鉱石ラジオ
1. Crystal radioA crystal radio receiver, also called a crystal set or cat's whisker receiver, is a very simple radio receiver, popular in the early days of radio. It needs no battery or power source and runs on the power received from radio waves by a long wire antenna. It gets its name from its most important component, known as a crystal detector, originally made with a piece of crystalline mineral such as galena. This component is now called a diode.
Read “Crystal radio” on English Wikipedia
Read “鉱石ラジオ” on Japanese Wikipedia
Read “Crystal radio” on DBpedia
Read “Crystal radio” on English Wikipedia
Read “鉱石ラジオ” on Japanese Wikipedia
Read “Crystal radio” on DBpedia
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