JPS5573920A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS5573920A JPS5573920A JP14672878A JP14672878A JPS5573920A JP S5573920 A JPS5573920 A JP S5573920A JP 14672878 A JP14672878 A JP 14672878A JP 14672878 A JP14672878 A JP 14672878A JP S5573920 A JPS5573920 A JP S5573920A
- Authority
- JP
- Japan
- Prior art keywords
- head
- gap
- reproducing
- recording
- depth
- 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 ensure a normal function of writing at the point in time of detection of deterioration in read function by forming a magnetic head with a recording and reproducing heads made in one while the gap depth of the magnetic head is made greater than that of the reproducing head.
CONSTITUTION: Recording head 1 with gap 7 formed by butting core 4 wound with coil 6 against core 5 with interposing spacer 8, and reproducing head 2 with gap 12 formed by butting core 9 wound similarly with coil 11 against core 10 with interposing spacer 13 are joined in one with shield plate 3 between the both to form a two-gap head, where depth (a) of recording gap 7 of recording head 1 is made greater than depth (b) of reproducing gap 12 of reproducing head 2. In case of long- term use, the gap of reproducing head 2 wears earlier between two above mention head cores, which causes a read defect, and on detection of it, the head is replaced to prevent a write-defective card from being issued.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14672878A JPS5573920A (en) | 1978-11-27 | 1978-11-27 | Magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14672878A JPS5573920A (en) | 1978-11-27 | 1978-11-27 | Magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5573920A true JPS5573920A (en) | 1980-06-04 |
Family
ID=15414222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14672878A Pending JPS5573920A (en) | 1978-11-27 | 1978-11-27 | Magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5573920A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6829818B2 (en) * | 2000-09-12 | 2004-12-14 | Tdk Corporation | Manufacturing method of a head gimbal assembly |
-
1978
- 1978-11-27 JP JP14672878A patent/JPS5573920A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6829818B2 (en) * | 2000-09-12 | 2004-12-14 | Tdk Corporation | Manufacturing method of a head gimbal assembly |
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