GB494793A - Improvements in or relating to sound recorders - Google Patents

Improvements in or relating to sound recorders

Info

Publication number
GB494793A
GB494793A GB28644/37A GB2864437A GB494793A GB 494793 A GB494793 A GB 494793A GB 28644/37 A GB28644/37 A GB 28644/37A GB 2864437 A GB2864437 A GB 2864437A GB 494793 A GB494793 A GB 494793A
Authority
GB
United Kingdom
Prior art keywords
parts
shaped
armature
oscillating part
stylus
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
GB28644/37A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB494793A publication Critical patent/GB494793A/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)
  • Recording Or Reproducing By Magnetic Means (AREA)
GB28644/37A 1936-11-02 1937-10-20 Improvements in or relating to sound recorders Expired GB494793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE494793X 1936-11-02

Publications (1)

Publication Number Publication Date
GB494793A true GB494793A (en) 1938-11-01

Family

ID=6544772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28644/37A Expired GB494793A (en) 1936-11-02 1937-10-20 Improvements in or relating to sound recorders

Country Status (3)

Country Link
US (1) US2154300A (en:Method)
GB (1) GB494793A (en:Method)
NL (1) NL52236C (en:Method)

Also Published As

Publication number Publication date
NL52236C (en:Method)
US2154300A (en) 1939-04-11

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