FR623776A - Acoustic amplifier device for loudspeakers, phonographs, and similar apparatus - Google Patents

Acoustic amplifier device for loudspeakers, phonographs, and similar apparatus

Info

Publication number
FR623776A
FR623776A FR623776DA FR623776A FR 623776 A FR623776 A FR 623776A FR 623776D A FR623776D A FR 623776DA FR 623776 A FR623776 A FR 623776A
Authority
FR
France
Prior art keywords
phonographs
loudspeakers
amplifier device
similar apparatus
acoustic amplifier
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
Andre-Gilbert Couzinet
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 FR623776A publication Critical patent/FR623776A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR623776D 1926-10-28 1926-10-28 Acoustic amplifier device for loudspeakers, phonographs, and similar apparatus Expired FR623776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR623776T 1926-10-28

Publications (1)

Publication Number Publication Date
FR623776A true FR623776A (en) 1927-06-30

Family

ID=8986655

Family Applications (1)

Application Number Title Priority Date Filing Date
FR623776D Expired FR623776A (en) 1926-10-28 1926-10-28 Acoustic amplifier device for loudspeakers, phonographs, and similar apparatus

Country Status (1)

Country Link
FR (1) FR623776A (en)

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