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GRC: Philips Type Numbers
File:Vintage Arvin Transistor Radio, Model 9562, Arvin's First Transistor Radio, British Tan Leatherette Cover, AM Band, 7 Transistors, Made In USA, Circa 1956 (49410419407).jpg - Wikimedia Commons
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/GettyImages-654313946-5c4b7c5e46e0fb00014a2ad9.jpg "The Invention of Radio Technology")
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60 years from the first radio set made by Radio Popular.
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Invention of radio - Wikipedia
