| 摘要 |
FIELD: electronic equipment, in particular, hi-fi record playback. SUBSTANCE: device has reading magnetic head, correcting capacitor, operational amplifier, feedback circuit, which has three resistors and capacitor. Said feedback circuit is connected between output of operational amplifier and common line. First terminal of reading magnetic head is connected to inverting input of operational amplifier. Its second terminal is connected to feedback circuit. Direct input of operational amplifier is connected to common line. EFFECT: decreased frequency and non-linear distortion. 3 cl, 2 dwgm
|
