<p>A preamplifier circuit for amplifying a video signal reproduced by a magnetic head includes a positive feedback circuit for reducing an input capacitance thereof. A negative feedback circuit may be added thereto for stabilizing an operation of the preamplifier.</p>
申请公布号
EP0264812(A2)
申请公布日期
1988.04.27
申请号
EP19870115022
申请日期
1987.10.14
申请人
HITACHI, LTD.;HITACHI VIDEO ENGINEERING, INCORPORATED
