NL272248A - - Google Patents

Info

Publication number
NL272248A
NL272248A NL272248DA NL272248A NL 272248 A NL272248 A NL 272248A NL 272248D A NL272248D A NL 272248DA NL 272248 A NL272248 A NL 272248A
Authority
NL
Netherlands
Application number
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 of NL272248A publication Critical patent/NL272248A/xx

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
    • H01J1/26—Supports for the emissive material
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Powder Metallurgy (AREA)
NL272248D 1960-12-15 NL272248A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR847062A FR1282691A (fr) 1960-12-15 1960-12-15 Perfectionnement aux cathodes à oxydes à chauffage indirect pour tubes électroniques

Publications (1)

Publication Number Publication Date
NL272248A true NL272248A (en:Method)

Family

ID=8744850

Family Applications (1)

Application Number Title Priority Date Filing Date
NL272248D NL272248A (en:Method) 1960-12-15

Country Status (6)

Country Link
US (1) US3262814A (en:Method)
DE (1) DE1146207B (en:Method)
FR (1) FR1282691A (en:Method)
GB (1) GB994471A (en:Method)
LU (1) LU40949A1 (en:Method)
NL (1) NL272248A (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500454A (en) * 1967-11-16 1970-03-10 Sylvania Electric Prod Insulator heater coating for heater-cathode assembly
US3958146A (en) * 1974-02-08 1976-05-18 Gte Sylvania Incorporated Fast warm up picture tube cathode cap having high heat emissivity surface on the interior thereof
US4009409A (en) * 1975-09-02 1977-02-22 Gte Sylvania Incorporated Fast warmup cathode and method of making same
NL8002665A (nl) * 1980-05-09 1981-12-01 Philips Nv Werkwijze voor het van een thermisch zwart oppervlak voorzien van een metalen onderdeel.
JPH0677435B2 (ja) * 1985-03-18 1994-09-28 株式会社日立製作所 傍熱形陰極の製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL81097C (en:Method) * 1947-02-15 Gen Electric
BE518861A (en:Method) * 1952-04-01
US2817572A (en) * 1954-04-06 1957-12-24 Telefunken Ges Fur Drahtlase T Electrodes for electron discharge tubes
US2891879A (en) * 1957-07-26 1959-06-23 Westinghouse Electric Corp Black coating of high thermal emissivity and process for applying the same
NL95320C (en:Method) * 1957-10-04
US2987423A (en) * 1958-09-26 1961-06-06 Rca Corp Heat radiating coatings
US3068337A (en) * 1958-12-05 1962-12-11 Gen Electric Vaporizer and method for making the same
NL101694C (en:Method) * 1959-03-06
DE1090774B (de) * 1959-03-20 1960-10-13 Siemens Ag Heizelement fuer mittelbar geheizte Kathoden und Verfahren zur Herstellung eines Isolierueberzuges

Also Published As

Publication number Publication date
US3262814A (en) 1966-07-26
FR1282691A (fr) 1962-01-27
GB994471A (en) 1965-06-10
DE1146207B (de) 1963-03-28
LU40949A1 (en:Method) 1962-02-12

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