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Radio receiver Ducretet Thomson Wireless telegraphy, crete, electronics, lamp, bluetooth png | PNGWing
![The early 1920's. Birth of commercial radio as we know it today. KDKA in Pittsburg is recognized as being the first broadcast outlet, having given the election returns of the Harding-Cox presidential race in 1920. 1921 brought WJZ New York to the air with ... The early 1920's. Birth of commercial radio as we know it today. KDKA in Pittsburg is recognized as being the first broadcast outlet, having given the election returns of the Harding-Cox presidential race in 1920. 1921 brought WJZ New York to the air with ...](http://www.wlshistory.com/WLS20/image-20-03.jpg)
The early 1920's. Birth of commercial radio as we know it today. KDKA in Pittsburg is recognized as being the first broadcast outlet, having given the election returns of the Harding-Cox presidential race in 1920. 1921 brought WJZ New York to the air with ...
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