FR780258A - Lampe à cathode incandescente - Google Patents

Lampe à cathode incandescente

Info

Publication number
FR780258A
FR780258A FR780258DA FR780258A FR 780258 A FR780258 A FR 780258A FR 780258D A FR780258D A FR 780258DA FR 780258 A FR780258 A FR 780258A
Authority
FR
France
Prior art keywords
cathode lamp
incandescent cathode
incandescent
lamp
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
Other languages
English (en)
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 FR780258A publication Critical patent/FR780258A/fr
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
FR780258D 1933-11-03 1934-10-27 Lampe à cathode incandescente Expired FR780258A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE780258X 1933-11-03

Publications (1)

Publication Number Publication Date
FR780258A true FR780258A (fr) 1935-04-23

Family

ID=1552379

Family Applications (1)

Application Number Title Priority Date Filing Date
FR780258D Expired FR780258A (fr) 1933-11-03 1934-10-27 Lampe à cathode incandescente

Country Status (1)

Country Link
FR (1) FR780258A (fr)

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