File:Audion vacuum tube advertisement.png
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Size of this preview: 800 × 542 pixels. Other resolutions: 320 × 217 pixels | 640 × 434 pixels | 1,108 × 751 pixels.
Original file (1,108 × 751 pixels, file size: 251 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:57, 12 January 2013 | 1,108 × 751 (251 KB) | wikimediacommons>Chetvorno | Cropped out everything but the De Forest Audion ad; this is the important content. The other stuff made the Audion ad too small to read. |
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