JPS58107685U

JPS58107685U - stereo playback device

Info

Publication number: JPS58107685U
Application number: JP313282U
Authority: JP
Inventors: 豊和江口
Original assignee: 株式会社東芝
Priority date: 1982-01-13
Filing date: 1982-01-13
Publication date: 1983-07-22

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

[Brief explanation of the drawing]

第１”図は従来のステレオ再生装置を示す回路構成図、
第２図はこの考案に係るステレオ再生装置　　゛の一実
施例を示す回路構成図である。Ｌ・・・左チャンネル、Ｒ・・・右チャンネル、ＩＮ、
□。ＩＮ、・・・入力端、ＶＲ□□、　ＶＲ□２・・・音量
調節用可変抵抗器、Ａ１□、Ａ□２・・・出力増幅器、
Ｒ１□〜Ｒ１４・・・抵抗、ＮＦＢ□□、　ＮＦＢ□２
・・・帰還回路、Ｃ□１．Ｃ□２・・・コンデンサ、Ｅ
・・・電池電源、Ｒｇ・・・内部インピーダンス、Ｃｏ
・・・バイパスコンデンサ、ＳＰ□□、ＳＰ□２・・・
負荷。Figure 1 is a circuit diagram showing a conventional stereo playback device.
FIG. 2 is a circuit diagram showing an embodiment of the stereo reproduction device according to the invention. L...Left channel, R...Right channel, IN,
□. IN,...Input terminal, VR□□, VR□2...Variable resistor for volume adjustment, A1□, A□2...Output amplifier,
R1□~R14...Resistance, NFB□□, NFB□2
...Feedback circuit, C□1. C□2...Capacitor, E
...Battery power supply, Rg...Internal impedance, Co
...Bypass capacitor, SP□□, SP□2...
load.

Claims

[Scope of utility model registration request]

In a stereo playback device 2 in which a load is connected between the output end of each output amplifier driven by a battery power source connected to a bypass capacitor and the battery power source, an input circuit and a feedback circuit of each of the output amplifiers are connected. A stereo playback device characterized in that a reference potential point of is set at a connection point between the battery power source and the load.