GB475106A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB475106A
GB475106A GB1347436A GB1347436A GB475106A GB 475106 A GB475106 A GB 475106A GB 1347436 A GB1347436 A GB 1347436A GB 1347436 A GB1347436 A GB 1347436A GB 475106 A GB475106 A GB 475106A
Authority
GB
United Kingdom
Prior art keywords
electrodes
cathode
valve
flat
apertures
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
GB1347436A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1347436A priority Critical patent/GB475106A/en
Publication of GB475106A publication Critical patent/GB475106A/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

  • Radiation-Therapy Devices (AREA)

Abstract

475,106. Electron - beam valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and SMITH, E. O. May 12, 1936, No. 13474. Drawings to Specification. [Class 39 (i)] In a valve having a plurality of beams from a single cathode the gun system comprises electrodes each having a plurality of apertures, corresponding apertures being in line with each other and with different parts of the flat cathode structure. In one form the flat, indirectly-heated, cathode has a rectangular emitting surface and parallel to it are arranged control, accelerating, and suppressor electrodes each of rectangular shape and having four slots arranged two by two. A single collector, or four collectors connected together may be employed. The electrodes may instead have a series of long or short parallel slots. In a modification, a set of electrodes may be arranged opposite each face of a flat cathode, and the valve may be operated in push-pull, or corresponding electrodes may be mechanically or electrically connected. Dimensions of a typical valve are given. Specifications 403,973 and 461,751 are referred to.
GB1347436A 1936-05-12 1936-05-12 Improvements in or relating to electron discharge devices Expired GB475106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1347436A GB475106A (en) 1936-05-12 1936-05-12 Improvements in or relating to electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1347436A GB475106A (en) 1936-05-12 1936-05-12 Improvements in or relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB475106A true GB475106A (en) 1937-11-12

Family

ID=10023614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1347436A Expired GB475106A (en) 1936-05-12 1936-05-12 Improvements in or relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB475106A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553184A (en) * 1947-02-01 1951-05-15 Sylvania Electric Prod Electron discharge device
US2570208A (en) * 1939-08-21 1951-10-09 Int Standard Electric Corp Electronic switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2570208A (en) * 1939-08-21 1951-10-09 Int Standard Electric Corp Electronic switch
US2553184A (en) * 1947-02-01 1951-05-15 Sylvania Electric Prod Electron discharge device

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