GB863889A - Piezoelectric phonograph pickup - Google Patents
Piezoelectric phonograph pickupInfo
- Publication number
- GB863889A GB863889A GB1841/59A GB184159A GB863889A GB 863889 A GB863889 A GB 863889A GB 1841/59 A GB1841/59 A GB 1841/59A GB 184159 A GB184159 A GB 184159A GB 863889 A GB863889 A GB 863889A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transducers
- coupling member
- jan
- casing
- rubber
- 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
- 230000008878 coupling Effects 0.000 abstract 4
- 238000010168 coupling process Methods 0.000 abstract 4
- 238000005859 coupling reaction Methods 0.000 abstract 4
- 229910010293 ceramic material Inorganic materials 0.000 abstract 1
- 239000002178 crystalline material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 230000010287 polarization Effects 0.000 abstract 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 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
- 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)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
863,889. Stereophonic pick-ups. CLEVITE CORPORATION. Jan. 19, 1959 [Jan. 20, 1958], No. 1841/59. Class 40 (4). A phonograph pick-up comprises two piezoelectric transducers linked with a single coupling member and a single stylus. As seen in Fig. 3, the transducers 27 and 28 are mounted in a block of rubber 26 at one end and are attached to a flat spring wire coupling member 29 which may be sheathed in plastic material. A notched portion 23 in the coupling member engages a compliant stylus arm 31 mounted as shown in Fig. 4 outside a casing 25, portion 23 of the coupling member 29 projecting out of the casing through slot 21. The transducers 27 and 28 are preferably set at right angles to each other and at 45 degrees to the vertical, but may alternatively lie in a common horizontal plane. The transducers are preferably of polarized ceramic material or a piezo-electric crystalline material such as Rochelle salt. The transducers may be connected in parallel to reproduce laterally cut recordings. As shown in Fig. 7, the transducers, here numbered 40 and 41, are of opposite polarization and may be mounted in rubber between electrodes 47, 50 and 51, which provide a parallel connection. If the transducers lie in the same horizontal plane and the top electrode of one is connected to the bottom electrode of the other (see Fig. 8, not shown), effects due to record warpage and turntable rumble cancel out.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US863889XA | 1958-01-20 | 1958-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB863889A true GB863889A (en) | 1961-03-29 |
Family
ID=22198254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1841/59A Expired GB863889A (en) | 1958-01-20 | 1959-01-19 | Piezoelectric phonograph pickup |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB863889A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113783A (en) * | 1962-07-12 | 1963-12-10 | Oskar Steidinger And Siegfried | Pick-up for scanning a sound groove for two-coordinate recording |
-
1959
- 1959-01-19 GB GB1841/59A patent/GB863889A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113783A (en) * | 1962-07-12 | 1963-12-10 | Oskar Steidinger And Siegfried | Pick-up for scanning a sound groove for two-coordinate recording |
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