【判断题】【消耗次数：1】
电路由两级射极跟随器和一级功率放大器组成。该说法（ ）
①
正确
②
错误
参考答案：
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电路由两级放大器组成。V1管是第一级放大器的放大管，电位器RP1、电阻器R1和R2是基极偏置电阻，电阻器R3是集电极电阻，R4、R5是发射极偏置电阻，C2是旁路电容。
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对测量放大器每一级电路电压，首先应人该级电源电路元器件着手，通常电压_________均说明电路有故障。
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