JPS5611607A - High frequency bias circuit for multichannel magnetic tape recorder - Google Patents

High frequency bias circuit for multichannel magnetic tape recorder

Info

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
Application number
JP8567379A
Other languages
Japanese (ja)
Inventor
Masateru Nakano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8567379A priority Critical patent/JPS5611607A/en
Publication of JPS5611607A publication Critical patent/JPS5611607A/en
Pending legal-status Critical Current

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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
JP8567379A 1979-07-03 1979-07-03 High frequency bias circuit for multichannel magnetic tape recorder Pending JPS5611607A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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