NO124803B - - Google Patents
Download PDFInfo
- Publication number
- NO124803B NO124803B NO215969A NO215969A NO124803B NO 124803 B NO124803 B NO 124803B NO 215969 A NO215969 A NO 215969A NO 215969 A NO215969 A NO 215969A NO 124803 B NO124803 B NO 124803B
- Authority
- NO
- Norway
- Prior art keywords
- erasing head
- ferrite block
- head according
- magnetic cores
- erasing
- Prior art date
Links
- 229910000859 α-Fe Inorganic materials 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681774341 DE1774341A1 (de) | 1968-05-28 | 1968-05-28 | Trennspurfreier Mehrspur-Loeschkopf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO124803B true NO124803B (de) | 1972-06-05 |
Family
ID=5702111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO215969A NO124803B (de) | 1968-05-28 | 1969-05-27 |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT301202B (de) |
| CH (1) | CH504074A (de) |
| DE (1) | DE1774341A1 (de) |
| DK (1) | DK128466B (de) |
| FR (1) | FR2009467A1 (de) |
| GB (1) | GB1254043A (de) |
| NO (1) | NO124803B (de) |
| SE (1) | SE339886B (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291615A (en) * | 1970-05-26 | 1972-10-04 | Int Computers Ltd | Improvements in or relating to magnetic recording apparatus |
-
1968
- 1968-05-28 DE DE19681774341 patent/DE1774341A1/de active Pending
-
1969
- 1969-05-16 AT AT469969A patent/AT301202B/de not_active IP Right Cessation
- 1969-05-23 GB GB2651569A patent/GB1254043A/en not_active Expired
- 1969-05-23 DK DK281469A patent/DK128466B/da unknown
- 1969-05-27 SE SE743569A patent/SE339886B/xx unknown
- 1969-05-27 NO NO215969A patent/NO124803B/no unknown
- 1969-05-27 CH CH801869A patent/CH504074A/de not_active IP Right Cessation
- 1969-05-27 FR FR6917148A patent/FR2009467A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB1254043A (en) | 1971-11-17 |
| CH504074A (de) | 1971-02-28 |
| DK128466B (da) | 1974-05-06 |
| DE1774341A1 (de) | 1972-01-27 |
| FR2009467A1 (de) | 1970-02-06 |
| AT301202B (de) | 1972-08-25 |
| SE339886B (de) | 1971-10-25 |
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