FR732375A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR732375A
FR732375A FR732375DA FR732375A FR 732375 A FR732375 A FR 732375A FR 732375D A FR732375D A FR 732375DA FR 732375 A FR732375 A FR 732375A
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
electric
discharge
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
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 FR732375A publication Critical patent/FR732375A/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
    • H01J1/22—Heaters
FR732375D 1931-03-24 1932-02-26 Electric discharge tube Expired FR732375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL391938X 1931-03-24

Publications (1)

Publication Number Publication Date
FR732375A true FR732375A (en) 1932-09-19

Family

ID=19785802

Family Applications (1)

Application Number Title Priority Date Filing Date
FR732375D Expired FR732375A (en) 1931-03-24 1932-02-26 Electric discharge tube

Country Status (4)

Country Link
US (1) US2098807A (en)
BE (1) BE386698A (en)
FR (1) FR732375A (en)
GB (1) GB391938A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263114A (en) * 1960-10-26 1966-07-26 Firm Egyesult Izzolampa Es Vil Shock and vibration resistant heater for indirectly heated cathodes of radio receiving tubes

Also Published As

Publication number Publication date
US2098807A (en) 1937-11-09
GB391938A (en) 1933-05-11
BE386698A (en)

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