File:真空管アンプ.JPG

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真空管アンプ.JPG (640 × 480 pixels, file size: 52 KB, MIME type: image/jpeg)

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日本語: 1920年代の真空管アンプ。鉱石検波器、真空管検波器の出力を増幅してスピーカーを鳴らすのに使われた。A電池、B電池、C電池が必要。私の所持品を撮影しました。
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Author 写真家
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attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers.
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GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. Subject to disclaimers.

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Date/TimeThumbnailDimensionsUserComment
current02:45, 23 May 2004Thumbnail for version as of 02:45, 23 May 2004640 × 480 (52 KB)写真家 (talk | contribs)真空管アンプ

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