File:Backward wave oscillator.jpg

Summary
A miniature voltage-tunable O-type <a href="https://en.wikipedia.org/wiki/backward_wave_oscillator" class="extiw" title="en:backward wave oscillator">backward wave oscillator</a> tube from 1956, manufactured by Varian Industries. The backward wave oscillator, invented in 1951 by <a href="https://en.wikipedia.org/wiki/Rudolf_Klompfner" class="extiw" title="en:Rudolf Klompfner">Rudolf Klompfner</a>, is a specialized linear-beam tube which generates <a href="https://en.wikipedia.org/wiki/microwave" class="extiw" title="en:microwave">microwaves</a>. The accompanying ad copy says this tube can operate over an 8.2 - 12.4 GHz range with supply voltage of 300-600 V. The body is approximately 4 inches long. The magnet required for operation weighs less than 5 lbs.
Alterations to image: Cropped out ad copy.
Licensing
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:29, 8 January 2017 | ![]() | 1,000 × 796 (87 KB) | 127.0.0.1 (talk) | A miniature voltage-tunable O-type <a href="https://en.wikipedia.org/wiki/backward_wave_oscillator" class="extiw" title="en:backward wave oscillator">backward wave oscillator</a> tube from 1956, manufactured by Varian Industries. The backward wave oscillator, invented in 1951 by <a href="https://en.wikipedia.org/wiki/Rudolf_Klompfner" class="extiw" title="en:Rudolf Klompfner">Rudolf Klompfner</a>, is a specialized linear-beam tube which generates <a href="https://en.wikipedia.org/wiki/microwave" class="extiw" title="en:microwave">microwaves</a>. The accompanying ad copy says this tube can operate over an 8.2 - 12.4 GHz range with supply voltage of 300-600 V. The body is approximately 4 inches long. The magnet required for operation weighs less than 5 lbs.<br><br> Alterations to image: Cropped out ad copy. |
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