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File:6P1P trio.JPG

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6P1P_trio.JPG (532 × 449 pixels, file size: 146 KB, MIME type: image/jpeg)

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Description A comparison of vacuum tubes: 6P1P by Svetlana 1971 (left), 6P1P-EV by Svetlana 1986, 6P1 by Beijing Electron Tube Factory 1986 (right).
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Source Own work
Author Tvezymer

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Date/TimeThumbnailDimensionsUserComment
current10:48, 25 April 2008Thumbnail for version as of 10:48, 25 April 2008532 × 449 (146 KB)Tvezymer (talk | contribs){{Information |Description=6P1P vacuum tubes: 6P1P by Svetlana 1971, 6P1P-EV by Svetlana 1986, 6P1 by Bejing |Source=self-made |Date=1/12/2007 |Author= Tvezymer |Permission= |other_versions= }}

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