GB1160823A - Improvements in or relating to Velocity Modulated Electron Beam Tubes - Google Patents

Improvements in or relating to Velocity Modulated Electron Beam Tubes

Info

Publication number
GB1160823A
GB1160823A GB1600667A GB1600667A GB1160823A GB 1160823 A GB1160823 A GB 1160823A GB 1600667 A GB1600667 A GB 1600667A GB 1600667 A GB1600667 A GB 1600667A GB 1160823 A GB1160823 A GB 1160823A
Authority
GB
United Kingdom
Prior art keywords
magnetic
cathode
leakage
magnetic member
relating
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
GB1600667A
Inventor
Cian Noel O'loughlin
Colin Stanley Molyneux
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.)
Teledyne UK Ltd
Original Assignee
English Electric 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 English Electric Valve Co Ltd filed Critical English Electric Valve Co Ltd
Priority to GB1600667A priority Critical patent/GB1160823A/en
Priority to CH505468A priority patent/CH469352A/en
Priority to NL6804872A priority patent/NL6804872A/xx
Priority to FR1559488D priority patent/FR1559488A/fr
Publication of GB1160823A publication Critical patent/GB1160823A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00

Landscapes

  • Microwave Tubes (AREA)

Abstract

1,160,823. Velocity - modulated tubes. ENGLISH ELECTRIC VALVE CO. Ltd. 15 Feb., 1968 [7 April, 1967], No. 16006/67. Heading H1D. In an electron gun for a klystron or a travelling wave tube in which a magnetic field extending along the beam path is arranged to provide, in the gun cathode region, a leakage magnetic field having lines conforming with the desired electron paths, the cathode is disposed within a magnetic member which shapes the leakage field, and a portion of which acts as a focusing electrode. As shown, the leakage field of the main magnetic system of the tube, the end of which system is constituted by magnetic member 1 having a non-magnetic insert of brass 1b, is shaped in the region of the anode 4a and the cathode 6 by a laterally adjustable annular polepiece 2, and by the magnetic member 5, the re-entrant portion 5b of which acts as the focusing electrode.
GB1600667A 1967-04-07 1967-04-07 Improvements in or relating to Velocity Modulated Electron Beam Tubes Expired GB1160823A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1600667A GB1160823A (en) 1967-04-07 1967-04-07 Improvements in or relating to Velocity Modulated Electron Beam Tubes
CH505468A CH469352A (en) 1967-04-07 1968-04-05 Velocity Modulated Electron Beam Tube
NL6804872A NL6804872A (en) 1967-04-07 1968-04-05
FR1559488D FR1559488A (en) 1967-04-07 1968-04-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1600667A GB1160823A (en) 1967-04-07 1967-04-07 Improvements in or relating to Velocity Modulated Electron Beam Tubes

Publications (1)

Publication Number Publication Date
GB1160823A true GB1160823A (en) 1969-08-06

Family

ID=10069494

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1600667A Expired GB1160823A (en) 1967-04-07 1967-04-07 Improvements in or relating to Velocity Modulated Electron Beam Tubes

Country Status (4)

Country Link
CH (1) CH469352A (en)
FR (1) FR1559488A (en)
GB (1) GB1160823A (en)
NL (1) NL6804872A (en)

Also Published As

Publication number Publication date
NL6804872A (en) 1968-10-08
CH469352A (en) 1969-02-28
FR1559488A (en) 1969-03-07

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees