GB387974A - Improvements in electrical reproducers for disc records - Google Patents

Improvements in electrical reproducers for disc records

Info

Publication number
GB387974A
GB387974A GB29159/32A GB2915932A GB387974A GB 387974 A GB387974 A GB 387974A GB 29159/32 A GB29159/32 A GB 29159/32A GB 2915932 A GB2915932 A GB 2915932A GB 387974 A GB387974 A GB 387974A
Authority
GB
United Kingdom
Prior art keywords
knife
edges
armature
rubber
reproducers
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
GB29159/32A
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.)
CARL LINDSTROEM AG
Original Assignee
CARL LINDSTROEM AG
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 CARL LINDSTROEM AG filed Critical CARL LINDSTROEM AG
Publication of GB387974A publication Critical patent/GB387974A/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
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Vibration Prevention Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)
GB29159/32A 1931-11-23 1932-10-18 Improvements in electrical reproducers for disc records Expired GB387974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE387974X 1931-11-23

Publications (1)

Publication Number Publication Date
GB387974A true GB387974A (en) 1933-02-16

Family

ID=6371215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29159/32A Expired GB387974A (en) 1931-11-23 1932-10-18 Improvements in electrical reproducers for disc records

Country Status (3)

Country Link
US (1) US1980137A (enrdf_load_stackoverflow)
FR (1) FR744199A (enrdf_load_stackoverflow)
GB (1) GB387974A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496484A (en) * 1946-04-17 1950-02-07 Massa Frank Magnetostrictive phonograph pickup
US2585040A (en) * 1949-03-23 1952-02-12 Frederick Hart & Co Inc Electromagnetic recording head
US2769038A (en) * 1952-11-29 1956-10-30 Orton Melvern Phonograph pickup and the like

Also Published As

Publication number Publication date
US1980137A (en) 1934-11-06
FR744199A (enrdf_load_stackoverflow) 1933-04-13

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