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用高放大系数的五极管作输入级电压放大,功率放大管作输出级的胆前级放大器具有独特的效果,用此两种放大管搭配制作胆前级,控制输出电平,前、后级采用三只音量电位器精调。
With a high amplification factor of the pentode as the input voltage amplification, the power amplifier for the output stage of the amplifier preamplifier has a unique effect, with the two amplifier with the production of gall bladder level control output level before and after Level using three volume potentiometer fine tuning.