FR904940A - Oscillating coil for mechanical-acoustic transformers - Google Patents

Oscillating coil for mechanical-acoustic transformers

Info

Publication number
FR904940A
FR904940A FR904940DA FR904940A FR 904940 A FR904940 A FR 904940A FR 904940D A FR904940D A FR 904940DA FR 904940 A FR904940 A FR 904940A
Authority
FR
France
Prior art keywords
mechanical
oscillating coil
acoustic transformers
transformers
acoustic
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)
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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 Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH filed Critical Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Application granted granted Critical
Publication of FR904940A publication Critical patent/FR904940A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR904940D 1943-03-26 1944-06-09 Oscillating coil for mechanical-acoustic transformers Expired FR904940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE904940X 1943-03-26

Publications (1)

Publication Number Publication Date
FR904940A true FR904940A (en) 1945-11-20

Family

ID=6862056

Family Applications (1)

Application Number Title Priority Date Filing Date
FR904940D Expired FR904940A (en) 1943-03-26 1944-06-09 Oscillating coil for mechanical-acoustic transformers

Country Status (1)

Country Link
FR (1) FR904940A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2364588A1 (en) * 1976-03-22 1978-04-07 Babbco Ltd LOW MASS COIL LOUDSPEAKER AND ITS MANUFACTURING PROCESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2364588A1 (en) * 1976-03-22 1978-04-07 Babbco Ltd LOW MASS COIL LOUDSPEAKER AND ITS MANUFACTURING PROCESS

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