History of Radio

By Patricia_McCave

  • Phonograph

    Thomas Edison patents the phonograph.

  • Radio Waves

    Heinrich Hertz detects and produces radio waves.

  • First Radio Signal

    Marconi sent and received first radio signal in 1895 invented radio

  • Audion tube

    Lee De Forest, created( “borrowed” the idea for the) audion tube, a vacuum tube that amplified signals (Fessenden came up with it first but got no credit) helped make radio better

  • Music on Radio

    Music first played on the radio in 1906.

  • Radio Station

    8XKK (KDKA) created by Frank Conrad and its still around. Its been here for about 93 years

  • Commerical

    WEAF aired a 10-minute commercial/ toll broadcast, for an Apartment complex charging $50.

  • FRC

    Uncle Charlie too popular so the FRC. So becasue so many people wanted a radio station you needed a license to have a radio station.
    Uncle Charlie is a way of saying personal radio.

  • Golden Era

    30s-40s middle of the great Depression everyone wanted a radio to listen to.

  • Radio Demise

    TV makes appearance in the late 30s. Radio looses money shows jumped ship

  • FM Transmitter

    Major Edwin Armstrong invented the FM transmitter which made a stronger radio signal.

  • Ads

    Advertising is accepted on WCBN-AM

  • WCBN

    WCBN hosts the first National Association of College Broadcasters.

  • USA

    United States radio stations begin broadcasting in stereophonic sound.

  • Sony

    Sony introduces the Walkman, the first portable stereo.