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  2. Transistor radio - Wikipedia

    en.wikipedia.org/wiki/Transistor_radio

    The TR-63 was the first transistor radio to sell in the millions, leading to the mass-market penetration of transistor radios. [26] The TR-63 went on to sell seven million units worldwide by the mid-1960s. [27] With the visible success of the TR-63, Japanese competitors such as Toshiba and Sharp Corporation joined the market. By 1959, in the ...

  3. 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.

  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. 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.

  6. Transistor - Wikipedia

    en.wikipedia.org/wiki/Transistor

    The Sony TR-63, released in 1957, was the first mass-produced transistor radio, leading to the widespread adoption of transistor radios. [44] Seven million TR-63s were sold worldwide by the mid-1960s. [45] Sony's success with transistor radios led to transistors replacing vacuum tubes as the dominant electronic technology in the late 1950s. [46]

  7. TR-55 - Wikipedia

    en.wikipedia.org/wiki/TR-55

    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. Printed circuit boards were used, which was unusual for the time. [6] [8] [3]

  8. List of radios - Wikipedia

    en.wikipedia.org/wiki/List_of_radios

    A very wide range of products was marketed under the Realistic brand. These included record players, stereo receivers, cassette decks, ham radios, [3] musical synthesizers and a few quadraphonic receivers and shortwave radios. Regency TR-1 – the first commercially manufactured transistor radio, it was introduced in 1954. Despite mediocre ...

  9. Norman Krim - Wikipedia

    en.wikipedia.org/wiki/Norman_Krim

    Although Regency is credited of building and marketing the first Transistor Radio (Model TR-1 in 1954), Raytheon was only a few months behind with the 8TP1 through 4 "lunchbox" style radio. Norman Krim was involved in the early transistor radio designs.