ES347473A1 - Un sistema de amplificacion. - Google Patents

Un sistema de amplificacion.

Info

Publication number
ES347473A1
ES347473A1 ES347473A ES347473A ES347473A1 ES 347473 A1 ES347473 A1 ES 347473A1 ES 347473 A ES347473 A ES 347473A ES 347473 A ES347473 A ES 347473A ES 347473 A1 ES347473 A1 ES 347473A1
Authority
ES
Spain
Prior art keywords
field
gate electrode
network
feedback
transistor
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
Application number
ES347473A
Other languages
English (en)
Spanish (es)
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.)
H H SCOTT Inc
Original Assignee
H H SCOTT Inc
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 H H SCOTT Inc filed Critical H H SCOTT Inc
Publication of ES347473A1 publication Critical patent/ES347473A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • H03F3/1855—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices with junction-FET devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H03G5/12—Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
ES347473A 1967-06-07 1967-11-22 Un sistema de amplificacion. Expired ES347473A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US644137A US3419811A (en) 1967-06-07 1967-06-07 Audio amplifier tone control system

Publications (1)

Publication Number Publication Date
ES347473A1 true ES347473A1 (es) 1969-02-01

Family

ID=24583603

Family Applications (1)

Application Number Title Priority Date Filing Date
ES347473A Expired ES347473A1 (es) 1967-06-07 1967-11-22 Un sistema de amplificacion.

Country Status (9)

Country Link
US (1) US3419811A (OSRAM)
BE (1) BE706884A (OSRAM)
CH (1) CH484558A (OSRAM)
DE (1) DE1562085A1 (OSRAM)
ES (1) ES347473A1 (OSRAM)
GB (1) GB1165930A (OSRAM)
IL (1) IL28928A (OSRAM)
LU (1) LU54946A1 (OSRAM)
NL (1) NL6801351A (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241934Y2 (OSRAM) * 1984-10-15 1990-11-08
GB2198303A (en) * 1986-12-05 1988-06-08 Philips Electronic Associated Amplifier circuit arrangement
US20040036496A1 (en) * 2002-08-20 2004-02-26 Daniel Liu Electronic load simulation circuit with serially connected impedance element

Also Published As

Publication number Publication date
LU54946A1 (OSRAM) 1968-02-16
CH484558A (fr) 1970-01-15
NL6801351A (OSRAM) 1968-12-09
DE1562085A1 (de) 1970-03-05
IL28928A (en) 1970-12-24
GB1165930A (en) 1969-10-01
BE706884A (OSRAM) 1968-04-01
US3419811A (en) 1968-12-31

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