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Japanese: audion
Audio

…In 1806, De Forest added a third electrode grid to the diode vacuum tube invented by JA Fleming, inventing the triode vacuum tube. He named the triode vacuum tube the "trigger," but it later came to be called the audion. The audion was used to generate undamped high-frequency oscillations (stable high-frequency oscillations), and contributed to the development of wireless telephones. …

*Some of the terminology that mentions "audion" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…06年,J.A.フレミングが発明した二極真空管にデ・フォレストは第三電極のグリッドを加えて,三極真空管を発明。彼は三極真空管を〈トリガー〉と名づけたが,のちにこれはオーディオンaudionと呼ばれるようになった。オーディオンは非減衰高周波振動を発生(安定した高周波の発振)するのに使われ,無線電話の発展に寄与した。…

※「audion」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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