GB357444A - Improvements relating to electron discharge tubes or thermionic valves - Google Patents

Improvements relating to electron discharge tubes or thermionic valves

Info

Publication number
GB357444A
GB357444A GB38174/30A GB3817430A GB357444A GB 357444 A GB357444 A GB 357444A GB 38174/30 A GB38174/30 A GB 38174/30A GB 3817430 A GB3817430 A GB 3817430A GB 357444 A GB357444 A GB 357444A
Authority
GB
United Kingdom
Prior art keywords
electron discharge
hooks
thermionic valves
improvements relating
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
GB38174/30A
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.)
Koninklijke Philips NV
Original Assignee
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB357444A publication Critical patent/GB357444A/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements

Landscapes

  • Discharge Lamp (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

357,444. Thermionic valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Dec. 18, 1930, No. 38174. Convention date, July 19. [Class 39 (i).] The cathode 6 of a thermionic valve or other electron discharge tube is supported at points 10 between its ends and is soldered to the supports at these positions. The supports at the points 10 which do not serve to lead in the current may consist of hooks made of molybdenum and the filament may be soldered to the hooks by means of silver oxide mixed with water which is reduced to metallic silver on heating. The hooks may consist of springs to keep the cathode under tension.
GB38174/30A 1930-07-19 1930-12-18 Improvements relating to electron discharge tubes or thermionic valves Expired GB357444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL357444X 1930-07-19

Publications (1)

Publication Number Publication Date
GB357444A true GB357444A (en) 1931-09-24

Family

ID=19785273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38174/30A Expired GB357444A (en) 1930-07-19 1930-12-18 Improvements relating to electron discharge tubes or thermionic valves

Country Status (4)

Country Link
DE (1) DE602586C (en)
FR (1) FR718794A (en)
GB (1) GB357444A (en)
NL (1) NL35560C (en)

Also Published As

Publication number Publication date
NL35560C (en)
FR718794A (en) 1932-01-28
DE602586C (en) 1934-09-12

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