JPS5859294U - Automatic switching circuit between internal speaker and external speaker - Google Patents
Automatic switching circuit between internal speaker and external speakerInfo
- Publication number
- JPS5859294U JPS5859294U JP15313081U JP15313081U JPS5859294U JP S5859294 U JPS5859294 U JP S5859294U JP 15313081 U JP15313081 U JP 15313081U JP 15313081 U JP15313081 U JP 15313081U JP S5859294 U JPS5859294 U JP S5859294U
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- switching circuit
- automatic switching
- internal
- external
- 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
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
ζ 図は本考案適用部の構成を示す。図において、
１ １・・・・・・出力ライン、２・・曲内部スピー
カ、３・・・沿 ・・・双方向トランジスタ、４・・
・・・・抵抗、５・・・・・・バイ拮 アス電圧、６
・・・・・・外部スピーカ、７・・・・・・ジャンノ＜
ζ 線。ζ Diagram shows the configuration of the application section of the present invention. In the figure,
1 1...output line, 2...internal speaker, 3...along...bidirectional transistor, 4...
...Resistance, 5...Bias voltage, 6
...External speaker, 7...Janno<
ζ line.
Claims (1)
ジスタのコレクタとエミッタを接ぎ、罠トランジスタの
ベースには抵抗を通してパイアン電圧を加え、外付スピ
ーカはコネクタの接点を７して一方の端子は機器の出力
ラインに、他方の若干は帰線回路に接続すると共に、該
コネクタの倉の接点を通して内部スピーカに直列のトラ
ンジンタのベースとエミッタ間をショートするようにし
た、内部スピーカと外付スピーカの自動切換回路ブ
の構成。Connect the collector and emitter of a bidirectional transistor between the return line terminal of the internal speaker and the return line circuit, apply the Piant voltage to the base of the trap transistor through a resistor, and connect the external speaker to one terminal by connecting the contact point of the connector to 7. is connected to the output line of the device, and the other part is connected to the return circuit, and the internal speaker and external speaker are shorted through the contacts in the connector's enclosure between the base and emitter of the transistor in series with the internal speaker. Automatic switching circuit block
composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15313081U JPS5859294U (en) | 1981-10-15 | 1981-10-15 | Automatic switching circuit between internal speaker and external speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15313081U JPS5859294U (en) | 1981-10-15 | 1981-10-15 | Automatic switching circuit between internal speaker and external speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5859294U true JPS5859294U (en) | 1983-04-21 |
| JPS636955Y2 JPS636955Y2 (en) | 1988-02-27 |
Family
ID=29945759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15313081U Granted JPS5859294U (en) | 1981-10-15 | 1981-10-15 | Automatic switching circuit between internal speaker and external speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5859294U (en) |
-
1981
- 1981-10-15 JP JP15313081U patent/JPS5859294U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS636955Y2 (en) | 1988-02-27 |
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