FR983147A - Tube à décharge comportant une cathode à chauffage indirect - Google Patents

Tube à décharge comportant une cathode à chauffage indirect

Info

Publication number
FR983147A
FR983147A FR983147DA FR983147A FR 983147 A FR983147 A FR 983147A FR 983147D A FR983147D A FR 983147DA FR 983147 A FR983147 A FR 983147A
Authority
FR
France
Prior art keywords
discharge tube
indirectly heated
heated cathode
cathode
indirectly
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
Other languages
English (en)
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR983147A publication Critical patent/FR983147A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters
FR983147D 1948-03-15 1949-03-14 Tube à décharge comportant une cathode à chauffage indirect Expired FR983147A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR983147A true FR983147A (fr) 1951-06-19

Family

ID=19781927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR983147D Expired FR983147A (fr) 1948-03-15 1949-03-14 Tube à décharge comportant une cathode à chauffage indirect

Country Status (7)

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

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 (nl) * 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
US2403444A (en) * 1941-05-31 1946-07-09 Bell Telephone Labor Inc Electron discharge device
US2403445A (en) * 1941-05-31 1946-07-09 Bell Telephone Labor Inc Electron discharge device

Also Published As

Publication number Publication date
CH270976A (de) 1950-09-30
NL68498C (nl)
GB676009A (en) 1952-07-23
US2593856A (en) 1952-04-22
DE809324C (de) 1951-07-26
BE487889A (nl)

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