GB602228A - Improvements in or relating to devices comprising electric discharge tubes - Google Patents

Improvements in or relating to devices comprising electric discharge tubes

Info

Publication number
GB602228A
GB602228A GB10600/46A GB1060046A GB602228A GB 602228 A GB602228 A GB 602228A GB 10600/46 A GB10600/46 A GB 10600/46A GB 1060046 A GB1060046 A GB 1060046A GB 602228 A GB602228 A GB 602228A
Authority
GB
United Kingdom
Prior art keywords
control grid
grids
relating
devices
turns
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
GB10600/46A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB602228A publication Critical patent/GB602228A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
    • H01J21/14—Tubes with means for concentrating the electron stream, e.g. beam tetrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0029—Electron beam tubes

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

602,228. Thermionic valves. PHILIPS LAMPS, Ltd. April 5, 1946, No. 10600. Convention date, Aug. 5, 1941. [Class 39 (i)] To improve the mutual conductance of a valve having a cathode 1, a control grid 4 maintained at low voltage; and an anode (not shown) exterior of the control grid, grids 2, 3 at a higher potential than the control grid and having turns aligned with each other and with those of the control grid, are arranged between the latter and the cathode to focus the electrons so that they pass centrally between the turns of the control grid. The control grid may be preceded by three grids whose turns together with those of the control grid are located one behind the other. Further grids may be arranged between the control grid and anode. The subject-matter is identical with that of Specification 567,889.
GB10600/46A 1941-08-05 1946-04-05 Improvements in or relating to devices comprising electric discharge tubes Expired GB602228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL602228X 1941-08-05

Publications (1)

Publication Number Publication Date
GB602228A true GB602228A (en) 1948-05-21

Family

ID=19787827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10600/46A Expired GB602228A (en) 1941-08-05 1946-04-05 Improvements in or relating to devices comprising electric discharge tubes

Country Status (1)

Country Link
GB (1) GB602228A (en)

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