JPS567212A - Recording and reproducing device - Google Patents

Recording and reproducing device

Info

Publication number
JPS567212A
JPS567212A JP8367979A JP8367979A JPS567212A JP S567212 A JPS567212 A JP S567212A JP 8367979 A JP8367979 A JP 8367979A JP 8367979 A JP8367979 A JP 8367979A JP S567212 A JPS567212 A JP S567212A
Authority
JP
Japan
Prior art keywords
switch circuit
recording
turned
voltage
terminal
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
JP8367979A
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 JP8367979A priority Critical patent/JPS567212A/en
Publication of JPS567212A publication Critical patent/JPS567212A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate adjustment, by providing the first switch circuit between the output terminal of a recording amplifier and the earth point, and also providing the second switch circuit at the input point of a reproducing amplifier and further the third switch circuit which operates a high frequency oscillator for bias only for recording.
CONSTITUTION: For reproducing, the H voltage is supplied to control terminal 6a, and the first switch circuit 6 is turned on, and the output voltage of inverter 12 becomes the L voltage, and therefore, the second and the third switch circuits 10 and 11 are turned off, and the reproducing operation is performed by magnetic head 2. Meanwhile, for recording, the L voltage is supplied to control terminal 6a, and the first switch circuit 6 is turned off, and high frequency oscillator 5 for bias oscillator 5 for bias oscillates, and the second switch circuit 10 is turned on. The output of recording amplifier 4 is connected to the second terminal of magnetic head 2, and the first terminal is grounded through the second switch circuit 10, and the recording operation is performed.
COPYRIGHT: (C)1981,JPO&Japio
JP8367979A 1979-06-29 1979-06-29 Recording and reproducing device Pending JPS567212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8367979A JPS567212A (en) 1979-06-29 1979-06-29 Recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8367979A JPS567212A (en) 1979-06-29 1979-06-29 Recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS567212A true JPS567212A (en) 1981-01-24

Family

ID=13809158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8367979A Pending JPS567212A (en) 1979-06-29 1979-06-29 Recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS567212A (en)

Similar Documents

Publication Publication Date Title
JPS54128382A (en) Tuning signal intensity detecting circuit
JPS567212A (en) Recording and reproducing device
JPS5255361A (en) Variable frequency oscillator
JPS5227342A (en) Signal generator
JPS5597875A (en) Transistor direct current power supply for welding
JPS55114006A (en) Synchronous type crystal oscillator
JPS5525874A (en) Magnetic recording reproducer
JPS538847A (en) High frequency heater
JPS55121511A (en) Variation system for output voltage of power unit
JPS51140513A (en) Color burst signal extracting circuit
JPS644190A (en) Chrominance signal processor for magnetic recording and reproducing device
JPS5715578A (en) Carrier wave pickup circut
JPS5562511A (en) Bias oscillator circuit of tape recorder
JPS5467409A (en) Electronic switch for tape pecorder
JPS55607A (en) Frequency discriminator
JPS5746508A (en) Muting amplifier
JPS57123721A (en) Oscillator
JPS54130110A (en) Magnetic recording circuit
JPS55134757A (en) Engine ignition apparatus
JPS5331123A (en) Voltage constant driving circuit
JPS55122211A (en) Bias adjustment unit of magnetic recorder
JPS52113664A (en) Amplifier circuit
JPS51141615A (en) Automatic tuning apparatus for electronic musical instrument
JPS5236019A (en) Sound source device of electronic musical instrument
JPS5577013A (en) Recording circuit in magnetic recorder