FR89900E - Cathode for electron tubes - Google Patents

Cathode for electron tubes

Info

Publication number
FR89900E
FR89900E FR58459A FR58459A FR89900E FR 89900 E FR89900 E FR 89900E FR 58459 A FR58459 A FR 58459A FR 58459 A FR58459 A FR 58459A FR 89900 E FR89900 E FR 89900E
Authority
FR
France
Prior art keywords
cathode
electron tubes
tubes
electron
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
FR58459A
Other languages
French (fr)
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 and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
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 DES96678A external-priority patent/DE1228344B/en
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to FR58459A priority Critical patent/FR89900E/en
Application granted granted Critical
Publication of FR89900E publication Critical patent/FR89900E/en
Expired legal-status Critical Current

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)
FR58459A 1965-04-22 1966-04-21 Cathode for electron tubes Expired FR89900E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR58459A FR89900E (en) 1965-04-22 1966-04-21 Cathode for electron tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES96678A DE1228344B (en) 1965-04-22 1965-04-22 Storage cathode for electrical discharge vessels and process for their manufacture
FR58459A FR89900E (en) 1965-04-22 1966-04-21 Cathode for electron tubes

Publications (1)

Publication Number Publication Date
FR89900E true FR89900E (en) 1967-09-01

Family

ID=25998056

Family Applications (1)

Application Number Title Priority Date Filing Date
FR58459A Expired FR89900E (en) 1965-04-22 1966-04-21 Cathode for electron tubes

Country Status (1)

Country Link
FR (1) FR89900E (en)

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