CH403090A - Hot cathode for electron tubes and process for their manufacture - Google Patents

Hot cathode for electron tubes and process for their manufacture

Info

Publication number
CH403090A
CH403090A CH1142262A CH1142262A CH403090A CH 403090 A CH403090 A CH 403090A CH 1142262 A CH1142262 A CH 1142262A CH 1142262 A CH1142262 A CH 1142262A CH 403090 A CH403090 A CH 403090A
Authority
CH
Switzerland
Prior art keywords
manufacture
hot cathode
electron tubes
tubes
electron
Prior art date
Application number
CH1142262A
Other languages
German (de)
Inventor
Meier Walter Dr Chem
Original Assignee
Patelhold Patentverwertung
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 Patelhold Patentverwertung filed Critical Patelhold Patentverwertung
Priority to CH1142262A priority Critical patent/CH403090A/en
Priority to GB3770963A priority patent/GB1015272A/en
Priority to FR44028A priority patent/FR1370363A/en
Priority to NL298401D priority patent/NL298401A/xx
Publication of CH403090A publication Critical patent/CH403090A/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
    • H01J1/14—Solid thermionic cathodes characterised by the 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
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
CH1142262A 1962-09-27 1962-09-27 Hot cathode for electron tubes and process for their manufacture CH403090A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1142262A CH403090A (en) 1962-09-27 1962-09-27 Hot cathode for electron tubes and process for their manufacture
GB3770963A GB1015272A (en) 1962-09-27 1963-09-25 Incandescent cathode for electronic valves and process for producing same
FR44028A FR1370363A (en) 1962-09-27 1963-09-25 Hot cathode for electron tubes and process for their manufacture
NL298401D NL298401A (en) 1962-09-27 1963-09-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1142262A CH403090A (en) 1962-09-27 1962-09-27 Hot cathode for electron tubes and process for their manufacture

Publications (1)

Publication Number Publication Date
CH403090A true CH403090A (en) 1965-11-30

Family

ID=4373329

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1142262A CH403090A (en) 1962-09-27 1962-09-27 Hot cathode for electron tubes and process for their manufacture

Country Status (4)

Country Link
CH (1) CH403090A (en)
FR (1) FR1370363A (en)
GB (1) GB1015272A (en)
NL (1) NL298401A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814016B2 (en) * 1978-03-31 1983-03-17 株式会社日立製作所 Substrate metal plate material for directly heated oxide cathode
US7795792B2 (en) * 2006-02-08 2010-09-14 Varian Medical Systems, Inc. Cathode structures for X-ray tubes

Also Published As

Publication number Publication date
FR1370363A (en) 1964-08-21
NL298401A (en) 1965-11-25
GB1015272A (en) 1965-12-31

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