FR1053139A - Improvements to thermionic cathodes - Google Patents

Improvements to thermionic cathodes

Info

Publication number
FR1053139A
FR1053139A FR1053139DA FR1053139A FR 1053139 A FR1053139 A FR 1053139A FR 1053139D A FR1053139D A FR 1053139DA FR 1053139 A FR1053139 A FR 1053139A
Authority
FR
France
Prior art keywords
thermionic cathodes
thermionic
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.)
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 FR1053139A publication Critical patent/FR1053139A/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
FR1053139D 1952-03-28 1952-03-28 Improvements to thermionic cathodes Expired FR1053139A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1034276X 1952-03-28

Publications (1)

Publication Number Publication Date
FR1053139A true FR1053139A (en) 1954-02-01

Family

ID=9585003

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1053139D Expired FR1053139A (en) 1952-03-28 1952-03-28 Improvements to thermionic cathodes

Country Status (4)

Country Link
CH (1) CH327481A (en)
DE (1) DE1034276B (en)
FR (1) FR1053139A (en)
GB (1) GB736542A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1455956A (en) * 1965-07-20 1966-05-20 Thomson Houston Comp Francaise Direct heating cathode improvements

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2385973A (en) * 1942-08-24 1945-10-02 Eitel Mccullough Inc Apparatus for making grids
US2358200A (en) * 1943-10-02 1944-09-12 Gen Electric X Ray Corp Grid assembly structure
FR911302A (en) * 1945-01-11 1946-07-04 Radioelectriques S A Lab Improvements to electronic tubes
US2457626A (en) * 1945-07-03 1948-12-28 Gen Electric X Ray Corp Grid construction
DE863830C (en) * 1950-05-17 1953-01-19 Siemens Ag Cathode for electron tubes
NL86395C (en) * 1950-05-17
DE857100C (en) * 1950-06-30 1952-11-27 Siemens Ag Fastening of heating threads, especially in the case of high-performance discharge tubes
DE839235C (en) * 1950-08-20 1952-05-19 Siemens Ag Electron tubes, in particular transmitter tubes

Also Published As

Publication number Publication date
DE1034276B (en) 1958-07-17
CH327481A (en) 1958-01-31
GB736542A (en) 1955-09-07

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