BE340865A - - Google Patents

Info

Publication number
BE340865A
BE340865A BE340865DA BE340865A BE 340865 A BE340865 A BE 340865A BE 340865D A BE340865D A BE 340865DA BE 340865 A BE340865 A BE 340865A
Authority
BE
Belgium
Prior art keywords
armature
pole pieces
sound
coil
parts
Prior art date
Application number
Other languages
English (en)
French (fr)
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.)
Publication of BE340865A publication Critical patent/BE340865A/fr
Priority claimed from US65472A external-priority patent/US1599418A/en
Priority claimed from US99166A external-priority patent/US1774975A/en

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
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H04R3/08—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electromagnetic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Electromagnets (AREA)
BE340865D 1925-10-28 BE340865A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65472A US1599418A (en) 1925-10-28 1925-10-28 Sound-reproducing apparatus
US99166A US1774975A (en) 1926-04-01 1926-04-01 Electromagnetic pick-up device

Publications (1)

Publication Number Publication Date
BE340865A true BE340865A (enrdf_load_stackoverflow)

Family

ID=26745638

Family Applications (1)

Application Number Title Priority Date Filing Date
BE340865D BE340865A (enrdf_load_stackoverflow) 1925-10-28

Country Status (1)

Country Link
BE (1) BE340865A (enrdf_load_stackoverflow)

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