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7 janv. 1920 - AM radio takes off throughout the 20s

Description:

Pittsburgh radio station uses AM radio for news. RCA starts making radios in great quantities. Volume knob invented in 1924, and the jukebox in 1927

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19 oct. 2018

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Date:

7 janv. 1920

Maintenaint

~ Il y a 105 ans

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