JPH0327123B2 - - Google Patents

Info

Publication number
JPH0327123B2
JPH0327123B2 JP60046278A JP4627885A JPH0327123B2 JP H0327123 B2 JPH0327123 B2 JP H0327123B2 JP 60046278 A JP60046278 A JP 60046278A JP 4627885 A JP4627885 A JP 4627885A JP H0327123 B2 JPH0327123 B2 JP H0327123B2
Authority
JP
Japan
Prior art keywords
current
audio signal
transformer
electromagnetic
voltage
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 - Lifetime
Application number
JP60046278A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61205011A (ja
Inventor
Noboru Tominari
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.)
Dainaa Bekutaa Kk
Original Assignee
Dainaa Bekutaa Kk
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 Dainaa Bekutaa Kk filed Critical Dainaa Bekutaa Kk
Priority to JP60046278A priority Critical patent/JPS61205011A/ja
Priority to US06/734,395 priority patent/US4644517A/en
Publication of JPS61205011A publication Critical patent/JPS61205011A/ja
Publication of JPH0327123B2 publication Critical patent/JPH0327123B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
JP60046278A 1985-03-08 1985-03-08 音声信号増幅回路 Granted JPS61205011A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP60046278A JPS61205011A (ja) 1985-03-08 1985-03-08 音声信号増幅回路
US06/734,395 US4644517A (en) 1985-03-08 1985-05-14 Audio signal amplifier for an electromagnetic phono cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60046278A JPS61205011A (ja) 1985-03-08 1985-03-08 音声信号増幅回路

Publications (2)

Publication Number Publication Date
JPS61205011A JPS61205011A (ja) 1986-09-11
JPH0327123B2 true JPH0327123B2 (en, 2012) 1991-04-15

Family

ID=12742761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60046278A Granted JPS61205011A (ja) 1985-03-08 1985-03-08 音声信号増幅回路

Country Status (2)

Country Link
US (1) US4644517A (en, 2012)
JP (1) JPS61205011A (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8976981B2 (en) * 2010-10-07 2015-03-10 Blackberry Limited Circuit, system and method for isolating a transducer from an amplifier in an electronic device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4470020A (en) * 1982-05-06 1984-09-04 Mohr Daniel R Virtual ground preamplifier for magnetic phono cartridge

Also Published As

Publication number Publication date
JPS61205011A (ja) 1986-09-11
US4644517A (en) 1987-02-17

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