File:Diode S Tube.png

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Diode_S_Tube.png ‎(623 × 480 pixels, file size: 65 KB, MIME type: image/png)

used circa 1922

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:02, 11 February 2009		623 × 480 (65 KB)	K3hz (talk \| contribs)	used circa 1922

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Horizontal resolution	236.22 dpc
Vertical resolution	236.22 dpc