CH323755A - Method of manufacturing a cathode for electron tubes - Google Patents

Method of manufacturing a cathode for electron tubes

Info

Publication number
CH323755A
CH323755A CH323755DA CH323755A CH 323755 A CH323755 A CH 323755A CH 323755D A CH323755D A CH 323755DA CH 323755 A CH323755 A CH 323755A
Authority
CH
Switzerland
Prior art keywords
cathode
manufacturing
electron tubes
tubes
electron
Prior art date
Application number
Other languages
German (de)
Inventor
Gysbert Jacob Dr Phil Ekkers
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
Publication of CH323755A publication Critical patent/CH323755A/en

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
    • H01J9/042—Manufacture, activation of the emissive part

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
CH323755D 1954-09-08 1954-09-08 Method of manufacturing a cathode for electron tubes CH323755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH806032X 1954-09-08

Publications (1)

Publication Number Publication Date
CH323755A true CH323755A (en) 1957-08-15

Family

ID=4538064

Family Applications (1)

Application Number Title Priority Date Filing Date
CH323755D CH323755A (en) 1954-09-08 1954-09-08 Method of manufacturing a cathode for electron tubes

Country Status (4)

Country Link
CH (1) CH323755A (en)
DE (1) DE1014235B (en)
FR (1) FR1131224A (en)
GB (1) GB806032A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151347C1 (en) * 1981-12-24 1983-05-05 Standard Elektrik Lorenz Ag, 7000 Stuttgart Process for forming glow cathodes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE443323C (en) * 1923-01-12 1927-04-26 Philips Nv Process for the manufacture of oxide cathodes
US2543439A (en) * 1945-05-02 1951-02-27 Edward A Coomes Method of manufacturing coated elements for electron tubes

Also Published As

Publication number Publication date
GB806032A (en) 1958-12-17
DE1014235B (en) 1957-08-22
FR1131224A (en) 1957-02-19

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