Topic summary
TR-55
The TR-55, released in 1955, was both Japan's and Sony's first commercially available transistor radio. The use of transistors allowed the device to be much smaller than earlier vacuum tuberadios.
Topic summary
The TR-55, released in 1955, was both Japan's and Sony's first commercially available transistor radio. The use of transistors allowed the device to be much smaller than earlier vacuum tuberadios.