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jan 7, 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
Added to timeline:
Mixtape Anatomy Timeline
By
Isaac Ostrow
19 Oct 2018
0
0
445
Date:
jan 7, 1920
Now
~ 105 years ago
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