GB1199575A - Improvements in or relating to Electron Beam Tubes. - Google Patents

Improvements in or relating to Electron Beam Tubes.

Info

Publication number
GB1199575A
GB1199575A GB5658866A GB5658866A GB1199575A GB 1199575 A GB1199575 A GB 1199575A GB 5658866 A GB5658866 A GB 5658866A GB 5658866 A GB5658866 A GB 5658866A GB 1199575 A GB1199575 A GB 1199575A
Authority
GB
United Kingdom
Prior art keywords
cathode
tube
electron beam
relating
coating
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
GB5658866A
Inventor
Maurice Esterson
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 GB5658866A priority Critical patent/GB1199575A/en
Publication of GB1199575A publication Critical patent/GB1199575A/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

Landscapes

  • Physical Vapour Deposition (AREA)

Abstract

1,199,575. Electron guns. ENGLISH ELECTRIC VALVE CO. Ltd. 26 Oct., 1967 [17 Dec., 1966], No. 56588/66. Heading H1D. In an electron beam tube, e.g. a klystron tube, the cathode 2 having a cathode coating 1 has a central hole 3 backed by a cylindrical cup-like structure 41, e.g. of molybdenum, for receiving positive ions returning to the cathode along the axis of the tube. The structure 41 completely closes off the hole 3 from the space behind the cathode, in which is situated the cathode heater, and so prevent molecules of material, released during processing of the tube, from passing from the rear of the cathode to the cathode coating.
GB5658866A 1966-12-17 1966-12-17 Improvements in or relating to Electron Beam Tubes. Expired GB1199575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5658866A GB1199575A (en) 1966-12-17 1966-12-17 Improvements in or relating to Electron Beam Tubes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5658866A GB1199575A (en) 1966-12-17 1966-12-17 Improvements in or relating to Electron Beam Tubes.

Publications (1)

Publication Number Publication Date
GB1199575A true GB1199575A (en) 1970-07-22

Family

ID=10477013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5658866A Expired GB1199575A (en) 1966-12-17 1966-12-17 Improvements in or relating to Electron Beam Tubes.

Country Status (1)

Country Link
GB (1) GB1199575A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178359A1 (en) * 1983-07-30 1986-04-23 English Electric Valve Company Limited Linear beam tubes
US4599542A (en) * 1983-07-30 1986-07-08 English Electric Valve Company Limited Linear beam tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178359A1 (en) * 1983-07-30 1986-04-23 English Electric Valve Company Limited Linear beam tubes
US4599542A (en) * 1983-07-30 1986-07-08 English Electric Valve Company Limited Linear beam tubes

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Legal Events

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