File:First vacuum tube AM radio transmitter.jpg
First_vacuum_tube_AM_radio_transmitter.jpg (448 × 360 pixels, file size: 90 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:13, 2 May 2021 | 448 × 360 (90 KB) | Materialscientist | FFT | |
19:13, 25 September 2013 | 448 × 360 (45 KB) | Chetvorno | User created page with UploadWizard |
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