JPS61145305U - - Google Patents
Info
- Publication number
- JPS61145305U JPS61145305U JP2628885U JP2628885U JPS61145305U JP S61145305 U JPS61145305 U JP S61145305U JP 2628885 U JP2628885 U JP 2628885U JP 2628885 U JP2628885 U JP 2628885U JP S61145305 U JPS61145305 U JP S61145305U
- Authority
- JP
- Japan
- Prior art keywords
- erasing
- current
- reproducing device
- magnetic recording
- oscillation frequency
- 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
- 230000010355 oscillation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Digital Magnetic Recording (AREA)
- Magnetic Heads (AREA)
Description
第１図はこの考案の一実施例を示す磁気記録再
生装置の要部回路図、第２図は消去電流と消去率
を示す特性図、第３図は消去電流と歪率を示す特
性図である。
１……消去ヘツド、３……消去電流可変調整器
、４……周波数切換スイツチ、５……バイアス補
正スイツチ。
Fig. 1 is a circuit diagram of the main part of a magnetic recording/reproducing device showing an embodiment of this invention, Fig. 2 is a characteristic diagram showing the erasing current and erasing rate, and Fig. 3 is a characteristic diagram showing the erasing current and distortion rate. be. 1... Erasing head, 3... Erasing current variable regulator, 4... Frequency selection switch, 5... Bias correction switch.
Claims (1)
ツドに消去電流を供給する発振器とを備えた磁気
記録再生装置であつて、該発振器はその消去電流
および発振周波数を外部操作により可変できるよ
うに消去電流設定操作釦および発振周波数設定操
作釦を有した磁気記録再生装置。 A magnetic recording/reproducing device comprising an erasing head for erasing a magnetic tape and an oscillator supplying an erasing current to the erasing head, the oscillator generating an erasing current so that its erasing current and oscillation frequency can be varied by external operation. A magnetic recording and reproducing device having a setting operation button and an oscillation frequency setting operation button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2628885U JPS61145305U (en) | 1985-02-27 | 1985-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2628885U JPS61145305U (en) | 1985-02-27 | 1985-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61145305U true JPS61145305U (en) | 1986-09-08 |
Family
ID=30522154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2628885U Pending JPS61145305U (en) | 1985-02-27 | 1985-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61145305U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53130849A (en) * | 1977-04-20 | 1978-11-15 | Hitachi Ltd | Control system for controlling amount of agglomerating agent added in purification tank |
| JPS54143296A (en) * | 1978-04-28 | 1979-11-08 | Shinji Takasaki | Flock measuring device |
-
1985
- 1985-02-27 JP JP2628885U patent/JPS61145305U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53130849A (en) * | 1977-04-20 | 1978-11-15 | Hitachi Ltd | Control system for controlling amount of agglomerating agent added in purification tank |
| JPS54143296A (en) * | 1978-04-28 | 1979-11-08 | Shinji Takasaki | Flock measuring device |
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