Evolution of Portable Audio Devices

By isa.dg

  • Regency TR-1

    Regency TR-1
    The world's first commercially produced transistor radio.

  • Raytheon 8-TP-1

    Raytheon 8-TP-1
    Was introduced by Raytheon. It was a larger portable radio, including an expansive four-inch speaker and four additional transistors.

  • TR-55

    TR-55
    Tokyo Tsushin Kogyo (now called Sony), launched its product of its kind with five transistors.

  • Stereobelt

    Stereobelt
    The stereobelt was the first portable personal stereo audio cassette player.

  • Boombox

    Boombox
    Were introduced commercially by various companies in the late 1970's, when stereo capabilities were added to existing designs of the radio-cassette recorder.

  • The Walkman

    The Walkman
    Walkman is a Sony brand tradename originally used for portable audio cassette.

  • The Discman

    The Discman
    The Discman was the product name given to Sony's first portable CD player.

  • MiniDisc

    MiniDisc
    Was announced by Sony as a magneto-optical disc-based data storage device initially intended for storage.