JPH02138919U - - Google Patents
Info
- Publication number
- JPH02138919U JPH02138919U JP4797489U JP4797489U JPH02138919U JP H02138919 U JPH02138919 U JP H02138919U JP 4797489 U JP4797489 U JP 4797489U JP 4797489 U JP4797489 U JP 4797489U JP H02138919 U JPH02138919 U JP H02138919U
- Authority
- JP
- Japan
- Prior art keywords
- audio signal
- circuit
- gain
- input terminal
- changeover switch
- 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
- 230000005236 sound signal Effects 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Control Of Amplification And Gain Control (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4797489U JPH02138919U (xx) | 1989-04-24 | 1989-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4797489U JPH02138919U (xx) | 1989-04-24 | 1989-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02138919U true JPH02138919U (xx) | 1990-11-20 |
Family
ID=31564378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4797489U Pending JPH02138919U (xx) | 1989-04-24 | 1989-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02138919U (xx) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60236509A (ja) * | 1984-05-10 | 1985-11-25 | Fujitsu Ltd | 差動可変増幅回路 |
| JPS6150324B2 (xx) * | 1980-12-26 | 1986-11-04 | Nissan Motor | |
| JPS62173809A (ja) * | 1986-01-28 | 1987-07-30 | Fujitsu Ltd | 増幅装置 |
-
1989
- 1989-04-24 JP JP4797489U patent/JPH02138919U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6150324B2 (xx) * | 1980-12-26 | 1986-11-04 | Nissan Motor | |
| JPS60236509A (ja) * | 1984-05-10 | 1985-11-25 | Fujitsu Ltd | 差動可変増幅回路 |
| JPS62173809A (ja) * | 1986-01-28 | 1987-07-30 | Fujitsu Ltd | 増幅装置 |