File:EF50.jpg
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![File:EF50.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/EF50.jpg/399px-EF50.jpg)
Size of this preview: 399 × 599 pixels. Other resolutions: 160 × 240 pixels | 320 × 480 pixels | 512 × 768 pixels | 1,066 × 1,600 pixels.
Original file (1,066 × 1,600 pixels, file size: 202 KB, MIME type: image/jpeg)
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:09, 30 August 2011 | ![]() | 1,066 × 1,600 (202 KB) | wikimediacommons>RJB1 | {{Information |Description ={{en|1=EF50 pentode}} {{pl|1=Pentoda EF50}} |Source ={{own}} |Author =RJB1 |Date = |Permission = |other_versions = }} Category:Vacuum tubes |
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