VC>VB>VE, Vb-e=0.6V~0.7V

   전압증폭도

                           Vt        26mV
                    re = --- = --------- = 26Ω
                            Io     0.986mA 
 

                                 RC               5100
                    Av = ---------- = ----------- = 2.79 (반전함으로 -2.79)
                              re + RE         26 + 1800