Version 4
SHEET 1 1944 680
WIRE 560 -304 368 -304
WIRE 368 -240 368 -304
WIRE 192 -128 144 -128
WIRE 368 -128 368 -160
WIRE 368 -128 272 -128
WIRE 368 -80 368 -128
WIRE 560 -80 560 -304
WIRE 144 -32 144 -128
WIRE 304 -32 144 -32
WIRE 368 64 368 16
WIRE 560 64 560 0
WIRE 560 64 368 64
WIRE 368 128 368 64
FLAG 368 128 0
SYMBOL npn 304 -80 R0
SYMATTR InstName Q1
SYMATTR Value BU705
SYMBOL Misc\\EuropeanResistor 352 -256 R0
SYMATTR InstName R1
SYMATTR Value 2K
SYMBOL Misc\\EuropeanResistor 288 -144 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 50K
SYMBOL voltage 560 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 36 42 Left 2
SYMATTR InstName V1
SYMATTR Value 250
SYMATTR SpiceLine Rser=0
TEXT -40 168 Left 2 !.model BU705    NPN(Is=30.73n Xti=3 Eg=1.11 Vaf=100 Bf=19.28 Ise=246.8n\n+               Ne=1.832 Ikf=1.083 Nk=.6266 Xtb=1.5 Br=2.014 Isc=6.122u\n+               Nc=1.683 Ikr=1.552 Rc=40.87m Cjc=194.3p Mjc=.3333 Vjc=.5 Fc=.5\n+               Cje=582p Mje=.3333 Vje=.5 Tr=1u Tf=20.83n Itf=498.9 Xtf=51.13K\n+               Vtf=10)\n*                               TELEFUNKEN      pid=bu705       case=TOP3\n*                               91-08-14 dsq
TEXT -42 356 Left 2 !.tran 0 1 0 0.1
TEXT 968 176 Left 2 !.model BU508A   NPN(Is=148.5p Xti=3 Eg=1.11 Vaf=100 Bf=43.23 Ise=1.355n\n+               Ne=1.413 Ikf=8.245 Nk=.8069 Xtb=1.75 Br=2.131 Isc=529.1p\n+               Nc=1.567 Ikr=1.689 Rc=32.64m Cjc=303.6p Mjc=.3333 Vjc=.5 Fc=.5\n+               Cje=910.8p Mje=.3333 Vje=.5 Tr=16.1u Tf=22.02n Itf=183.6\n+               Xtf=18.91K Vtf=10)\n*                               TELEFUNKEN      pid=bu508       case=TOP3\n*                               91-08-14 dsq