CA942825A - Dispenser cathodes for electron discharge tubes - Google Patents

Dispenser cathodes for electron discharge tubes

Info

Publication number
CA942825A
CA942825A CA094,451A CA94451A CA942825A CA 942825 A CA942825 A CA 942825A CA 94451 A CA94451 A CA 94451A CA 942825 A CA942825 A CA 942825A
Authority
CA
Canada
Prior art keywords
discharge tubes
electron discharge
dispenser cathodes
cathodes
dispenser
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA094,451A
Inventor
Horst Hofmann
Erwin Hubner
Helmut Katz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens 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
Priority claimed from DE19691951603 external-priority patent/DE1951603C3/en
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of CA942825A publication Critical patent/CA942825A/en
Expired legal-status Critical Current

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)
CA094,451A 1969-10-13 1970-09-30 Dispenser cathodes for electron discharge tubes Expired CA942825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691951603 DE1951603C3 (en) 1969-10-13 Manufacturing process of an indirectly heated storage cathode of large dimensions

Publications (1)

Publication Number Publication Date
CA942825A true CA942825A (en) 1974-02-26

Family

ID=5748073

Family Applications (1)

Application Number Title Priority Date Filing Date
CA094,451A Expired CA942825A (en) 1969-10-13 1970-09-30 Dispenser cathodes for electron discharge tubes

Country Status (2)

Country Link
US (1) US3681644A (en)
CA (1) CA942825A (en)

Also Published As

Publication number Publication date
US3681644A (en) 1972-08-01

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