File:Backward wave oscillator.jpg

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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/TimeThumbnailDimensionsUserComment
current06:29, 8 January 2017Thumbnail for version as of 06:29, 8 January 20171,000 × 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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