NL6702376A - - Google Patents

Info

Publication number
NL6702376A
NL6702376A NL6702376A NL6702376A NL6702376A NL 6702376 A NL6702376 A NL 6702376A NL 6702376 A NL6702376 A NL 6702376A NL 6702376 A NL6702376 A NL 6702376A NL 6702376 A NL6702376 A NL 6702376A
Authority
NL
Netherlands
Application number
NL6702376A
Other versions
NL153018B (en
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 NL676702376A priority Critical patent/NL153018B/en
Priority to DE19681639341 priority patent/DE1639341C3/en
Priority to US701204*A priority patent/US3553521A/en
Priority to FR1553520D priority patent/FR1553520A/fr
Priority to GB7263/68A priority patent/GB1150409A/en
Priority to AT138568A priority patent/AT276576B/en
Priority to CH216568A priority patent/CH468713A/en
Priority to ES350511A priority patent/ES350511A1/en
Priority to BE710828D priority patent/BE710828A/xx
Publication of NL6702376A publication Critical patent/NL6702376A/xx
Publication of NL153018B publication Critical patent/NL153018B/en

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
    • H01J1/24—Insulating layer or body located between heater and emissive material
    • 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
    • H01J1/26—Supports for the emissive material
NL676702376A 1967-02-17 1967-02-17 INDIRECTLY HEATED CATHODE. NL153018B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL676702376A NL153018B (en) 1967-02-17 1967-02-17 INDIRECTLY HEATED CATHODE.
DE19681639341 DE1639341C3 (en) 1967-02-17 1968-01-13 Indirectly heatable cathode
US701204*A US3553521A (en) 1967-02-17 1968-01-29 Indirectly heated cathode for an electron discharge tube with an insulated heating element
FR1553520D FR1553520A (en) 1967-02-17 1968-02-13
GB7263/68A GB1150409A (en) 1967-02-17 1968-02-14 Indirectly Heated Cathode
AT138568A AT276576B (en) 1967-02-17 1968-02-14 Indirectly heatable cathode
CH216568A CH468713A (en) 1967-02-17 1968-02-14 Indirectly heatable cathode
ES350511A ES350511A1 (en) 1967-02-17 1968-02-15 Indirectly heated cathode for an electron discharge tube with an insulated heating element
BE710828D BE710828A (en) 1967-02-17 1968-02-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL676702376A NL153018B (en) 1967-02-17 1967-02-17 INDIRECTLY HEATED CATHODE.

Publications (2)

Publication Number Publication Date
NL6702376A true NL6702376A (en) 1968-08-19
NL153018B NL153018B (en) 1977-04-15

Family

ID=19799315

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676702376A NL153018B (en) 1967-02-17 1967-02-17 INDIRECTLY HEATED CATHODE.

Country Status (8)

Country Link
US (1) US3553521A (en)
AT (1) AT276576B (en)
BE (1) BE710828A (en)
CH (1) CH468713A (en)
ES (1) ES350511A1 (en)
FR (1) FR1553520A (en)
GB (1) GB1150409A (en)
NL (1) NL153018B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883767A (en) * 1974-02-08 1975-05-13 Gte Sylvania Inc Heater for fast warmup cathode
US3881126A (en) * 1974-03-06 1975-04-29 Gte Sylvania Inc Fast warm-up cathode assembly
JPS6023454B2 (en) * 1978-11-29 1985-06-07 株式会社日立製作所 electron tube cathode
DE3029853C2 (en) * 1980-08-07 1982-08-26 Standard Elektrik Lorenz Ag, 7000 Stuttgart Wehnelt cathode indirectly heated by electron impact
NL8304401A (en) * 1983-12-22 1985-07-16 Philips Nv OXYD CATHODE.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733378A (en) * 1956-01-31 Thermionic cathodes for electronic discharge devices
US1719988A (en) * 1923-01-26 1929-07-09 Westinghouse Lamp Co Electron device and the like adapted for alternating current
US2878410A (en) * 1954-11-09 1959-03-17 Gen Electric Electronic tube structure
GB937391A (en) * 1962-02-14 1963-09-18 Mullard Ltd Cold-cathode glow-discharge tubes
US3268305A (en) * 1964-08-17 1966-08-23 Sylvania Electric Prod Composite wire
US3401297A (en) * 1965-08-23 1968-09-10 Varian Associates Thermionic cathodes for electron discharge devices with improved refractory metal heater wires

Also Published As

Publication number Publication date
DE1639341B2 (en) 1976-02-12
BE710828A (en) 1968-08-16
AT276576B (en) 1969-11-25
US3553521A (en) 1971-01-05
ES350511A1 (en) 1969-05-16
DE1639341A1 (en) 1971-04-08
GB1150409A (en) 1969-04-30
CH468713A (en) 1969-02-15
FR1553520A (en) 1969-01-10
NL153018B (en) 1977-04-15

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: PHILIPS