NL231921A - - Google Patents

Info

Publication number
NL231921A
NL231921A NL231921DA NL231921A NL 231921 A NL231921 A NL 231921A NL 231921D A NL231921D A NL 231921DA NL 231921 A NL231921 A NL 231921A
Authority
NL
Netherlands
Application number
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.)
Publication of NL231921A publication Critical patent/NL231921A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Moving Of Heads (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
NL231921D 1957-10-08 NL231921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31481/57A GB856829A (en) 1957-10-08 1957-10-08 Improvements in gramophone pick-ups

Publications (1)

Publication Number Publication Date
NL231921A true NL231921A (en)

Family

ID=10323744

Family Applications (2)

Application Number Title Priority Date Filing Date
NL103122D NL103122C (en) 1957-10-08
NL231921D NL231921A (en) 1957-10-08

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL103122D NL103122C (en) 1957-10-08

Country Status (7)

Country Link
US (1) US2984711A (en)
BE (1) BE571819A (en)
CH (1) CH363499A (en)
DE (1) DE1113584B (en)
FR (1) FR1212894A (en)
GB (1) GB856829A (en)
NL (2) NL231921A (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB394325A (en) * 1931-12-14 1933-06-14 Alan Dower Blumlein Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems
US2105916A (en) * 1934-09-05 1938-01-18 Bell Telephone Labor Inc Sound reproducing system
US2114471A (en) * 1936-06-20 1938-04-19 Bell Telephone Labor Inc Sound recording and reproducing system
DE816311C (en) * 1949-05-04 1951-10-08 Telefunken Gmbh Pickups
US2875282A (en) * 1953-10-06 1959-02-24 Earl M Reiback Binaural phonograph pickup
US2864897A (en) * 1958-02-17 1958-12-16 Hoffman Electronics Corp Universal phonograph pickup head or the like

Also Published As

Publication number Publication date
BE571819A (en)
GB856829A (en) 1960-12-21
CH363499A (en) 1962-07-31
NL103122C (en)
DE1113584B (en) 1961-09-07
FR1212894A (en) 1960-03-28
US2984711A (en) 1961-05-16

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