ES257760A1 - Electrostatic pick up - Google Patents
Electrostatic pick upInfo
- 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
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
- H04R19/00—Electrostatic transducers
- H04R19/06—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R19/08—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)
- 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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3176993A (en) * | 1963-04-04 | 1965-04-06 | Jensen Ind Inc | Adjustable mounting for phonograph pickups |
-
1960
- 1960-04-25 CH CH470760A patent/CH379144A/en unknown
- 1960-04-28 GB GB1503360A patent/GB944926A/en not_active Expired
- 1960-04-28 DE DE1960C0007135 patent/DE1814848U/en not_active Expired
- 1960-04-30 ES ES0257760A patent/ES257760A1/en not_active Expired
- 1960-05-06 FR FR826506A patent/FR1256439A/en not_active Expired
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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