| 发明名称 |
Device permitting the control of static electrical charge of phonographic discs. |
| 摘要 |
A device for detecting the static charges of phonographic discs. The device comprises: 1) amplifier having very high impedance (T1 - T4), 2) amplifier of negative signals feeding LED 1, 3) amplifier of positive signals feeding LED 2. Application: joint use with antistatic accessories for phonographic discs. <IMAGE>
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| 申请公布号 |
EP0044368(A1) |
申请公布日期 |
1982.01.27 |
| 申请号 |
EP19800400978 |
申请日期 |
1980.06.30 |
| 申请人 |
METTLER, JULES EUGENE JEAN |
发明人 |
METTLER, JULES EUGENE JEAN |
| 分类号 |
G01R19/14;G01R29/12;(IPC1-7):G01R29/12 |
主分类号 |
G01R19/14 |
| 代理机构 |
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代理人 |
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| 地址 |
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