JPS5611607A - High frequency bias circuit for multichannel magnetic tape recorder - Google Patents
High frequency bias circuit for multichannel magnetic tape recorderInfo
- Publication number
- JPS5611607A JPS5611607A JP8567379A JP8567379A JPS5611607A JP S5611607 A JPS5611607 A JP S5611607A JP 8567379 A JP8567379 A JP 8567379A JP 8567379 A JP8567379 A JP 8567379A JP S5611607 A JPS5611607 A JP S5611607A
- Authority
- JP
- Japan
- Prior art keywords
- high frequency
- frequencies
- bias circuit
- magnetic tape
- tape recorder
- 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
Landscapes
- Digital Magnetic Recording (AREA)
Abstract
PURPOSE: To avoid the production of beat, by constituting all the high frequency oscillators for bias provided for each channel that all the frequencies are of the same.
CONSTITUTION: The high frequency oscillators 2a, 2b for bias of each channel are electrically coupled with the coupling impedance 5. Thus, drawing-in phenomenon is produced between the frequencies of the high frequency oscillators 2a and 2b closed each other to keep both the frequencies the same. As a result, the production of beat due to the difference between the oscillated frequencies can be avoided and electronic switching is enabled for recording and playback since the high frequency bias circuit can be turned on and off in DC manner with the switches 4a, 4b and the DC power supply 3.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8567379A JPS5611607A (en) | 1979-07-03 | 1979-07-03 | High frequency bias circuit for multichannel magnetic tape recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8567379A JPS5611607A (en) | 1979-07-03 | 1979-07-03 | High frequency bias circuit for multichannel magnetic tape recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5611607A true JPS5611607A (en) | 1981-02-05 |
Family
ID=13865336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8567379A Pending JPS5611607A (en) | 1979-07-03 | 1979-07-03 | High frequency bias circuit for multichannel magnetic tape recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5611607A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869319U (en) * | 1981-11-04 | 1983-05-11 | アイワ株式会社 | Twin cassette tape recorder |
JPS58139309A (en) * | 1982-02-12 | 1983-08-18 | Toshiba Corp | Sound recording bias oscillating circuit |
JPS5910988A (en) * | 1982-07-12 | 1984-01-20 | ホシデン株式会社 | Color liquid crystal display |
JPS5942518U (en) * | 1982-09-10 | 1984-03-19 | アルパイン株式会社 | Tape recorder bias oscillation circuit |
-
1979
- 1979-07-03 JP JP8567379A patent/JPS5611607A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5869319U (en) * | 1981-11-04 | 1983-05-11 | アイワ株式会社 | Twin cassette tape recorder |
JPS58139309A (en) * | 1982-02-12 | 1983-08-18 | Toshiba Corp | Sound recording bias oscillating circuit |
JPS5910988A (en) * | 1982-07-12 | 1984-01-20 | ホシデン株式会社 | Color liquid crystal display |
JPS5942518U (en) * | 1982-09-10 | 1984-03-19 | アルパイン株式会社 | Tape recorder bias oscillation circuit |
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