File:DuMont 164 Oscillograph 1939-40.jpg
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Summary
| Description |
English: DuMont was a leading manufacturer of cathode ray tubes and oscilloscopes (oscillographs) from the 1930's until the mid 1950's. |
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Own work (Original text: Picture of my collection) |
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| Author | Engradio | |||
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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.
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- 2013-02-08 04:21 Engradio 2592×3872× (2599812 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 | 12:40, 23 December 2022 | | 2,100 × 2,900 (2.76 MB) | Pittigrilli | corrected perspective, cropped, colours |
| 07:53, 22 February 2014 |  | 2,592 × 3,872 (2.48 MB) | File Upload Bot (Magnus Manske) | Transfered from en.wikipedia by User:Kelly using CommonsHelper |
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