GB298643A - Sound reproducing and recording device - Google Patents

Sound reproducing and recording device

Info

Publication number
GB298643A
GB298643A GB29442/28A GB2944228A GB298643A GB 298643 A GB298643 A GB 298643A GB 29442/28 A GB29442/28 A GB 29442/28A GB 2944228 A GB2944228 A GB 2944228A GB 298643 A GB298643 A GB 298643A
Authority
GB
United Kingdom
Prior art keywords
conductor
blade
circuit wires
magnet
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
GB29442/28A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB298643A publication Critical patent/GB298643A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—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
    • 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)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
GB29442/28A 1927-02-17 1928-10-12 Sound reproducing and recording device Expired GB298643A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR629363T 1927-02-17
FR34325T 1927-10-14

Publications (1)

Publication Number Publication Date
GB298643A true GB298643A (en) 1929-10-03

Family

ID=26182652

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29442/28A Expired GB298643A (en) 1927-02-17 1928-10-12 Sound reproducing and recording device

Country Status (3)

Country Link
BE (1) BE348253A (enrdf_load_stackoverflow)
FR (1) FR34325E (enrdf_load_stackoverflow)
GB (1) GB298643A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR34325E (fr) 1929-05-04
BE348253A (enrdf_load_stackoverflow)

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