FR942319A - Improvements to vacuum tubes - Google Patents

Improvements to vacuum tubes

Info

Publication number
FR942319A
FR942319A FR942319DA FR942319A FR 942319 A FR942319 A FR 942319A FR 942319D A FR942319D A FR 942319DA FR 942319 A FR942319 A FR 942319A
Authority
FR
France
Prior art keywords
vacuum tubes
tubes
vacuum
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR942319A publication Critical patent/FR942319A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/28—Non-electron-emitting electrodes; Screens
    • H01J19/38—Control electrodes, e.g. grid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0015—Non-sealed electrodes
    • H01J2893/0018—Bar or cage-like grids
FR942319D 1945-07-03 1947-02-26 Improvements to vacuum tubes Expired FR942319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US942319XA 1945-07-03 1945-07-03

Publications (1)

Publication Number Publication Date
FR942319A true FR942319A (en) 1949-02-04

Family

ID=22243908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR942319D Expired FR942319A (en) 1945-07-03 1947-02-26 Improvements to vacuum tubes

Country Status (1)

Country Link
FR (1) FR942319A (en)

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