FR621664A - Perfectionnement aux amplifieurs de sons - Google Patents

Perfectionnement aux amplifieurs de sons

Info

Publication number
FR621664A
FR621664A FR621664DA FR621664A FR 621664 A FR621664 A FR 621664A FR 621664D A FR621664D A FR 621664DA FR 621664 A FR621664 A FR 621664A
Authority
FR
France
Prior art keywords
improvement
sound amplifiers
amplifiers
sound
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)
Inventor
Reuben Henry Alexander Englund
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 FR621664A publication Critical patent/FR621664A/fr
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)
FR621664D 1926-09-18 1926-09-18 Perfectionnement aux amplifieurs de sons Expired FR621664A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR621664T 1926-09-18

Publications (1)

Publication Number Publication Date
FR621664A true FR621664A (fr) 1927-05-16

Family

ID=8985256

Family Applications (1)

Application Number Title Priority Date Filing Date
FR621664D Expired FR621664A (fr) 1926-09-18 1926-09-18 Perfectionnement aux amplifieurs de sons

Country Status (1)

Country Link
FR (1) FR621664A (fr)

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