JPS61124112U - - Google Patents

Info

Publication number
JPS61124112U
JPS61124112U JP749085U JP749085U JPS61124112U JP S61124112 U JPS61124112 U JP S61124112U JP 749085 U JP749085 U JP 749085U JP 749085 U JP749085 U JP 749085U JP S61124112 U JPS61124112 U JP S61124112U
Authority
JP
Japan
Prior art keywords
changing
volume adjustment
circuit
power supply
supply voltage
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
JP749085U
Other languages
English (en)
Other versions
JPH066606Y2 (ja
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 JP1985007490U priority Critical patent/JPH066606Y2/ja
Publication of JPS61124112U publication Critical patent/JPS61124112U/ja
Application granted granted Critical
Publication of JPH066606Y2 publication Critical patent/JPH066606Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

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

Description

【図面の簡単な説明】
第1図は本考案の音量調整回路の回路図、第2
図は第1図の回路の動作を説明するタイムチヤー
ト、第3図は従来の音量調整回路の回路図である
。 5,6はトランジスタ、18は可変抵抗、21
はトランジスタ。

Claims (1)

  1. 【実用新案登録請求の範囲】 1 入力パルス波信号をトランジスタの飽和領域
    で増幅する増幅において、上記増幅器に供給する
    直流電源電圧を音量調整に応じて変化させて出力
    信号の振幅を調整することを特徴とする音量調整
    回路。 2 上記直流電源電圧を変化させる回路は、脈流
    電圧の導通角を変化させる回路部分からなること
    を特徴とする上記第1項記載の音量調整回路。
JP1985007490U 1985-01-22 1985-01-22 音量調整回路 Expired - Lifetime JPH066606Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985007490U JPH066606Y2 (ja) 1985-01-22 1985-01-22 音量調整回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985007490U JPH066606Y2 (ja) 1985-01-22 1985-01-22 音量調整回路

Publications (2)

Publication Number Publication Date
JPS61124112U true JPS61124112U (ja) 1986-08-05
JPH066606Y2 JPH066606Y2 (ja) 1994-02-16

Family

ID=30485889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985007490U Expired - Lifetime JPH066606Y2 (ja) 1985-01-22 1985-01-22 音量調整回路

Country Status (1)

Country Link
JP (1) JPH066606Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54168150U (ja) * 1978-05-18 1979-11-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54168150U (ja) * 1978-05-18 1979-11-27

Also Published As

Publication number Publication date
JPH066606Y2 (ja) 1994-02-16

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