GB1156728A - Improvements in or relating to Tone Control Circuit Arrangements. - Google Patents

Improvements in or relating to Tone Control Circuit Arrangements.

Info

Publication number
GB1156728A
GB1156728A GB3236166A GB3236166A GB1156728A GB 1156728 A GB1156728 A GB 1156728A GB 3236166 A GB3236166 A GB 3236166A GB 3236166 A GB3236166 A GB 3236166A GB 1156728 A GB1156728 A GB 1156728A
Authority
GB
United Kingdom
Prior art keywords
control circuit
tone control
relating
circuit arrangements
frequency
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
GB3236166A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1156728A publication Critical patent/GB1156728A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

1,156,728. Transistor amplifying circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 19 July, 1966 [30 July, 1965], No. 32361/66. Heading H3T. In a tone control circuit including two frequency dependent potentiometers 1, 2,3, 4, 5 and 6, 7, 8 for selectively varying the low and high frequency response respectively, frequency dependent negative feedback 12, 13, 14 is applied to an amplifier stage 11 compensates for frequency sensitivity to give a flat frequency response when the controls are in their central position.
GB3236166A 1965-07-30 1966-07-19 Improvements in or relating to Tone Control Circuit Arrangements. Expired GB1156728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965T0029106 DE1245428B (en) 1965-07-30 1965-07-30 Low frequency amplifier with tone color adjusters to selectively increase or decrease the amplitude of the low or high tone frequencies

Publications (1)

Publication Number Publication Date
GB1156728A true GB1156728A (en) 1969-07-02

Family

ID=7554653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3236166A Expired GB1156728A (en) 1965-07-30 1966-07-19 Improvements in or relating to Tone Control Circuit Arrangements.

Country Status (2)

Country Link
DE (1) DE1245428B (en)
GB (1) GB1156728A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290595B (en) * 1968-03-13 1969-03-13 Grundig Emv Tone control for the symmetrical increase or decrease of selected areas in a tone-frequency spectrum

Also Published As

Publication number Publication date
DE1245428B (en) 1967-07-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees