GB528227A - Improvements in or relating to thermionic valves - Google Patents

Improvements in or relating to thermionic valves

Info

Publication number
GB528227A
GB528227A GB1298939A GB1298939A GB528227A GB 528227 A GB528227 A GB 528227A GB 1298939 A GB1298939 A GB 1298939A GB 1298939 A GB1298939 A GB 1298939A GB 528227 A GB528227 A GB 528227A
Authority
GB
United Kingdom
Prior art keywords
anode
grid
electrode
high potential
thermionic
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
GB1298939A
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co Ltd
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 MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB1298939A priority Critical patent/GB528227A/en
Publication of GB528227A publication Critical patent/GB528227A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/003—Tubes with plural electrode systems

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

528,227. Thermionic valves. M-OVALVE CO., Ltd., and ALDOUS, W. H. May 1, 1939, No. 12989. [Class 39 (i)] An electric discharge device, adapted for use in the circuit described in Specification 528,228, comprises within the same envelope 5, a thermionic cathode 1, anode 4, and control grid 2, with or without a screen grid 3, a secondary emissive target 11 and a collector electrode 10 which is connected to or formed integral with the anode 4. A grid 9 between the cathode and electrode 10 is biased so that electrons pass only when the electrode 10 is at a high potential. In a modification, the electrons are focused into a beam and are deflected to reach the secondary emissive target by passing through an aperture in the anode when the latter has a high potential. The deflecting means consists of two plates to which the requisite potentials are given, for example by connection to the anode and screen grid.
GB1298939A 1939-05-01 1939-05-01 Improvements in or relating to thermionic valves Expired GB528227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1298939A GB528227A (en) 1939-05-01 1939-05-01 Improvements in or relating to thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1298939A GB528227A (en) 1939-05-01 1939-05-01 Improvements in or relating to thermionic valves

Publications (1)

Publication Number Publication Date
GB528227A true GB528227A (en) 1940-10-24

Family

ID=10014785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1298939A Expired GB528227A (en) 1939-05-01 1939-05-01 Improvements in or relating to thermionic valves

Country Status (1)

Country Link
GB (1) GB528227A (en)

Similar Documents

Publication Publication Date Title
GB821295A (en) Improvements in or relating to electron discharge devices incorporating electron lenses
GB556046A (en) Improvements relating to electron guns such as are used in cathode ray tubes
GB495531A (en) Cathode ray device
GB803221A (en) Improvements relating to electron guns
GB618430A (en) Improvements in electric discharge devices
GB538021A (en) Cathode ray tube devices
GB528227A (en) Improvements in or relating to thermionic valves
GB629881A (en) Improvements in electric discharge tubes comprising secondary emission electrodes
GB481012A (en) Improvements in and relating to devices utilising secondary electron emission
GB514297A (en) Improvements in or relating to electron multipliers and circuits therefor
US2227025A (en) Electron tube arrangement
GB497589A (en) Improvements in or relating to electric discharge tubes
GB922537A (en) Improvements in or relating to devices comprising a cathode-ray tube
GB609845A (en) Improvements in or relating to circuits for electric discharge tubes
GB532920A (en) Improvements in or relating to electron discharge apparatus
GB499971A (en) Improvements in or relating to thermionic valves
JPS57163952A (en) Electron gun for braun tube
GB478613A (en) Improvements in or relating to secondary emission electron multipliers
GB534208A (en) Improvements in or relating to electric discharge devices
GB820885A (en) Improvements in control electrodes for gas-filled electric discharge devices
GB560689A (en) Improvements in electron beam deflection valves
GB533732A (en) Electron discharge devices employing secondary electron emission
GB697559A (en) Improvements in circuits comprising electric discharge tubes of the electron-beam type
GB496839A (en) Improvements in or relating to thermionic valves
GB640747A (en) Improvements in or relating to velocity-modulated electron discharge tubes