BE338052A - - Google Patents

Info

Publication number
BE338052A
BE338052A BE338052DA BE338052A BE 338052 A BE338052 A BE 338052A BE 338052D A BE338052D A BE 338052DA BE 338052 A BE338052 A BE 338052A
Authority
BE
Belgium
Prior art keywords
frame
stylet
desc
page number
clms page
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 BE338052A publication Critical patent/BE338052A/fr
Priority claimed from US65472A external-priority patent/US1599418A/en
Priority claimed from US72541A external-priority patent/US1783044A/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
    • 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
    • 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
    • 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)
  • Ignition Installations For Internal Combustion Engines (AREA)
BE338052D 1925-10-28 BE338052A (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
US72541A US1783044A (en) 1925-12-01 1925-12-01 Reproducer

Publications (1)

Publication Number Publication Date
BE338052A true BE338052A (enrdf_load_stackoverflow)

Family

ID=26745637

Family Applications (1)

Application Number Title Priority Date Filing Date
BE338052D BE338052A (enrdf_load_stackoverflow) 1925-10-28

Country Status (1)

Country Link
BE (1) BE338052A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US3538266A (en) Magnetic pickup with inducing magnet axially aligned with the armature
BE338052A (enrdf_load_stackoverflow)
US2703343A (en) Phonograph pickup
US2441651A (en) Phonograph recording head
US1728278A (en) Electromagnetic translating device
US2290057A (en) Sound recording and reproducing mechanism
US2213936A (en) Electrodynamic pickup
US3486047A (en) Transducer
US2583289A (en) Phonograph stylus
US2238863A (en) Translation device for phonographs
US1817021A (en) Electric pick-up
US1944258A (en) Sound reproducing instrument
US1733013A (en) Sound-reproducing device
US2652260A (en) Improved phonograph pickup apparatus
US2222342A (en) Electromagnetic sound recorder
US1663884A (en) Device for the transmission of vibratory energy
US2560358A (en) Magnetic phonograph pickup
US1783265A (en) Electrical pick-up
US1812619A (en) Sound reproduction
US1777036A (en) Magnetic pick-up for phonographs
US1759967A (en) Electric sound transmitter
US1914191A (en) Electric sound reproducing apparatus
US6185179B1 (en) Apparatus and method for recording and playing back sound
USRE17796E (en) Phonograph reproducer
US2553715A (en) Segmented magnetic armature for phonograph pickups