CH241098A - Process for the production of an indirectly heatable cathode. - Google Patents

Process for the production of an indirectly heatable cathode.

Info

Publication number
CH241098A
CH241098A CH241098DA CH241098A CH 241098 A CH241098 A CH 241098A CH 241098D A CH241098D A CH 241098DA CH 241098 A CH241098 A CH 241098A
Authority
CH
Switzerland
Prior art keywords
production
indirectly heatable
heatable cathode
cathode
indirectly
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 CH241098A publication Critical patent/CH241098A/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
CH241098D 1941-10-15 1942-10-13 Process for the production of an indirectly heatable cathode. CH241098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL103265A NL59317C (en) 1941-10-15 1941-10-15

Publications (1)

Publication Number Publication Date
CH241098A true CH241098A (en) 1946-02-15

Family

ID=19780546

Family Applications (1)

Application Number Title Priority Date Filing Date
CH241098D CH241098A (en) 1941-10-15 1942-10-13 Process for the production of an indirectly heatable cathode.

Country Status (7)

Country Link
US (1) US2495580A (en)
BE (1) BE447568A (en)
CH (1) CH241098A (en)
DE (1) DE846739C (en)
FR (1) FR886755A (en)
GB (1) GB611933A (en)
NL (1) NL59317C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039650B (en) * 1951-01-11 1958-09-25 Egyesuelt Izzolampa Cathode for discharge tubes and processes for their manufacture

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563573A (en) * 1951-08-07 Hot cathode electron tube which re
US3031740A (en) * 1958-03-12 1962-05-01 Eitel Mccullough Inc Matrix type cathode
FR2215699B1 (en) * 1973-01-30 1976-04-30 Commissariat Energie Atomique
US4987342A (en) * 1989-03-27 1991-01-22 Gte Products Corporation Self-ballasted glow discharge lamp having indirectly-heated cathode

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618499A (en) * 1923-11-06 1927-02-22 Charles P White Electrical apparatus
US2075876A (en) * 1927-12-28 1937-04-06 Electrons Inc Cathode organization
US2107945A (en) * 1934-11-20 1938-02-08 Gen Electric Cathode structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1039650B (en) * 1951-01-11 1958-09-25 Egyesuelt Izzolampa Cathode for discharge tubes and processes for their manufacture

Also Published As

Publication number Publication date
GB611933A (en) 1948-11-05
BE447568A (en) 1942-11-30
US2495580A (en) 1950-01-24
FR886755A (en) 1943-10-25
DE846739C (en) 1952-08-18
NL59317C (en) 1946-06-15

Similar Documents

Publication Publication Date Title
CH214631A (en) Process for the production of diazotypes.
CH241098A (en) Process for the production of an indirectly heatable cathode.
CH254797A (en) Process for making cryolite.
CH253808A (en) Process for the production of an impregnated sliver.
CH227355A (en) Process for the production of artificial structures.
CH246887A (en) Process for the production of artificial leather.
CH224979A (en) Process for the production of diazotypes.
CH226012A (en) Process for the production of acetyl peroxide.
CH236015A (en) Process for the production of perchlorethylene.
CH221732A (en) Process for the production of carbon bodies.
CH239848A (en) Process for the preparation of 6-sulfanilamido-4-methyl-pyrimidine.
CH236716A (en) Process for the production of x-chloro-e-methyl-e-caprolactam.
CH236713A (en) Process for the production of a-monochloro-e-caprolactam.
CH227123A (en) Process for the production of acetone peroxide.
CH219663A (en) Process for the production of moldings.
CH295066A (en) Process for the production of polyvinyl alcohol.
CH227347A (en) Process for the production of cellulose ethers.
CH236224A (en) Process for the preparation of acetyl-iso-malodinitrile.
CH236715A (en) Process for the production of x-chloro-o-methyl-e-caprolactam.
CH228540A (en) Process for the production of glass parts of discharge tubes.
CH237407A (en) Process for the production of printing forms.
CH236681A (en) Process for the production of perchlorethylene.
CH231178A (en) Process for the production of acrylonitrile.
CH233393A (en) Process for the production of hydrogen cyanide.
CH229408A (en) Process for the manufacture of rigid shoe caps.