Version 4
SHEET 1 1320 680
WIRE 272 -48 0 -48
WIRE 272 0 272 -48
WIRE 0 144 0 -48
WIRE 272 144 272 80
WIRE 368 144 272 144
WIRE 512 144 432 144
WIRE 672 144 512 144
WIRE 800 144 752 144
WIRE 272 192 272 144
WIRE 800 224 800 144
WIRE 512 240 512 144
WIRE 512 240 336 240
WIRE 0 320 0 224
WIRE 272 320 272 288
WIRE 272 320 0 320
WIRE 800 320 800 304
WIRE 800 320 272 320
WIRE 272 336 272 320
FLAG 272 336 0
SYMBOL ind 256 -16 R0
SYMATTR InstName L1
SYMATTR Value 1mH
SYMATTR SpiceLine Rser=100
SYMBOL npn 336 192 M0
WINDOW 0 38 29 Left 2
WINDOW 3 24 55 Left 2
SYMATTR InstName Q1
SYMBOL voltage 0 128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMATTR SpiceLine Rser=0.01
SYMBOL voltage 800 208 R0
WINDOW 3 -322 137 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 -322 165 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0.001 0.00001 0.00001 0.5 2 5)
SYMBOL res 768 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL cap 432 160 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 4n7
SYMATTR SpiceLine V=100
TEXT -34 330 Left 2 !.tran 10