JPS643233U - - Google Patents

Info

Publication number
JPS643233U
JPS643233U JP9478687U JP9478687U JPS643233U JP S643233 U JPS643233 U JP S643233U JP 9478687 U JP9478687 U JP 9478687U JP 9478687 U JP9478687 U JP 9478687U JP S643233 U JPS643233 U JP S643233U
Authority
JP
Japan
Prior art keywords
circuit
speaker
output
power supply
supplied
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
JP9478687U
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 JP9478687U priority Critical patent/JPS643233U/ja
Publication of JPS643233U publication Critical patent/JPS643233U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
図面は本考案の構成を示すブロツク図である。 3……呼出し音発生回路、4……スピーチネツ
トワーク回路、5……増幅回路、6……電源回路
、7……リレー接点、9……リレー。

Claims (1)

    【実用新案登録請求の範囲】
  1. 着信のベル信号を整流する整流回路と、整流電
    圧の供給で呼出し音を発生する回路と、該回路の
    出力を増幅する増幅回路と、増幅回路に駆動電圧
    を供給する電源回路と、スピーカと、前記電源回
    路より駆動電圧が供給されている時は増幅回路の
    出力とスピーカを接続し、一方駆動電圧が供給さ
    れていない時は、前記発生回路の出力をスピーカ
    に接続するよう切換える切換手段で構成したこと
    を特徴とする電話機の呼出し音発生装置。
JP9478687U 1987-06-19 1987-06-19 Pending JPS643233U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9478687U JPS643233U (ja) 1987-06-19 1987-06-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9478687U JPS643233U (ja) 1987-06-19 1987-06-19

Publications (1)

Publication Number Publication Date
JPS643233U true JPS643233U (ja) 1989-01-10

Family

ID=31319361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9478687U Pending JPS643233U (ja) 1987-06-19 1987-06-19

Country Status (1)

Country Link
JP (1) JPS643233U (ja)

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