JPS6215848Y2 - - Google Patents
Info
- Publication number
- JPS6215848Y2 JPS6215848Y2 JP1985099009U JP9900985U JPS6215848Y2 JP S6215848 Y2 JPS6215848 Y2 JP S6215848Y2 JP 1985099009 U JP1985099009 U JP 1985099009U JP 9900985 U JP9900985 U JP 9900985U JP S6215848 Y2 JPS6215848 Y2 JP S6215848Y2
- Authority
- JP
- Japan
- Prior art keywords
- preamplifier
- input terminal
- capacitor
- utility
- model registration
- 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.)
- Expired
Links
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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
 
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US676237 | 1976-04-12 | ||
| US05/676,237 US4041538A (en) | 1976-04-12 | 1976-04-12 | Low noise magnetic transducer preamplifier having flat response | 
Publications (2)
| Publication Number | Publication Date | 
|---|---|
| JPS6121009U JPS6121009U (ja) | 1986-02-06 | 
| JPS6215848Y2 true JPS6215848Y2 (en:Method) | 1987-04-22 | 
Family
ID=24713733
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| JP4047677A Pending JPS52131708A (en) | 1976-04-12 | 1977-04-11 | Regenerative preamplifier | 
| JP1985099009U Granted JPS6121009U (ja) | 1976-04-12 | 1985-06-28 | 再生前置増幅器 | 
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| JP4047677A Pending JPS52131708A (en) | 1976-04-12 | 1977-04-11 | Regenerative preamplifier | 
Country Status (2)
| Country | Link | 
|---|---|
| US (1) | US4041538A (en:Method) | 
| JP (2) | JPS52131708A (en:Method) | 
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| US4134140A (en) * | 1976-10-01 | 1979-01-09 | Eastman Technology, Inc. | Voltage mode amplifier for use with a high Q magnetic head | 
| JPS6012683B2 (ja) * | 1977-03-11 | 1985-04-03 | 株式会社日立製作所 | 映像信号再生回路 | 
| US4255769A (en) * | 1979-06-28 | 1981-03-10 | American Optical Corporation | Low-noise preamplifier | 
| JPS56137508A (en) * | 1980-03-28 | 1981-10-27 | Hitachi Ltd | Magnetic recording and reproducing device | 
| US4470020A (en) * | 1982-05-06 | 1984-09-04 | Mohr Daniel R | Virtual ground preamplifier for magnetic phono cartridge | 
| JPH0644326B2 (ja) * | 1984-07-06 | 1994-06-08 | ソニー株式会社 | 磁気記録再生装置 | 
| EP0423166A1 (en) * | 1988-06-21 | 1991-04-24 | The Governors Of Paisley College Of Technology | Improvements in magnetic recording | 
| US5309295A (en) * | 1992-10-08 | 1994-05-03 | International Business Machines Corporation | Method and apparatus for biasing a magneto-resistive head | 
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| GB851052A (en) * | 1955-12-31 | 1960-10-12 | Telefunken Gmbh | Improvements relating to the coupling of an electro-magnetic transducing head or similar signal source to a transistor amplifier | 
| US3027549A (en) * | 1956-06-06 | 1962-03-27 | Ibm | Magnetic transducer | 
| US3683131A (en) * | 1965-06-28 | 1972-08-08 | Bell & Howell Co | Magnetic tape recording circuit | 
| US3530257A (en) * | 1968-07-22 | 1970-09-22 | Teledyne Geotech | Modulation of an oscillatory circuit for driving a magnetic recording head | 
| US3564160A (en) * | 1968-10-11 | 1971-02-16 | Ampex | Dc bias servomethod and apparatus for magnetic recording heads | 
| US3666893A (en) * | 1969-09-25 | 1972-05-30 | Tokyo Shibaura Electric Co | Magnetic eraser with head winding as part of oscillator circuit | 
| JPS5330261Y2 (en:Method) * | 1972-08-28 | 1978-07-28 | ||
| US3838452A (en) * | 1972-12-07 | 1974-09-24 | Honeywell Inc | Recording amplifier for bias-type magnetic recording | 
| JPS5134401Y2 (en:Method) * | 1973-06-13 | 1976-08-25 | 
- 
        1976
        - 1976-04-12 US US05/676,237 patent/US4041538A/en not_active Expired - Lifetime
 
- 
        1977
        - 1977-04-11 JP JP4047677A patent/JPS52131708A/ja active Pending
 
- 
        1985
        - 1985-06-28 JP JP1985099009U patent/JPS6121009U/ja active Granted
 
Also Published As
| Publication number | Publication date | 
|---|---|
| US4041538A (en) | 1977-08-09 | 
| JPS52131708A (en) | 1977-11-04 | 
| JPS6121009U (ja) | 1986-02-06 | 
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