GB355919A - Improvements in or relating to magnet systems for loud-speakers - Google Patents

Improvements in or relating to magnet systems for loud-speakers

Info

Publication number
GB355919A
GB355919A GB23424/30A GB2342430A GB355919A GB 355919 A GB355919 A GB 355919A GB 23424/30 A GB23424/30 A GB 23424/30A GB 2342430 A GB2342430 A GB 2342430A GB 355919 A GB355919 A GB 355919A
Authority
GB
United Kingdom
Prior art keywords
loud
armature
yoke
poles
speakers
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
GB23424/30A
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 GB355919A publication Critical patent/GB355919A/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB23424/30A 1929-09-27 1930-08-05 Improvements in or relating to magnet systems for loud-speakers Expired GB355919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL355919X 1929-09-27

Publications (1)

Publication Number Publication Date
GB355919A true GB355919A (en) 1931-09-03

Family

ID=19785222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23424/30A Expired GB355919A (en) 1929-09-27 1930-08-05 Improvements in or relating to magnet systems for loud-speakers

Country Status (4)

Country Link
US (1) US1961180A (https=)
BE (1) BE372442A (https=)
FR (1) FR700120A (https=)
GB (1) GB355919A (https=)

Also Published As

Publication number Publication date
US1961180A (en) 1934-06-05
FR700120A (fr) 1931-02-24
BE372442A (https=)

Similar Documents

Publication Publication Date Title
US3686446A (en) Push-pull moving coil loudspeaker having electromagnetic centering means
GB504802A (en) Improvements in or relating to permanent magnet devices for producing axially symmetrical magnetic fields
GB708134A (en) Improvements in or relating to magnetic bodies comprising a highly-permeable part and a thin permanent magnet
GB355919A (en) Improvements in or relating to magnet systems for loud-speakers
US3159713A (en) Artificial reverberation device
GB602114A (en) Improvements in or relating to electrodynamic pickups
US1866361A (en) Driving unit for loud-speakers
US222118A (en) Improvement in magnet-telephones
GB469093A (en) Improvements in or relating to magnetic systems, particularly for electro-acoustic apparatus
US1670193A (en) Telephone receiver
US1606776A (en) Telephone speaker
US2013953A (en) Loud speaker attachment
GB334493A (en) Improvements in and relating to apparatus for producing sound
GB355227A (en) Improvements relating to the mounting of vibrating reeds, more particularly for use in connection with electromagnetic gramophone pick-ups, loud speakers and the like
US1090436A (en) Call-bell.
US1641667A (en) Sound-reproducing-device construction
US1771127A (en) Telephone magnet system
US1718009A (en) Loud-speaker and sound-reproducing unit
GB313406A (en) Method and apparatus for the electromagnetic reproduction of sound
US1658802A (en) Actuating device for loud speakers
US1654203A (en) Pick-up device
GB324608A (en) Improvements relating to loud speakers
DE707707C (de) Lautsprecheranordnung
US1571452A (en) Amplifier for radiophones
US1546470A (en) brown