FR693435A - Electromagnetic vibrating device intended in particular for acoustic recording and reproduction - Google Patents

Electromagnetic vibrating device intended in particular for acoustic recording and reproduction

Info

Publication number
FR693435A
FR693435A FR693435DA FR693435A FR 693435 A FR693435 A FR 693435A FR 693435D A FR693435D A FR 693435DA FR 693435 A FR693435 A FR 693435A
Authority
FR
France
Prior art keywords
reproduction
vibrating device
device intended
electromagnetic vibrating
acoustic recording
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
Other languages
French (fr)
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.)
Parlophone Records Ltd
Original Assignee
Gramophone Co Ltd
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 Gramophone Co Ltd filed Critical Gramophone Co Ltd
Application granted granted Critical
Publication of FR693435A publication Critical patent/FR693435A/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
    • 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)
FR693435D 1929-05-19 1930-04-05 Electromagnetic vibrating device intended in particular for acoustic recording and reproduction Expired FR693435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB693435X 1929-05-19

Publications (1)

Publication Number Publication Date
FR693435A true FR693435A (en) 1930-11-20

Family

ID=10493274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR693435D Expired FR693435A (en) 1929-05-19 1930-04-05 Electromagnetic vibrating device intended in particular for acoustic recording and reproduction

Country Status (2)

Country Link
FR (1) FR693435A (en)
NL (1) NL28789C (en)

Also Published As

Publication number Publication date
NL28789C (en)

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