GB491994A - Improvements in multi-electrode thermionic valves - Google Patents

Improvements in multi-electrode thermionic valves

Info

Publication number
GB491994A
GB491994A GB1844437A GB1844437A GB491994A GB 491994 A GB491994 A GB 491994A GB 1844437 A GB1844437 A GB 1844437A GB 1844437 A GB1844437 A GB 1844437A GB 491994 A GB491994 A GB 491994A
Authority
GB
United Kingdom
Prior art keywords
electrode
grid
cathode
grids
electrons
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
GB1844437A
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 GB1844437A priority Critical patent/GB491994A/en
Publication of GB491994A publication Critical patent/GB491994A/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

  • Particle Accelerators (AREA)

Abstract

491,994. Thermionic valves. M-0 VALVE CO., Ltd., ALDOUS, W. H., and WARREN, G. W. July 2, 1937, Nos. 18444/37 and 13445/38. [Class 39 (i)] In a thermionic valve of the type comprising a linear cathode, an accelerating electrode, and a retarding control electrode outside the accelerator electrode means are provided for ensuring that electrons returned by the control electrode shall be deflected in a direction having a considerable component in a direction at right-angles to the direction of the cathode from the electrode. In the arrangement shown in Fig. 2 (18444/37), the anodes 5, 5<1> with retarding control grids 4, 4<1> screening grids 7, 7<1>, and suppressor grids 8, 8<1> are so arranged that a normal to the anode surface passes clear of the cathode 1 ; electrons returned by the grids 4, 4<1> are collected by the electrodes 6, 61. The cathode 1 is surrounded by a control grid 2 and accelerating grid 3, and screen electrodes 9, 9<1> form the electrons into beams directed to the anodes 5, 5<1>. Fig. 1 (13445/38) shows an arrangement in which the electrons are formed by the electrodes 3 into a flat beam on each side of which are arranged the accelerating grid 4, retarding control grid 5 and screen grid 6.
GB1844437A 1937-07-02 1937-07-02 Improvements in multi-electrode thermionic valves Expired GB491994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1844437A GB491994A (en) 1937-07-02 1937-07-02 Improvements in multi-electrode thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1844437A GB491994A (en) 1937-07-02 1937-07-02 Improvements in multi-electrode thermionic valves

Publications (1)

Publication Number Publication Date
GB491994A true GB491994A (en) 1938-09-13

Family

ID=10112529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1844437A Expired GB491994A (en) 1937-07-02 1937-07-02 Improvements in multi-electrode thermionic valves

Country Status (1)

Country Link
GB (1) GB491994A (en)

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