FR1457177A - Indirectly heated cathode for discharge tube - Google Patents

Indirectly heated cathode for discharge tube

Info

Publication number
FR1457177A
FR1457177A FR41491A FR41491A FR1457177A FR 1457177 A FR1457177 A FR 1457177A FR 41491 A FR41491 A FR 41491A FR 41491 A FR41491 A FR 41491A FR 1457177 A FR1457177 A FR 1457177A
Authority
FR
France
Prior art keywords
discharge tube
indirectly heated
heated cathode
cathode
indirectly
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
FR41491A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1457177A publication Critical patent/FR1457177A/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
FR41491A 1964-12-10 1965-12-09 Indirectly heated cathode for discharge tube Expired FR1457177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL646414340A NL141698B (en) 1964-12-10 1964-12-10 INDIRECTLY HEATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE.

Publications (1)

Publication Number Publication Date
FR1457177A true FR1457177A (en) 1966-10-28

Family

ID=19791604

Family Applications (1)

Application Number Title Priority Date Filing Date
FR41491A Expired FR1457177A (en) 1964-12-10 1965-12-09 Indirectly heated cathode for discharge tube

Country Status (11)

Country Link
US (1) US3366827A (en)
AT (1) AT258426B (en)
BE (1) BE673477A (en)
CH (1) CH438499A (en)
DE (1) DE1236663B (en)
ES (1) ES320448A1 (en)
FR (1) FR1457177A (en)
GB (1) GB1100195A (en)
NL (1) NL141698B (en)
NO (1) NO116432B (en)
SE (1) SE312381B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29703990U1 (en) * 1997-03-05 1997-04-17 Thielen Marcus Dipl Phys Cold electrode for gas discharges

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2143915A (en) * 1935-11-07 1939-01-17 Telefunken Gmbh Indirectly heated cathode
US2155237A (en) * 1937-11-18 1939-04-18 Gen Electric Electric discharge device
US2201731A (en) * 1938-11-30 1940-05-21 Gen Electric Discharge tube electrode assembly

Also Published As

Publication number Publication date
US3366827A (en) 1968-01-30
SE312381B (en) 1969-07-14
DE1236663B (en) 1967-03-16
ES320448A1 (en) 1966-07-01
NO116432B (en) 1969-03-24
BE673477A (en) 1966-06-08
CH438499A (en) 1967-06-30
GB1100195A (en) 1968-01-24
NL141698B (en) 1974-03-15
NL6414340A (en) 1966-06-13
AT258426B (en) 1967-11-27

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