GB523574A - Improvements relating to thermionic valves - Google Patents

Improvements relating to thermionic valves

Info

Publication number
GB523574A
GB523574A GB51739A GB51739A GB523574A GB 523574 A GB523574 A GB 523574A GB 51739 A GB51739 A GB 51739A GB 51739 A GB51739 A GB 51739A GB 523574 A GB523574 A GB 523574A
Authority
GB
United Kingdom
Prior art keywords
filament
conductors
leading
filamentary
thermionic
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
GB51739A
Other languages
English (en)
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 BE471303D priority Critical patent/BE471303A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB51739A priority patent/GB523574A/en
Publication of GB523574A publication Critical patent/GB523574A/en
Priority to FR939426D priority patent/FR939426A/fr
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

Landscapes

  • Discharge Lamp (AREA)
GB51739A 1939-01-06 1939-01-06 Improvements relating to thermionic valves Expired GB523574A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE471303D BE471303A (enrdf_load_stackoverflow) 1939-01-06
GB51739A GB523574A (en) 1939-01-06 1939-01-06 Improvements relating to thermionic valves
FR939426D FR939426A (fr) 1939-01-06 1946-11-21 Lampes électroniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51739A GB523574A (en) 1939-01-06 1939-01-06 Improvements relating to thermionic valves

Publications (1)

Publication Number Publication Date
GB523574A true GB523574A (en) 1940-07-17

Family

ID=9705751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51739A Expired GB523574A (en) 1939-01-06 1939-01-06 Improvements relating to thermionic valves

Country Status (3)

Country Link
BE (1) BE471303A (enrdf_load_stackoverflow)
FR (1) FR939426A (enrdf_load_stackoverflow)
GB (1) GB523574A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE471303A (enrdf_load_stackoverflow)
FR939426A (fr) 1948-11-15

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