NL142273B - DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD. - Google Patents

DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD.

Info

Publication number
NL142273B
NL142273B NL63298210A NL298210A NL142273B NL 142273 B NL142273 B NL 142273B NL 63298210 A NL63298210 A NL 63298210A NL 298210 A NL298210 A NL 298210A NL 142273 B NL142273 B NL 142273B
Authority
NL
Netherlands
Prior art keywords
discharge tube
cathod
directly heated
heated cathode
electric discharge
Prior art date
Application number
NL63298210A
Other languages
Dutch (nl)
Inventor
Wilhelmus Albert Jurgens
Original Assignee
Philips 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
Priority to NL298210D priority Critical patent/NL298210A/xx
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL63298210A priority patent/NL142273B/en
Priority to DEN25521A priority patent/DE1234857B/en
Priority to US396882A priority patent/US3327157A/en
Priority to AT800764A priority patent/AT250517B/en
Priority to GB38008/64A priority patent/GB1025168A/en
Priority to CH1208264A priority patent/CH425000A/en
Priority to BE653296A priority patent/BE653296A/xx
Priority to ES0304155A priority patent/ES304155A1/en
Priority to FR988500A priority patent/FR1408087A/en
Publication of NL142273B publication Critical patent/NL142273B/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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
NL63298210A 1963-09-20 1963-09-20 DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD. NL142273B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL298210D NL298210A (en) 1963-09-20
NL63298210A NL142273B (en) 1963-09-20 1963-09-20 DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD.
DEN25521A DE1234857B (en) 1963-09-20 1964-09-16 Cathode unit for electrical discharge tubes
US396882A US3327157A (en) 1963-09-20 1964-09-16 Cathode unit for electric discharge tubes
AT800764A AT250517B (en) 1963-09-20 1964-09-17 Cathode unit for an electrical discharge tube, which consists of a plurality of parallel thin wires, which is made by winding a wire over two hollow holders
GB38008/64A GB1025168A (en) 1963-09-20 1964-09-17 Improvements relating to cathode assemblies for electric discharge tubes
CH1208264A CH425000A (en) 1963-09-20 1964-09-17 Cathode unit for an electric discharge tube
BE653296A BE653296A (en) 1963-09-20 1964-09-18
ES0304155A ES304155A1 (en) 1963-09-20 1964-09-18 Improvements introduced in the manufacture of cathodic units for electric discharge pipes. (Machine-translation by Google Translate, not legally binding)
FR988500A FR1408087A (en) 1963-09-20 1964-09-18 cathode elements for electric discharge tubes and discharge tubes provided with at least one such element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL63298210A NL142273B (en) 1963-09-20 1963-09-20 DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD.

Publications (1)

Publication Number Publication Date
NL142273B true NL142273B (en) 1974-05-15

Family

ID=19755072

Family Applications (2)

Application Number Title Priority Date Filing Date
NL298210D NL298210A (en) 1963-09-20
NL63298210A NL142273B (en) 1963-09-20 1963-09-20 DIRECTLY HEATED CATHODE FOR AN ELECTRICAL DISCHARGE TUBE, AND ELECTRIC DISCHARGE TUBE FITTED WITH AT LEAST SUCH A CATHOD.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL298210D NL298210A (en) 1963-09-20

Country Status (8)

Country Link
US (1) US3327157A (en)
AT (1) AT250517B (en)
BE (1) BE653296A (en)
CH (1) CH425000A (en)
DE (1) DE1234857B (en)
ES (1) ES304155A1 (en)
GB (1) GB1025168A (en)
NL (2) NL142273B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922578A (en) * 1974-05-01 1975-11-25 Gte Sylvania Inc Large area cathode
US4487673A (en) * 1982-04-21 1984-12-11 Rca Corporation Method of making a line cathode having localized emissive coating

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1720442A (en) * 1923-06-19 1929-07-09 Ass Elect Ind Vacuum electric-tube apparatus
DE519082C (en) * 1926-04-21 1931-02-23 Radiotechnique Soc Process for the production of electron tubes
US1980937A (en) * 1933-09-07 1934-11-13 Rca Corp Electron discharge device
US2656477A (en) * 1951-05-25 1953-10-20 Lafayette M Hughes Photoelectric cell having a light sensitive electron emissive cathode
AT230502B (en) * 1960-10-14 1963-12-10 Philips Nv Directly heated cathode for an electrical discharge tube, forming a rigid, handleable unit

Also Published As

Publication number Publication date
NL298210A (en)
CH425000A (en) 1966-11-30
BE653296A (en) 1965-03-18
ES304155A1 (en) 1965-03-16
DE1234857B (en) 1967-02-23
GB1025168A (en) 1966-04-06
US3327157A (en) 1967-06-20
AT250517B (en) 1966-11-10

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