JPS63152397U - - Google Patents

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Publication number
JPS63152397U
JPS63152397U JP4425487U JP4425487U JPS63152397U JP S63152397 U JPS63152397 U JP S63152397U JP 4425487 U JP4425487 U JP 4425487U JP 4425487 U JP4425487 U JP 4425487U JP S63152397 U JPS63152397 U JP S63152397U
Authority
JP
Japan
Prior art keywords
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speakers
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output
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
JP4425487U
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 JP4425487U priority Critical patent/JPS63152397U/ja
Publication of JPS63152397U publication Critical patent/JPS63152397U/ja
Pending legal-status Critical Current

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  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例の概略構成ブロツク
図、第2図は本考案において、増幅段の出力段の
配線図、第3図は、従来例を示す図である。 10……増幅部、11……可変抵抗(入力側)
、12,14……連動スイツチ、15,16……
連動スイツチ、5……(内部)スピーカ、6……
(外部)スピーカ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 出力負荷として、許容最大入力の異なるスピー
    カを切換えるスイツチと、出力回路の電源と直列
    になる外部インピーダンスを、前記スイツチに連
    動して切換え、その値を異ならせるスイツチとを
    備えたことを特徴とする音声出力増幅器。
JP4425487U 1987-03-27 1987-03-27 Pending JPS63152397U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4425487U JPS63152397U (ja) 1987-03-27 1987-03-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4425487U JPS63152397U (ja) 1987-03-27 1987-03-27

Publications (1)

Publication Number Publication Date
JPS63152397U true JPS63152397U (ja) 1988-10-06

Family

ID=30861888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4425487U Pending JPS63152397U (ja) 1987-03-27 1987-03-27

Country Status (1)

Country Link
JP (1) JPS63152397U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008205598A (ja) * 2007-02-16 2008-09-04 Canon Inc スピーカ装置、スピーカ駆動装置、およびそれらの制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008205598A (ja) * 2007-02-16 2008-09-04 Canon Inc スピーカ装置、スピーカ駆動装置、およびそれらの制御方法

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