CH258432A - Method of manufacturing the cathode of a discharge tube. - Google Patents

Method of manufacturing the cathode of a discharge tube.

Info

Publication number
CH258432A
CH258432A CH258432DA CH258432A CH 258432 A CH258432 A CH 258432A CH 258432D A CH258432D A CH 258432DA CH 258432 A CH258432 A CH 258432A
Authority
CH
Switzerland
Prior art keywords
cathode
manufacturing
discharge tube
discharge
tube
Prior art date
Application number
Other languages
French (fr)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH258432A publication Critical patent/CH258432A/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)
  • Solid Thermionic Cathode (AREA)
CH258432D 1944-11-04 1946-09-07 Method of manufacturing the cathode of a discharge tube. CH258432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE258432X 1944-11-04

Publications (1)

Publication Number Publication Date
CH258432A true CH258432A (en) 1948-11-30

Family

ID=3866699

Family Applications (1)

Application Number Title Priority Date Filing Date
CH258432D CH258432A (en) 1944-11-04 1946-09-07 Method of manufacturing the cathode of a discharge tube.

Country Status (5)

Country Link
BE (1) BE457759A (en)
CH (1) CH258432A (en)
DE (1) DE819296C (en)
FR (1) FR936338A (en)
GB (1) GB637385A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052578B (en) * 1953-06-18 1959-03-12 Siemens Ag Process for the production of an oxide cathode with a porous metal layer sintered onto the surface of the cathode body

Also Published As

Publication number Publication date
GB637385A (en) 1950-05-17
FR936338A (en) 1948-07-16
DE819296C (en) 1951-10-31
BE457759A (en)

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