CH264502A - Process for producing an indirectly heatable cathode and cathode produced by this process. - Google Patents

Process for producing an indirectly heatable cathode and cathode produced by this process.

Info

Publication number
CH264502A
CH264502A CH264502DA CH264502A CH 264502 A CH264502 A CH 264502A CH 264502D A CH264502D A CH 264502DA CH 264502 A CH264502 A CH 264502A
Authority
CH
Switzerland
Prior art keywords
cathode
producing
produced
indirectly heatable
indirectly
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH264502A publication Critical patent/CH264502A/en

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
    • 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
CH264502D 1946-11-13 1947-11-04 Process for producing an indirectly heatable cathode and cathode produced by this process. CH264502A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL264502X 1946-11-13
CH230150T 1947-11-04

Publications (1)

Publication Number Publication Date
CH264502A true CH264502A (en) 1949-10-15

Family

ID=25727444

Family Applications (1)

Application Number Title Priority Date Filing Date
CH264502D CH264502A (en) 1946-11-13 1947-11-04 Process for producing an indirectly heatable cathode and cathode produced by this process.

Country Status (7)

Country Link
US (1) US2489367A (en)
BE (1) BE478149A (en)
CH (1) CH264502A (en)
DE (1) DE890389C (en)
FR (1) FR57812E (en)
GB (1) GB652382A (en)
NL (1) NL63789C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626370A (en) * 1949-05-26 1953-01-20 Rca Corp Filament structure for electron discharge device
US4100449A (en) * 1976-04-05 1978-07-11 Rca Corporation Uniform filament and method of making the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700454A (en) * 1924-07-08 1929-01-29 Western Electric Co Electron emitter and process of making the same
US2112969A (en) * 1926-12-11 1938-04-05 Rca Corp Cathode
BE403333A (en) * 1933-06-24

Also Published As

Publication number Publication date
FR57812E (en) 1953-09-17
DE890389C (en) 1953-09-17
BE478149A (en)
US2489367A (en) 1949-11-29
GB652382A (en) 1951-04-25
NL63789C (en)

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