FR696323A - Aimant permanent pour haut-parleurs électro-dynamiques - Google Patents

Aimant permanent pour haut-parleurs électro-dynamiques

Info

Publication number
FR696323A
FR696323A FR696323DA FR696323A FR 696323 A FR696323 A FR 696323A FR 696323D A FR696323D A FR 696323DA FR 696323 A FR696323 A FR 696323A
Authority
FR
France
Prior art keywords
electro
permanent magnet
dynamic loudspeakers
loudspeakers
dynamic
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)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR696323A publication Critical patent/FR696323A/fr
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
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0289—Transducers, loudspeakers, moving coil arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR696323D 1929-06-22 1930-05-30 Aimant permanent pour haut-parleurs électro-dynamiques Expired FR696323A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL351723X 1929-06-22

Publications (1)

Publication Number Publication Date
FR696323A true FR696323A (fr) 1930-12-29

Family

ID=19785063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR696323D Expired FR696323A (fr) 1929-06-22 1930-05-30 Aimant permanent pour haut-parleurs électro-dynamiques

Country Status (4)

Country Link
BE (1) BE370722A (en, 2012)
FR (1) FR696323A (en, 2012)
GB (1) GB351723A (en, 2012)
NL (1) NL32105C (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547565A (en) * 1946-09-26 1951-04-03 Wright Zimmerman Inc Speaker having a tubular pot

Also Published As

Publication number Publication date
BE370722A (en, 2012)
GB351723A (en) 1931-07-02
NL32105C (en, 2012)

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