JPS5769998A - Electromagnetic type pickup cartridge - Google Patents

Electromagnetic type pickup cartridge

Info

Publication number
JPS5769998A
JPS5769998A JP14718680A JP14718680A JPS5769998A JP S5769998 A JPS5769998 A JP S5769998A JP 14718680 A JP14718680 A JP 14718680A JP 14718680 A JP14718680 A JP 14718680A JP S5769998 A JPS5769998 A JP S5769998A
Authority
JP
Japan
Prior art keywords
parallel
modulation
independent
operation gap
pole pieces
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.)
Pending
Application number
JP14718680A
Other languages
Japanese (ja)
Inventor
Keizo Kano
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14718680A priority Critical patent/JPS5769998A/en
Publication of JPS5769998A publication Critical patent/JPS5769998A/en
Pending 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
    • 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)

Abstract

PURPOSE:To achieve a pickup cartridge with good signal separation wihtout cross talk, by oscillating a pair of independent armatures corresponding to each speed amplitude of two modulation walls of a record disc in independent magnetic circuits. CONSTITUTION:Operation gap formed with pole pieces 26, 27 and 25, 28 is independent and the shortent length of each operation gap is within a parallel planes P2, P3 for two modulation walls of a record disc. Armatures 23, 23' are respectively magnetized lengthwise in the respective operating gap and fixed to a holder 35 in parallel with a cantilever 22. When one modulation wall oscillates a stylus chip 22 orthogonally according to recording, the armature 23 operates in parallel with the plane P2, and magnetic flux change to the operation gap between pole pieces 26, 27, an electromotive force is produced in a coil 32 and an electric output signal is picked up at a terminal 34. In this case, since the armature 23' moves in parallel with the pole pieces 25, 28, no magnetic flux change is caused in the operation gap.
JP14718680A 1980-10-20 1980-10-20 Electromagnetic type pickup cartridge Pending JPS5769998A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14718680A JPS5769998A (en) 1980-10-20 1980-10-20 Electromagnetic type pickup cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14718680A JPS5769998A (en) 1980-10-20 1980-10-20 Electromagnetic type pickup cartridge

Publications (1)

Publication Number Publication Date
JPS5769998A true JPS5769998A (en) 1982-04-30

Family

ID=15424505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14718680A Pending JPS5769998A (en) 1980-10-20 1980-10-20 Electromagnetic type pickup cartridge

Country Status (1)

Country Link
JP (1) JPS5769998A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008255969A (en) * 2007-04-09 2008-10-23 Kobe Steel Ltd Noise reducing structure of fan device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008255969A (en) * 2007-04-09 2008-10-23 Kobe Steel Ltd Noise reducing structure of fan device

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