Version 4
SHEET 1 1804 1872
WIRE -1840 144 -1952 144
WIRE -1664 144 -1840 144
WIRE -1952 208 -1952 144
WIRE -1840 224 -1840 144
WIRE -1664 336 -1664 144
WIRE -1840 384 -1840 304
WIRE -1728 384 -1840 384
WIRE -1840 400 -1840 384
WIRE -1840 496 -1840 464
WIRE -1664 560 -1664 432
WIRE -1952 688 -1952 288
WIRE -1840 688 -1840 560
WIRE -1840 688 -1952 688
WIRE -1776 688 -1840 688
WIRE -1664 688 -1664 640
WIRE -1664 688 -1776 688
WIRE -1776 720 -1776 688
FLAG -1776 720 0
SYMBOL voltage -1952 192 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=1
SYMATTR InstName V1
SYMATTR Value 30
SYMBOL res -1680 544 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL npn -1728 336 R0
SYMATTR InstName Q1
SYMATTR Value BC107B
SYMBOL diode -1856 496 R0
SYMATTR InstName D1
SYMATTR Value D1N4001
SYMBOL res -1856 208 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL diode -1856 400 R0
SYMATTR InstName D3
SYMATTR Value D1N4001
TEXT -768 1856 Left 0 !.tran 50
TEXT -1624 144 Left 2 !.model D1N4001 D(Is=14.11n N=1.984 Rs=33.89m Ikf=94.81 Xti=3 Eg=1.11 Cjo=25.89p M=.44 Vj=.3245 Fc=.5 Bv=75 Ibv=10u Tt=5.7u Iave=1 Vpk=50 mfg=GI type=silicon)
TEXT -1600 184 Left 2 !.model BC107B NPN(Is=7.049f Xti=3 Eg=1.11 Vaf=59.59 Bf=381.7 Ise=59.74f Ne=1.522 Ikf=3.289 Nk=.5 Xtb=1.5 Br=2.359 Isc=192.9p Nc=1.954 Ikr=7.807 Rc=1.427 Cjc=5.38p Mjc=.329 Vjc=.6218 Fc=.5 Cje=11.5p Mje=.2718 Vje=.5 Tr=10n Tf=438p Itf=5.716 Xtf=14.51 Vtf=10 Vceo=50 Icrating=100m mfg=Philips)
TEXT -1560 232 Left 2 !.model D1N4007 D(IS=7.02767n RS=0.0341512 N=1.80803 EG=1.05743 XTI=5 BV=1000 IBV=5e-08 CJO=1e-11 VJ=0.7 M=0.5 FC=0.5 TT=1e-07 mfg=OnSemi type=silicon)