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  2. TR-55 - Wikipedia

    en.wikipedia.org/wiki/TR-55

    When the TR-55 was released in Japan in August 1955, [3] it was the first transistor radio marketed in that country. The TR-55 featured the Sony name, but the company did not officially change its name to Sony until January 1958. [4] In the autumn of 1955, Morita met with a representative of the Bulova watch company in New York City. Bulova ...

  3. Transistor radio - Wikipedia

    en.wikipedia.org/wiki/Transistor_radio

    An early 2000s transistor radio (Sony Walkman SRF-S84 transistor radio, released 2001, shown without earphones) Rock 'n roll music became popular at the same time as transistor radios. Parents found that purchasing a small transistor radio was a way for children to listen to their music without using the family tube radio.

  4. History of the transistor - Wikipedia

    en.wikipedia.org/wiki/History_of_the_transistor

    The all-transistor car radio was a $150 option. [51] [52] [53] The Sony TR-63, released in 1957, was the first mass-produced transistor radio, leading to the mass-market penetration of transistor radios. [54] The TR-63 went on to sell seven million units worldwide by the mid-1960s. [55]

  5. Regency TR-1 - Wikipedia

    en.wikipedia.org/wiki/Regency_TR-1

    Regency TR-1 transistor radio. The Regency TR-1 was the first commercially manufactured transistor radio, introduced in 1954.Despite mediocre performance, about 150,000 units were sold, due to the novelty of its small size and portability.

  6. Sony - Wikipedia

    en.wikipedia.org/wiki/Sony

    According to Schiffer, Sony's TR-63 radio "cracked open the U.S. market and launched the new industry of consumer microelectronics." [30] By the mid-1950s, American teens had begun buying portable transistor radios in huge numbers, helping to propel the fledgling industry from an estimated 100,000 units in 1955 to 5 million units by the end of ...

  7. History of radio - Wikipedia

    en.wikipedia.org/wiki/History_of_radio

    The Regency TR-1, which used Texas Instruments' NPN transistors, was the world's first commercially produced transistor radio in 1954. Size: 3×5×1.25 inch (7.6×12.7×3.2 cm) Following development of transistor technology, bipolar junction transistors led to the development of the transistor radio.

  8. List of radios - Wikipedia

    en.wikipedia.org/wiki/List_of_radios

    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.

  9. Trans-Oceanic - Wikipedia

    en.wikipedia.org/wiki/Trans-Oceanic

    Another first for portable radios was the unique dial scale used in the 1000 and later series of Trans-Oceanics. The 1000 was designed with a cylinder dial scale that would rotate with the band switch allowing only that particular band scale to show. [9] Zenith Royal 1000 All Transistor Trans-Oceanic Short Wave Portable Radio, circa 1957.

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