DescriptionMap of Mauldin, South Carolina grapevine radio system (1936).gif
English: Map of the Mauldin, South Carolina "grapevine radio" system in 1936. Based on the map that appears on page 72 of the July/August 1980 (Vol. 26 No. 1) issue of RCA Engineer, in the article "Bringing Radio to the Rural Home" by Gordon F. Rogers.
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