JPS54146607A - Tone-arm device - Google Patents
Tone-arm deviceInfo
- Publication number
- JPS54146607A JPS54146607A JP5430478A JP5430478A JPS54146607A JP S54146607 A JPS54146607 A JP S54146607A JP 5430478 A JP5430478 A JP 5430478A JP 5430478 A JP5430478 A JP 5430478A JP S54146607 A JPS54146607 A JP S54146607A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- arm
- tone
- circuit
- speed set
- 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
Abstract
PURPOSE: To positively control arbitrary fixed speed servo-operation by a simple structure, by mounting a means for applying motional feedback and a turning speed set means to an electromagnetic means for rotating a tone-arm in the horizontal direction.
CONSTITUTION: Variable regulators 34a, 34b are changed over by means of a switch 34c of a speed set instrument 34, speed set signals in the desired direction are fed to an amplifying and serve-circuit 33 forming a motional feedback MFB circuit with each coil 22, 23 for horizontal detection and horizontal drive and speed-bias is applied. Since the output of the circuit 33 is supplied to the coil 23 for driving a tone-arm 1 in the horizontal direction, the arm 1 turns in the horizontal direction at fixed constant speed. Thus, arbitrary fixed speed servo-operation can positively be controlled only by adjusting the variable regulators of the speed set instrument.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5430478A JPS54146607A (en) | 1978-05-08 | 1978-05-08 | Tone-arm device |
AU46662/79A AU524048B2 (en) | 1978-05-08 | 1979-05-02 | Tone arm assembly |
CA326,841A CA1104940A (en) | 1978-05-08 | 1979-05-03 | Tone arm assembly |
NL7903611A NL7903611A (en) | 1978-05-08 | 1979-05-08 | TONE LOWER UNIT. |
US06/036,992 US4241926A (en) | 1978-05-08 | 1979-05-08 | Tone arm assembly |
FR7911637A FR2425691B1 (en) | 1978-05-08 | 1979-05-08 | READING ARM ASSEMBLY |
GB7915759A GB2020880B (en) | 1978-05-08 | 1979-05-08 | Record player tone arm assembly damping vibrations |
DE19792918525 DE2918525A1 (en) | 1978-05-08 | 1979-05-08 | TONE ARM SUPPORT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5430478A JPS54146607A (en) | 1978-05-08 | 1978-05-08 | Tone-arm device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54146607A true JPS54146607A (en) | 1979-11-16 |
Family
ID=12966824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5430478A Pending JPS54146607A (en) | 1978-05-08 | 1978-05-08 | Tone-arm device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54146607A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4906923A (en) * | 1985-11-19 | 1990-03-06 | Kabushiki Kaisha Toshiba | Speed detecting apparatus including a multi-coil device |
WO2021260973A1 (en) * | 2020-06-22 | 2021-12-30 | 株式会社 小笠原プレシジョンラボラトリー | Tone arm and record player |
-
1978
- 1978-05-08 JP JP5430478A patent/JPS54146607A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4906923A (en) * | 1985-11-19 | 1990-03-06 | Kabushiki Kaisha Toshiba | Speed detecting apparatus including a multi-coil device |
WO2021260973A1 (en) * | 2020-06-22 | 2021-12-30 | 株式会社 小笠原プレシジョンラボラトリー | Tone arm and record player |
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