Inverting Amplifier with 1 Transister Vin in 0 DC 0 AC 1V 180degree sin(0 1m 10k) Vcc 5 0 DC 12V Cin in 2 47u Ra 2 0 4.7k Rb 5 2 15k Rc 5 3 1.8k Re 4 0 680 Q1 3 2 4 2SC1815 Ce 4 0 47u Cout 3 out 47u Rl out 0 5.1k .tran 1u 500u .ac dec 50 10Hz 500MegHz .model 2SC1815 NPN ( + IS=6.395E-016 XTI=3 EG=1.11 VAF=172.5 BF=149.9 + ISE=7.501E-016 NE=1.47 IKF=0.8587 XTB=1.5 VAR=100 + BR=6.575 ISC=4.653E-015 NC=1.185 IKR=0.4534 RC=0.7972 + CJC=4.858E-012 MJC=0.3333 VJC=0.75 FC=0.5 CJE=5E-012 + MJE=0.3333 VJE=0.75 TR=1E-008 TF=3.143E-010 ITF=13.01 + XTF=0 VTF=10 ) *#destroy all *#run *#plot 10*tran1.v(in) tran1.v(out) *#plot db(ac1.v(out)) *#set units=degrees *#plot ph(ac1.v(out)) .end