GB446156A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB446156A
GB446156A GB28005/35A GB2800535A GB446156A GB 446156 A GB446156 A GB 446156A GB 28005/35 A GB28005/35 A GB 28005/35A GB 2800535 A GB2800535 A GB 2800535A GB 446156 A GB446156 A GB 446156A
Authority
GB
United Kingdom
Prior art keywords
cathode
relating
oct
discharge devices
electron discharge
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
GB28005/35A
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Publication of GB446156A publication Critical patent/GB446156A/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

Landscapes

  • Electron Sources, Ion Sources (AREA)

Abstract

446,156. Thermionic valves. SOC. FRANCAISE RADIO-ELECTRIQUE, 79, Boulevard Haussmann, Paris. Oct. 10, 1935, No. 28005. Convention date, Oct. 26, 1934. [Class 39 (i)] A grid electrode arranged in the electron stream from the cathode 2, Fig. 5, to the cylindrical anode 3 is constituted by conductive elements 1 which lie on a cylindrical surface between the cathode 2 and anode 3 and which are concave in cross-section towards the cathode to reduce secondary emission from the grid. The elements 1 may be straight strips parallel to the cathode and of the crosssection shown in Fig. 4, or a concave strip may be wound helically.
GB28005/35A 1934-10-26 1935-10-10 Improvements in or relating to electron discharge devices Expired GB446156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR446156X 1934-10-26

Publications (1)

Publication Number Publication Date
GB446156A true GB446156A (en) 1936-04-24

Family

ID=8900514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28005/35A Expired GB446156A (en) 1934-10-26 1935-10-10 Improvements in or relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB446156A (en)

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