GB260286A - Improvements in electro-magnetic units for operating the diaphragm of sound reproducing devices - Google Patents

Improvements in electro-magnetic units for operating the diaphragm of sound reproducing devices

Info

Publication number
GB260286A
GB260286A GB26347/26A GB2634726A GB260286A GB 260286 A GB260286 A GB 260286A GB 26347/26 A GB26347/26 A GB 26347/26A GB 2634726 A GB2634726 A GB 2634726A GB 260286 A GB260286 A GB 260286A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
reproducing devices
armature
electro
operating
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
GB26347/26A
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.)
LEE DE FOREST Ltd
Original Assignee
LEE DE FOREST Ltd
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 LEE DE FOREST Ltd filed Critical LEE DE FOREST Ltd
Publication of GB260286A publication Critical patent/GB260286A/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
    • 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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB26347/26A 1925-10-24 1926-10-21 Improvements in electro-magnetic units for operating the diaphragm of sound reproducing devices Expired GB260286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64596A US1718337A (en) 1925-10-24 1925-10-24 Loud-speaker motor

Publications (1)

Publication Number Publication Date
GB260286A true GB260286A (en) 1927-06-23

Family

ID=22057011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26347/26A Expired GB260286A (en) 1925-10-24 1926-10-21 Improvements in electro-magnetic units for operating the diaphragm of sound reproducing devices

Country Status (3)

Country Link
US (1) US1718337A (OSRAM)
FR (1) FR623585A (OSRAM)
GB (1) GB260286A (OSRAM)

Also Published As

Publication number Publication date
US1718337A (en) 1929-06-25
FR623585A (OSRAM) 1927-06-27

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