FR783739A - Incandescent cathode improvements - Google Patents

Incandescent cathode improvements

Info

Publication number
FR783739A
FR783739A FR783739DA FR783739A FR 783739 A FR783739 A FR 783739A FR 783739D A FR783739D A FR 783739DA FR 783739 A FR783739 A FR 783739A
Authority
FR
France
Prior art keywords
incandescent cathode
incandescent
cathode
cathode improvements
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
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR783739A publication Critical patent/FR783739A/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
FR783739D 1934-01-12 1935-01-08 Incandescent cathode improvements Expired FR783739A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE783739X 1934-01-12

Publications (1)

Publication Number Publication Date
FR783739A true FR783739A (en) 1935-07-18

Family

ID=6697981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR783739D Expired FR783739A (en) 1934-01-12 1935-01-08 Incandescent cathode improvements

Country Status (1)

Country Link
FR (1) FR783739A (en)

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