JPS6257904U - - Google Patents
Info
- Publication number
- JPS6257904U JPS6257904U JP14803985U JP14803985U JPS6257904U JP S6257904 U JPS6257904 U JP S6257904U JP 14803985 U JP14803985 U JP 14803985U JP 14803985 U JP14803985 U JP 14803985U JP S6257904 U JPS6257904 U JP S6257904U
- Authority
- JP
- Japan
- Prior art keywords
- erasing
- oscillator
- rotating
- resonant
- rotary
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図はこの考案の一実施例を示すブロツク図
、第２図は電流クロストークの実測値を示す図、
第３図は従来の構成を示すブロツク図である。
１……発振器、２……切換スイツチ、３，３′
……ロータリートランス、４，６……回転消去ヘ
ツド、５，７……コンデンサ、８……切換スイツ
チ。
Figure 1 is a block diagram showing an embodiment of this invention, Figure 2 is a diagram showing actual measured values of current crosstalk,
FIG. 3 is a block diagram showing a conventional configuration. 1... Oscillator, 2... Selector switch, 3, 3'
...Rotary transformer, 4, 6... Rotating erase head, 5, 7... Capacitor, 8... Selector switch.
Claims (1)
と、該回転消去ヘツドに消去電流を供給する発振
器とを備える磁気記録再生装置において、 該回転消去ヘツドはそれぞれコンデンサが並列
接続された共振周波数の異なる共振回路を形成す
ると共に、互に独立したロータリートランスを介
して該発振器に接続され、かつ該発振器は該共振
回路の共振周波数に等しい複数の発振周波数を有
し、この複数の発振周波数に応じて該回転消去ヘ
ツドに消去電流を選択的に供給するように構成さ
れることを特徴とする回転消去ヘツドを備える磁
気記録再生装置。[Claims for Utility Model Registration] A magnetic recording/reproducing device comprising a plurality of rotating erasing heads provided on a rotating drum and an oscillator supplying an erasing current to the rotating erasing heads, each of which has a capacitor connected in parallel. The connected resonant circuits having different resonant frequencies are connected to the oscillator via mutually independent rotary transformers, and the oscillator has a plurality of oscillation frequencies equal to the resonant frequencies of the resonant circuit. 1. A magnetic recording/reproducing device comprising a rotary erasing head, characterized in that it is configured to selectively supply erasing current to the rotary erasing head in accordance with a plurality of oscillation frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14803985U JPH039122Y2 (en) | 1985-09-30 | 1985-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14803985U JPH039122Y2 (en) | 1985-09-30 | 1985-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6257904U true JPS6257904U (en) | 1987-04-10 |
| JPH039122Y2 JPH039122Y2 (en) | 1991-03-07 |
Family
ID=31061945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14803985U Expired JPH039122Y2 (en) | 1985-09-30 | 1985-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039122Y2 (en) |
-
1985
- 1985-09-30 JP JP14803985U patent/JPH039122Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH039122Y2 (en) | 1991-03-07 |
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