GB591865A - Improvements in pick-ups - Google Patents
Improvements in pick-upsInfo
- Publication number
- GB591865A GB591865A GB1731044A GB1731044A GB591865A GB 591865 A GB591865 A GB 591865A GB 1731044 A GB1731044 A GB 1731044A GB 1731044 A GB1731044 A GB 1731044A GB 591865 A GB591865 A GB 591865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pick
- stylus
- record
- disc
- point
- 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 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 241000054817 Lycaena dione Species 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- -1 copper Chemical class 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Transmitters (AREA)
Abstract
591,865. Electric pick-ups. BURGESS, A. F. (Zenith Radio Corporation). Sept. 11, 1944, No. 17310. [Class 40 (iv)] [Also in Group XXXVIII] In a gramophone pickup in which the movement of the stylus varies an inductance associated with the tuned circuit of a high-frequency oscillator, thereby varying the frequency of the oscillations generated, one part of the inductance is carried by the stylus intermediate its point of support in the pick-up and its record-engaging point. As shown, the stylus 13 carries a disc 20 mounted adjacent to a coil 21 fixed to the body of the pick-up. The disc may be magnetic or of a conducting metal or alloy, e.g. copper, nickel, or silver or an aluminium alloy, and may be separate from or integral with the stylus 13. In an alternative construction, Fig. 6 (not shown), the positions of the disc 20 and coil 21 are interchanged. The stylus 13 is held by means of a cross-head 15 between resilient blocks 16 clamped by a screw 19 engaging a bearing plate 18. The pick-up is mounted by a blade-spring 8 on the end of the arm 1, the spring being of sufficient strength to enable the stylus to support the pick-up, and the pick-up casing is provided with a portion 29 which lies adjacent to the surface of the record and engages the record in the case of sudden shocks to relieve pressure on the stylus point. The pick-up frame members 9, 10 are preferably of low-loss insulating material such as polystyrene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE480346D BE480346A (en) | 1944-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB591865A true GB591865A (en) | 1947-09-01 |
Family
ID=1733016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1731044A Expired GB591865A (en) | 1944-09-11 | 1944-09-11 | Improvements in pick-ups |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB591865A (en) |
-
1944
- 1944-09-11 GB GB1731044A patent/GB591865A/en not_active Expired
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