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CH215769A - Cathode for electron tubes. - Google Patents

Cathode for electron tubes.

Info

Publication number
CH215769A
CH215769A CH215769DA CH215769A CH 215769 A CH215769 A CH 215769A CH 215769D A CH215769D A CH 215769DA CH 215769 A CH215769 A CH 215769A
Authority
CH
Switzerland
Prior art keywords
cathode
electron tubes
tubes
electron
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft C Lorenz
Original Assignee
Lorenz C Ag
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 Lorenz C Ag filed Critical Lorenz C Ag
Publication of CH215769A publication Critical patent/CH215769A/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)
CH215769D 1938-12-02 1939-11-28 Cathode for electron tubes. CH215769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE215769X 1938-12-02

Publications (1)

Publication Number Publication Date
CH215769A true CH215769A (en) 1941-07-15

Family

ID=5825698

Family Applications (1)

Application Number Title Priority Date Filing Date
CH215769D CH215769A (en) 1938-12-02 1939-11-28 Cathode for electron tubes.

Country Status (3)

Country Link
US (1) US2214902A (en)
CH (1) CH215769A (en)
FR (1) FR868423A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL69250C (en) * 1946-03-05
US2733319A (en) * 1950-07-14 1956-01-31 Material for electric contacts
US2879432A (en) * 1956-03-16 1959-03-24 Gen Electric Electron emitter
US3175904A (en) * 1961-10-30 1965-03-30 New England Materials Lab Inc Dispersion strengthening of platinumbase alloys

Also Published As

Publication number Publication date
FR868423A (en) 1941-12-30
US2214902A (en) 1940-09-17

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