JPS6012811U - Playback equalizer circuit for magnetic recording and playback equipment - Google Patents
Playback equalizer circuit for magnetic recording and playback equipmentInfo
- Publication number
- JPS6012811U JPS6012811U JP10229783U JP10229783U JPS6012811U JP S6012811 U JPS6012811 U JP S6012811U JP 10229783 U JP10229783 U JP 10229783U JP 10229783 U JP10229783 U JP 10229783U JP S6012811 U JPS6012811 U JP S6012811U
- Authority
- JP
- Japan
- Prior art keywords
- playback
- magnetic tape
- capacitors
- circuit
- equalizer 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
Links
Landscapes
- 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
第１図イは従来の磁気録音再生装置の再生イコライザ回
路で負帰還回路中に磁気テープ切換スイッチが設けであ
る回路図、第１図口は従来の磁気録音再生装置の負帰還
回路の出力側にイコライザ素子を設け、これを磁気テー
プ切換スイッチで選択するよう構成した再生イコライザ
回路の回路図、第２図は本考案による再生イコライザ回
路を示す回路図、第３図は第２図に示す再生イコライザ
回路のイコライザ素子によるボード線図による周波数ゲ
イン特性曲線を示す図である。
２・・・オペアンプ、４・・・イコライザ素子、５・・
・スイッチングトランジスタ、６・・・検出回路。Figure 1A is a circuit diagram of a playback equalizer circuit of a conventional magnetic recording/playback device, in which a magnetic tape selector switch is provided in the negative feedback circuit.Figure 1A shows the output side of the negative feedback circuit of a conventional magnetic recording/playback device. A circuit diagram of a reproduction equalizer circuit in which an equalizer element is provided in the circuit and the equalizer element is selected by a magnetic tape selector switch, FIG. 2 is a circuit diagram showing the reproduction equalizer circuit according to the present invention, and FIG. FIG. 3 is a diagram showing a frequency gain characteristic curve based on a Bode diagram of an equalizer element of an equalizer circuit. 2... operational amplifier, 4... equalizer element, 5...
- Switching transistor, 6... detection circuit.
Claims (1)
定速再生時の時定数に固定された負帰還回路と、この負
帰還回路の出力側に接続された少くとも二つのコンデン
サと、この少くとも二つのコンデンサの接続点及び接地
側に近いコンデンサに接続される抵抗素子とより再生イ
コライザ回路を構成し、上記少くとも二つのコンデンサ
により一方の磁気テープの倍速時の再生特性を決定する
と共に他方の磁気テープの定速時の再生特性を決定し、
他方の磁気テープの倍速時の再生特性を上記二つのコン
デンサの接続点より構成されるコンデンサと抵抗の並列
回路により決定するよう構成した磁気録音再生装置の再
生イコライザ回路。a negative feedback circuit fixed to a time constant during constant speed reproduction of one magnetic tape for reproduction compensation of a magnetic tape reproduction signal; at least two capacitors connected to the output side of this negative feedback circuit; The connecting point of the two capacitors and a resistive element connected to the capacitor close to the ground side constitute a playback equalizer circuit, and at least the above two capacitors determine the playback characteristics of one magnetic tape at double speed, and also determine the playback characteristics of the other magnetic tape. Determining the playback characteristics of magnetic tape at constant speed,
A playback equalizer circuit for a magnetic recording and playback device configured to determine the playback characteristics of the other magnetic tape at double speed by a parallel circuit of a capacitor and a resistor formed by the connection point of the two capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10229783U JPS6012811U (en) | 1983-06-30 | 1983-06-30 | Playback equalizer circuit for magnetic recording and playback equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10229783U JPS6012811U (en) | 1983-06-30 | 1983-06-30 | Playback equalizer circuit for magnetic recording and playback equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6012811U true JPS6012811U (en) | 1985-01-28 |
Family
ID=30241201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10229783U Pending JPS6012811U (en) | 1983-06-30 | 1983-06-30 | Playback equalizer circuit for magnetic recording and playback equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012811U (en) |
-
1983
- 1983-06-30 JP JP10229783U patent/JPS6012811U/en active Pending
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