FR948446A - Indirectly heated cathode - Google Patents

Indirectly heated cathode

Info

Publication number
FR948446A
FR948446A FR948446DA FR948446A FR 948446 A FR948446 A FR 948446A FR 948446D A FR948446D A FR 948446DA FR 948446 A FR948446 A FR 948446A
Authority
FR
France
Prior art keywords
indirectly heated
heated cathode
cathode
indirectly
heated
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.)
SIF Societe Independante de Telegraphie Sans Fil
Original Assignee
SIF Societe Independante de Telegraphie Sans Fil
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 SIF Societe Independante de Telegraphie Sans Fil filed Critical SIF Societe Independante de Telegraphie Sans Fil
Application granted granted Critical
Publication of FR948446A publication Critical patent/FR948446A/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
FR948446D 1947-06-10 1947-06-10 Indirectly heated cathode Expired FR948446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR948446T 1947-06-10

Publications (1)

Publication Number Publication Date
FR948446A true FR948446A (en) 1949-08-01

Family

ID=9474028

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948446D Expired FR948446A (en) 1947-06-10 1947-06-10 Indirectly heated cathode

Country Status (1)

Country Link
FR (1) FR948446A (en)

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