GB909597A - Phonograph pickup - Google Patents
Phonograph pickupInfo
- Publication number
- GB909597A GB909597A GB517559A GB517559A GB909597A GB 909597 A GB909597 A GB 909597A GB 517559 A GB517559 A GB 517559A GB 517559 A GB517559 A GB 517559A GB 909597 A GB909597 A GB 909597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arm
- stylus
- yoke
- reproducing
- feb
- 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
- 241001422033 Thestylus Species 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/16—Mounting or connecting stylus to transducer with or without damping means
-
- 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
-
- 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
- H04R17/08—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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electrophonic Musical Instruments (AREA)
- Moving Of Heads (AREA)
Abstract
909,597. Stereophonic pick-ups. RADIO CORPORATION OF AMERICA. Feb. 13, 1959 [Feb. 27, 1958; Aug. 6, 1958], No. 5175/59. Class 40 (4). A pick-up for reproducing two separate channels recorded at 45 degrees to the record surface in a single groove comprises two flat piezo-electric elements 28, 30, coupled to a stylus arm 56 by a yoke 36 with two arms at right-angles and a re-entrant portion in the angle to engage the stylus arm. The elements 28, 30, which may be crystal or ceramic plates are held in resilient blocks 32, 34. The blocks are gripped in grooves in the two parts 14, 16 of the moulded cartridge. The parts are riveted together at 18, 22 and the cartridge is secured to the rick-up arm by screws 26. Two stylus arms 52, 56 are fixed in a resilient support 62 on a plate 44 turning about a pivot 64. Either arm may be brought into engagement with the re-entrant portion of the coupling. The two positions are defined by a U-shaped key-way 84 in the end of the casing which guides an extension 80, 82 on the arm 44. In a modification, Fig. 5, having only a single stylus arm 52<SP>1</SP>, the yoke 36<SP>1</SP> is formed of polyvinyl cloride with apertures for receiving the piezo-electric elements 28<SP>1</SP>, 301. When used with a suitable network, the pickup may be used for reproducing hill-and-dale and lateral cut records.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB909598D GB909598A (en) | 1958-02-27 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US717859A US3309469A (en) | 1958-02-27 | 1958-02-27 | Phonograph pickup |
| US753482A US3108161A (en) | 1958-08-06 | 1958-08-06 | Stereophonic phonograph pickup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB909597A true GB909597A (en) | 1962-10-31 |
Family
ID=27109789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB517559A Expired GB909597A (en) | 1958-02-27 | 1959-02-13 | Phonograph pickup |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS516521B1 (en) |
| CH (1) | CH369291A (en) |
| DE (1) | DE1120725B (en) |
| DK (3) | DK111987B (en) |
| ES (1) | ES247501A1 (en) |
| FR (1) | FR1227317A (en) |
| GB (1) | GB909597A (en) |
| NL (4) | NL296654A (en) |
-
0
- NL NL137499D patent/NL137499C/xx active
- NL NL109649D patent/NL109649C/xx active
- NL NL236540D patent/NL236540A/xx unknown
- NL NL296654D patent/NL296654A/xx unknown
-
1959
- 1959-02-12 DE DER24946A patent/DE1120725B/en active Pending
- 1959-02-13 GB GB517559A patent/GB909597A/en not_active Expired
- 1959-02-24 ES ES0247501A patent/ES247501A1/en not_active Expired
- 1959-02-24 FR FR787583A patent/FR1227317A/en not_active Expired
- 1959-02-25 CH CH7009459A patent/CH369291A/en unknown
- 1959-02-26 DK DK72859A patent/DK111987B/en unknown
-
1965
- 1965-03-08 DK DK119565A patent/DK126455B/en unknown
-
1968
- 1968-02-16 DK DK64068A patent/DK115015B/en unknown
-
1973
- 1973-12-11 JP JP13743073A patent/JPS516521B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL109649C (en) | |
| NL296654A (en) | |
| JPS516521B1 (en) | 1976-02-28 |
| DK111987B (en) | 1968-10-28 |
| DK115015B (en) | 1969-08-25 |
| ES247501A1 (en) | 1959-06-16 |
| DE1120725B (en) | 1961-12-28 |
| FR1227317A (en) | 1960-08-19 |
| DK126455B (en) | 1973-07-16 |
| NL236540A (en) | |
| NL137499C (en) | |
| CH369291A (en) | 1963-05-15 |
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