GB452054A - Improvements in and relating to heater elements for indirectly heated thermionic cathodes - Google Patents

Improvements in and relating to heater elements for indirectly heated thermionic cathodes

Info

Publication number
GB452054A
GB452054A GB613935A GB613935A GB452054A GB 452054 A GB452054 A GB 452054A GB 613935 A GB613935 A GB 613935A GB 613935 A GB613935 A GB 613935A GB 452054 A GB452054 A GB 452054A
Authority
GB
United Kingdom
Prior art keywords
helix
relating
thermionic cathodes
heater elements
indirectly heated
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
GB613935A
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.)
MO Valve Co Ltd
Original Assignee
MO Valve Co 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
Priority to BE413564D priority Critical patent/BE413564A/xx
Application filed by MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB613935A priority patent/GB452054A/en
Priority to FR801403D priority patent/FR801403A/fr
Publication of GB452054A publication Critical patent/GB452054A/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
    • H01J1/22—Heaters

Landscapes

  • Solid Thermionic Cathode (AREA)
GB613935A 1935-02-26 1935-02-26 Improvements in and relating to heater elements for indirectly heated thermionic cathodes Expired GB452054A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE413564D BE413564A (enrdf_load_stackoverflow) 1935-02-26
GB613935A GB452054A (en) 1935-02-26 1935-02-26 Improvements in and relating to heater elements for indirectly heated thermionic cathodes
FR801403D FR801403A (fr) 1935-02-26 1936-01-29 éléments chauffants pour cathodes tubulaires chauffées indirectement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB613935A GB452054A (en) 1935-02-26 1935-02-26 Improvements in and relating to heater elements for indirectly heated thermionic cathodes

Publications (1)

Publication Number Publication Date
GB452054A true GB452054A (en) 1936-08-17

Family

ID=9809130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB613935A Expired GB452054A (en) 1935-02-26 1935-02-26 Improvements in and relating to heater elements for indirectly heated thermionic cathodes

Country Status (3)

Country Link
BE (1) BE413564A (enrdf_load_stackoverflow)
FR (1) FR801403A (enrdf_load_stackoverflow)
GB (1) GB452054A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR801403A (fr) 1936-08-04
BE413564A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US2412302A (en) Getter
GB452054A (en) Improvements in and relating to heater elements for indirectly heated thermionic cathodes
GB230183A (en) Improvements in or relating to x-ray tubes
GB492983A (en) Improvements in or relating to electron discharge valves
GB491176A (en) Improvements in high-pressure metal-vapour electric discharge devices
GB385898A (en) Improvements in and relating to electric discharge devices
GB173363A (en) Improvements in vacuum or low-pressure bulb electron-discharge apparatus
GB486068A (en) Improvements in and relating to the gettering of metallic bulb electric discharge tubes
GB335573A (en) Improvements in thermionic cathodes of vacuum electric tube devices
GB499532A (en) Improvements in or relating to cathode ray tubes and the like
GB217647A (en) Improvements in or relating to vacuum electric tube devices
GB430436A (en) Improvements in and relating to electron discharge tubes
GB297495A (en) Improvements in or relating to thermionic discharge tubes
GB289975A (en) Improvements in or relating to electric vacuum or gas-filled tubes
GB464809A (en) Improvements in or relating to electric discharge devices
GB357632A (en) Low temperature emissive cathodes for electric discharge devices
GB400058A (en) Improvements relating to indirectly heated cathodes for electron discharge devices
GB194882A (en) Improvements in electron discharge apparatus such as thermionic tubes
GB187261A (en) Improvements in thermionic devices
GB427664A (en) Improvements in or relating to electric discharge devices
GB491179A (en) Improvements in thermionic cathodes for electric discharge devices
GB415570A (en) Improvements in or relating to electric discharge tubes
GB404646A (en) Improvements in or relating to thermionic devices
GB435957A (en) Improvements in thermionic cathodes
GB505096A (en) Improvements in and relating to electric discharge lamps