FR872842A - Improvements made to electric discharge tubes - Google Patents

Improvements made to electric discharge tubes

Info

Publication number
FR872842A
FR872842A FR872842DA FR872842A FR 872842 A FR872842 A FR 872842A FR 872842D A FR872842D A FR 872842DA FR 872842 A FR872842 A FR 872842A
Authority
FR
France
Prior art keywords
electric discharge
improvements made
discharge tubes
tubes
electric
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 FR872842A publication Critical patent/FR872842A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/065—Devices for short wave tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/82—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
FR872842D 1939-09-14 1941-06-04 Improvements made to electric discharge tubes Expired FR872842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL218219X 1939-09-14

Publications (1)

Publication Number Publication Date
FR872842A true FR872842A (en) 1942-06-19

Family

ID=19779187

Family Applications (1)

Application Number Title Priority Date Filing Date
FR872842D Expired FR872842A (en) 1939-09-14 1941-06-04 Improvements made to electric discharge tubes

Country Status (2)

Country Link
CH (1) CH218219A (en)
FR (1) FR872842A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034778B (en) * 1954-02-18 1958-07-24 Siemens Ag Electron tubes for high frequencies with electrode leads of low inductance and low thermal conductivity

Also Published As

Publication number Publication date
CH218219A (en) 1941-11-30

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