NL6800278A - - Google Patents

Info

Publication number
NL6800278A
NL6800278A NL6800278A NL6800278A NL6800278A NL 6800278 A NL6800278 A NL 6800278A NL 6800278 A NL6800278 A NL 6800278A NL 6800278 A NL6800278 A NL 6800278A NL 6800278 A NL6800278 A NL 6800278A
Authority
NL
Netherlands
Application number
NL6800278A
Other versions
NL154047B (nl
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 filed Critical
Priority to NL686800278A priority Critical patent/NL154047B/xx
Priority to DE19681639344 priority patent/DE1639344C3/de
Priority to CH166068A priority patent/CH477756A/de
Priority to GB565168A priority patent/GB1164413A/en
Priority to AT106868A priority patent/AT287128B/de
Priority to FR1555031D priority patent/FR1555031A/fr
Priority to US732985A priority patent/US3497757A/en
Publication of NL6800278A publication Critical patent/NL6800278A/xx
Publication of NL154047B publication Critical patent/NL154047B/xx

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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • 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
    • H01J1/14—Solid thermionic cathodes characterised by the material
NL686800278A 1967-02-08 1968-01-09 Elektrische ontladingsbuis met een kathode die in het inwendige activeringsmateriaal bevat, en kathode bestemd voor een dergelijke ontladingsbuis. NL154047B (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL686800278A NL154047B (nl) 1968-01-09 1968-01-09 Elektrische ontladingsbuis met een kathode die in het inwendige activeringsmateriaal bevat, en kathode bestemd voor een dergelijke ontladingsbuis.
DE19681639344 DE1639344C3 (de) 1967-02-08 1968-01-20 Kathode für eine elektrische Entladungsröhre
CH166068A CH477756A (de) 1967-02-08 1968-02-05 Elektrische Entladungsröhre mit einer Kathode, deren Inneres ein Aktivierungsmaterial enthält
GB565168A GB1164413A (en) 1967-02-08 1968-02-05 Cathode Assembly
AT106868A AT287128B (de) 1968-01-09 1968-02-05 Kathode für eine elektrische Entladungsröhre
FR1555031D FR1555031A (OSRAM) 1967-02-08 1968-02-07
US732985A US3497757A (en) 1968-01-09 1968-05-29 Tungsten dispenser cathode having emission enhancing coating of osmium-iridium or osmium-ruthenium alloy for use in electron tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL686800278A NL154047B (nl) 1968-01-09 1968-01-09 Elektrische ontladingsbuis met een kathode die in het inwendige activeringsmateriaal bevat, en kathode bestemd voor een dergelijke ontladingsbuis.

Publications (2)

Publication Number Publication Date
NL6800278A true NL6800278A (OSRAM) 1969-07-11
NL154047B NL154047B (nl) 1977-07-15

Family

ID=19802451

Family Applications (1)

Application Number Title Priority Date Filing Date
NL686800278A NL154047B (nl) 1967-02-08 1968-01-09 Elektrische ontladingsbuis met een kathode die in het inwendige activeringsmateriaal bevat, en kathode bestemd voor een dergelijke ontladingsbuis.

Country Status (3)

Country Link
US (1) US3497757A (OSRAM)
AT (1) AT287128B (OSRAM)
NL (1) NL154047B (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004424A1 (en) * 1978-03-23 1979-10-03 Thorn Emi-Varian Limited Thermionic cathode
EP0028954A1 (fr) * 1979-11-09 1981-05-20 Thomson-Csf Cathode thermo-ionique, son procédé de fabrication et tube électronique incorporant une telle cathode

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842309A (en) * 1970-11-12 1974-10-15 Philips Corp Method of manufacturing a storage cathode and cathode manufactured by said method
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
NL165880C (nl) * 1975-02-21 1981-05-15 Philips Nv Naleveringskathode.
US4165473A (en) * 1976-06-21 1979-08-21 Varian Associates, Inc. Electron tube with dispenser cathode
CH629033A5 (de) * 1978-05-05 1982-03-31 Bbc Brown Boveri & Cie Gluehkathode.
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode
FR2496290A1 (fr) * 1980-12-12 1982-06-18 Efcis Circuit d'asservissement numerique en fonction de la frequence
JPS58100329A (ja) * 1981-12-11 1983-06-15 Toshiba Corp 電子管用陰極構体

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155864A (en) * 1960-03-21 1964-11-03 Gen Electric Dispenser cathode
US3243637A (en) * 1962-10-31 1966-03-29 Gen Electric Dispenser cathode
US3373307A (en) * 1963-11-21 1968-03-12 Philips Corp Dispenser cathode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004424A1 (en) * 1978-03-23 1979-10-03 Thorn Emi-Varian Limited Thermionic cathode
EP0028954A1 (fr) * 1979-11-09 1981-05-20 Thomson-Csf Cathode thermo-ionique, son procédé de fabrication et tube électronique incorporant une telle cathode

Also Published As

Publication number Publication date
NL154047B (nl) 1977-07-15
AT287128B (de) 1971-01-11
US3497757A (en) 1970-02-24

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: PHILIPS