GB1304774A - - Google Patents

Info

Publication number
GB1304774A
GB1304774A GB1304774DA GB1304774A GB 1304774 A GB1304774 A GB 1304774A GB 1304774D A GB1304774D A GB 1304774DA GB 1304774 A GB1304774 A GB 1304774A
Authority
GB
United Kingdom
Prior art keywords
series
control circuit
frequency range
audio frequency
output
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
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 filed Critical
Publication of GB1304774A publication Critical patent/GB1304774A/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

Landscapes

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

Abstract

1304774 Tone control W W PALMER 24 July 1970 36138/70 Heading H3W A tone control circuit comprises a low audio frequency range control circuit 5, a medium audio frequency range control circuit 6 and a high audio frequency range control circuit 7, having means capable of being adjusted such that when an input signal is applied to each control circuit no output is obtained. The arrangement may be proceeded by a volume control potentiometer 1 and D.C. blocking capacitor 2. The low audio frequency range control circuit 6 comprises a potentiometer 53 in series with series-connected resistors 51, 52 and resistor 54 is connected in series between its output and the output terminal 9. The medium audio frequency range control circuit 6 comprises a potentiometer 63 in series with seriesconnected resistors 61, 62, a resistor 64 in series with capacitor 65 being connected in series between its output and the output terminal 9. The high audio frequency range control circuit 7 comprises a potentiometer 75, a capacitor 75 being connected in series with its output and output terminal 9. A resistor 10 is connected between the combined outputs from circuits 5, 6 and output terminal 9. The arrangement of series resistors 51, 52 and 61, 62 is used to reduce the effect of shunting stray capacities.
GB1304774D 1970-07-24 1970-07-24 Expired GB1304774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3613870 1970-07-24

Publications (1)

Publication Number Publication Date
GB1304774A true GB1304774A (en) 1973-01-31

Family

ID=10385348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304774D Expired GB1304774A (en) 1970-07-24 1970-07-24

Country Status (1)

Country Link
GB (1) GB1304774A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494525A1 (en) * 1980-11-14 1982-05-21 Thomson Csf TONE CONTROL CIRCUIT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494525A1 (en) * 1980-11-14 1982-05-21 Thomson Csf TONE CONTROL CIRCUIT
EP0052544A1 (en) * 1980-11-14 1982-05-26 Thomson-Csf Tone control circuit

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee