FR575217A - Perfectionnements aux lampes thermoioniques - Google Patents

Perfectionnements aux lampes thermoioniques

Info

Publication number
FR575217A
FR575217A FR575217DA FR575217A FR 575217 A FR575217 A FR 575217A FR 575217D A FR575217D A FR 575217DA FR 575217 A FR575217 A FR 575217A
Authority
FR
France
Prior art keywords
thermionic
lamps
thermionic lamps
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
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR575217A publication Critical patent/FR575217A/fr
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
    • H01J1/135—Circuit arrangements therefor, e.g. for temperature control
FR575217D 1923-01-05 1924-01-03 Perfectionnements aux lampes thermoioniques Expired FR575217A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB575217X 1923-01-05

Publications (1)

Publication Number Publication Date
FR575217A true FR575217A (fr) 1924-07-25

Family

ID=10479391

Family Applications (1)

Application Number Title Priority Date Filing Date
FR575217D Expired FR575217A (fr) 1923-01-05 1924-01-03 Perfectionnements aux lampes thermoioniques

Country Status (1)

Country Link
FR (1) FR575217A (fr)

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