JPS5978715U - Tape recorder line input amplifier - Google Patents

Tape recorder line input amplifier

Info

Publication number
JPS5978715U
JPS5978715U JP17430982U JP17430982U JPS5978715U JP S5978715 U JPS5978715 U JP S5978715U JP 17430982 U JP17430982 U JP 17430982U JP 17430982 U JP17430982 U JP 17430982U JP S5978715 U JPS5978715 U JP S5978715U
Authority
JP
Japan
Prior art keywords
transistor
tape recorder
line input
input amplifier
collector
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
JP17430982U
Other languages
Japanese (ja)
Other versions
JPH0117850Y2 (en
Inventor
信博 鈴木
Original Assignee
パイオニア株式会社
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 パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP17430982U priority Critical patent/JPS5978715U/en
Publication of JPS5978715U publication Critical patent/JPS5978715U/en
Application granted granted Critical
Publication of JPH0117850Y2 publication Critical patent/JPH0117850Y2/ja
Granted legal-status Critical Current

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Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Amplifiers (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 drawings]

第１図は従来のライン入力アンプの回路図、第２図は本
考案の一実施例よりなるテープレコーダのライン入力ア
ンプの回路図、および第３図は他の実施態様よりなるラ
イン入力アンプの回路図である。 １・・・ライン入力端子、ＶＲ・・・入力ボリューム、
Ｑ、、　Ｑ２．　Ｑ３・・・トランジスタ。FIG. 1 is a circuit diagram of a conventional line input amplifier, FIG. 2 is a circuit diagram of a tape recorder line input amplifier according to an embodiment of the present invention, and FIG. 3 is a circuit diagram of a line input amplifier according to another embodiment of the present invention. It is a circuit diagram. 1... Line input terminal, VR... Input volume,
Q,, Q2. Q3...Transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] トランジスター石よりなるテープレコーダのライン入力
アンプにおいて、該トランジスタＱ１のコレクタと電源
との間にトランジスタまたはダイオードＱ２を設け、か
つトランジスタＱ１のエミッタとアースとの間にトラン
ジスタＱ３を設け、トランジスタＱ１のコレクタをトラ
ンジスタＱ２のエミッタと接続し、トランジスタＱ□の
エミッタをトランジスタＱ３のコレクタへ接続し、さら
にトランジスタＱ２．　Ｑ３のベースをそれぞれ抵抗を
介して電源に接続することにより、電源オフ時の入力イ
ンピーダンスを高くするように構成したことを特徴とす
るテープレコーダのライン入力アンプ。In a tape recorder line input amplifier made of a transistor stone, a transistor or diode Q2 is provided between the collector of the transistor Q1 and the power supply, a transistor Q3 is provided between the emitter of the transistor Q1 and the ground, and the collector of the transistor Q1 is provided with a transistor or a diode Q2 between the collector of the transistor Q1 and the power supply. is connected to the emitter of transistor Q2, the emitter of transistor Q□ is connected to the collector of transistor Q3, and further transistors Q2. A line input amplifier for a tape recorder, characterized in that the bases of Q3 are connected to a power supply via resistors, respectively, so that the input impedance is increased when the power is turned off.
JP17430982U 1982-11-19 1982-11-19 Tape recorder line input amplifier Granted JPS5978715U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17430982U JPS5978715U (en) 1982-11-19 1982-11-19 Tape recorder line input amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17430982U JPS5978715U (en) 1982-11-19 1982-11-19 Tape recorder line input amplifier

Publications (2)

Publication Number Publication Date
JPS5978715U true JPS5978715U (en) 1984-05-28
JPH0117850Y2 JPH0117850Y2 (en) 1989-05-24

Family

ID=30379508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17430982U Granted JPS5978715U (en) 1982-11-19 1982-11-19 Tape recorder line input amplifier

Country Status (1)

Country Link
JP (1) JPS5978715U (en)

Also Published As

Publication number Publication date
JPH0117850Y2 (en) 1989-05-24

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