FR682098A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR682098A
FR682098A FR682098DA FR682098A FR 682098 A FR682098 A FR 682098A FR 682098D A FR682098D A FR 682098DA FR 682098 A FR682098 A FR 682098A
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 FR682098A publication Critical patent/FR682098A/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
    • H01J1/24—Insulating layer or body located between heater and emissive material
FR682098D 1928-09-25 1929-09-20 Electric discharge tube Expired FR682098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL319652X 1928-09-25

Publications (1)

Publication Number Publication Date
FR682098A true FR682098A (en) 1930-05-22

Family

ID=19783934

Family Applications (1)

Application Number Title Priority Date Filing Date
FR682098D Expired FR682098A (en) 1928-09-25 1929-09-20 Electric discharge tube

Country Status (3)

Country Link
BE (1) BE363575A (en)
FR (1) FR682098A (en)
GB (1) GB319652A (en)

Also Published As

Publication number Publication date
BE363575A (en)
GB319652A (en) 1930-04-03

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