CH308666A - Cathode and process for its manufacture. - Google Patents

Cathode and process for its manufacture.

Info

Publication number
CH308666A
CH308666A CH308666DA CH308666A CH 308666 A CH308666 A CH 308666A CH 308666D A CH308666D A CH 308666DA CH 308666 A CH308666 A CH 308666A
Authority
CH
Switzerland
Prior art keywords
cathode
manufacture
Prior art date
Application number
Other languages
German (de)
Inventor
Reszvenytarsasag Villamossagi
Original Assignee
Egyesuelt Izzolampa
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 Egyesuelt Izzolampa filed Critical Egyesuelt Izzolampa
Publication of CH308666A publication Critical patent/CH308666A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • 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)
  • Discharge Lamp (AREA)
CH308666D 1951-01-11 1952-01-07 Cathode and process for its manufacture. CH308666A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU308666X 1951-01-11

Publications (1)

Publication Number Publication Date
CH308666A true CH308666A (en) 1955-07-31

Family

ID=10978745

Family Applications (1)

Application Number Title Priority Date Filing Date
CH308666D CH308666A (en) 1951-01-11 1952-01-07 Cathode and process for its manufacture.

Country Status (3)

Country Link
CH (1) CH308666A (en)
DE (1) DE1039650B (en)
GB (1) GB721837A (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE662921C (en) * 1929-11-20 1938-07-25 Loewe Opta Gmbh Process for the production of carriers for high-emission cathodes produced by the metal vapor process
GB374241A (en) * 1930-05-20 1932-06-09 Telefunken Gmbh Improvements in or relating to methods of manufacturing oxide cathodes for use in thermionic valves and other electric discharge devices
DE627176C (en) * 1931-07-05 1936-03-10 Siemens & Halske Akt Ges Indirectly heated cathode
AT151497B (en) * 1934-03-22 1937-11-10 Telefunken Gmbh Indirectly heated, dark-emitting cathode.
GB472333A (en) * 1936-04-03 1937-09-22 Patent Truehand Ges Fuer Elek Improvements in and relating to thermionic electrodes
DE724142C (en) * 1938-06-09 1942-08-21 Siemens Ag Incandescent cathode, the cathode body of which has a cavity provided with emission material
NL59317C (en) * 1941-10-15 1946-06-15

Also Published As

Publication number Publication date
GB721837A (en) 1955-01-12
DE1039650B (en) 1958-09-25

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