GB644783A - Improvements in electric discharge tubes - Google Patents

Improvements in electric discharge tubes

Info

Publication number
GB644783A
GB644783A GB13788/47A GB1378847A GB644783A GB 644783 A GB644783 A GB 644783A GB 13788/47 A GB13788/47 A GB 13788/47A GB 1378847 A GB1378847 A GB 1378847A GB 644783 A GB644783 A GB 644783A
Authority
GB
United Kingdom
Prior art keywords
electrodes
nickel
electric discharge
microns
wire core
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
GB13788/47A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB644783A publication Critical patent/GB644783A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

644,783. High-frequency discharge apparatus. PHILIPS LAMPS, Ltd. May 22, 1947, No. 13788. Convention date, June 16, 1944. [Class 39 (i)] In an electric discharge tube for use with very short waves, two or more electrodes, for example the electrodes 1, 2 of a diode, are located at a distance apart not exceeding 100 microns and preferably between 20 and 40 microns, by one or more spacing members each consisting of a wire core 3 coated with insulating material 4, which is embraced at each end by a metal part 5 secured to the end of one of the electrodes. The wire core 3 may be of a material having a low coefficient of expansion such as a nickel-iron or chromium-nickel alloy, nickel tungsten or molybdenum, and the metal parts 5 may be of like material. The insulating material may consist of magnesium, aluminium or beryllium oxides. The metal parts 5 may be rings or as shown helices which grip the insulating layer and are. spot-welded to the electrodes.
GB13788/47A 1944-06-16 1947-05-22 Improvements in electric discharge tubes Expired GB644783A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL644783X 1944-06-16

Publications (1)

Publication Number Publication Date
GB644783A true GB644783A (en) 1950-10-18

Family

ID=19791889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13788/47A Expired GB644783A (en) 1944-06-16 1947-05-22 Improvements in electric discharge tubes

Country Status (1)

Country Link
GB (1) GB644783A (en)

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