这是一架带有衰减高音、提升低音锗管硅管混合式音频功率放大器,在6伏电源供电情况下,能向8欧负载提供200毫瓦不失真功率,最大输出功率为300毫瓦。电路如图所示。本电线路分别由音调控制部分、前置级和功率几部分组成。前置级带有音调部分,音调控制元件均由W-2、C_2、R_3、C_3组成,当电位器W_2调至左端 This is a silicon-tube hybrid audio power amplifier with attenuating treble and boosting bass that provides 200 milliwatts of undistorted power to an 8 ohm load and a maximum output power of 300 milliwatts at 6 volts. Circuit as shown. The power line by the tone control section, the front stage and power of several parts. Pre-stage with tone part, tone control components by the W-2, C_2, R_3, C_3 composition, when the potentiometer W_2 transferred to the left