JPS593609U - Muting circuit - Google Patents

Muting circuit

Info

Publication number
JPS593609U
JPS593609U JP9900082U JP9900082U JPS593609U JP S593609 U JPS593609 U JP S593609U JP 9900082 U JP9900082 U JP 9900082U JP 9900082 U JP9900082 U JP 9900082U JP S593609 U JPS593609 U JP S593609U
Authority
JP
Japan
Prior art keywords
muting
constant voltage
voltage circuit
amplifier
muting circuit
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
JP9900082U
Other languages
Japanese (ja)
Inventor
節郎 川崎
Original Assignee
株式会社東芝
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 株式会社東芝 filed Critical 株式会社東芝
Priority to JP9900082U priority Critical patent/JPS593609U/en
Publication of JPS593609U publication Critical patent/JPS593609U/en
Pending legal-status Critical Current

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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図はこの考案に係るミューティング回路の一実施例
を示す構成図、第2図は第1図の動作を説明するための
各部の波形図である。 11・・・再生ヘッド、12・・・再生増幅器、13・
・・電力増幅器V14・・・スピーカ、15・・・音量
調整器、16・・・定電圧回路、17・・・電源スィッ
チ、18・・・電源、Q□〜Q3・・・トランジセタ、
Dl・・・ツェナーダイオード、D2・・・ダイオード
、R1−R4・・・抵抗、C・・・コンデンサ。
FIG. 1 is a block diagram showing an embodiment of the muting circuit according to the invention, and FIG. 2 is a waveform diagram of each part for explaining the operation of FIG. 1. 11... Reproduction head, 12... Reproduction amplifier, 13.
... Power amplifier V14 ... Speaker, 15 ... Volume adjuster, 16 ... Constant voltage circuit, 17 ... Power switch, 18 ... Power supply, Q - Q3 ... Transistor,
Dl... Zener diode, D2... Diode, R1-R4... Resistor, C... Capacitor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ツェナーダイオードを含む定電圧回路と、この定電圧回
路からの定電圧出力が供給される増幅器と、前記定電圧
回路に含まれるツェナーダイオードが安定に動作する迄
の開駆動状態に設定されるミューティング素子とを具備
し、このミューティング素子によって前記増幅器の出力
を実質的にミューティングせしめる構成としたことを特
徴とするミューティング回路。
A constant voltage circuit including a Zener diode, an amplifier to which a constant voltage output from the constant voltage circuit is supplied, and muting that is set to an open drive state until the Zener diode included in the constant voltage circuit operates stably. 1. A muting circuit, comprising: a muting element, the muting element substantially muting the output of the amplifier.
JP9900082U 1982-06-30 1982-06-30 Muting circuit Pending JPS593609U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9900082U JPS593609U (en) 1982-06-30 1982-06-30 Muting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9900082U JPS593609U (en) 1982-06-30 1982-06-30 Muting circuit

Publications (1)

Publication Number Publication Date
JPS593609U true JPS593609U (en) 1984-01-11

Family

ID=30234798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9900082U Pending JPS593609U (en) 1982-06-30 1982-06-30 Muting circuit

Country Status (1)

Country Link
JP (1) JPS593609U (en)

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