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FR1078606A - Improvements to emissive cathodes - Google Patents

Improvements to emissive cathodes

Info

Publication number
FR1078606A
FR1078606A FR1078606DA FR1078606A FR 1078606 A FR1078606 A FR 1078606A FR 1078606D A FR1078606D A FR 1078606DA FR 1078606 A FR1078606 A FR 1078606A
Authority
FR
France
Prior art keywords
emissive cathodes
emissive
cathodes
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
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR1078606A publication Critical patent/FR1078606A/en
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
FR1078606D 1953-04-02 1953-04-02 Improvements to emissive cathodes Expired FR1078606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1039140X 1953-04-02

Publications (1)

Publication Number Publication Date
FR1078606A true FR1078606A (en) 1954-11-19

Family

ID=9588108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1078606D Expired FR1078606A (en) 1953-04-02 1953-04-02 Improvements to emissive cathodes

Country Status (4)

Country Link
US (1) US2786957A (en)
DE (1) DE1039140B (en)
FR (1) FR1078606A (en)
GB (1) GB756767A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939990A (en) * 1956-05-21 1960-06-07 Int Standard Electric Corp Oxide cathode for amplifier tubes
US3070719A (en) * 1957-07-24 1962-12-25 Varian Associates Cathodes for magnentically-confined glow discharge apparatus
US3025428A (en) * 1959-10-15 1962-03-13 Kuthe Lab Inc Cathode structure
DE1283402B (en) * 1966-03-29 1968-11-21 Siemens Ag Indirectly heated storage cathode for electrical discharge vessels
DE3233584A1 (en) * 1982-09-10 1984-03-15 G. Rau GmbH & Co, 7530 Pforzheim ELECTRODE FOR AN ELECTRICAL DISCHARGE LINE AND PRODUCTION METHOD THEREFOR
WO1984001664A1 (en) * 1982-10-12 1984-04-26 Hughes Aircraft Co Controlled porosity dispenser cathode

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB207514A (en) * 1923-10-29 1924-05-01 Western Electric Co Ltd Improvements in electron discharge devices
NL24196C (en) * 1928-04-10
DE663197C (en) * 1930-12-31 1938-08-01 Patra Patent Treuhand Electric light tube with discharge through the positive column and with compact, cold metal electrodes
GB437967A (en) * 1934-05-11 1935-11-08 Gen Electric Co Ltd Improvements in thermionic cathodes
GB495916A (en) * 1936-12-22 1938-11-22 Zeiss Ikon Ag Improvement in or relating to thermionic cathodes
US2452075A (en) * 1941-12-18 1948-10-26 Raytheon Mfg Co Velocity modulation electron discharge tube
BE451865A (en) * 1942-08-13
US2459841A (en) * 1943-06-08 1949-01-25 Glenn F Rouse Cathode
FR945839A (en) * 1947-04-18 1949-05-16 Radioelectriques Lab Further development of vacuum tube cathodes
BE486753A (en) * 1948-01-15
US2624024A (en) * 1949-10-26 1952-12-30 Hartford Nat Bank & Trust Co Cathode for use in electron discharge tubes

Also Published As

Publication number Publication date
US2786957A (en) 1957-03-26
DE1039140B (en) 1958-09-18
GB756767A (en) 1956-09-12

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