GB922440A - Cathode heater for electron discharge devices - Google Patents

Cathode heater for electron discharge devices

Info

Publication number
GB922440A
GB922440A GB26618/61A GB2661861A GB922440A GB 922440 A GB922440 A GB 922440A GB 26618/61 A GB26618/61 A GB 26618/61A GB 2661861 A GB2661861 A GB 2661861A GB 922440 A GB922440 A GB 922440A
Authority
GB
United Kingdom
Prior art keywords
coating
aluminium oxide
mixture
tungsten
insulating coating
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
GB26618/61A
Other languages
English (en)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB922440A publication Critical patent/GB922440A/en
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

Landscapes

  • Solid Thermionic Cathode (AREA)
GB26618/61A 1960-08-19 1961-07-21 Cathode heater for electron discharge devices Expired GB922440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50706A US3195004A (en) 1960-08-19 1960-08-19 Cathode heater for electron discharge devices

Publications (1)

Publication Number Publication Date
GB922440A true GB922440A (en) 1963-04-03

Family

ID=21966900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26618/61A Expired GB922440A (en) 1960-08-19 1961-07-21 Cathode heater for electron discharge devices

Country Status (5)

Country Link
US (1) US3195004A (enrdf_load_stackoverflow)
DE (1) DE1141388B (enrdf_load_stackoverflow)
ES (1) ES269986A1 (enrdf_load_stackoverflow)
GB (1) GB922440A (enrdf_load_stackoverflow)
NL (1) NL268393A (enrdf_load_stackoverflow)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL269971A (enrdf_load_stackoverflow) 1960-10-18
NL113095C (enrdf_load_stackoverflow) 1961-12-22
DE1281038B (de) * 1962-08-01 1968-10-24 Telefunken Patent Verfahren zur Herstellung einer mittelbar geheizten Kathode fuer eine elektrische Entladungsroehre
US3246197A (en) * 1962-10-02 1966-04-12 Westinghouse Electric Corp Cathode heater having an aluminum oxide and tungesten coating
FR1355710A (fr) * 1963-02-06 1964-03-20 Radiotechnique Perfectionnement aux filaments de chauffage de cathodes pour tubes électroniques
DE1281039B (de) * 1963-09-25 1968-10-24 Telefunken Patent Verfahren zur Herstellung einer indirekt geheizten Kathode fuer Elektronenroehren
FR1398135A (fr) * 1964-03-27 1965-05-07 Commissariat Energie Atomique Procédé de stabilisation de sources thermoioniques et source thermoionique conforme à celles obtenues par application dudit procédé ou d'un procédé analogue
US3328201A (en) * 1964-04-27 1967-06-27 Rca Corp Heater for electron tubes
US3450565A (en) * 1964-12-18 1969-06-17 Sylvania Electric Prod Method of coating heater coils
US3737714A (en) * 1964-12-18 1973-06-05 Sylvania Electric Prod Dark coated heater for vacuum tube cathode
GB1129615A (en) * 1965-03-11 1968-10-09 English Electric Valve Co Ltd Improvements in or relating to electron discharge device cathodes
US3401297A (en) * 1965-08-23 1968-09-10 Varian Associates Thermionic cathodes for electron discharge devices with improved refractory metal heater wires
NL6512348A (enrdf_load_stackoverflow) * 1965-09-23 1967-03-28
US3494779A (en) * 1965-09-29 1970-02-10 Ncr Co Oxygen-dominated phosphor films
DE1639016B1 (de) * 1967-03-07 1972-05-31 Varian Associates Verfahren zum herstellen von kathoden-heizern
US3500454A (en) * 1967-11-16 1970-03-10 Sylvania Electric Prod Insulator heater coating for heater-cathode assembly
DE2317446C3 (de) * 1973-04-06 1983-11-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Verfahren zum Herstellen eines Heizelementes für eine indirekt geheizte Kathode
DE2317445C3 (de) * 1973-04-06 1982-09-09 Standard Elektrik Lorenz Ag, 7000 Stuttgart Verfahren zum Herstellen eines Heizkörpers für eine indirekt geheizte Kathode
US4126489A (en) * 1973-07-17 1978-11-21 Varian Associates, Inc. Method of making cathode heaters
JPS5165861A (en) * 1974-12-05 1976-06-07 Sony Corp Toranjisutano baiasukairo
AU529792B2 (en) 1980-07-09 1983-06-23 Matsushita Electric Industrial Co., Ltd. Infrared radiative body
US10741351B1 (en) * 2019-08-01 2020-08-11 Lockheed Martin Corporation Multi-apertured conduction heater

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL38569C (enrdf_load_stackoverflow) * 1933-06-24
US2724788A (en) * 1952-02-12 1955-11-22 Electrons Inc Indirectly heated cathode for gas tubes
US3029360A (en) * 1958-04-29 1962-04-10 Rca Corp Heater wire coating process
DE1090774B (de) 1959-03-20 1960-10-13 Siemens Ag Heizelement fuer mittelbar geheizte Kathoden und Verfahren zur Herstellung eines Isolierueberzuges
US3005926A (en) * 1959-05-22 1961-10-24 Westinghouse Electric Corp Cathode for electron discharge device
NL250741A (enrdf_load_stackoverflow) * 1959-07-16

Also Published As

Publication number Publication date
DE1141388B (de) 1962-12-20
ES269986A1 (es) 1961-11-16
NL268393A (enrdf_load_stackoverflow)
US3195004A (en) 1965-07-13

Similar Documents

Publication Publication Date Title
GB922440A (en) Cathode heater for electron discharge devices
GB734311A (en) Improvements in or relating to cathodes for use in electric discharge tubes, tubes comprising such cathodes and methods of manufacturing such cathodes
GB1198600A (en) Improvements in or relating to Getters.
GB767899A (en) Improvements in and relating to electric heating elements and processes
GB1262420A (en) Improvements in or relating to voltage overload protectors
GB666053A (en) Improvements in or relating to thermionic cathodes
GB1192710A (en) Improvements in or relating to Fuel Cells
GB1002789A (en) Electrode structure
US2218381A (en) Thermionic cathode
US3662211A (en) Cathode construction
GB1463125A (en) Glass body with transparent semiconductor metal oxide film
GB1282023A (en) Electrical resistor material
GB1017004A (en) Electron discharge devices
Takher High-strength steatite ceramics with broad sintered state range
GB1418196A (en) Fabrication of dark heaters
GB975023A (en) Cathode grid assembly for electron gun
GB1216702A (en) Ceramic glazes
GB587039A (en) Improvements in and relating to the electrophoretic coating of metal articles
GB1333933A (en) Vitreous enamel resistance composition
GB1218667A (en) Electron discharge device heater
US2527513A (en) Nonemissive electrode for use in electron discharge devices
GB1020284A (en) A heater for an indirectly heated thermionic cathode
SU391631A1 (ru) Термоэлектронный катод
JPS6150890B2 (enrdf_load_stackoverflow)
GB1004776A (en) Improvements in cathode construction