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A transistor radio is a small portable radio receiver that uses transistor -based circuitry. Following the invention of the transistor in 1947—which revolutionized the field of consumer electronics by introducing small but powerful, convenient hand-held devices—the Regency TR-1 was released in 1954 becoming the first commercial transistor ...
The TR-55's five transistors were designed in house by Sony, the technology having been licensed from Bell Labs. This made Sony the first company to produce commercial transistor radios from the ground up. American company Regency had launched their Regency TR-1 transistor radio earlier in 1954, but bought the transistors from Texas Instruments.
The RCA model R7 Superette superheterodyne table radio. This is a list of notable radios, which encompasses specific models and brands of radio transmitters, receivers and transceivers, both actively manufactured and defunct, including receivers, two-way radios, citizens band radios, shortwave radios, ham radios, scanners, weather radios and airband and marine VHF radios.
Trans-Oceanic. A Trans-Oceanic model Y600. Shown on the left is a modern shortwave radio for comparison. The Trans-Oceanic (abbreviated T/O) was a brand of portable radios produced from 1941 to 1981 by Zenith Radio. They were characterized by heavy-duty, high-quality construction and their performance as shortwave receivers.
On May 7th, 1946, Masaru Ibuka and Akio Morita founded ’Tokyo Tsushin Kogyo’, the company that would later become Sony. After its beginnings making tape recorders and transistor radios, it ...
Transistor technology The Regency TR-1, which used Texas Instruments' NPN transistors, was the world's first commercially produced transistor radio in 1954. Following development of transistor technology, bipolar junction transistors led to the development of the transistor radio.
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