GB357632A - Low temperature emissive cathodes for electric discharge devices - Google Patents

Low temperature emissive cathodes for electric discharge devices

Info

Publication number
GB357632A
GB357632A GB1947130A GB1947130A GB357632A GB 357632 A GB357632 A GB 357632A GB 1947130 A GB1947130 A GB 1947130A GB 1947130 A GB1947130 A GB 1947130A GB 357632 A GB357632 A GB 357632A
Authority
GB
United Kingdom
Prior art keywords
electric discharge
low temperature
discharge devices
emissive cathodes
temperature emissive
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
GB1947130A
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 NL36224D priority Critical patent/NL36224C/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1947130A priority patent/GB357632A/en
Priority to DE1930622973D priority patent/DE622973C/en
Publication of GB357632A publication Critical patent/GB357632A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Microwave Tubes (AREA)

Abstract

The core wire of a thermionic cathode of an electric discharge tube consists of an alloy of equal proportions of tungsten and molybdenum only.
GB1947130A 1930-06-26 1930-06-26 Low temperature emissive cathodes for electric discharge devices Expired GB357632A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL36224D NL36224C (en) 1930-06-26
GB1947130A GB357632A (en) 1930-06-26 1930-06-26 Low temperature emissive cathodes for electric discharge devices
DE1930622973D DE622973C (en) 1930-06-26 1930-12-31 Highly emissive glow cathode for electron tubes with an oxidized core made of a tungsten-molybdenum alloy using the metal vapor process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1947130A GB357632A (en) 1930-06-26 1930-06-26 Low temperature emissive cathodes for electric discharge devices

Publications (1)

Publication Number Publication Date
GB357632A true GB357632A (en) 1931-09-28

Family

ID=10129904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1947130A Expired GB357632A (en) 1930-06-26 1930-06-26 Low temperature emissive cathodes for electric discharge devices

Country Status (3)

Country Link
DE (1) DE622973C (en)
GB (1) GB357632A (en)
NL (1) NL36224C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046201B (en) * 1955-04-18 1958-12-11 Philips Nv Filament for directly heated glow cathodes with an emission layer for battery tubes

Also Published As

Publication number Publication date
DE622973C (en) 1935-12-11
NL36224C (en)

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