国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 1月12日 00時34分

2018 resolution: Try to cut the cord ?. Maybe listen to the radio instead? Devices like this Globe Trotter 8 Transistor Radio ? made it much easier for people to listen to ? on the move in the 1950s.
Before 1954, so-called "portable" radio receivers used vacuum tubes to receive and amplify signals, and the large batteries needed to power most tubes made radios large and heavy. The invention of transistors in 1947 allowed engineers to design radios that could fit in a large pocket. When these radios hit the market in the mid-1950s, they made listening to music and other broadcasts a mobile experience. Teenagers, in particular, loved the new freedom that transistor radios granted. This particular RCA receiver from 1956 used 8 transistors and ordinary flashlight batteries ??. #NewYearsResolution #HistoryResolution #Radio #BusinessHistory #MusicHistory #Cordcutters #Teen

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