File:Loewe 1931 vacuum tube.JPG
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:50, 20 February 2009 | 3,008 × 2,000 (2.68 MB) | Badseed | {{Information |Description=A Loewe 1931 vacuum tube (possibly the 3NF or a similar model) that integrated multiple functions in a single tube, a predecessor to the integrated circuit. |Source=Own photo |Date=February 2009 |Author=User:Badseed |Pe |
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