IL28928A - Audio amplifier tone control system using field effect transistor - Google Patents

Audio amplifier tone control system using field effect transistor

Info

Publication number
IL28928A
IL28928A IL28928A IL2892867A IL28928A IL 28928 A IL28928 A IL 28928A IL 28928 A IL28928 A IL 28928A IL 2892867 A IL2892867 A IL 2892867A IL 28928 A IL28928 A IL 28928A
Authority
IL
Israel
Prior art keywords
control system
field effect
effect transistor
audio amplifier
tone control
Prior art date
Application number
IL28928A
Other languages
English (en)
Original Assignee
Scott H 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 Scott H Inc filed Critical Scott H Inc
Publication of IL28928A publication Critical patent/IL28928A/xx

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)
IL28928A 1967-06-07 1967-11-13 Audio amplifier tone control system using field effect transistor IL28928A (en)

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
IL28928A true IL28928A (en) 1970-12-24

Family

ID=24583603

Family Applications (1)

Application Number Title Priority Date Filing Date
IL28928A IL28928A (en) 1967-06-07 1967-11-13 Audio amplifier tone control system using field effect transistor

Country Status (9)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0241934Y2 (it) * 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
NL6801351A (it) 1968-12-09
LU54946A1 (it) 1968-02-16
CH484558A (fr) 1970-01-15
BE706884A (it) 1968-04-01
ES347473A1 (es) 1969-02-01
US3419811A (en) 1968-12-31
DE1562085A1 (de) 1970-03-05
GB1165930A (en) 1969-10-01

Similar Documents

Publication Publication Date Title
IL28928A (en) Audio amplifier tone control system using field effect transistor
AU415406B2 (en) Audio amplifier tone control system
AU2991367A (en) Audio amplifier tone control system
CA736606A (en) Transistor amplifier control
CA730802A (en) Basic transistor control amplifier
CA736088A (en) Transistor amplifier
CA730812A (en) Transistor amplifier
CA739090A (en) Transistor amplifier
CA730811A (en) Transistor amplifier
AU415723B2 (en) Transistor amplifier
AU426671B2 (en) Transistor amplifier
CA664388A (en) Reflex transistor amplifier
CA685837A (en) Transistor amplifier
AU417898B2 (en) Field effect transistor amplifier circuits
CA742346A (en) Transistor amplifiers
CA746151A (en) Transistor amplifiers
CA739603A (en) Transistor amplifiers
CA707891A (en) Transistor amplifier
AU406849B2 (en) Transistor amplifier
AU411313B2 (en) Transistor amplifier
CA706020A (en) Transistor amplifier
CA657503A (en) Transistor amplifier
CA657532A (en) Transistor amplifier
CA668277A (en) Transistor amplifier
CA670719A (en) Transistor amplifier