GB958224A - Improvements in or relating to electric discharge tubes having an indirectly-heated cathode - Google Patents

Improvements in or relating to electric discharge tubes having an indirectly-heated cathode

Info

Publication number
GB958224A
GB958224A GB3149560A GB3149560A GB958224A GB 958224 A GB958224 A GB 958224A GB 3149560 A GB3149560 A GB 3149560A GB 3149560 A GB3149560 A GB 3149560A GB 958224 A GB958224 A GB 958224A
Authority
GB
United Kingdom
Prior art keywords
cathode
indirectly
relating
electric discharge
discharge tubes
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
GB3149560A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB958224A publication Critical patent/GB958224A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/26—Supports for the emissive material

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

958,224. Thermionic cathode tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 13, 1960 [Sept. 16, 1959], No. 31495/60. Heading H1D. In a discharge tube, an indirectly-heated tubular cathode 1 is located relative to an insulating member 2 by a metallic rod 6 welded on the cathode without deformation of the cathode. The rod 6 extends transversely of the cathode, intermediate its ends, and only contacts a part of the cathode periphery. The crosssection of the cathode 1 and/or the rod 6 may be circular instead of rectangular as shown.
GB3149560A 1959-09-16 1960-09-13 Improvements in or relating to electric discharge tubes having an indirectly-heated cathode Expired GB958224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL243411 1959-09-16

Publications (1)

Publication Number Publication Date
GB958224A true GB958224A (en) 1964-05-21

Family

ID=19751925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3149560A Expired GB958224A (en) 1959-09-16 1960-09-13 Improvements in or relating to electric discharge tubes having an indirectly-heated cathode

Country Status (3)

Country Link
CH (1) CH387178A (en)
DE (1) DE1143590B (en)
GB (1) GB958224A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843781A (en) * 1954-11-01 1958-07-15 Sylvania Electric Prod Sublimation reducing cathode connector

Also Published As

Publication number Publication date
CH387178A (en) 1965-01-31
DE1143590B (en) 1963-02-14

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