CH417992A - Oscillateur-amplificateur pour enregistrement magnétique - Google Patents

Oscillateur-amplificateur pour enregistrement magnétique

Info

Publication number
CH417992A
CH417992A CH1131163A CH1131163A CH417992A CH 417992 A CH417992 A CH 417992A CH 1131163 A CH1131163 A CH 1131163A CH 1131163 A CH1131163 A CH 1131163A CH 417992 A CH417992 A CH 417992A
Authority
CH
Switzerland
Prior art keywords
oscillator
amplifier
magnetic recording
recording
magnetic
Prior art date
Application number
CH1131163A
Other languages
English (en)
Inventor
Peter Skov Erling
Original Assignee
Ampex
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 Ampex filed Critical Ampex
Publication of CH417992A publication Critical patent/CH417992A/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/66—Amplifiers simultaneously generating oscillations of one frequency and amplifying signals of another frequency
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/027—Analogue recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/027—Analogue recording
    • G11B5/03—Biasing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
CH1131163A 1962-09-24 1963-09-13 Oscillateur-amplificateur pour enregistrement magnétique CH417992A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US225633A US3324250A (en) 1962-09-24 1962-09-24 Oscillator-amplifier circuit utilizing recording amplifier for high frequency recording bias supply

Publications (1)

Publication Number Publication Date
CH417992A true CH417992A (fr) 1966-07-31

Family

ID=22845618

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1131163A CH417992A (fr) 1962-09-24 1963-09-13 Oscillateur-amplificateur pour enregistrement magnétique

Country Status (5)

Country Link
US (1) US3324250A (fr)
CH (1) CH417992A (fr)
DE (1) DE1449317B2 (fr)
GB (1) GB991506A (fr)
NL (1) NL298172A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503007A (en) * 1967-09-20 1970-03-24 Buchungsmachinenwerk Karl Marx Controllable oscillator
US3838452A (en) * 1972-12-07 1974-09-24 Honeywell Inc Recording amplifier for bias-type magnetic recording
US4081845A (en) * 1976-06-29 1978-03-28 Honeywell Inc. Magnetic recording with bias and data mixing circuit
JPS5935086B2 (ja) * 1978-12-06 1984-08-27 ヤマハ株式会社 磁気記録機における記録回路
EP0256335B1 (fr) * 1986-08-12 1991-03-27 Studer Revox Ag Enregistrement de signaux audio

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427491A (en) * 1940-06-17 1947-09-16 Emi Ltd Thermionic valve oscillator with positive and negative feedback
US2730577A (en) * 1954-03-09 1956-01-10 Winters Arthur Frequency selective amplifier circuit
US3133160A (en) * 1960-02-25 1964-05-12 Code A Phone Electronics Inc Combination bias oscillator, mixer and recording amplifier

Also Published As

Publication number Publication date
US3324250A (en) 1967-06-06
DE1449317A1 (de) 1969-03-27
DE1449317B2 (de) 1970-10-08
GB991506A (en) 1965-05-12
NL298172A (fr)

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