AT250517B - 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 - Google Patents

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

Info

Publication number
AT250517B
AT250517B AT800764A AT800764A AT250517B AT 250517 B AT250517 B AT 250517B AT 800764 A AT800764 A AT 800764A AT 800764 A AT800764 A AT 800764A AT 250517 B AT250517 B AT 250517B
Authority
AT
Austria
Prior art keywords
winding
discharge tube
electrical discharge
thin wires
cathode unit
Prior art date
Application number
AT800764A
Other languages
German (de)
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
Application filed by Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT250517B publication Critical patent/AT250517B/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
AT800764A 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 AT250517B (en)

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
AT250517B true AT250517B (en) 1966-11-10

Family

ID=19755072

Family Applications (1)

Application Number Title Priority Date Filing Date
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

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
GB1025168A (en) 1966-04-06
US3327157A (en) 1967-06-20
CH425000A (en) 1966-11-30
DE1234857B (en) 1967-02-23
NL298210A (en)
ES304155A1 (en) 1965-03-16
NL142273B (en) 1974-05-15
BE653296A (en) 1965-03-18

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