File:1939 Mission Bell Model 410 with Magic Eye Tube.jpg
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Summary
| Description |
English: Magic Eye or Electron Ray Tubes invented by Allen DuMont were low cost alternatives to panel meters in the late 1930's to early 1940's. People like the green glow and the movement of the target as they tuned in a station. |
| Date | |
| Source | Own work (Original text: Photo of my personal radio collection) |
| Author | Engradio |
Licensing
Engradio at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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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.
- 2013-02-25 17:28 Engradio 2896×1944× (1585249 bytes) Uploading a self-made file using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:28, 19 February 2014 | | 2,896 × 1,944 (1.51 MB) | File Upload Bot (Magnus Manske) | Transfered from en.wikipedia by User:Kelly using CommonsHelper |
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