AT248553B - Indirectly heatable cathode for electrical discharge tubes with a heating wire which is separated from the carrier of the emitting layer by an insulating oxide layer - Google Patents

Indirectly heatable cathode for electrical discharge tubes with a heating wire which is separated from the carrier of the emitting layer by an insulating oxide layer

Info

Publication number
AT248553B
AT248553B AT200665A AT200665A AT248553B AT 248553 B AT248553 B AT 248553B AT 200665 A AT200665 A AT 200665A AT 200665 A AT200665 A AT 200665A AT 248553 B AT248553 B AT 248553B
Authority
AT
Austria
Prior art keywords
carrier
separated
heating wire
electrical discharge
discharge tubes
Prior art date
Application number
AT200665A
Other languages
German (de)
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
Application granted granted Critical
Publication of AT248553B publication Critical patent/AT248553B/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22Heaters
AT200665A 1964-03-11 1965-03-08 Indirectly heatable cathode for electrical discharge tubes with a heating wire which is separated from the carrier of the emitting layer by an insulating oxide layer AT248553B (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
AT248553B true AT248553B (en) 1966-08-10

Family

ID=19789541

Family Applications (1)

Application Number Title Priority Date Filing Date
AT200665A AT248553B (en) 1964-03-11 1965-03-08 Indirectly heatable cathode for electrical discharge tubes with a heating wire which is separated from the carrier of the emitting layer by an insulating oxide layer

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
NL6402479A (en) 1965-09-13
DE1219128B (en) 1966-06-16
BE660855A (en) 1965-09-09
ES310283A1 (en) 1965-06-01
FR1430540A (en) 1966-03-04

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