JPS5525802A - Record head driving circuit - Google Patents
Record head driving circuitInfo
- Publication number
- JPS5525802A JPS5525802A JP9594178A JP9594178A JPS5525802A JP S5525802 A JPS5525802 A JP S5525802A JP 9594178 A JP9594178 A JP 9594178A JP 9594178 A JP9594178 A JP 9594178A JP S5525802 A JPS5525802 A JP S5525802A
- Authority
- JP
- Japan
- Prior art keywords
- record
- capacitor
- frequency
- amplifier
- serial resonance
- 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
Landscapes
- Amplifiers (AREA)
- Digital Magnetic Recording (AREA)
Abstract
PURPOSE: To eliminate the evil effect given to the record signal through a simple circuit by inserting the DC blocking capacitor between the output terminals of the record amplifier and the bias amplifier.
CONSTITUTION: The serial resonance is caused by capacitor 14 and record head 7. For the frequency property, the response reaches its peak at serial resonance frequency f1 and is made flat with connection of resistor 15 featuring a comparatively large value to be then increased at serial resonance frequency f2 and with connection of capacitor 16. Frequency f2 is almost decided by the inductance of head 7 and the capacitance of capacitor 16. And if this frequency is selected at about 30KHz, the high band correction becomes possible without providing the peaking circuit to the record amplifier. Also the vias level can be varied according to the types of the magnetic tapes by connecting the variable resistor in the necessary number of units in parallel to variable resistor 17. Thus the evil effect given to the record signal can be eliminated in a simple way.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9594178A JPS5951043B2 (en) | 1978-08-07 | 1978-08-07 | Recording head drive circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9594178A JPS5951043B2 (en) | 1978-08-07 | 1978-08-07 | Recording head drive circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5525802A true JPS5525802A (en) | 1980-02-23 |
JPS5951043B2 JPS5951043B2 (en) | 1984-12-12 |
Family
ID=14151283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9594178A Expired JPS5951043B2 (en) | 1978-08-07 | 1978-08-07 | Recording head drive circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5951043B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112811U (en) * | 1982-01-21 | 1983-08-02 | 株式会社コロナ | Radiant heater tube |
JPH07111827A (en) * | 1991-12-28 | 1995-05-02 | Young Life Internatl Co Ltd | Scissors with gripper |
-
1978
- 1978-08-07 JP JP9594178A patent/JPS5951043B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58112811U (en) * | 1982-01-21 | 1983-08-02 | 株式会社コロナ | Radiant heater tube |
JPH07111827A (en) * | 1991-12-28 | 1995-05-02 | Young Life Internatl Co Ltd | Scissors with gripper |
Also Published As
Publication number | Publication date |
---|---|
JPS5951043B2 (en) | 1984-12-12 |
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