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图150为凯歌4D8型31cm黑白电视机中放实际电路,也是一个典型的电流负反馈分压式偏置电路。其直流工作点等效电路如图150(b)所示(在直流等效
Figure 150 for Kay song 4D8 type 31cm black and white TV put in the actual circuit, but also a typical current negative feedback voltage divider bias circuit. The DC operating point equivalent circuit shown in Figure 150 (b) (equivalent to DC