The transistor radio was invented in 1947. It allowed people to carry radios with them.
Por un escritor de hombre misterioso
Is it true or false that the invention of transistors ushered in the electronic age? - Quora
working pink Emerson radio from the 50's : r/ThriftStoreHauls
THE LITTLE DEVICE THAT CHANGED EVERYTHING -- THE TRANSISTOR
Old portable radios were marvels of technology from the 1950s to the 1980s - Click Americana
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History of Early Solar Powered Radios • Museum Of Solar Energy
THE LITTLE DEVICE THAT CHANGED EVERYTHING -- THE TRANSISTOR
The transistor radio was invented in 1947. It allowed people to carry radios with them.