四、晶体管正弦振荡器利用结型晶体管可产生低频和高频的正弦振荡,它们在形式上与电子管自激振荡器有许多相似之处,如在电子管电路中有调板式、哈特莱式、考毕兹式等LC振荡器,在晶体管中也可有对应的形式,但在具体讨论时,晶体管电路有其特殊要求.在此,只简单分析晶体管振荡器的起振条件及振荡频率,故可用线性方法进行分析,而把晶体管看成是线性有源的器件. Fourth, the transistor sinusoidal oscillator The use of junction transistors can produce low-frequency and high-frequency sinusoidal oscillations in the form of self-excited with the tube oscillator has many similarities, such as the tube circuit in the regulator board, Hartley-type, Colloquially and other LC oscillators, in the transistor can also have a corresponding form, but in the specific discussion, the transistor circuit has its special requirements. Here, only a simple analysis of the oscillator oscillator oscillation conditions and oscillation frequency, so Linear methods can be used to analyze the transistor as a linear active device.