FR1180779A - Improvements in the manufacture of electron tubes - Google Patents

Improvements in the manufacture of electron tubes

Info

Publication number
FR1180779A
FR1180779A FR1180779DA FR1180779A FR 1180779 A FR1180779 A FR 1180779A FR 1180779D A FR1180779D A FR 1180779DA FR 1180779 A FR1180779 A FR 1180779A
Authority
FR
France
Prior art keywords
manufacture
electron tubes
tubes
electron
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)
Inventor
George Albert Morton
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1180779A publication Critical patent/FR1180779A/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
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
FR1180779D 1956-08-03 1957-07-31 Improvements in the manufacture of electron tubes Expired FR1180779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2928978X 1956-08-03

Publications (1)

Publication Number Publication Date
FR1180779A true FR1180779A (en) 1959-06-09

Family

ID=10917981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1180779D Expired FR1180779A (en) 1956-08-03 1957-07-31 Improvements in the manufacture of electron tubes

Country Status (2)

Country Link
US (1) US2928978A (en)
FR (1) FR1180779A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532468A1 (en) * 1982-08-31 1984-03-02 Thomson Csf IMPROVEMENT TO CATHODES WITH DIRECT HEATING

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172002A (en) * 1960-11-21 1965-03-02 Rca Corp Cathode mount and method of fabrication
FR1490577A (en) * 1966-05-18 1967-08-04 Thomson Houston Comp Francaise Cage-Shaped Direct Heating Cathode Improvements
US3560791A (en) * 1967-09-08 1971-02-02 Siemens Ag Mesh cathode for electron tubes
NL7202069A (en) * 1972-02-17 1973-08-21
US3824424A (en) * 1973-03-26 1974-07-16 Varian Associates Mesh type filamentary thermionic cathode emitter and tube using same
FR2255697B1 (en) * 1973-12-21 1977-08-12 Thomson Csf
GB1514591A (en) * 1976-01-29 1978-06-14 English Electric Valve Co Ltd Electronic valves
FR3098640B1 (en) * 2019-07-08 2021-11-26 Thales Sa ANNULAR CATHODE FOR ELECTRONIC TUBE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1874355A (en) * 1924-03-10 1932-08-30 Rca Corp Thermionic valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532468A1 (en) * 1982-08-31 1984-03-02 Thomson Csf IMPROVEMENT TO CATHODES WITH DIRECT HEATING
EP0107522A1 (en) * 1982-08-31 1984-05-02 Thomson-Csf Directly heated cathodes

Also Published As

Publication number Publication date
US2928978A (en) 1960-03-15

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