GB494100A - Improvements in or relating to thermionic valves - Google Patents

Improvements in or relating to thermionic valves

Info

Publication number
GB494100A
GB494100A GB1112837A GB1112837A GB494100A GB 494100 A GB494100 A GB 494100A GB 1112837 A GB1112837 A GB 1112837A GB 1112837 A GB1112837 A GB 1112837A GB 494100 A GB494100 A GB 494100A
Authority
GB
United Kingdom
Prior art keywords
cathode
relating
thermionic valves
thermionic
spacing member
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
GB1112837A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to NL49681D priority Critical patent/NL49681C/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1112837A priority patent/GB494100A/en
Priority to DEI60981D priority patent/DE763706C/en
Publication of GB494100A publication Critical patent/GB494100A/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
    • 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
    • H01J19/48—Mountings for individual electrodes

Landscapes

  • Details Of Valves (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

494,100. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., and BLACK, D. H. April 19, 1937, No. 11128. [Class 39 (i)] An indirectly-heated cathode 1 of a thermionic valve is sup ported within an aperture in a spacing member 5 by a four armed double spring member 3 4, of molybdenum, riveted tc member 5 and secured to a stem wire 2 projecting from the cathode. Rubbing contact between the cathode and spacing member and consequent noise a,re avoided.
GB1112837A 1937-04-19 1937-04-19 Improvements in or relating to thermionic valves Expired GB494100A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL49681D NL49681C (en) 1937-04-19
GB1112837A GB494100A (en) 1937-04-19 1937-04-19 Improvements in or relating to thermionic valves
DEI60981D DE763706C (en) 1937-04-19 1938-04-01 Arrangement for holding an indirectly heated glow cathode for electron tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1112837A GB494100A (en) 1937-04-19 1937-04-19 Improvements in or relating to thermionic valves

Publications (1)

Publication Number Publication Date
GB494100A true GB494100A (en) 1938-10-19

Family

ID=9980545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1112837A Expired GB494100A (en) 1937-04-19 1937-04-19 Improvements in or relating to thermionic valves

Country Status (3)

Country Link
DE (1) DE763706C (en)
GB (1) GB494100A (en)
NL (1) NL49681C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518308A (en) * 1948-09-14 1950-08-08 Bell Telephone Labor Inc Electron discharge device unit mounting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118368B (en) * 1958-04-10 1961-11-30 Siemens Edison Swan Ltd Incandescent cathode tubes, in which a tubular cathode and an anode surrounding this cathode are held by mica washers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT87845B (en) * 1917-01-23 1922-04-10 Siemens Ag Intermediate electrode in hot cathode tubes.
AT85417B (en) * 1918-04-16 1921-09-10 Siemens Ag Clamping device for the hot cathode of discharge tubes.
NL41316C (en) * 1934-05-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518308A (en) * 1948-09-14 1950-08-08 Bell Telephone Labor Inc Electron discharge device unit mounting

Also Published As

Publication number Publication date
DE763706C (en) 1953-11-09
NL49681C (en)

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