FR953655A - Perfectionnements aux cathodes - Google Patents

Perfectionnements aux cathodes

Info

Publication number
FR953655A
FR953655A FR953655DA FR953655A FR 953655 A FR953655 A FR 953655A FR 953655D A FR953655D A FR 953655DA FR 953655 A FR953655 A FR 953655A
Authority
FR
France
Prior art keywords
enhancements
cathode
cathode enhancements
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
Other languages
English (en)
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR953655A publication Critical patent/FR953655A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
FR953655D 1942-06-26 1947-10-01 Perfectionnements aux cathodes Expired FR953655A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448541A US2367332A (en) 1942-06-26 1942-06-26 Cathode

Publications (1)

Publication Number Publication Date
FR953655A true FR953655A (fr) 1949-12-12

Family

ID=23780713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR953655D Expired FR953655A (fr) 1942-06-26 1947-10-01 Perfectionnements aux cathodes

Country Status (3)

Country Link
US (1) US2367332A (enEXAMPLES)
BE (1) BE478852A (enEXAMPLES)
FR (1) FR953655A (enEXAMPLES)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899591A (en) * 1959-08-11 Electrical heating device

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514925A (en) * 1942-11-09 1950-07-11 Gen Electric High-frequency electric discharge device and system therefor
US2454298A (en) * 1943-07-29 1948-11-23 Harold A Zahl Electronic tube
US2467420A (en) * 1943-11-18 1949-04-19 Jr Abraham Binneweg Short-wave adjustable radio tube
BE470922A (enEXAMPLES) * 1944-01-31
US2431273A (en) * 1944-04-17 1947-11-18 Rca Corp Electron discharge device employing a cavity resonator
US2462909A (en) * 1944-06-26 1949-03-01 Standard Telephones Cables Ltd High-frequency generator
US2452626A (en) * 1945-03-03 1948-11-02 Gen Electric X Ray Corp Electron emitter
US2459859A (en) * 1945-03-23 1949-01-25 Standard Telephones Cables Ltd Grid structure for electron discharge devices
US2446269A (en) * 1945-05-08 1948-08-03 Eitel Mccullough Inc Electrode mounting structure for electron tubes
US2441224A (en) * 1945-08-02 1948-05-11 Nat Union Radio Corp Electron discharge device
US2553580A (en) * 1945-08-22 1951-05-22 Sylvania Electric Prod Electron discharge device
US2472942A (en) * 1947-03-18 1949-06-14 Eitel Mccuilough Inc Electron tube
US2582684A (en) * 1949-07-12 1952-01-15 Eitel Mccullough Inc Electron tube structure
US2720608A (en) * 1951-03-13 1955-10-11 Wihtol Weltis Cathodes for electron tubes
BE511284A (enEXAMPLES) * 1951-05-11
US2695972A (en) * 1952-04-24 1954-11-30 Hartford Nat Bank & Trust Co Electric discharge tube for use at very high-frequencies and ultrahigh frequencies
US2875367A (en) * 1954-10-22 1959-02-24 Gen Electric Cathode structures
FR1137688A (fr) * 1954-10-22 1957-06-03 Thomson Houston Comp Francaise Cathode perfectionnée
US2878410A (en) * 1954-11-09 1959-03-17 Gen Electric Electronic tube structure
US2941109A (en) * 1957-10-25 1960-06-14 Eitel Mccullough Inc Tube having planar electrodes
DE1112209B (de) * 1959-03-20 1961-08-03 Siemens Ag Mittelbar geheizte Kathode mit einer scheibenfoermigen Emissionsflaeche und mit einer Halterung aus nahtlosem Folie-Rohr
US3263109A (en) * 1961-07-24 1966-07-26 Siemens Ag Electron source for corpuscular radiation apparatus operating on a pump including an indirectly heated cathode
US3187215A (en) * 1961-10-02 1965-06-01 Bendix Corp Spark gap device
US3246195A (en) * 1962-04-17 1966-04-12 Hitachi Ltd High-frequency electron tubes
US3522466A (en) * 1968-07-29 1970-08-04 Takeo Kamegaya Electric discharge lamps having hot cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899591A (en) * 1959-08-11 Electrical heating device

Also Published As

Publication number Publication date
US2367332A (en) 1945-01-16
BE478852A (enEXAMPLES)

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