BE759174A - RESERVE CATHODE AND ITS REALIZATION PROCESS - Google Patents

RESERVE CATHODE AND ITS REALIZATION PROCESS

Info

Publication number
BE759174A
BE759174A BE759174DA BE759174A BE 759174 A BE759174 A BE 759174A BE 759174D A BE759174D A BE 759174DA BE 759174 A BE759174 A BE 759174A
Authority
BE
Belgium
Prior art keywords
realization process
reserve cathode
reserve
cathode
realization
Prior art date
Application number
Other languages
French (fr)
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.)
Publication date
Publication of BE759174A publication Critical patent/BE759174A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
BE759174D 1969-11-21 RESERVE CATHODE AND ITS REALIZATION PROCESS BE759174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6917538A NL6917538A (en) 1969-11-21 1969-11-21

Publications (1)

Publication Number Publication Date
BE759174A true BE759174A (en) 1971-05-19

Family

ID=19808445

Family Applications (1)

Application Number Title Priority Date Filing Date
BE759174D BE759174A (en) 1969-11-21 RESERVE CATHODE AND ITS REALIZATION PROCESS

Country Status (6)

Country Link
BE (1) BE759174A (en)
CA (1) CA960007A (en)
DE (1) DE2054698A1 (en)
FR (1) FR2069601A5 (en)
GB (1) GB1264087A (en)
NL (1) NL6917538A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2808134A1 (en) * 1978-02-25 1979-08-30 Licentia Gmbh Long-life cathode with porous two layer emitter - has emitting layer thinner and of lower porosity than supporting layer
DE2822665A1 (en) * 1978-05-05 1979-11-08 Bbc Brown Boveri & Cie GLOW CATHODE MATERIAL
DE2842079A1 (en) * 1978-09-27 1980-04-03 Siemens Ag SUPPLY CATHODE, ESPECIALLY METAL CAPILLARY CATHODE
FR2469792A1 (en) * 1979-11-09 1981-05-22 Thomson Csf THERMO-IONIC CATHODE, ITS MANUFACTURING METHOD, AND ELECTRONIC TUBE INCORPORATING SUCH A CATHODE
FR2494035A1 (en) * 1980-11-07 1982-05-14 Thomson Csf THERMO-ELECTRONIC CATHODE FOR MICROFREQUENCY TUBE AND TUBE INCORPORATING SUCH A CATHODE
JPS58100329A (en) * 1981-12-11 1983-06-15 Toshiba Corp Cathode structure for electron tube
DE3336489A1 (en) * 1983-10-07 1985-04-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Indirectly heated dispenser cathode
GB2188771B (en) * 1986-04-01 1990-12-19 Ceradyne Inc Dispenser cathode and method of manufacture therefor
GB2196786A (en) * 1986-10-27 1988-05-05 Ceradyne Inc Cathode assembly
KR930007461B1 (en) * 1991-04-23 1993-08-11 주식회사 금성사 Method of making a dispenser type cathode
DE4114856A1 (en) * 1991-05-07 1992-11-12 Licentia Gmbh STOCK CATHODE AND METHOD FOR THE PRODUCTION THEREOF
FR2683090A1 (en) * 1991-10-25 1993-04-30 Europ Composants Electron Dispenser cathode and method of manufacture of such a cathode

Also Published As

Publication number Publication date
GB1264087A (en) 1972-02-16
DE2054698A1 (en) 1971-11-18
CA960007A (en) 1974-12-31
NL6917538A (en) 1971-05-25
FR2069601A5 (en) 1971-09-03

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