File:Diode 1.jpg
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Diode_1.jpg (125 × 269 pixels, file size: 9 KB, MIME type: image/jpeg)
John Fleming's valve or diode (1904) allowed electrical current to flow in one direction only. Courtesy: Science Museum/Science & Society Picture Library.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:30, 9 September 2008 | 125 × 269 (9 KB) | EMW (talk | contribs) | John Fleming's valve or diode (1904) allowed electrical current to flow in one direction only. Courtesy: Science Museum/Science & Society Picture Library. |
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