// model for a 2n2222 transistor
model 2n2222 bjt type=npn is=19f bf=150 vaf=100 ikf=0.18 ise=50p 
+ ne=2.5 br=7.5 var=6.4 ikr=12m isc=8.7p nc=1.2 rb=50 re=0.4
+ rc=0.3 cje=26p tf=0.5n cjc=11p tr=7n xtb=1.5 kf=0.032f af=1
// model for a 2n2907 transistor
model 2n2907 bjt type=pnp is=1.1p bf=200 nf=1.2 vaf=50 ikf=0.1 ise=13p
+ ne=1.9 br=6 rc=0.6 cje=23p vje=0.85 mje=1.25 tf=0.5n cjc=19p
+ vjc=0.5 mjc=0.2 tr=34n xtb=1.5