FR1303449A - Direct heated cathode for discharge tube - Google Patents

Direct heated cathode for discharge tube

Info

Publication number
FR1303449A
FR1303449A FR875836A FR875836A FR1303449A FR 1303449 A FR1303449 A FR 1303449A FR 875836 A FR875836 A FR 875836A FR 875836 A FR875836 A FR 875836A FR 1303449 A FR1303449 A FR 1303449A
Authority
FR
France
Prior art keywords
discharge tube
heated cathode
direct heated
direct
cathode
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
FR875836A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to FR875836A priority Critical patent/FR1303449A/en
Application granted granted Critical
Publication of FR1303449A publication Critical patent/FR1303449A/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • 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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
FR875836A 1960-10-14 1961-10-13 Direct heated cathode for discharge tube Expired FR1303449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR875836A FR1303449A (en) 1960-10-14 1961-10-13 Direct heated cathode for discharge tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL256883 1960-10-14
FR875836A FR1303449A (en) 1960-10-14 1961-10-13 Direct heated cathode for discharge tube

Publications (1)

Publication Number Publication Date
FR1303449A true FR1303449A (en) 1962-09-07

Family

ID=26192672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR875836A Expired FR1303449A (en) 1960-10-14 1961-10-13 Direct heated cathode for discharge tube

Country Status (1)

Country Link
FR (1) FR1303449A (en)

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