FR825219A - Magnetic speaker system - Google Patents

Magnetic speaker system

Info

Publication number
FR825219A
FR825219A FR825219DA FR825219A FR 825219 A FR825219 A FR 825219A FR 825219D A FR825219D A FR 825219DA FR 825219 A FR825219 A FR 825219A
Authority
FR
France
Prior art keywords
speaker system
magnetic speaker
magnetic
speaker
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.)
Robert Bosch AG
Robert Bosch GmbH
Original Assignee
Robert Bosch AG
Robert Bosch GmbH
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 Robert Bosch AG, Robert Bosch GmbH filed Critical Robert Bosch AG
Application granted granted Critical
Publication of FR825219A publication Critical patent/FR825219A/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
    • H04R9/025—Magnetic circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR825219D 1936-08-06 1937-08-05 Magnetic speaker system Expired FR825219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE499830X 1936-08-06

Publications (1)

Publication Number Publication Date
FR825219A true FR825219A (en) 1938-02-25

Family

ID=6545527

Family Applications (1)

Application Number Title Priority Date Filing Date
FR825219D Expired FR825219A (en) 1936-08-06 1937-08-05 Magnetic speaker system

Country Status (2)

Country Link
FR (1) FR825219A (en)
GB (1) GB499830A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234069A1 (en) * 1992-10-09 1994-04-14 Nokia Deutschland Gmbh Cone speaker in lightweight design

Also Published As

Publication number Publication date
GB499830A (en) 1939-01-30

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