GB387309A - Improved electrodynamic device for translating electric oscillations into acoustic vibrations and conversely - Google Patents

Improved electrodynamic device for translating electric oscillations into acoustic vibrations and conversely

Info

Publication number
GB387309A
GB387309A GB12421/31A GB1242131A GB387309A GB 387309 A GB387309 A GB 387309A GB 12421/31 A GB12421/31 A GB 12421/31A GB 1242131 A GB1242131 A GB 1242131A GB 387309 A GB387309 A GB 387309A
Authority
GB
United Kingdom
Prior art keywords
conversely
former
acoustic vibrations
electric oscillations
electrodynamic device
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
GB12421/31A
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.)
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
Publication of GB387309A publication Critical patent/GB387309A/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; ELECTRIC HEARING AIDS; 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB12421/31A 1930-05-10 1931-04-27 Improved electrodynamic device for translating electric oscillations into acoustic vibrations and conversely Expired GB387309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL387309X 1930-05-10

Publications (1)

Publication Number Publication Date
GB387309A true GB387309A (en) 1933-02-02

Family

ID=19785725

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12421/31A Expired GB387309A (en) 1930-05-10 1931-04-27 Improved electrodynamic device for translating electric oscillations into acoustic vibrations and conversely

Country Status (3)

Country Link
BE (1) BE379048A (https=)
FR (1) FR715482A (https=)
GB (1) GB387309A (https=)

Also Published As

Publication number Publication date
BE379048A (https=)
FR715482A (fr) 1931-12-03

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