JPS6413202A - Rotary drum device - Google Patents
Rotary drum deviceInfo
- Publication number
- JPS6413202A JPS6413202A JP16844487A JP16844487A JPS6413202A JP S6413202 A JPS6413202 A JP S6413202A JP 16844487 A JP16844487 A JP 16844487A JP 16844487 A JP16844487 A JP 16844487A JP S6413202 A JPS6413202 A JP S6413202A
- Authority
- JP
- Japan
- Prior art keywords
- time
- reproducing
- recording
- storage battery
- contacts
- 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
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To prevent the irregularity of the revolution of a rotary drum at the time of recording and reproducing by detaching a conductive brush for charging a storage battery from a conductive ring at the time of the recording and the reproducing. CONSTITUTION:Except at the time of the recording and the reproducing, the conductive brushes 30A, 30B are connected to the conductive rings 28A, 28B, and at the same time, the movable contacts 40a, 42a of selector switches 40, 42 are connected to the contacts 40c, 42c of the rings 28A, 28B sides. Thus, the storage battery 18 is supplied with power from a storage battery power supply circuit 34, and charged. On the other hand, at the time of the recording and has reproducing, the brushes 30A, 30B are detached from the rings 28A, 28B, and at the same time, the contacts 40a, 42a of the switches 40, 42 are connected to the contacts 40b, 42b of a preamplifier 44 side. Thus, the revolution of the rotary drum 10 is stabilized, and besides, the amplifier 44 comes possible to be operated by the storage battery 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16844487A JPS6413202A (en) | 1987-07-06 | 1987-07-06 | Rotary drum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16844487A JPS6413202A (en) | 1987-07-06 | 1987-07-06 | Rotary drum device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6413202A true JPS6413202A (en) | 1989-01-18 |
Family
ID=15868228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16844487A Pending JPS6413202A (en) | 1987-07-06 | 1987-07-06 | Rotary drum device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6413202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1111590A2 (en) * | 1997-06-02 | 2001-06-27 | Deutsche Thomson-Brandt Gmbh | Head drum for a magnetic tape recorder |
-
1987
- 1987-07-06 JP JP16844487A patent/JPS6413202A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1111590A2 (en) * | 1997-06-02 | 2001-06-27 | Deutsche Thomson-Brandt Gmbh | Head drum for a magnetic tape recorder |
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