JPS5872711U - Tape recorder amplifier circuit - Google Patents
Tape recorder amplifier circuitInfo
- Publication number
- JPS5872711U JPS5872711U JP16631481U JP16631481U JPS5872711U JP S5872711 U JPS5872711 U JP S5872711U JP 16631481 U JP16631481 U JP 16631481U JP 16631481 U JP16631481 U JP 16631481U JP S5872711 U JPS5872711 U JP S5872711U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier circuit
- negative feedback
- tape recorder
- feedback path
- control transistor
- 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
Links
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案テープレコーダの増幅回路図である。
５・・・・・・主増幅回路、７． ８． ９・曲・分割
抵抗、１０・・・・・・負帰還路、１２・・・・・・制
御トランジスタ、１６・・・・・・電池。The figure is an amplifier circuit diagram of the tape recorder of the present invention. 5... Main amplifier circuit, 7. 8. 9. Bending/dividing resistor, 10... Negative feedback path, 12... Control transistor, 16... Battery.
Claims (1)
回路の負帰還路に負帰還量を制御する分割抵抗を接続し
、前記分割抵抗の一方に制御トランジスタを接続し、該
制御トランジスタを電池型−圧に応じて制御し、前記負
帰還路の負帰還量を電池電圧の減少に反比例して増大さ
せることを特徴とするテープレコーダの増幅回路。A dividing resistor for controlling the amount of negative feedback is connected to the negative feedback path of an amplifier circuit that amplifies the signal from the magnetic head or microphone, a control transistor is connected to one side of the dividing resistor, and the control transistor is connected to a battery type voltage. 1. An amplifier circuit for a tape recorder, characterized in that the amplifier circuit controls the negative feedback path accordingly, and increases the amount of negative feedback of the negative feedback path in inverse proportion to a decrease in battery voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16631481U JPS5872711U (en) | 1981-11-06 | 1981-11-06 | Tape recorder amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16631481U JPS5872711U (en) | 1981-11-06 | 1981-11-06 | Tape recorder amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5872711U true JPS5872711U (en) | 1983-05-17 |
Family
ID=29958478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16631481U Pending JPS5872711U (en) | 1981-11-06 | 1981-11-06 | Tape recorder amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5872711U (en) |
-
1981
- 1981-11-06 JP JP16631481U patent/JPS5872711U/en active Pending
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