FR2445574A1 - Tete electrodynamique de lecture - Google Patents

Tete electrodynamique de lecture

Info

Publication number
FR2445574A1
FR2445574A1 FR7931612A FR7931612A FR2445574A1 FR 2445574 A1 FR2445574 A1 FR 2445574A1 FR 7931612 A FR7931612 A FR 7931612A FR 7931612 A FR7931612 A FR 7931612A FR 2445574 A1 FR2445574 A1 FR 2445574A1
Authority
FR
France
Prior art keywords
electrodynamic
magnet
reading head
read head
coil
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.)
Granted
Application number
FR7931612A
Other languages
English (en)
Other versions
FR2445574B1 (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.)
BURUNDUKOV VALENTIN
Original Assignee
BURUNDUKOV VALENTIN
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 BURUNDUKOV VALENTIN filed Critical BURUNDUKOV VALENTIN
Publication of FR2445574A1 publication Critical patent/FR2445574A1/fr
Application granted granted Critical
Publication of FR2445574B1 publication Critical patent/FR2445574B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Moving Of Heads (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Direct Current Motors (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

L'invention concerne les moyens d'enregistrement et de reproduction phonographiques. La tête électrodynamique de lecture conforme à l'invention est caractérisée en ce que la bobine cylindrique 3, 4 de chaque canal de reproduction 1, 2 est une bobine à une seule section et est disposée, par rapport à son aimant 5, 6, de façon qu'elle couvre les deux pales N, S de l'aimant et que son axe longitudinal soit perpendiculaire à l'axe de cet aimant suivant la ligne N-S. La tête de lecture en question peut être utilisée notamment dans les électrophones de première classe et de haute fidélité.
FR7931612A 1978-12-26 1979-12-24 Tete electrodynamique de lecture Granted FR2445574A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782701590A SU957259A2 (ru) 1978-12-26 1978-12-26 Головка электродинамического звукоснимател

Publications (2)

Publication Number Publication Date
FR2445574A1 true FR2445574A1 (fr) 1980-07-25
FR2445574B1 FR2445574B1 (fr) 1982-11-12

Family

ID=20800581

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931612A Granted FR2445574A1 (fr) 1978-12-26 1979-12-24 Tete electrodynamique de lecture

Country Status (9)

Country Link
US (1) US4397012A (fr)
JP (1) JPS57500223A (fr)
CH (1) CH652849A5 (fr)
DE (1) DE2953456C2 (fr)
DK (1) DK150839B (fr)
FR (1) FR2445574A1 (fr)
NL (1) NL7920181A (fr)
SU (1) SU957259A2 (fr)
WO (1) WO1980001428A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB663236A (en) * 1949-03-21 1951-12-19 Standard Telephones Cables Ltd Improvements in or relating to electro-acoustic reproducers
FR1238024A (fr) * 1958-10-09 1960-11-28 Decca Record Co Ltd Perfectionnements aux têtes de lecture des électrophones
FR2384411A1 (fr) * 1977-03-14 1978-10-13 Burundukov Valentin Convertisseur electrodyn

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE367125A (fr) * 1929-01-22
US3014993A (en) * 1959-05-14 1961-12-26 Fairchild Recording Equipment Phonograph pickup cartridge
DE2603092B2 (de) * 1976-01-28 1979-04-19 Electroacustic Gmbh, 2300 Kiel Elektromagnetischer Tonabnehmer
US4209669A (en) * 1977-12-23 1980-06-24 Nippon Columbia Kabushikikaisha Pick-up cartridge
JPS5534554A (en) * 1978-08-31 1980-03-11 Matsushita Electric Ind Co Ltd Electromagnetic pickup cartridge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB663236A (en) * 1949-03-21 1951-12-19 Standard Telephones Cables Ltd Improvements in or relating to electro-acoustic reproducers
FR1238024A (fr) * 1958-10-09 1960-11-28 Decca Record Co Ltd Perfectionnements aux têtes de lecture des électrophones
FR2384411A1 (fr) * 1977-03-14 1978-10-13 Burundukov Valentin Convertisseur electrodyn

Also Published As

Publication number Publication date
DK150839B (da) 1987-06-29
DK359780A (da) 1980-08-21
US4397012A (en) 1983-08-02
SU957259A2 (ru) 1982-09-07
DE2953456A1 (en) 1980-12-18
DE2953456C2 (de) 1985-07-18
CH652849A5 (de) 1985-11-29
FR2445574B1 (fr) 1982-11-12
JPS57500223A (fr) 1982-02-04
WO1980001428A1 (fr) 1980-07-10
NL7920181A (nl) 1980-10-31

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Legal Events

Date Code Title Description
ST Notification of lapse