JPS5039903A - Pickup system for sound reproducer - Google Patents
Pickup system for sound reproducerInfo
- Publication number
- JPS5039903A JPS5039903A JP9073273A JP9073273A JPS5039903A JP S5039903 A JPS5039903 A JP S5039903A JP 9073273 A JP9073273 A JP 9073273A JP 9073273 A JP9073273 A JP 9073273A JP S5039903 A JPS5039903 A JP S5039903A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- tensile strength
- expansion ratio
- shore hardness
- cantilever
- 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.)
- Pending
Links
- 239000011148 porous material Substances 0.000 abstract 3
- 229910021397 glassy carbon Inorganic materials 0.000 abstract 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000005297 pyrex Substances 0.000 abstract 1
Abstract
Use of "Glassy Carbon" as cantilever. Fig.1 shows cantilever assembly where 1 stylus, 2 cantilever, 3 magnet, 4 tension wire.
Table 1: comparison of material specifications
Glassy Carbon(CG-20)
density g/cm3 1.47-1.50
pore rate (%) 1-3
Shore hardness 100-110
Young modulus kg/mm2 3000-3300
Tensile strength kg/cm2 1000-1200
Heat-Expansion ratio(1/C) 2.0-2.2x10^(-6)
Pure Graphite
density g/cm3 1.75-1.92
pore rate (%) 8-15
Shore hardness 45-55
Young modulus kg/mm2 1100-1200
Tensile strength kg/cm2 400-500
Heat-Expansion ratio(1/C) 2.0-2.5x10^(-6)
Pyrex glass
density g/cm3 2.23
pore rate (%) ----
Shore hardness ----
Young modulus kg/mm2 9000
Tensile strength kg/cm2 400-800
Heat-Expansion ratio(1/C) 3.2x10^(-6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9073273A JPS5039903A (en) | 1973-08-13 | 1973-08-13 | Pickup system for sound reproducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9073273A JPS5039903A (en) | 1973-08-13 | 1973-08-13 | Pickup system for sound reproducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5039903A true JPS5039903A (en) | 1975-04-12 |
Family
ID=14006724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9073273A Pending JPS5039903A (en) | 1973-08-13 | 1973-08-13 | Pickup system for sound reproducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5039903A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265403A (en) * | 1975-11-26 | 1977-05-30 | Pioneer Electronic Corp | Pickup cartridge cantilever and method of producing same |
| JPS6125325U (en) * | 1984-07-20 | 1986-02-15 | 日立工機株式会社 | parts supply device |
-
1973
- 1973-08-13 JP JP9073273A patent/JPS5039903A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265403A (en) * | 1975-11-26 | 1977-05-30 | Pioneer Electronic Corp | Pickup cartridge cantilever and method of producing same |
| JPS6125325U (en) * | 1984-07-20 | 1986-02-15 | 日立工機株式会社 | parts supply device |
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