Version 4 SHEET 1 2044 1852 WIRE 560 1088 336 1088 WIRE 704 1088 560 1088 WIRE 704 1152 704 1088 WIRE 560 1184 560 1088 WIRE 336 1264 336 1088 WIRE 704 1280 704 1232 WIRE 704 1312 704 1280 WIRE 560 1360 560 1264 WIRE 640 1360 560 1360 WIRE 336 1536 336 1344 WIRE 576 1536 336 1536 WIRE 704 1536 704 1408 WIRE 704 1536 576 1536 WIRE 576 1584 576 1536 FLAG 576 1584 0 FLAG 704 1280 Vce SYMBOL npn 640 1312 R0 SYMATTR InstName Q2 SYMATTR Value 2N4401_1 SYMBOL ind 688 1136 R0 WINDOW 0 32 36 Left 0 SYMATTR InstName L1 SYMATTR Value 100µ SYMBOL voltage 336 1248 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 2.2 SYMBOL res 544 1168 R0 SYMATTR InstName R1 SYMATTR Value {R} TEXT 504 1032 Left 0 !.tran 10u uic TEXT -232 1672 Left 0 !.model 2N4401_1 NPN(Is=26.03f Xti=3 Eg=1.11 Vaf=90.7 Bf=4.3k Ne=1.244 Ise=26.03f Ikf=.2061 Xtb=1.5 Br=1.01 Nc=2 Isc=0 Ikr=0 Rc=.5 Cjc=11.01p\n+ Mjc=.3763 Vjc=.75 Fc=.5 Cje=24.07p Mje=.3641 Vje=.75 Tr=233.7n Tf=466.5p Itf=0 Vtf=0 Xtf=0 Rb=10 Vceo=40 Icrating=600m mfg=Fairchild) TEXT 752 1608 Left 0 !.step param R list 10K 5K 2.5K