JPS6118619U - Frequency characteristic adjustment circuit - Google Patents
Frequency characteristic adjustment circuitInfo
- Publication number
- JPS6118619U JPS6118619U JP10229484U JP10229484U JPS6118619U JP S6118619 U JPS6118619 U JP S6118619U JP 10229484 U JP10229484 U JP 10229484U JP 10229484 U JP10229484 U JP 10229484U JP S6118619 U JPS6118619 U JP S6118619U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- adjustment circuit
- frequency characteristic
- variable resistor
- characteristic adjustment
- 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.)
- Pending
Links
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Adjustable Resistors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、この考案の一実施例を示す回路図である。
第２図は、従来の周波数特性調整回路を示す回路図であ
る。
第３図は、第２図ｂにおける可変抵抗器ＶＲＩＱの構造
を示す図である。
第４図は、第３図の可変抵抗器ＶＲＩＱの特性図である
。
第５図は、笹２図ｂおよび第１図における可変抵抗器Ｖ
Ｒｌ３の構造を示す図である。
第６図は、第１図における可変抵抗器ＶＲｌ４の構造を
示す図である。
１０・・・入力端子、１１・・・オペアンプ、１２・・
・低音調整回路、１３・・・高音調整回路、１４・・・
出力端・子、ＶＲＩ，ＶＲ２，ＶＲＩＯ，ＶＲ１１，Ｖ
Ｒ１２ｔＶＲＩ３，ＶＲＩ４・・・可変抵抗器、ＶＲｉ
ｌａ，ＶＲ１２ｂ，ＶＲＩ３ｃ，ＶＲ１４ｃ・・・導体
、ＶＲＩｌｂ，ＶＲＩ，２ａ，ＶＲＩ３ａ，ＶＲ１３ｂ
，ＶＲｊ４ａ，ＶＲ１４ｂ・抵塾体、２０，２１，２３
，２５・・・摺動子、２２・・・調整用つまみ、２４・
・・高音調整用つまみ。FIG. 1 is a circuit diagram showing an embodiment of this invention. FIG. 2 is a circuit diagram showing a conventional frequency characteristic adjustment circuit. FIG. 3 is a diagram showing the structure of variable resistor VRIQ in FIG. 2b. FIG. 4 is a characteristic diagram of the variable resistor VRIQ of FIG. 3. Figure 5 shows the variable resistor V in Figure 2b and Figure 1.
FIG. 3 is a diagram showing the structure of Rl3. FIG. 6 is a diagram showing the structure of variable resistor VRl4 in FIG. 1. 10... Input terminal, 11... Operational amplifier, 12...
・Bass adjustment circuit, 13...Treble adjustment circuit, 14...
Output terminal/child, VRI, VR2, VRIO, VR11, V
R12tVRI3, VRI4...variable resistor, VRi
la, VR12b, VRI3c, VR14c...Conductor, VRIlb, VRI, 2a, VRI3a, VR13b
, VRj4a, VR14b・Resistive body, 20, 21, 23
, 25...Slider, 22...Adjustment knob, 24...
...Treble adjustment knob.
Claims (1)
音調整回路と、コンデンサに可変抵抗器を直列接続した
回路を有する高音調整回路とを帰還回路に具えたＮＦ形
周波数特性調整回路において、前記低音調整回路および
前記高音調整回路の可変薇抗器が平坦特性指示位置でそ
れそれ開放状態となるようにしたことを特徴とする周波
数特性調整回路。In the NF frequency characteristic adjustment circuit, the feedback circuit includes a bass adjustment circuit having a circuit in which a variable resistor is connected in parallel to a capacitor, and a treble adjustment circuit having a circuit in which a variable resistor is connected in series to a capacitor in a feedback circuit. A frequency characteristic adjustment circuit characterized in that the circuit and the variable resistor of the treble tone adjustment circuit are each in an open state at a flat characteristic indicating position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10229484U JPS6118619U (en) | 1984-07-05 | 1984-07-05 | Frequency characteristic adjustment circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10229484U JPS6118619U (en) | 1984-07-05 | 1984-07-05 | Frequency characteristic adjustment circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6118619U true JPS6118619U (en) | 1986-02-03 |
Family
ID=30661695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10229484U Pending JPS6118619U (en) | 1984-07-05 | 1984-07-05 | Frequency characteristic adjustment circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6118619U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS497902B1 (en) * | 1968-04-19 | 1974-02-22 |
-
1984
- 1984-07-05 JP JP10229484U patent/JPS6118619U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS497902B1 (en) * | 1968-04-19 | 1974-02-22 |
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