DE2304771C3 - Elektrische Entladungsröhre mit einer direkt heizbaren Kathode - Google Patents

Elektrische Entladungsröhre mit einer direkt heizbaren Kathode

Info

Publication number
DE2304771C3
DE2304771C3 DE2304771A DE2304771A DE2304771C3 DE 2304771 C3 DE2304771 C3 DE 2304771C3 DE 2304771 A DE2304771 A DE 2304771A DE 2304771 A DE2304771 A DE 2304771A DE 2304771 C3 DE2304771 C3 DE 2304771C3
Authority
DE
Germany
Prior art keywords
cathode
cylinder
strips
discharge tube
diameter
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
DE2304771A
Other languages
German (de)
English (en)
Other versions
DE2304771A1 (de
DE2304771B2 (de
Inventor
Johannes Cornelis Van Eindhoven Warmerdam
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
Publication of DE2304771A1 publication Critical patent/DE2304771A1/de
Publication of DE2304771B2 publication Critical patent/DE2304771B2/de
Application granted granted Critical
Publication of DE2304771C3 publication Critical patent/DE2304771C3/de
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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Electron Sources, Ion Sources (AREA)
DE2304771A 1972-02-17 1973-02-01 Elektrische Entladungsröhre mit einer direkt heizbaren Kathode Expired DE2304771C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7202069A NL7202069A (US20110105765A1-20110505-C00013.png) 1972-02-17 1972-02-17

Publications (3)

Publication Number Publication Date
DE2304771A1 DE2304771A1 (de) 1973-08-23
DE2304771B2 DE2304771B2 (de) 1977-09-15
DE2304771C3 true DE2304771C3 (de) 1982-03-04

Family

ID=19815386

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2304771A Expired DE2304771C3 (de) 1972-02-17 1973-02-01 Elektrische Entladungsröhre mit einer direkt heizbaren Kathode

Country Status (8)

Country Link
US (1) US3806753A (US20110105765A1-20110505-C00013.png)
JP (1) JPS557655B2 (US20110105765A1-20110505-C00013.png)
CA (1) CA990778A (US20110105765A1-20110505-C00013.png)
CH (1) CH552281A (US20110105765A1-20110505-C00013.png)
DE (1) DE2304771C3 (US20110105765A1-20110505-C00013.png)
FR (1) FR2172354B1 (US20110105765A1-20110505-C00013.png)
GB (1) GB1414392A (US20110105765A1-20110505-C00013.png)
NL (1) NL7202069A (US20110105765A1-20110505-C00013.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1042105A1 (ru) * 1980-02-05 1983-09-15 Организация П/Я Х-5263 Решетчатый катод пр мого накала дл электронных ламп и способ его изготовлени
FR2532468A1 (fr) * 1982-08-31 1984-03-02 Thomson Csf Perfectionnement aux cathodes a chauffage direct
JPS6224307U (US20110105765A1-20110505-C00013.png) * 1985-07-29 1987-02-14
JPH0446165Y2 (US20110105765A1-20110505-C00013.png) * 1985-08-23 1992-10-29
JPS6239958U (US20110105765A1-20110505-C00013.png) * 1985-08-23 1987-03-10
FR2708379B1 (fr) * 1993-07-27 1995-09-01 Thomson Tubes Electroniques Cathode à enclenchement et coupure rapides du chauffage et tube électronique à grille comportant une telle cathode.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928978A (en) * 1956-08-03 1960-03-15 Int Standard Electric Corp Mounting of thermionic cathodes
GB830352A (en) * 1956-08-03 1960-03-16 Standard Telephones Cables Ltd Improvements in or relating to the mounting of thermionic cathodes
GB987461A (en) * 1962-05-31 1965-03-31 Standard Telephones Cables Ltd Thermionic valves
US3560791A (en) * 1967-09-08 1971-02-02 Siemens Ag Mesh cathode for electron tubes

Also Published As

Publication number Publication date
US3806753A (en) 1974-04-23
DE2304771A1 (de) 1973-08-23
JPS557655B2 (US20110105765A1-20110505-C00013.png) 1980-02-27
GB1414392A (en) 1975-11-19
CA990778A (en) 1976-06-08
JPS4890669A (US20110105765A1-20110505-C00013.png) 1973-11-26
CH552281A (de) 1974-07-31
FR2172354B1 (US20110105765A1-20110505-C00013.png) 1977-12-30
DE2304771B2 (de) 1977-09-15
FR2172354A1 (US20110105765A1-20110505-C00013.png) 1973-09-28
NL7202069A (US20110105765A1-20110505-C00013.png) 1973-08-21

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee