CH270976A - Electric discharge tube with an indirectly heatable cathode. - Google Patents

Electric discharge tube with an indirectly heatable cathode.

Info

Publication number
CH270976A
CH270976A CH270976DA CH270976A CH 270976 A CH270976 A CH 270976A CH 270976D A CH270976D A CH 270976DA CH 270976 A CH270976 A CH 270976A
Authority
CH
Switzerland
Prior art keywords
discharge tube
electric discharge
indirectly heatable
heatable cathode
cathode
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH270976A publication Critical patent/CH270976A/en

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
CH270976D 1948-03-15 1949-03-14 Electric discharge tube with an indirectly heatable cathode. CH270976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL270976X 1948-03-15

Publications (1)

Publication Number Publication Date
CH270976A true CH270976A (en) 1950-09-30

Family

ID=19781927

Family Applications (1)

Application Number Title Priority Date Filing Date
CH270976D CH270976A (en) 1948-03-15 1949-03-14 Electric discharge tube with an indirectly heatable cathode.

Country Status (7)

Country Link
US (1) US2593856A (en)
BE (1) BE487889A (en)
CH (1) CH270976A (en)
DE (1) DE809324C (en)
FR (1) FR983147A (en)
GB (1) GB676009A (en)
NL (1) NL68498C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869692A (en) * 1973-05-07 1975-03-04 Gte Sylvania Inc Heater for vacuum tube cathode in which the wire of the heater legs has been etched to reduce its diameter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US247097A (en) * 1881-09-13 Joseph v
NL24661C (en) * 1927-11-16
US2075876A (en) * 1927-12-28 1937-04-06 Electrons Inc Cathode organization
US1914883A (en) * 1929-10-22 1933-06-20 Frederick G Cottrell Method and apparatus for producing ions
US1968280A (en) * 1933-05-01 1934-07-31 Grigsby Grunow Co Cathode structure
US2399402A (en) * 1941-04-08 1946-04-30 Bendix Aviat Corp Electrical connecting and radioshielding means
US2403445A (en) * 1941-05-31 1946-07-09 Bell Telephone Labor Inc Electron discharge device
US2403444A (en) * 1941-05-31 1946-07-09 Bell Telephone Labor Inc Electron discharge device

Also Published As

Publication number Publication date
NL68498C (en)
FR983147A (en) 1951-06-19
GB676009A (en) 1952-07-23
US2593856A (en) 1952-04-22
BE487889A (en)
DE809324C (en) 1951-07-26

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