FR1260743A - Method for manufacturing indirectly heated cathodes for electron tubes and cathodes manufactured using this method - Google Patents

Method for manufacturing indirectly heated cathodes for electron tubes and cathodes manufactured using this method

Info

Publication number
FR1260743A
FR1260743A FR823010A FR823010A FR1260743A FR 1260743 A FR1260743 A FR 1260743A FR 823010 A FR823010 A FR 823010A FR 823010 A FR823010 A FR 823010A FR 1260743 A FR1260743 A FR 1260743A
Authority
FR
France
Prior art keywords
cathodes
indirectly heated
manufactured
electron tubes
manufacturing
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
FR823010A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Priority to FR823010A priority Critical patent/FR1260743A/en
Priority to GB1175561A priority patent/GB898448A/en
Application granted granted Critical
Publication of FR1260743A publication Critical patent/FR1260743A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01J1/24—Insulating layer or body located between heater and emissive material

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
FR823010A 1960-03-31 1960-03-31 Method for manufacturing indirectly heated cathodes for electron tubes and cathodes manufactured using this method Expired FR1260743A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR823010A FR1260743A (en) 1960-03-31 1960-03-31 Method for manufacturing indirectly heated cathodes for electron tubes and cathodes manufactured using this method
GB1175561A GB898448A (en) 1960-03-31 1961-03-30 Cathode assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR823010A FR1260743A (en) 1960-03-31 1960-03-31 Method for manufacturing indirectly heated cathodes for electron tubes and cathodes manufactured using this method

Publications (1)

Publication Number Publication Date
FR1260743A true FR1260743A (en) 1961-05-12

Family

ID=8728338

Family Applications (1)

Application Number Title Priority Date Filing Date
FR823010A Expired FR1260743A (en) 1960-03-31 1960-03-31 Method for manufacturing indirectly heated cathodes for electron tubes and cathodes manufactured using this method

Country Status (2)

Country Link
FR (1) FR1260743A (en)
GB (1) GB898448A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400294A (en) * 1964-12-07 1968-09-03 Gen Electric Heated cathode and method of manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400294A (en) * 1964-12-07 1968-09-03 Gen Electric Heated cathode and method of manufacture

Also Published As

Publication number Publication date
GB898448A (en) 1962-06-06

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