Category:Lieben-Reisz tubes
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Media in category "Lieben-Reisz tubes"
The following 3 files are in this category, out of 3 total.
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German Museum of Technology, Berlin 2017 015.jpg 3,456 × 5,184; 9.15 MB
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Lieben-Reisz vacuum tube.jpg 460 × 1,416; 94 KB
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Meissner radiotelephone transmitter.jpg 811 × 1,026; 90 KB