DE1009313B - Direkt geheizte kaefigfoermige Kathode fuer elektrische Entladungsroehren fuer hohe Frequenzen - Google Patents

Direkt geheizte kaefigfoermige Kathode fuer elektrische Entladungsroehren fuer hohe Frequenzen

Info

Publication number
DE1009313B
DE1009313B DEN12038A DEN0012038A DE1009313B DE 1009313 B DE1009313 B DE 1009313B DE N12038 A DEN12038 A DE N12038A DE N0012038 A DEN0012038 A DE N0012038A DE 1009313 B DE1009313 B DE 1009313B
Authority
DE
Germany
Prior art keywords
wires
high frequencies
electrical discharge
cathode
directly heated
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.)
Pending
Application number
DEN12038A
Other languages
German (de)
English (en)
Inventor
Eduard Gerardus Dorgelo
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 DE1009313B publication Critical patent/DE1009313B/de
Pending 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

  • Discharge Lamp (AREA)
  • Solid Thermionic Cathode (AREA)
DEN12038A 1955-04-02 1956-03-29 Direkt geheizte kaefigfoermige Kathode fuer elektrische Entladungsroehren fuer hohe Frequenzen Pending DE1009313B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL340280X 1955-04-02

Publications (1)

Publication Number Publication Date
DE1009313B true DE1009313B (de) 1957-05-29

Family

ID=19784673

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN12038A Pending DE1009313B (de) 1955-04-02 1956-03-29 Direkt geheizte kaefigfoermige Kathode fuer elektrische Entladungsroehren fuer hohe Frequenzen

Country Status (6)

Country Link
US (1) US2882436A (enrdf_load_stackoverflow)
CH (1) CH340280A (enrdf_load_stackoverflow)
DE (1) DE1009313B (enrdf_load_stackoverflow)
FR (1) FR1144978A (enrdf_load_stackoverflow)
GB (1) GB797964A (enrdf_load_stackoverflow)
NL (1) NL88786C (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152276A (en) * 1960-09-08 1964-10-06 Philips Corp Electron tube having coaxial terminals for an interiorly emissive cathode
DE1146985B (de) * 1960-11-04 1963-04-11 Siemens Ag Halbindirekt geheizte Kathode fuer Elektronenroehren
FR1312580A (fr) * 1961-11-09 1962-12-21 Csf Perfectionnements aux cathodes de dimensions millimétriques pour tubes électroniques
US3299317A (en) * 1963-06-12 1967-01-17 Varian Associates Electron tube having a quick heating cathode with means to apply a variable voltage to the quick heating cathode
FR1455956A (fr) * 1965-07-20 1966-05-20 Thomson Houston Comp Francaise Perfectionnements aux cathodes à chauffage direct
US3482300A (en) * 1966-10-31 1969-12-09 Screen Printing Systems Inc Printing screen and method of making same
US3465400A (en) * 1967-02-01 1969-09-09 Varian Associates Method of making cylindrical mesh electrode for electron tubes
NL7201534A (enrdf_load_stackoverflow) * 1972-02-05 1973-08-07
US3976909A (en) * 1975-07-11 1976-08-24 Rca Corporation Wire mesh cathode
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
US4781640A (en) * 1985-01-24 1988-11-01 Varian Associates, Inc. Basket electrode shaping

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE851832C (de) * 1950-05-17 1952-10-09 Siemens Ag Kathode fuer Elektronenroehren
DE899081C (de) * 1950-05-17 1953-12-07 Siemens Ag Kathode fuer Elektronenroehren

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1596672A (en) * 1924-02-05 1926-08-17 Luckash Andrew Audion tube
US1874355A (en) * 1924-03-10 1932-08-30 Rca Corp Thermionic valve
US2210761A (en) * 1936-10-07 1940-08-06 Gen Electric Cathode
US2363028A (en) * 1941-12-16 1944-11-21 Carl J Warnke Cathode filament
US2724069A (en) * 1950-03-30 1955-11-15 English Electric Valve Co Ltd Thermionic valves

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE851832C (de) * 1950-05-17 1952-10-09 Siemens Ag Kathode fuer Elektronenroehren
DE899081C (de) * 1950-05-17 1953-12-07 Siemens Ag Kathode fuer Elektronenroehren

Also Published As

Publication number Publication date
CH340280A (de) 1959-08-15
US2882436A (en) 1959-04-14
GB797964A (en) 1958-07-09
NL88786C (enrdf_load_stackoverflow)
FR1144978A (fr) 1957-10-21

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