FR2708379B1 - Cathode à enclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode. - Google Patents

Cathode à enclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode.

Info

Publication number
FR2708379B1
FR2708379B1 FR9309230A FR9309230A FR2708379B1 FR 2708379 B1 FR2708379 B1 FR 2708379B1 FR 9309230 A FR9309230 A FR 9309230A FR 9309230 A FR9309230 A FR 9309230A FR 2708379 B1 FR2708379 B1 FR 2708379B1
Authority
FR
France
Prior art keywords
cathode
heating
rapid switching
grid tube
electronic grid
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 - Fee Related
Application number
FR9309230A
Other languages
English (en)
Other versions
FR2708379A1 (fr
Inventor
Langlois Michel
Frossard Robert
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 Electron Devices SA
Original Assignee
Thomson Tubes Electroniques
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 Thomson Tubes Electroniques filed Critical Thomson Tubes Electroniques
Priority to FR9309230A priority Critical patent/FR2708379B1/fr
Priority to EP94401695A priority patent/EP0637047B1/fr
Priority to DE69402271T priority patent/DE69402271T2/de
Publication of FR2708379A1 publication Critical patent/FR2708379A1/fr
Application granted granted Critical
Publication of FR2708379B1 publication Critical patent/FR2708379B1/fr
Priority to US08/663,592 priority patent/US5666018A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/04—Tubes having one or more resonators, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly density modulation, e.g. Heaff tube
    • 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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
FR9309230A 1993-07-27 1993-07-27 Cathode à enclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode. Expired - Fee Related FR2708379B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9309230A FR2708379B1 (fr) 1993-07-27 1993-07-27 Cathode à enclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode.
EP94401695A EP0637047B1 (fr) 1993-07-27 1994-07-22 Cathode à déclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode
DE69402271T DE69402271T2 (de) 1993-07-27 1994-07-22 Kathode mit schnell schaltendem Heizelement und Gitter-Elektronenröhre ausgerüstet mit einer solchen Kathode
US08/663,592 US5666018A (en) 1993-07-27 1996-06-14 Cathode with fast heat switch-on and switch-off mechanism and grid-type electron tube including such a cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9309230A FR2708379B1 (fr) 1993-07-27 1993-07-27 Cathode à enclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode.

Publications (2)

Publication Number Publication Date
FR2708379A1 FR2708379A1 (fr) 1995-02-03
FR2708379B1 true FR2708379B1 (fr) 1995-09-01

Family

ID=9449675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9309230A Expired - Fee Related FR2708379B1 (fr) 1993-07-27 1993-07-27 Cathode à enclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode.

Country Status (4)

Country Link
US (1) US5666018A (fr)
EP (1) EP0637047B1 (fr)
DE (1) DE69402271T2 (fr)
FR (1) FR2708379B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828007B1 (fr) * 2001-07-27 2004-02-13 Thales Sa Dispositif d'amplification d'un signal haute frequence

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608667A (en) * 1950-12-16 1952-08-26 Westinghouse Electric Corp Lead-in filament support assembly
US2683237A (en) * 1951-12-29 1954-07-06 Westinghouse Electric Corp Radio frequency tube with low internal impedance
US3218502A (en) * 1961-03-16 1965-11-16 Westinghouse Electric Corp High power electron discharge device
FR1455956A (fr) * 1965-07-20 1966-05-20 Thomson Houston Comp Francaise Perfectionnements aux cathodes à chauffage direct
US3419743A (en) * 1965-12-15 1968-12-31 Rca Corp Electron tube having a tensioned cathode
US3407328A (en) * 1966-03-10 1968-10-22 Varian Associates Directly heated cathode supporting structure
GB1197200A (en) * 1966-12-29 1970-07-01 Nippon Electric Co Cage Filament for Electron Discharge Device
US3551724A (en) * 1967-06-16 1970-12-29 Machlett Lab Inc Cathode structure having thermal expansion compensating means
US3522467A (en) * 1967-10-26 1970-08-04 Varian Associates Electron tube filament support structure employing deformable loop portions of the filaments
NL7202069A (fr) * 1972-02-17 1973-08-21
FR2532468A1 (fr) * 1982-08-31 1984-03-02 Thomson Csf Perfectionnement aux cathodes a chauffage direct

Also Published As

Publication number Publication date
DE69402271D1 (de) 1997-04-30
FR2708379A1 (fr) 1995-02-03
EP0637047B1 (fr) 1997-03-26
US5666018A (en) 1997-09-09
DE69402271T2 (de) 1997-07-10
EP0637047A1 (fr) 1995-02-01

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Legal Events

Date Code Title Description
ST Notification of lapse