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
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.
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)
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 |
-
1965
- 1965-07-30 DE DE1965T0029106 patent/DE1245428B/en active Pending
-
1966
- 1966-07-19 GB GB3236166A patent/GB1156728A/en not_active Expired
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 |