Texas Instruments/DELCO automobile transistor radio, 1957. The invention of the transistor at Bell Labs in 1947 gave engineers a powerful new tool that they quickly adopted for new radio circuits. Portable radios based on vacuum tubes existed prior to the transistor but transistorized designs proved more durable and much more energy efficient. Transistor radios first went on sale in late 1954 and by the early 1960s many Americans owned one. Car radios also became more reliable as transistors were integrated into the design.
Antique Car Radio
1959 GM Delco Oldsmobile Transportable
Vintage transistor car radio in copper on a white Vector Image
Electronics-World-1959-05
Sarnoff Collection at TCNJ - Black and White Portable Television Set
gs5cd1vrf9f magzus.org by Thomas Swift - Issuu
Vintage Transistor Radios
History of Transistors Museum
History of Transistors Museum