Audio history by ali and brandon

By alileal

  • marconi

    Intalian inventor that sent and recieved the first radio wave.He sold this to the marines. Nobody is 100% sure if he actually did, because if you said you did it they prettyy much just believed you back then.
  • audion tube

    audion tube

    Created by Lee De Forest. This tube is a vaccum tube that amplified signals.
  • Radio Stations

    Radio Stations

    8XK----->KDKA. Still broadcast in PA. Frank Conrad.

  • Uncle Charlie

    Uncle Charlie is a term, for having your own radio station.

  • FRC

    The FRC was established because too many people wanted radio stations and the FRC made people have to have a license to transmit radio.
  • golden era

    golden era

    Midldle of great depression. Needed money. Family medium. Auperman was really popular

  • Radios Demise

    Radio stopped being popular when the T.V. came out. in 1930.
  • radios progression

    radios progression

    edwin armstrong invented AM radio. Talk on AM. Music on FM