CH323037A - Schallplatten-Rillenabtaster mit wenigstens zwei Abtastnadeln, deren Halter äusserlich gedämpft sind - Google Patents

Schallplatten-Rillenabtaster mit wenigstens zwei Abtastnadeln, deren Halter äusserlich gedämpft sind

Info

Publication number
CH323037A
CH323037A CH323037DA CH323037A CH 323037 A CH323037 A CH 323037A CH 323037D A CH323037D A CH 323037DA CH 323037 A CH323037 A CH 323037A
Authority
CH
Switzerland
Prior art keywords
holders
record groove
scanning needles
damped
externally
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Wittenberg Nico
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH323037A publication Critical patent/CH323037A/de

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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/06—Gramophone pick-ups using a stylus; Recorders using a stylus comprising two or more styli or transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Moving Of Heads (AREA)
CH323037D 1953-09-17 1954-09-15 Schallplatten-Rillenabtaster mit wenigstens zwei Abtastnadeln, deren Halter äusserlich gedämpft sind CH323037A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL323037X 1953-09-17

Publications (1)

Publication Number Publication Date
CH323037A true CH323037A (de) 1957-07-15

Family

ID=19784069

Family Applications (1)

Application Number Title Priority Date Filing Date
CH323037D CH323037A (de) 1953-09-17 1954-09-15 Schallplatten-Rillenabtaster mit wenigstens zwei Abtastnadeln, deren Halter äusserlich gedämpft sind

Country Status (6)

Country Link
US (1) US3051495A (enrdf_load_stackoverflow)
BE (1) BE531866A (enrdf_load_stackoverflow)
CH (1) CH323037A (enrdf_load_stackoverflow)
DE (1) DE1003966B (enrdf_load_stackoverflow)
FR (1) FR1108245A (enrdf_load_stackoverflow)
GB (1) GB755801A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245690A (en) * 1963-09-18 1966-04-12 Dorothea M Weitzner Adjustable multi-needle tone arm for phonograph records
US4194744A (en) * 1978-02-01 1980-03-25 Shure Brothers, Incorporated Phonograph pick-up transducer using a one-piece bearing and inertial damper fabricated from different materials

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554209A (en) * 1945-12-29 1951-05-22 Gen Electric Dual stylus phonograph pickup for multispeed record players
US2658763A (en) * 1948-07-31 1953-11-10 Rca Corp Phonograph pickup device and the like
US2601126A (en) * 1948-11-04 1952-06-17 Astatic Corp Universal phonograph tone arm
US2586362A (en) * 1949-03-11 1952-02-19 Magnavox Co Dual point phonograph pickup stylus
US2639156A (en) * 1949-10-29 1953-05-19 Gen Electric Double-twist phonograph stylus assembly

Also Published As

Publication number Publication date
GB755801A (en) 1956-08-29
FR1108245A (fr) 1956-01-10
DE1003966B (de) 1957-03-07
US3051495A (en) 1962-08-28
BE531866A (enrdf_load_stackoverflow)

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