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JPH0390510U - - Google Patents

Info

Publication number
JPH0390510U
JPH0390510U JP15307489U JP15307489U JPH0390510U JP H0390510 U JPH0390510 U JP H0390510U JP 15307489 U JP15307489 U JP 15307489U JP 15307489 U JP15307489 U JP 15307489U JP H0390510 U JPH0390510 U JP H0390510U
Authority
JP
Japan
Prior art keywords
power amplifier
amplifier circuit
headphone
speaker
headphone jack
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
Application number
JP15307489U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP15307489U priority Critical patent/JPH0390510U/ja
Publication of JPH0390510U publication Critical patent/JPH0390510U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)

Description

【図面の簡単な説明】
図は本考案の一実施例による音響装置を示す回
路図である。 11a,11b……音響信号源、12……ボリ
ユーム、13……パワーアンプ回路、14a,1
4b……スピーカ結線、15a,15b……スピ
ーカ、16……ヘツドホンジヤツク、18a,1
8b……出力スイツチ、20……プラグ検出スイ
ツチ、22……コンデンサ、25……ボリユーム
制御回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. ヘツドホンジヤツクと、音響信号をスピーカへ
    出力するためのパワーアンプ回路と、該ヘツドホ
    ンジヤツクにヘツドホンプラグが挿入された際に
    、前記パワーアンプ回路と前記スピーカとの接続
    をしや断する出力スイツチと、前記ヘツドホンジ
    ヤツクから前記ヘツドホンプラグが抜かれた際に
    、前記パワーアンプ回路からの出力を低下させる
    音量制御回路とを備えたことを特徴とする音響装
    置。
JP15307489U 1989-12-28 1989-12-28 Pending JPH0390510U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15307489U JPH0390510U (ja) 1989-12-28 1989-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15307489U JPH0390510U (ja) 1989-12-28 1989-12-28

Publications (1)

Publication Number Publication Date
JPH0390510U true JPH0390510U (ja) 1991-09-13

Family

ID=31699300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15307489U Pending JPH0390510U (ja) 1989-12-28 1989-12-28

Country Status (1)

Country Link
JP (1) JPH0390510U (ja)

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