GB1207073A - Improvements in or relating to tone-control circuit arrangements - Google Patents

Improvements in or relating to tone-control circuit arrangements

Info

Publication number
GB1207073A
GB1207073A GB03232/69A GB1323269A GB1207073A GB 1207073 A GB1207073 A GB 1207073A GB 03232/69 A GB03232/69 A GB 03232/69A GB 1323269 A GB1323269 A GB 1323269A GB 1207073 A GB1207073 A GB 1207073A
Authority
GB
United Kingdom
Prior art keywords
series
tone
potentiometer
march
capacitor
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
GB03232/69A
Inventor
Werner Koenigh
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.)
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig 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 Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH filed Critical Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Publication of GB1207073A publication Critical patent/GB1207073A/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
    • H03G5/025—Equalizers; Volume or gain control in limited frequency bands

Landscapes

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

Abstract

1,207,073. Tone control circuits. GRUNDIG E.M.V. ELEKTRO - MECHANISCHE VERSUCHSANSTALT INH MAX GRUNDIG. 13 March, 1969 [13 March, 1968], No. 13232/69. Heading H3W. A tone control arrangement comprises two resistors 3, 4 connected in series across input terminals 1, 2 and with their common point 5 connected to the output terminal 5. Also connected across input terminals 1, 2 is the series combination of capacitor 6, inductor 7, the resistance element of a potentiometer 9, and capacitor 13. The slider of the potentiometer 9 is connected via inductor 8 to the output terminal 5. The inductors 7, 8 are preferably wound on the same core. The arrangement provides for increase or decrease of the response over a range of frequencies (Fig. 2, not shown), and the second series network may be shunted by further similar networks controlling the response over further frequency bands.
GB03232/69A 1968-03-13 1969-03-13 Improvements in or relating to tone-control circuit arrangements Expired GB1207073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1290595 1968-03-13

Publications (1)

Publication Number Publication Date
GB1207073A true GB1207073A (en) 1970-09-30

Family

ID=5662875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03232/69A Expired GB1207073A (en) 1968-03-13 1969-03-13 Improvements in or relating to tone-control circuit arrangements

Country Status (2)

Country Link
US (1) US3571764A (en)
GB (1) GB1207073A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483015A (en) * 1982-09-29 1984-11-13 John Strohbeen Compensation network for loudspeakers
US6737877B1 (en) * 2002-08-30 2004-05-18 Cypress Semiconductor Corp. Method and circuit for reading a potentiometer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1042025B (en) * 1952-03-12 1958-10-30 Telefunken Gmbh Device for tone control
AT287816B (en) * 1967-02-27 1971-02-10 Akg Akustische Kino Geraete Microphone with adjustable frequency response
US3460071A (en) * 1967-09-13 1969-08-05 Zenith Radio Corp Variable-turnover-frequency bass tone control

Also Published As

Publication number Publication date
US3571764A (en) 1971-03-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees