CH247481A - Phonographic pick-up comprising a piezoelectric crystal. - Google Patents

Phonographic pick-up comprising a piezoelectric crystal.

Info

Publication number
CH247481A
CH247481A CH247481DA CH247481A CH 247481 A CH247481 A CH 247481A CH 247481D A CH247481D A CH 247481DA CH 247481 A CH247481 A CH 247481A
Authority
CH
Switzerland
Prior art keywords
piezoelectric crystal
phonographic
pick
phonographic pick
piezoelectric
Prior art date
Application number
Other languages
French (fr)
Inventor
Beretzki Daniel-Rene
Original Assignee
Beretzki Daniel Rene
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 Beretzki Daniel Rene filed Critical Beretzki Daniel Rene
Publication of CH247481A publication Critical patent/CH247481A/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
CH247481D 1943-12-03 1945-05-19 Phonographic pick-up comprising a piezoelectric crystal. CH247481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR986662T 1943-12-03

Publications (1)

Publication Number Publication Date
CH247481A true CH247481A (en) 1947-03-15

Family

ID=9538263

Family Applications (1)

Application Number Title Priority Date Filing Date
CH247481D CH247481A (en) 1943-12-03 1945-05-19 Phonographic pick-up comprising a piezoelectric crystal.

Country Status (2)

Country Link
CH (1) CH247481A (en)
FR (1) FR986662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891145C (en) * 1949-04-20 1953-09-24 Telefunken Gmbh Piezoelectric pickup

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3691316A (en) * 1969-05-09 1972-09-12 Matsushita Electric Industrial Co Ltd Semiconductor stress transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891145C (en) * 1949-04-20 1953-09-24 Telefunken Gmbh Piezoelectric pickup

Also Published As

Publication number Publication date
FR986662A (en) 1951-08-03

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