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Klystron - Sperry Gyroscope Company
November 1944 Radio News Article

November 1944 Radio News
November 1944 Radio News Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio & Television News, published 1919 - 1959. All copyrights hereby acknowledged.

Did you know that Sperry was assigned a trademark on the term "klystron?" The klystron vacuum tube type was actually invented by invented in 1937 by American electrical engineers Russell and Sigurd Varian (I'm old enough to have had Varian Associates catalogs). According to this full-page advertisement in a 1944 issue of Radio News magazine, not only did Sperry develop the klystron vacuum tube, but they also coined a term to describe any study or application of it: "klystronics." Here is a very interesting excerpt from the Wikipedia page, "The work of physicist W.W. Hansen was instrumental in the development of the klystron and was cited by the Varian brothers in their 1939 paper. His resonator analysis, which dealt with the problem of accelerating electrons toward a target, could be used just as well to decelerate electrons (i.e., transfer their kinetic energy to RF energy in a resonator). During the second World War, Hansen lectured at the MIT Radiation labs two days a week, commuting to Boston from Sperry Gyroscope Company on Long Island. His resonator was called a "rhumbatron" by the Varian brothers. Hansen died of beryllium disease in 1949 as a result of exposure to beryllium oxide (BeO)."

Klystron - Sperry Gyroscope Company

Klystron - Sperry Gyroscope Company, November 1944 Radio News - RF CafeKlystron:

A pencil of energy beamed like light

If you'll imagine an invisible search-light beam, you'll have a good picture of how Klystron-generated radio waves can be directed into a narrow "pencil" of energy.

This direction is accomplished by suitable reflectors. The beam of ultra-high-frequency waves travels in a straight line, and it can pierce fog, smoke, and clouds which would stop a light beam.

Sperry-developed Klystron tubes are used in many equipments now serving our Armed Forces. Later, Klystronics will open the door to the development of many ingenious peacetime devices.

Klystrons are now being produced in quantities, and certain types are available.

The name "KLYSTRON" is a registered trade-mark of the Sperry Gyroscope Company, Inc. Like many other Sperry devices, Klystrons are also being made during the emergency by other companies.

Sperry Gyroscope Company

Great Neck, N. Y. • Division of the Sperry Corporation

Gyroscopics • Electronics • Automatic Computation • Servo Mechanisms

 

 

Posted October 2, 2019

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