JPS6088689U - public address system - Google Patents

public address system

Info

Publication number
JPS6088689U
JPS6088689U JP5974384U JP5974384U JPS6088689U JP S6088689 U JPS6088689 U JP S6088689U JP 5974384 U JP5974384 U JP 5974384U JP 5974384 U JP5974384 U JP 5974384U JP S6088689 U JPS6088689 U JP S6088689U
Authority
JP
Japan
Prior art keywords
signal
speaker
amplifies
microphone
power amplifier
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
Application number
JP5974384U
Other languages
Japanese (ja)
Other versions
JPS6123909Y2 (en
Inventor
竹田　幸男
Original Assignee
松下電器産業株式会社
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 by 松下電器産業株式会社 filed Critical 松下電器産業株式会社
Priority to JP5974384U priority Critical patent/JPS6088689U/en
Publication of JPS6088689U publication Critical patent/JPS6088689U/en
Application granted granted Critical
Publication of JPS6123909Y2 publication Critical patent/JPS6123909Y2/ja
Granted legal-status Critical Current

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  • Details Of Audible-Bandwidth Transducers (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来例を示す回路図、第２図は本考案の一実施
例を示す回路図、第３図、第４図はそれぞれスピーカの
実施例を示す斜視図である。 １・・・マイクロホン、２・・・前置増幅器、６・・・
スピーカ、１１・・・再生ヘッド、１２・・・前置増幅
器、１３・・・ミキシング抵抗、１６・・・伴奏用スピ
ーカ、１７・・・緩衝増幅器。FIG. 1 is a circuit diagram showing a conventional example, FIG. 2 is a circuit diagram showing an embodiment of the present invention, and FIGS. 3 and 4 are perspective views each showing an embodiment of a speaker. 1...Microphone, 2...Preamplifier, 6...
Speaker, 11... Reproduction head, 12... Preamplifier, 13... Mixing resistor, 16... Accompaniment speaker, 17... Buffer amplifier.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] マイクロホンからの信号を増幅するマイクロホン信号前
置増幅器と、伴奏用音源信号を増幅する伴奏用信号前置
増幅器ならびに緩衝増幅器と、前記マイクロホン信号前
置増幅器と緩衝増幅器の出力を混合する混合回路と、こ
の混合回路の混合点からの信号を増幅する第１の電力増
幅器と、その第１の電力増幅器の出力によって動作する
第１のスピーカと、前記伴奏用信号前置増幅器と緩衝増
幅器との結合点からの信号を増幅する第２の電力増幅器
と、この第２の電力増幅器の出力によって動作する第２
のスピーカを備え、前記第１のスピーカを筐体前面に設
け、前記第２のスピーカを筐体の後面または側面に設け
て第２のスーカのみをマイクロホンの方に向けて配置し
たことを特徴とする拡声装置。a microphone signal preamplifier that amplifies a signal from a microphone, an accompaniment signal preamplifier and a buffer amplifier that amplifies an accompaniment sound source signal, and a mixing circuit that mixes the outputs of the microphone signal preamplifier and buffer amplifier; A first power amplifier that amplifies the signal from the mixing point of the mixing circuit, a first speaker operated by the output of the first power amplifier, and a connection point between the accompaniment signal preamplifier and the buffer amplifier. a second power amplifier that amplifies the signal from the second power amplifier;
, the first speaker is provided on the front surface of the housing, the second speaker is provided on the rear or side surface of the housing, and only the second speaker is disposed facing the microphone. public address system.
JP5974384U 1984-04-23 1984-04-23 public address system Granted JPS6088689U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5974384U JPS6088689U (en) 1984-04-23 1984-04-23 public address system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5974384U JPS6088689U (en) 1984-04-23 1984-04-23 public address system

Publications (2)

Publication Number Publication Date
JPS6088689U true JPS6088689U (en) 1985-06-18
JPS6123909Y2 JPS6123909Y2 (en) 1986-07-17

Family

ID=30189992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5974384U Granted JPS6088689U (en) 1984-04-23 1984-04-23 public address system

Country Status (1)

Country Link
JP (1) JPS6088689U (en)

Also Published As

Publication number Publication date
JPS6123909Y2 (en) 1986-07-17

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