JPS61136307U - - Google Patents
Info
- Publication number
- JPS61136307U JPS61136307U JP1850885U JP1850885U JPS61136307U JP S61136307 U JPS61136307 U JP S61136307U JP 1850885 U JP1850885 U JP 1850885U JP 1850885 U JP1850885 U JP 1850885U JP S61136307 U JPS61136307 U JP S61136307U
- Authority
- JP
- Japan
- Prior art keywords
- mixing
- right channels
- microphone
- external microphone
- tape recorder
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来例を示す回路図である。
１３，１４…外部マイクジヤツク、１９…増幅
用トンジスター、２９…制御回路、３０…連動ス
イツチ。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram showing a conventional example. 13, 14...External microphone jack, 19...Tonister for amplification, 29...Control circuit, 30...Interlocking switch.
Claims (1)
挿入接続された外部マイクにより、左右チヤンネ
ルへのモノラルマイクミキシングが行なえるよう
にしたテープレコーダーであつて、前記一方の外
部マイクジヤツクからの入力信号を増幅した後夫
々左右チヤンネルに供給するようその出力端側が
夫々抵抗を介して左右チヤンネル側に接続された
ミキシング用アンプと、モノラルマイクミキシン
グを行なわない時には前記ミキシング用アンプの
出力インピーダンスを強制的に低下させる制御回
路とより成る事を特徴とするテープレコーダーの
マイクミキシング回路。 This tape recorder is capable of performing monaural microphone mixing to the left and right channels using an external microphone inserted and connected to an external microphone jack on one of the left and right channels, and after amplifying the input signal from the one external microphone jack, A mixing amplifier whose output end side is connected to the left and right channels via resistors, respectively, so as to supply signals to the left and right channels, and a control circuit for forcibly lowering the output impedance of the mixing amplifier when monaural microphone mixing is not performed. A tape recorder microphone mixing circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1850885U JPS61136307U (en) | 1985-02-13 | 1985-02-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1850885U JPS61136307U (en) | 1985-02-13 | 1985-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61136307U true JPS61136307U (en) | 1986-08-25 |
Family
ID=30507214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1850885U Pending JPS61136307U (en) | 1985-02-13 | 1985-02-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61136307U (en) |
-
1985
- 1985-02-13 JP JP1850885U patent/JPS61136307U/ja active Pending
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