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EH.Net Encyclopedia: History of the Radio Industry in the United States to 1940 |
 | | Radio broadcasting was the cheapest form of entertainment, and it provided the public with far better entertainment than most people were accustomed to. |
 | | The growth of radio in the 1920s and 30s can be seen in Tables 1, 2, and 3, which give the number of stations, the amount of advertising revenue and sales of radio equipment. |
 | | That radio was to be a regulated industry was decided in 1912, when Congress passed a Radio Act that required people to obtain a license from the government in order to operate a radio transmitter. |
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