ES257760A1 - Electrostatic pick up - Google Patents

Electrostatic pick up

Info

Publication number
ES257760A1
ES257760A1 ES0257760A ES257760A ES257760A1 ES 257760 A1 ES257760 A1 ES 257760A1 ES 0257760 A ES0257760 A ES 0257760A ES 257760 A ES257760 A ES 257760A ES 257760 A1 ES257760 A1 ES 257760A1
Authority
ES
Spain
Prior art keywords
inserts
fixed
sides
sheet
metal
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES0257760A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of ES257760A1 publication Critical patent/ES257760A1/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00Electrostatic transducers
    • H04R19/06Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R19/08Gramophone 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)
  • Dry Development In Electrophotography (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Manipulator (AREA)

Abstract

Improvements introduced in the electrostatic phono-developers, characterized by the fact that the electrostatic phono-developer is constituted by a thin sheet of metal or other conveniently flexible metal material, essentially rectangular, supported and joined, in correspondence of one of its minor sides, between protruding means made or being on two opposite sides of rigid insulating material, one or two metal inserts respectively being applied and fixed to the interior walls of said sides; Between the central flexible sheet and said metal insert or inserts (and the two faces respectively facing each other) there is a narrow space free of air to allow the mobile central sheet to be able to move elastically without contacting the opposite fixed inserts. to her; On the two major opposite sides of the movable sheet, near the end of it, two points of hard stone (of known constitution and shape) are joined, one suitable to follow the undulations of the grooves of the disks that operate at a speed of 78 revolutions per minute, and the other suitable to follow the undulations of the grooves of the discs that operate at a speed of 45 revolutions or 33 1/3 revolutions per minute (microgroove); the group consisting of the two rigid sides comprising the fixed insert or inserts between which the free part of the flexible sheet can move elastically is attached to a rotating axis on a support and controlled by a button, the support being able to be fixed on a phonographic developer arm of any known type. (Machine-translation by Google Translate, not legally binding)
ES0257760A 1959-05-08 1960-04-30 Electrostatic pick up Expired ES257760A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT772259 1959-05-08

Publications (1)

Publication Number Publication Date
ES257760A1 true ES257760A1 (en) 1960-11-01

Family

ID=11125284

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0257760A Expired ES257760A1 (en) 1959-05-08 1960-04-30 Electrostatic pick up

Country Status (5)

Country Link
CH (1) CH379144A (en)
DE (1) DE1814848U (en)
ES (1) ES257760A1 (en)
FR (1) FR1256439A (en)
GB (1) GB944926A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176993A (en) * 1963-04-04 1965-04-06 Jensen Ind Inc Adjustable mounting for phonograph pickups

Also Published As

Publication number Publication date
GB944926A (en) 1963-12-18
FR1256439A (en) 1961-03-17
DE1814848U (en) 1960-07-14
CH379144A (en) 1964-06-30

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