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Transistor radio - Wikipedia
Trans-Oceanic - Wikipedia
File:Single transistor radio circuit.svg - Wikipedia
File:Vintage Realistic 8 Leather-Cased Transistor Radio, Made By Toshiba, 8 Transistors, Made In Japan, Circa 1959 (14201354714).jpg - Wikipedia
Who invented the first portable radio? What were they used for? - Quora
Citizens band radio - Wikipedia
File:Zenith 8-transistor radio open.agr.jpg - Wikimedia Commons
Table radio - Wikipedia
File:Vintage Zenith Royal 2000 Trans-Oceanic Transistor Radio, Chassis 11ET40Z2, Made in the USA (12126051964).jpg - Wikipedia
The Transistor Radio Nuts & Volts Magazine
File:Gauja portable radio 1961.JPG - Wikipedia
File:Vintage Elgin Transistor Radio, Model R-1300, AM & FM Bands, 10 Transistors, Made In Japan, Circa 1960s (31769605776).jpg - Wikimedia Commons