JPS61206382U - - Google Patents
Info
- Publication number
- JPS61206382U JPS61206382U JP8864185U JP8864185U JPS61206382U JP S61206382 U JPS61206382 U JP S61206382U JP 8864185 U JP8864185 U JP 8864185U JP 8864185 U JP8864185 U JP 8864185U JP S61206382 U JPS61206382 U JP S61206382U
- Authority
- JP
- Japan
- Prior art keywords
- transistors
- variable
- resistor
- variable resistor
- 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.)
- Granted
Links
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の色調調整回路を示す回路図である。
ＴＲ１…色信号増幅用トランジスタ、ＴＲ９，
ＴＲ１０…逆導電型のトランジスタ、ＶＲ２…色
調調整用可変抵抗器。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing a conventional color tone adjustment circuit. TR1 ...transistor for color signal amplification, TR9 ,
TR 10 ...Reverse conductivity type transistor, VR 2 ...Variable resistor for color tone adjustment.
Claims (1)
電型の二つのトランジスタのコレクタ・エミツタ
間を直列接続し、この両トランジスタの接続中点
を色信号増幅用トランジスタのベースに接続する
と共に、前記両トランジスタのベースに対して可
変抵抗器を含む可変バイアス回路を接続し、上記
可変抵抗器の調整に応じて前記両トランジスタの
各々を選択的に可変インピーダンス動作させるこ
とにより、上記増幅用トランジスタのベース電位
を可変制御するようにしてなる色調整回路。 The collectors and emitters of two transistors of opposite conductivity types are connected in series between the power source and the reference potential point via a resistor, and the midpoint of the connection between these two transistors is connected to the base of the color signal amplification transistor, and the A variable bias circuit including a variable resistor is connected to the bases of both transistors, and each of the transistors is selectively operated at a variable impedance according to the adjustment of the variable resistor. A color adjustment circuit that variably controls the potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8864185U JPH0339989Y2 (en) | 1985-06-12 | 1985-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8864185U JPH0339989Y2 (en) | 1985-06-12 | 1985-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61206382U true JPS61206382U (en) | 1986-12-26 |
| JPH0339989Y2 JPH0339989Y2 (en) | 1991-08-22 |
Family
ID=30641971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8864185U Expired JPH0339989Y2 (en) | 1985-06-12 | 1985-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339989Y2 (en) |
-
1985
- 1985-06-12 JP JP8864185U patent/JPH0339989Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0339989Y2 (en) | 1991-08-22 |