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Solar-powered radio : ウィキペディア英語版 | Solar-powered radio
A solar powered radio is a portable radio receiver powered by photovoltaic panels. It is primarily used in remote areas where access to power sources is limited. == History == The solar powered radio first came into existence in the 1950s, developed by General Electric. It weighed just 10 ounces and was capable of working without light and recharging. It contained seven solar cells, four transistors and a small battery. In 1954, Western Electric began to sell commercial licenses solar powered radio, including other photovoltaic technologies.
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