amplify electrical signals.
Time Frame
The first commercially sold transistor radio was designed and manufactured in the United States in 1954.
Fun Fact
The first transistor radios were sold for $49.95 each.
Considerations
The pocket-sized transistor radio was equipped with high fidelity, a high volume speaker and a single battery supply.
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