File:Fundamentals of the vacuum tube.gif

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English

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Description

English: RADIO INSTRUCTION COURSE.

Date

WW II

Source

This media is available in the holdings of the National Archives and Records Administration, cataloged under the National Archives Identifier (NAID) 515270.

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Author

Sylvania

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:12, 18 August 2008		448 × 600 (213 KB)	Pieter Kuiper (talk \| contribs)	{{Information \|Description={{en\|1=RADIO INSTRUCTION COURSE.}} \|Source={{NARA-image\|id=515270}} \|Author=Sylvania \|Date=WW II \|Permission={{PD-because\|NARA says: "Use Restriction(s): Unrestricted"}} \|other_versions= }} <!--{{ImageUpload\|full}}--> [[Categor

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