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7 Jan 1920 Jahr - AM radio takes off throughout the 20s

Beschreibung:

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

Zugefügt zum Band der Zeit:

Mixtape Anatomy Timeline

ByIsaac Ostrow
19 Okt 2018

Datum:

7 Jan 1920 Jahr
Jetzt
~ 104 years ago
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