FR593515A - Device for amplifying the sounds of a phonograph - Google Patents

Device for amplifying the sounds of a phonograph

Info

Publication number
FR593515A
FR593515A FR593515DA FR593515A FR 593515 A FR593515 A FR 593515A FR 593515D A FR593515D A FR 593515DA FR 593515 A FR593515 A FR 593515A
Authority
FR
France
Prior art keywords
phonograph
sounds
amplifying
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-Marie-Victor Crepelle
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 FR593515A publication Critical patent/FR593515A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
FR593515D 1925-02-18 1925-02-18 Device for amplifying the sounds of a phonograph Expired FR593515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR593515T 1925-02-18

Publications (1)

Publication Number Publication Date
FR593515A true FR593515A (en) 1925-08-25

Family

ID=8965518

Family Applications (1)

Application Number Title Priority Date Filing Date
FR593515D Expired FR593515A (en) 1925-02-18 1925-02-18 Device for amplifying the sounds of a phonograph

Country Status (1)

Country Link
FR (1) FR593515A (en)

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