FR598297A - Improvement in the use of vacuum tubes - Google Patents

Improvement in the use of vacuum tubes

Info

Publication number
FR598297A
FR598297A FR598297DA FR598297A FR 598297 A FR598297 A FR 598297A FR 598297D A FR598297D A FR 598297DA FR 598297 A FR598297 A FR 598297A
Authority
FR
France
Prior art keywords
improvement
vacuum tubes
tubes
vacuum
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)
Inventor
Jean-Baptiste-Joseph Abadie
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 filed Critical
Application granted granted Critical
Publication of FR598297A publication Critical patent/FR598297A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
FR598297D 1924-09-02 1924-09-02 Improvement in the use of vacuum tubes Expired FR598297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR598297T 1924-09-02

Publications (1)

Publication Number Publication Date
FR598297A true FR598297A (en) 1925-12-12

Family

ID=8968805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR598297D Expired FR598297A (en) 1924-09-02 1924-09-02 Improvement in the use of vacuum tubes

Country Status (1)

Country Link
FR (1) FR598297A (en)

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