GB395660A - Improvements in and relating to electric discharge devices - Google Patents

Improvements in and relating to electric discharge devices

Info

Publication number
GB395660A
GB395660A GB8672/33A GB867233A GB395660A GB 395660 A GB395660 A GB 395660A GB 8672/33 A GB8672/33 A GB 8672/33A GB 867233 A GB867233 A GB 867233A GB 395660 A GB395660 A GB 395660A
Authority
GB
United Kingdom
Prior art keywords
cathode
disc
tube
march
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
GB8672/33A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB395660A publication Critical patent/GB395660A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Electron Beam Exposure (AREA)

Abstract

395,660. Cathode-ray tubes. INTERNATIONAL, GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin:) March 22, 1933, No. 8672. Convention date, March 22, 1932. [Class 39 (i).] In a gas-filled tube an electrode, such as a disc 6 with a central aperture, is disposed between a Wehnelt cylinder 5 and a thermionic cathode 10 forming a concentrated source of electrons. The cathode consists of a nickel tube 7 containing a heating wire 8 separated by a partition 9 from a small cylinder 10 coated with barium oxide, the end, of the tube 7 being closed by a cap 11 having an aperture smaller than that in the disc 6. The disc is connected directly with the anode. Dimensions of the cathode and the distances between the electrodes are given.
GB8672/33A 1932-03-22 1933-03-22 Improvements in and relating to electric discharge devices Expired GB395660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE395660X 1932-03-22

Publications (1)

Publication Number Publication Date
GB395660A true GB395660A (en) 1933-07-20

Family

ID=6396885

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8672/33A Expired GB395660A (en) 1932-03-22 1933-03-22 Improvements in and relating to electric discharge devices

Country Status (2)

Country Link
DE (1) DE633205C (en)
GB (1) GB395660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892115A (en) * 1955-12-20 1959-06-23 Itt Cathode structures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE761089C (en) * 1937-12-31 1954-04-29 Siemens & Halske A G Indirectly heated glow cathode for Braun tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892115A (en) * 1955-12-20 1959-06-23 Itt Cathode structures

Also Published As

Publication number Publication date
DE633205C (en) 1936-07-22

Similar Documents

Publication Publication Date Title
GB648955A (en) Improvements in electron-emitting electrodes for electric discharge tubes
GB494791A (en) Improvements in or relating to electron discharge devices
GB346957A (en) Improvements in and relating to electron discharge devices
GB395660A (en) Improvements in and relating to electric discharge devices
GB1406523A (en) Cathode ray tube
GB455927A (en) Improvements in or relating to cathode ray tubes
GB443730A (en) Improvements in or relating to cathode ray tubes suitable for use for television and similar oscillograph purposes
GB453270A (en) Improvements in or relating to cathode ray tubes, preferably for television purposes
GB952148A (en) Cathode ray tube screen intensifier
GB743200A (en) Improvements in or relating to cathode ray tubes
GB440094A (en) Improvements in or relating to electron emitters for electron discharge devices
GB420663A (en) Improvements in luminous electric discharge tubes
GB395529A (en) Improvements in and relating to electric discharge tubes
GB434643A (en) Improvements in or relating to electron discharge devices
GB500017A (en) Improvements in cathode ray tubes
GB802108A (en) Improvements in or relating to electron guns for cathode ray tubes
GB397939A (en) Improvements in and relating to electric discharge devices
GB403018A (en) Improvements in and relating to cathode-ray apparatus
GB415398A (en) Improvements relating to indirectly heated cathodes for electron discharge devices
GB387275A (en) Improvements in and relating to cathode ray tubes
GB415165A (en) Improvements in or relating to electric discharge tubes
GB374425A (en) Improvements in and relating to electric glow discharge amplifying tubes
GB479920A (en) Improvements in and relating to electric discharge devices
GB429872A (en) Improvements in electric discharge devices
GB514735A (en) Improvements in or relating to electric discharge devices