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FR1093932A - Cathode à réserve de matière active - Google Patents

Cathode à réserve de matière active

Info

Publication number
FR1093932A
FR1093932A FR1093932DA FR1093932A FR 1093932 A FR1093932 A FR 1093932A FR 1093932D A FR1093932D A FR 1093932DA FR 1093932 A FR1093932 A FR 1093932A
Authority
FR
France
Prior art keywords
active matter
reserve cathode
cathode
matter reserve
active
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)
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.)
Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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 Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt
Application granted granted Critical
Publication of FR1093932A publication Critical patent/FR1093932A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
FR1093932D 1953-03-04 1954-02-26 Cathode à réserve de matière active Expired FR1093932A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU746548X 1953-03-04

Publications (1)

Publication Number Publication Date
FR1093932A true FR1093932A (fr) 1955-05-10

Family

ID=10980201

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1093932D Expired FR1093932A (fr) 1953-03-04 1954-02-26 Cathode à réserve de matière active

Country Status (5)

Country Link
US (1) US2902620A (fr)
DE (1) DE970707C (fr)
FR (1) FR1093932A (fr)
GB (1) GB746548A (fr)
NL (1) NL89470C (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL100632C (fr) * 1953-11-28
US3155864A (en) * 1960-03-21 1964-11-03 Gen Electric Dispenser cathode
US4165473A (en) * 1976-06-21 1979-08-21 Varian Associates, Inc. Electron tube with dispenser cathode
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode
US4837480A (en) * 1988-03-28 1989-06-06 Hughes Aircraft Company Simplified process for fabricating dispenser cathodes
FR2658360B1 (fr) * 1990-02-09 1996-08-14 Thomson Tubes Electroniques Procede de fabrication d'une cathode impregnee et cathode obtenue par ce procede.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681754C (de) * 1934-03-23 1939-09-30 Telefunken Gmbh Mittelbar geheizte Alkalikathode
US2121589A (en) * 1934-06-28 1938-06-21 Westinghouse Electric & Mfg Co Emissive incandescent cathode
DE713560C (de) * 1935-06-14 1941-11-10 Siemens & Halske Akt Ges Verfahren zur Herstellung von Oxydkathoden
DE707255C (de) * 1936-09-21 1941-06-17 Siemens Schuckertwerke Akt Ges Gluehkathode hoher Leistung, insbesondere fuer gas- oder dampfgefuellte Entladungsgefaese
US2491866A (en) * 1942-09-30 1949-12-20 Callite Tungsten Corp Alloy of high density
US2509702A (en) * 1947-01-14 1950-05-30 Eureka Television And Tube Cor Cathode for thermionic valves
BE486002A (fr) * 1947-11-26
BE498869A (fr) * 1949-10-25
US2624024A (en) * 1949-10-26 1952-12-30 Hartford Nat Bank & Trust Co Cathode for use in electron discharge tubes
US2741717A (en) * 1951-06-14 1956-04-10 Siemens Ag Dispenser type cathode having gettercoated parts
DE895479C (de) * 1951-11-20 1953-11-02 Siemens Ag Kathode fuer elektrische Entladungsgefaesse
HU143979A (fr) * 1953-11-05

Also Published As

Publication number Publication date
GB746548A (en) 1956-03-14
DE970707C (de) 1958-10-16
US2902620A (en) 1959-09-01
NL89470C (fr)

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