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Texas Instruments Designs the Regency TR-1, the First Commercial Transistor Radio, and the First Widely Sold Transistorized Product
Texas Instruments Designs the Regency TR-1, the First Commercial Transistor Radio, and the First Widely Sold Transistorized Product : History of Information
Regency TR-1: The First Transistor Radio, 1955
Regency TR-1: First Transistor Radio – Garrett Fuller
What year was the transistor radio made? - Quora
Regency TR-1 Transistor Radio Facts and Figures
Research & Development Director – Texas Intruments (1958-1968) - The Richard Petritz Foundation
Restoring the World's First Transistor Radio
The History of the Transistor Radio
Transistor radios play on
Regency TR-1: The First Transistor Radio, 1955
Rock and Roll Helps Drive TR-1