File:Photo4b.jpg
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Photo4b.jpg (450 × 388 pixels, file size: 84 KB, MIME type: image/jpeg)
Summary
William-Kilburn tube image
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:20, 26 February 2021 | | 450 × 388 (84 KB) | Rmuttram (talk | contribs) | |
| 23:03, 26 February 2021 |  | 400 × 345 (84 KB) | Rmuttram (talk | contribs) | William-Kilburn tube image |
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