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File:Paper Label used to ID Audio Tron.jpg

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Description
English: All Audio Trons from 1915-1917 used a paper label like this to identify the tube. The label often came off over time. Later Cunningham would have the identifications etched on the glass.
Date 11 February 2013 (according to Exif data)
Source Own work
Author Engradio

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Transferred from en.wikipedia to Commons using For the Common Good.

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Date/Time Dimensions User Comment
03:49, 12 February 2013 3,872 × 2,592 (2,674,529 bytes) w:en:Engradio (talk | contribs) (Uploading a self-made file using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]])

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11 February 2013

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current21:55, 12 February 2013Thumbnail for version as of 21:55, 12 February 20133,872 × 2,592 (2.55 MB)ALHTransferred from en.wikipedia: see original upload log above

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