FR1490577A - Cage-Shaped Direct Heating Cathode Improvements - Google Patents

Cage-Shaped Direct Heating Cathode Improvements

Info

Publication number
FR1490577A
FR1490577A FR61990A FR61990A FR1490577A FR 1490577 A FR1490577 A FR 1490577A FR 61990 A FR61990 A FR 61990A FR 61990 A FR61990 A FR 61990A FR 1490577 A FR1490577 A FR 1490577A
Authority
FR
France
Prior art keywords
cage
direct heating
heating cathode
shaped direct
shaped
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
FR61990A
Other languages
French (fr)
Inventor
Pierre Gerlach
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
Priority to FR61990A priority Critical patent/FR1490577A/en
Priority to US631464A priority patent/US3473073A/en
Priority to CH555067A priority patent/CH456776A/en
Priority to NL6705621A priority patent/NL6705621A/xx
Priority to GB21096/67A priority patent/GB1179731A/en
Priority to DE19671589608 priority patent/DE1589608A1/en
Application granted granted Critical
Publication of FR1490577A publication Critical patent/FR1490577A/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
FR61990A 1966-05-18 1966-05-18 Cage-Shaped Direct Heating Cathode Improvements Expired FR1490577A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR61990A FR1490577A (en) 1966-05-18 1966-05-18 Cage-Shaped Direct Heating Cathode Improvements
US631464A US3473073A (en) 1966-05-18 1967-04-17 Electron tube having an improved direct-heated cathode structure
CH555067A CH456776A (en) 1966-05-18 1967-04-19 Direct heated cathode for electron tubes
NL6705621A NL6705621A (en) 1966-05-18 1967-04-21
GB21096/67A GB1179731A (en) 1966-05-18 1967-05-05 Electron Tube having an improved Directly-Heated Cathode Structure
DE19671589608 DE1589608A1 (en) 1966-05-18 1967-05-12 Directly heated cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR61990A FR1490577A (en) 1966-05-18 1966-05-18 Cage-Shaped Direct Heating Cathode Improvements

Publications (1)

Publication Number Publication Date
FR1490577A true FR1490577A (en) 1967-08-04

Family

ID=8608894

Family Applications (1)

Application Number Title Priority Date Filing Date
FR61990A Expired FR1490577A (en) 1966-05-18 1966-05-18 Cage-Shaped Direct Heating Cathode Improvements

Country Status (6)

Country Link
US (1) US3473073A (en)
CH (1) CH456776A (en)
DE (1) DE1589608A1 (en)
FR (1) FR1490577A (en)
GB (1) GB1179731A (en)
NL (1) NL6705621A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976909A (en) * 1975-07-11 1976-08-24 Rca Corporation Wire mesh cathode
SU1042105A1 (en) * 1980-02-05 1983-09-15 Организация П/Я Х-5263 Grid-type filamentary cathode for vacuum tubes and its manufacture method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL76656C (en) * 1949-05-06
GB709274A (en) * 1950-05-16 1954-05-19 Siemens Ag Improvements in or relating to cathodes for electric discharge tubes
US2928978A (en) * 1956-08-03 1960-03-15 Int Standard Electric Corp Mounting of thermionic cathodes
DE1146985B (en) * 1960-11-04 1963-04-11 Siemens Ag Semi-indirectly heated cathode for electron tubes
GB987461A (en) * 1962-05-31 1965-03-31 Standard Telephones Cables Ltd Thermionic valves
GB1017750A (en) * 1963-12-12 1966-01-19 Standard Telephones Cables Ltd Thermionic cathodes

Also Published As

Publication number Publication date
NL6705621A (en) 1967-11-20
US3473073A (en) 1969-10-14
CH456776A (en) 1968-07-31
DE1589608A1 (en) 1970-05-14
GB1179731A (en) 1970-01-28

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