JPS5872712U - Stereo recording input circuit - Google Patents
Stereo recording input circuitInfo
- Publication number
- JPS5872712U JPS5872712U JP16722281U JP16722281U JPS5872712U JP S5872712 U JPS5872712 U JP S5872712U JP 16722281 U JP16722281 U JP 16722281U JP 16722281 U JP16722281 U JP 16722281U JP S5872712 U JPS5872712 U JP S5872712U
- Authority
- JP
- Japan
- Prior art keywords
- input
- microphone
- stereo recording
- input circuit
- recording input
- 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
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
図は本考案の回路構成図である。
２．８・・・・・・増幅器、３．９・・・・・・外部マ
イク入力端子、４，１０・・・・・・補助入力端子、１
５・・・・・・内蔵マイク、１６．１７・・・・・・抵
抗、１９．２０・・・・・・スイッチ、２１・・・・・
・スイッチングトランジスタ。The figure is a circuit configuration diagram of the present invention. 2.8...Amplifier, 3.9...External microphone input terminal, 4,10...Auxiliary input terminal, 1
5... Built-in microphone, 16.17... Resistor, 19.20... Switch, 21...
・Switching transistor.
Claims (1)
び補助入力端子が接続されているステレオ録音入力回路
であって、単一の内蔵マイクを各増幅器の入力側にそれ
ぞれ抵抗を介して共通接続すると共に前記外部マイク入
力端子又は補助入力端子に外部マイク入力又は補助入力
が印加された際前記内蔵マイクの動作電源を遮断すると
同時に内蔵マイクの共通出力端を接地するべくスイッチ
ングトランジスタを導通ずるスイッチを設けてなるステ
レオ録音入力回路。This is a stereo recording input circuit in which an external microphone input terminal and an auxiliary input terminal are connected to the input side of the amplifier of each channel, and a single built-in microphone is commonly connected to the input side of each amplifier via a resistor. A switch is provided that turns on a switching transistor so as to cut off the operating power of the built-in microphone and simultaneously ground a common output terminal of the built-in microphone when an external microphone input or auxiliary input is applied to the external microphone input terminal or the auxiliary input terminal. A stereo recording input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16722281U JPS5872712U (en) | 1981-11-09 | 1981-11-09 | Stereo recording input circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16722281U JPS5872712U (en) | 1981-11-09 | 1981-11-09 | Stereo recording input circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5872712U true JPS5872712U (en) | 1983-05-17 |
Family
ID=29959326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16722281U Pending JPS5872712U (en) | 1981-11-09 | 1981-11-09 | Stereo recording input circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5872712U (en) |
-
1981
- 1981-11-09 JP JP16722281U patent/JPS5872712U/en active Pending
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