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File:Raytheon Subminiature Tube CK5676.jpg

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English: Norman Krim Success at Raytheon in the 1940's brought the Proximity Fuse for wartime and the Portable Hearing Aid in Peacetime.
Date
Source Own work (Original text: My Collection of Tubes)
Author Engradio

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Transferred from en.wikipedia to Commons by Kelly using CommonsHelper.

The original description page was here. All following user names refer to en.wikipedia.
  • 2013-02-04 21:21 Engradio 3872×2592× (2212183 bytes) Uploading a self-made file using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]

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3 February 2013

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Date/TimeThumbnailDimensionsUserComment
current07:49, 22 February 2014Thumbnail for version as of 07:49, 22 February 20143,872 × 2,592 (2.11 MB)File Upload Bot (Magnus Manske)Transfered from en.wikipedia by User:Kelly using CommonsHelper

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