A Cascode Amplifier

** Circuit Description **
* power supplies
Vcc 1 0 DC +15V
* input signal source
Vs 9 0 AC 1V
Rs 9 8 4k
* CE stage (input stage)
Cc1 6 8 1uF
R1 1 3 18k
R2 3 6 4k
R3 6 0 8k
Q1 4 6 7 Q2N3904
Re 7 0 3.3k
Ce 7 0 10uF
* CB stage (upper stage)
Q2 2 3 4 Q2N3904
Rc 1 2 6k
Cb 3 0 10uF
Cc2 2 5 1uF
* output load
Rl 5 0 4k
*
* transistor model statement for 2N3904
.model Q2N3904  NPN (Is=6.734f Xti=3 Eg=1.11 Vaf=74.03 Bf=416.4 Ne=1.259
+                    Ise=6.734f Ikf=66.78m Xtb=1.5 Br=.7371 Nc=2 Isc=0 Ikr=0 Rc=1
+                    Cjc=3.638p Mjc=.3085 Vjc=.75 Fc=.5 Cje=4.493p Mje=.2593 Vje=.75
+                    Tr=239.5n Tf=301.2p Itf=.4 Vtf=4 Xtf=2 Rb=10)
** Analysis Requests **
.OP
.AC DEC 10 1Hz 100MegHz 
** Output Requests **
.PLOT AC VdB(5)
.probe
.end