GB632948A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB632948A
GB632948A GB2890/47A GB289047A GB632948A GB 632948 A GB632948 A GB 632948A GB 2890/47 A GB2890/47 A GB 2890/47A GB 289047 A GB289047 A GB 289047A GB 632948 A GB632948 A GB 632948A
Authority
GB
United Kingdom
Prior art keywords
struts
prop
contraction
collar
coefficient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2890/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB632948A publication Critical patent/GB632948A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/08—Tubes with a single discharge path having electrostatic control means only with movable electrode or electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection

Abstract

632,948. Velocity-modulated tubes. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Jan. 30, 1947, No. 2890. Convention date, Sept. 21, 1943. [Class 39 (i)] In a reflex velocity-modulation tube with two resonator grids 14, 15, Fig. 1, defining a gap, the grid 14 being mechanically movable by flexing wall 19, heat expansion or contraction of collar 17 due to changes in temperature of the surrounding atmosphere is compensated by an equal thermal expansion or contraction of three struts 24 external to the evacuated envelope of the device, so that the gap width and hence the operating frequency are maintained substantially constant. The collar 17 is of copper, and each strut 24 comprises a prop 27, of cupalloy, brass or of the alloy known under the Registered Trade Mark "Duralumin," having a coefficient of linear expansion greater than that of copper, and a deeply socketed spacer 26 of an iron-nickel-cobalt alloy with a coefficient of linear expansion less than that of the prop. Pins 28 of stainless steel fit into both ends of the props 27. Two of the struts 24 seat in sockets in the plate 22 and the other one in a tuning lever 25 actuated by a micrometer screw (not shown). A change in tuning due to moving lever 25 does not affect the temperature cornpensation. The members 26 are threaded and pass through threaded apertures in the plate 21, so that their position may be adjusted during manufacture to tune the resonator to approximately the correct frequency. The members 26 are then kept in this position permanently by lock-nuts 29. Three springs 23 tend to urge the plates 21, 22 together. A focusing grid 16 is provided for the electron beam.
GB2890/47A 1943-09-21 1947-01-30 Improvements in or relating to electron discharge devices Expired GB632948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US503189A US2439908A (en) 1943-09-21 1943-09-21 Tuning means for electron discharge devices

Publications (1)

Publication Number Publication Date
GB632948A true GB632948A (en) 1949-12-05

Family

ID=24001081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2890/47A Expired GB632948A (en) 1943-09-21 1947-01-30 Improvements in or relating to electron discharge devices

Country Status (4)

Country Link
US (1) US2439908A (en)
BE (1) BE471464A (en)
FR (1) FR942610A (en)
GB (1) GB632948A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058161B (en) * 1953-12-02 1959-05-27 Sperry Rand Corp Reflex klystron

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614233A (en) * 1950-09-15 1952-10-14 Wilbur A Joerndt Ruggedized klystron tube
US2900561A (en) * 1953-12-15 1959-08-18 Bendix Aviat Corp Electron discharge device
US2975323A (en) * 1959-06-05 1961-03-14 Varian Associates Electron discharge device of the klystron type
US3063030A (en) * 1958-12-23 1962-11-06 Raytheon Co Temperature compensated resonant cavities
US3048803A (en) * 1959-03-16 1962-08-07 Hughes Aircraft Co Temperature compensated resonant cavity
NL272174A (en) * 1960-12-06
US3222565A (en) * 1963-07-12 1965-12-07 Varian Associates High frequency electron discharge device with temperature compensated gap control means
US3117251A (en) * 1961-01-26 1964-01-07 Varian Associates Deformable wall tuning means for klystrons
US3225308A (en) * 1964-02-03 1965-12-21 Rfd Inc Temperature compensated resonant cavity structure

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146365A (en) * 1934-12-13 1939-02-07 John C Batchelor Electron emitter
US2109880A (en) * 1935-10-30 1938-03-01 Rca Corp Temperature compensation
US2183215A (en) * 1937-03-29 1939-12-12 Rca Corp Line resonator and electron discharge device circuit therefor
US2259690A (en) * 1939-04-20 1941-10-21 Univ Leland Stanford Junior High frequency radio apparatus
BE438403A (en) * 1939-03-23
NL71847C (en) * 1940-07-02
US2345642A (en) * 1941-04-24 1944-04-04 Sperry Gyroscope Co Inc High frequency tube structure
US2414785A (en) * 1942-01-29 1947-01-21 Sperry Gyroscope Co Inc High-frequency tube structure
US2418844A (en) * 1943-04-01 1947-04-15 Raytheon Mfg Co Ultra high frequency tube
US2413364A (en) * 1943-06-12 1946-12-31 Sylvania Electric Prod Ultra high frequency oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058161B (en) * 1953-12-02 1959-05-27 Sperry Rand Corp Reflex klystron

Also Published As

Publication number Publication date
US2439908A (en) 1948-04-20
BE471464A (en)
FR942610A (en) 1949-02-14

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