NL160697C - Elektromagnetisch groeftasterelement. - Google Patents

Elektromagnetisch groeftasterelement.

Info

Publication number
NL160697C
NL160697C NL7015867.A NL7015867A NL160697C NL 160697 C NL160697 C NL 160697C NL 7015867 A NL7015867 A NL 7015867A NL 160697 C NL160697 C NL 160697C
Authority
NL
Netherlands
Prior art keywords
grade element
electromagnetic groove
groove grade
electromagnetic
groove
Prior art date
Application number
NL7015867.A
Other languages
English (en)
Dutch (nl)
Other versions
NL7015867A (xx
NL160697B (nl
Original Assignee
Grado Joseph
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 Grado Joseph filed Critical Grado Joseph
Publication of NL7015867A publication Critical patent/NL7015867A/xx
Priority to NLAANVRAGE7804499,A priority Critical patent/NL171519C/xx
Publication of NL160697B publication Critical patent/NL160697B/xx
Application granted granted Critical
Publication of NL160697C publication Critical patent/NL160697C/xx

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)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Moving Of Heads (AREA)
  • Electromagnets (AREA)
  • Brushless Motors (AREA)
NL7015867.A 1969-11-03 1970-10-29 Elektromagnetisch groeftasterelement. NL160697C (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7804499,A NL171519C (nl) 1969-11-03 1978-04-26 Elektromagnetisch groeftasterelement.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87336869A 1969-11-03 1969-11-03

Publications (3)

Publication Number Publication Date
NL7015867A NL7015867A (xx) 1971-05-05
NL160697B NL160697B (nl) 1979-06-15
NL160697C true NL160697C (nl) 1979-11-15

Family

ID=25361507

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7015867.A NL160697C (nl) 1969-11-03 1970-10-29 Elektromagnetisch groeftasterelement.

Country Status (9)

Country Link
US (1) US3694586A (xx)
JP (1) JPS514761B1 (xx)
CA (1) CA941312A (xx)
CH (1) CH531819A (xx)
DE (1) DE2053829B2 (xx)
ES (1) ES385092A1 (xx)
FR (1) FR2073322B1 (xx)
GB (1) GB1321688A (xx)
NL (1) NL160697C (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683128A (en) * 1970-06-29 1972-08-08 Joseph F Grado Flux-bridging stereophonic pickup
US3878342A (en) * 1972-08-18 1975-04-15 Fonofilm Ind A S Replaceable stylus for stereophonic phonograph pickup
JPS5123290Y2 (xx) * 1973-07-13 1976-06-15
US3881073A (en) * 1973-11-12 1975-04-29 Joseph F Grado Replaceable stylus-lever generator module for an electromagnetic cartridge
US4174111A (en) * 1973-11-12 1979-11-13 Grado Joseph F Compressive pivot suspension system for an electromagnetic cartridge
US4103116A (en) * 1974-12-05 1978-07-25 Nippon Gakki Seizo Kabushiki Kaisha Pickup cartridge with moving magnet armature
US4031336A (en) * 1975-02-10 1977-06-21 Grado Joseph F Electromagnetic pickup with magnetic gap displacement generator
JPS5448503A (en) * 1977-09-01 1979-04-17 Matsushita Electric Ind Co Ltd Moving coil type pickup cartridge
US4209669A (en) * 1977-12-23 1980-06-24 Nippon Columbia Kabushikikaisha Pick-up cartridge

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA718099A (en) * 1965-09-14 N.V. Philips Gloeilampenfabrieken Converting device for recording or scanning groove-like record tracks
US2829210A (en) * 1951-08-15 1958-04-01 Donald J Baker Magnetic pickup
US2864897A (en) * 1958-02-17 1958-12-16 Hoffman Electronics Corp Universal phonograph pickup head or the like
US3067295A (en) * 1958-08-04 1962-12-04 Pickering & Co Inc Stereophonic phonograph pick-up device
GB930366A (en) * 1958-11-10 1963-07-03 Bang & Olufsen Produktionssels Stereophonic pick-up having a single stylus
US3469040A (en) * 1965-04-15 1969-09-23 Empire Scient Corp Variable reluctance phonograph cartridge
DE1960545A1 (de) * 1968-12-16 1970-06-25 Huber & Co Tonwiedergabekopf mit einem auswechselbaren Nadeltraeger

Also Published As

Publication number Publication date
FR2073322B1 (xx) 1975-10-10
DE2053829C3 (xx) 1974-12-12
NL7015867A (xx) 1971-05-05
JPS514761B1 (xx) 1976-02-14
CH531819A (de) 1972-12-15
NL160697B (nl) 1979-06-15
FR2073322A1 (xx) 1971-10-01
DE2053829A1 (de) 1971-05-19
CA941312A (en) 1974-02-05
GB1321688A (en) 1973-06-27
DE2053829B2 (de) 1974-05-16
US3694586A (en) 1972-09-26
ES385092A1 (es) 1973-03-16

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: GRADO