SONY TR-72, Transistor Portable Radio
Datec. 1956
Credit LineGift of Ms. Becky Boughner, London, Ontario, 2011
Object number2011.020.001
Label TextThis is a 1956 portable Sony transistor radio. Transistors are semiconductor devices that amplify or switch electronic signals. They replaced vacuum tubes as amplifiers for audio signals in radios. As a result, radios became smaller, required less power, were more shock-resistant and did not need time to warm up. Transistor radios became all the rage because they allowed people to carry their entertainment with them wherever they went.
NameRadio, Portable
c. 1919
1957-1958
c. 1938
