GB399779A - Improvements in or relating to magnets, particularly for electrodynamic loudspeakers, microphones, electric pick-ups or the like - Google Patents

Improvements in or relating to magnets, particularly for electrodynamic loudspeakers, microphones, electric pick-ups or the like

Info

Publication number
GB399779A
GB399779A GB440/32A GB44032A GB399779A GB 399779 A GB399779 A GB 399779A GB 440/32 A GB440/32 A GB 440/32A GB 44032 A GB44032 A GB 44032A GB 399779 A GB399779 A GB 399779A
Authority
GB
United Kingdom
Prior art keywords
stud
air gap
gap
microphones
magnets
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
GB440/32A
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
Priority to BE385205D priority Critical patent/BE385205A/xx
Priority to FR728897D priority patent/FR728897A/fr
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to GB440/32A priority patent/GB399779A/en
Publication of GB399779A publication Critical patent/GB399779A/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)
GB440/32A 1931-01-24 1932-01-06 Improvements in or relating to magnets, particularly for electrodynamic loudspeakers, microphones, electric pick-ups or the like Expired GB399779A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE385205D BE385205A (enrdf_load_stackoverflow) 1931-01-24 1931-12-24
FR728897D FR728897A (fr) 1931-01-24 1931-12-28 Aimant de dispositifs électrodynamiques, tels que haut-parleurs, microphones, lecteurs phonographiques, etc.
GB440/32A GB399779A (en) 1931-01-24 1932-01-06 Improvements in or relating to magnets, particularly for electrodynamic loudspeakers, microphones, electric pick-ups or the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE385205X 1931-01-24
GB440/32A GB399779A (en) 1931-01-24 1932-01-06 Improvements in or relating to magnets, particularly for electrodynamic loudspeakers, microphones, electric pick-ups or the like

Publications (1)

Publication Number Publication Date
GB399779A true GB399779A (en) 1933-10-12

Family

ID=9704368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB440/32A Expired GB399779A (en) 1931-01-24 1932-01-06 Improvements in or relating to magnets, particularly for electrodynamic loudspeakers, microphones, electric pick-ups or the like

Country Status (3)

Country Link
BE (1) BE385205A (enrdf_load_stackoverflow)
FR (1) FR728897A (enrdf_load_stackoverflow)
GB (1) GB399779A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR728897A (fr) 1932-07-12
BE385205A (enrdf_load_stackoverflow) 1932-01-30

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