CH541269A - Stereophonischer Tonabnehmer - Google Patents

Stereophonischer Tonabnehmer

Info

Publication number
CH541269A
CH541269A CH936471A CH936471A CH541269A CH 541269 A CH541269 A CH 541269A CH 936471 A CH936471 A CH 936471A CH 936471 A CH936471 A CH 936471A CH 541269 A CH541269 A CH 541269A
Authority
CH
Switzerland
Prior art keywords
stereophonic pickup
stereophonic
pickup
Prior art date
Application number
CH936471A
Other languages
German (de)
English (en)
Inventor
Grado Joseph
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 CH541269A publication Critical patent/CH541269A/de

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)
  • Electromagnets (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Moving Of Heads (AREA)
CH936471A 1970-06-29 1971-06-25 Stereophonischer Tonabnehmer CH541269A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5062470A 1970-06-29 1970-06-29

Publications (1)

Publication Number Publication Date
CH541269A true CH541269A (de) 1973-08-31

Family

ID=21966368

Family Applications (1)

Application Number Title Priority Date Filing Date
CH936471A CH541269A (de) 1970-06-29 1971-06-25 Stereophonischer Tonabnehmer

Country Status (9)

Country Link
US (1) US3683128A (https=)
JP (1) JPS5021241B1 (https=)
CA (1) CA930674A (https=)
CH (1) CH541269A (https=)
DE (1) DE2132127C3 (https=)
ES (1) ES392652A1 (https=)
FR (1) FR2096572B1 (https=)
GB (1) GB1318665A (https=)
NL (1) NL161647C (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174111A (en) * 1973-11-12 1979-11-13 Grado Joseph F Compressive pivot suspension system for an electromagnetic cartridge
US3881073A (en) * 1973-11-12 1975-04-29 Joseph F Grado Replaceable stylus-lever generator module for an electromagnetic cartridge
US4031336A (en) * 1975-02-10 1977-06-21 Grado Joseph F Electromagnetic pickup with magnetic gap displacement generator
AT341240B (de) * 1975-07-29 1978-01-25 Akg Akustische Kino Geraete Tonabnehmer
US4367544A (en) 1979-05-14 1983-01-04 Akg Akustische U Kino-Gerate Gesellschaft Mbh Electromagnetic transducers for converting mechanically acoustic events into alternating voltages

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2114471A (en) * 1936-06-20 1938-04-19 Bell Telephone Labor Inc Sound recording and reproducing system
US2456338A (en) * 1945-03-26 1948-12-14 Pure Oil Co Catalytic polymerization of olefinic hydrocarbons
US2444336A (en) * 1946-01-30 1948-06-29 Lionel B Cornwell Electrical sound translating device
US3469040A (en) * 1965-04-15 1969-09-23 Empire Scient Corp Variable reluctance phonograph cartridge
FR1541427A (fr) * 1966-10-20 1968-10-04 Matsushita Electric Industrial Co Ltd Pick-up magnétique de phonographe stéréophonique
DK124049B (da) * 1969-03-25 1972-09-04 Fonofilm Ind As Magnetisk pick-up.
US3694586A (en) * 1969-11-03 1972-09-26 Joseph F Grado Toroidal armature stereophonic pickup

Also Published As

Publication number Publication date
FR2096572A1 (https=) 1972-02-18
ES392652A1 (es) 1973-08-01
CA930674A (en) 1973-07-24
DE2132127B2 (https=) 1974-05-16
NL161647C (nl) 1980-02-15
NL7108816A (https=) 1971-12-31
FR2096572B1 (https=) 1977-01-21
US3683128A (en) 1972-08-08
JPS5021241B1 (https=) 1975-07-22
GB1318665A (en) 1973-05-31
NL161647B (nl) 1979-09-17
DE2132127A1 (de) 1972-01-05
DE2132127C3 (de) 1974-12-12

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Legal Events

Date Code Title Description
PL Patent ceased