FR1430540A - Indirectly heated cathode - Google Patents

Indirectly heated cathode

Info

Publication number
FR1430540A
FR1430540A FR8809A FR8809A FR1430540A FR 1430540 A FR1430540 A FR 1430540A FR 8809 A FR8809 A FR 8809A FR 8809 A FR8809 A FR 8809A FR 1430540 A FR1430540 A FR 1430540A
Authority
FR
France
Prior art keywords
indirectly heated
heated cathode
cathode
indirectly
heated
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
FR8809A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1430540A publication Critical patent/FR1430540A/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
    • H01J1/22—Heaters
FR8809A 1964-03-11 1965-03-11 Indirectly heated cathode Expired FR1430540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6402479A NL6402479A (en) 1964-03-11 1964-03-11

Publications (1)

Publication Number Publication Date
FR1430540A true FR1430540A (en) 1966-03-04

Family

ID=19789541

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8809A Expired FR1430540A (en) 1964-03-11 1965-03-11 Indirectly heated cathode

Country Status (6)

Country Link
AT (1) AT248553B (en)
BE (1) BE660855A (en)
DE (1) DE1219128B (en)
ES (1) ES310283A1 (en)
FR (1) FR1430540A (en)
NL (1) NL6402479A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026300A1 (en) * 1990-08-20 1992-02-27 Siemens Ag Electron emitter for X=ray tube - is of material contg. rare earth element covering support layer of large flat surface withstanding vibration

Also Published As

Publication number Publication date
ES310283A1 (en) 1965-06-01
BE660855A (en) 1965-09-09
AT248553B (en) 1966-08-10
DE1219128B (en) 1966-06-16
NL6402479A (en) 1965-09-13

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