FR798600A - Perfectionnements aux cathodes à chauffage indirect pour valves thermoiniques ou analogues - Google Patents

Perfectionnements aux cathodes à chauffage indirect pour valves thermoiniques ou analogues

Info

Publication number
FR798600A
FR798600A FR798600DA FR798600A FR 798600 A FR798600 A FR 798600A FR 798600D A FR798600D A FR 798600DA FR 798600 A FR798600 A FR 798600A
Authority
FR
France
Prior art keywords
indirectly heated
thermal valves
heated cathodes
cathodes
valves
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR798600A publication Critical patent/FR798600A/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22Heaters
FR798600D 1935-03-06 1935-10-31 Perfectionnements aux cathodes à chauffage indirect pour valves thermoiniques ou analogues Expired FR798600A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7041/35A GB453154A (en) 1935-03-06 1935-03-06 Improvements in or relating to indirectly heated cathodes for thermionic valves

Publications (1)

Publication Number Publication Date
FR798600A true FR798600A (fr) 1936-05-20

Family

ID=9825498

Family Applications (1)

Application Number Title Priority Date Filing Date
FR798600D Expired FR798600A (fr) 1935-03-06 1935-10-31 Perfectionnements aux cathodes à chauffage indirect pour valves thermoiniques ou analogues

Country Status (6)

Country Link
US (1) US2164913A (ja)
BE (1) BE411406A (ja)
DE (1) DE755099C (ja)
FR (1) FR798600A (ja)
GB (1) GB453154A (ja)
NL (1) NL42560C (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487695A (en) * 1946-11-29 1949-11-08 North American Geophysical Com Electric heating element
US2742585A (en) * 1952-08-22 1956-04-17 Gen Electric Electrical vapor detector
NL87447C (ja) * 1952-10-11
GB749312A (en) * 1953-05-02 1956-05-23 Emi Ltd Improvements in or relating to indirectly heated cathodes for electron discharge devices
NL84939C (ja) * 1954-01-01
US2899664A (en) * 1956-02-27 1959-08-11 Electric heating units and methods of making the same
US2935709A (en) * 1958-03-18 1960-05-03 Ii William A Paine Apparatus and method for strain rod assembly and filament core
US3265924A (en) * 1962-06-29 1966-08-09 York Res Corp Thermionic tube having novel heater and cathode

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH157162A (de) * 1930-07-03 1932-09-15 Gustav Ganz & Co Indirekt geheizte Glühkathode für Entladungsröhren.
NL36127C (ja) * 1932-02-16
US2158665A (en) * 1932-06-30 1939-05-16 Hygrade Sylvania Corp Electron discharge device

Also Published As

Publication number Publication date
GB453154A (en) 1936-09-07
NL42560C (ja)
DE755099C (de) 1953-10-26
US2164913A (en) 1939-07-04
BE411406A (ja)

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