GB683832A - An improved driving and centering system for moving coil loudspeakers, microphones and relays of thermo-plastic material - Google Patents

An improved driving and centering system for moving coil loudspeakers, microphones and relays of thermo-plastic material

Info

Publication number
GB683832A
GB683832A GB11142/50A GB1114250A GB683832A GB 683832 A GB683832 A GB 683832A GB 11142/50 A GB11142/50 A GB 11142/50A GB 1114250 A GB1114250 A GB 1114250A GB 683832 A GB683832 A GB 683832A
Authority
GB
United Kingdom
Prior art keywords
thermo
microphones
relays
plastic material
moving coil
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
GB11142/50A
Other languages
English (en)
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.)
GRUNDIG RADIO WERKE GmbH
Original Assignee
GRUNDIG RADIO WERKE 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 GRUNDIG RADIO WERKE GmbH filed Critical GRUNDIG RADIO WERKE GmbH
Publication of GB683832A publication Critical patent/GB683832A/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
    • H04R9/041—Centering
    • 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
    • H04R9/022—Cooling arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB11142/50A 1950-02-22 1950-05-05 An improved driving and centering system for moving coil loudspeakers, microphones and relays of thermo-plastic material Expired GB683832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE286905X 1950-02-22

Publications (1)

Publication Number Publication Date
GB683832A true GB683832A (en) 1952-12-03

Family

ID=6059162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11142/50A Expired GB683832A (en) 1950-02-22 1950-05-05 An improved driving and centering system for moving coil loudspeakers, microphones and relays of thermo-plastic material

Country Status (4)

Country Link
BE (1) BE495623A (enrdf_load_stackoverflow)
CH (1) CH286905A (enrdf_load_stackoverflow)
FR (1) FR1017147A (enrdf_load_stackoverflow)
GB (1) GB683832A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991286A (en) * 1975-06-02 1976-11-09 Altec Corporation Heat dissipating device for loudspeaker voice coil
CN109246562A (zh) * 2018-09-21 2019-01-18 歌尔股份有限公司 微型发声装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991286A (en) * 1975-06-02 1976-11-09 Altec Corporation Heat dissipating device for loudspeaker voice coil
CN109246562A (zh) * 2018-09-21 2019-01-18 歌尔股份有限公司 微型发声装置

Also Published As

Publication number Publication date
BE495623A (enrdf_load_stackoverflow)
CH286905A (de) 1952-11-15
FR1017147A (fr) 1952-12-02

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