File:高圧用全波整流管 型名不詳.jpg

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日本語: 高圧用全波整流管（型名不詳）制作時期不明 東京電気株式会社（東芝）製 東京工業大学博物館・百年記念館（2階：電気〜光/通信の先端研究史）所蔵 「東京工業大学での短波・超短波通信の実験に使われた真空管」
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I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

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current06:37, 21 March 2016Thumbnail for version as of 06:37, 21 March 20161,850 × 2,466 (1.9 MB)Yoit (talk | contribs)User created page with UploadWizard

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