JPS5451444A - Level adjustment circuit - Google Patents
Level adjustment circuitInfo
- Publication number
- JPS5451444A JPS5451444A JP11753477A JP11753477A JPS5451444A JP S5451444 A JPS5451444 A JP S5451444A JP 11753477 A JP11753477 A JP 11753477A JP 11753477 A JP11753477 A JP 11753477A JP S5451444 A JPS5451444 A JP S5451444A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- slider
- resistor
- output voltage
- branch 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/24—Frequency- independent attenuators
Landscapes
- Attenuators (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
PURPOSE:To improve the branch output voltage load effect surely with a simple circuit constitution, by connecting the resistor having approximately equal value as the input resistance of the circuit connected on and after the variable resistor between one end of the variable resistor and the slider. CONSTITUTION:The main line L is branched after the input terminal IN and is connected to the recording terminal REC and the MAX terminal 1 of the variable resistor RV. The MIN terminal 3 of the resistor RV is grounded and the slider 2 is connected to the number of order circuit NC having the input resistance Rc, and the resistor R having about the same resistance value Rc is connected between the terminal 1 and the slider 2. With this constituion, the branch output voltage eREC is made equal for the connection of the slider 2 to the MAX terminal 1 and to the MIN terminal 3. Accordingly, the variation of the input resistance RIN due to the position of the slider 2 can not be restricted possibly, then the effect of the branch output voltage load can surely be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11753477A JPS6034850B2 (en) | 1977-09-30 | 1977-09-30 | Level adjustment circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11753477A JPS6034850B2 (en) | 1977-09-30 | 1977-09-30 | Level adjustment circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5451444A true JPS5451444A (en) | 1979-04-23 |
JPS6034850B2 JPS6034850B2 (en) | 1985-08-10 |
Family
ID=14714163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11753477A Expired JPS6034850B2 (en) | 1977-09-30 | 1977-09-30 | Level adjustment circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6034850B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5871225U (en) * | 1981-11-05 | 1983-05-14 | 八木アンテナ株式会社 | Variable attenuator control circuit |
-
1977
- 1977-09-30 JP JP11753477A patent/JPS6034850B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5871225U (en) * | 1981-11-05 | 1983-05-14 | 八木アンテナ株式会社 | Variable attenuator control circuit |
JPS6238347Y2 (en) * | 1981-11-05 | 1987-09-30 |
Also Published As
Publication number | Publication date |
---|---|
JPS6034850B2 (en) | 1985-08-10 |
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