Version 4
SHEET 1 6484 884
WIRE 192 -128 192 -192
WIRE 192 64 192 -48
WIRE 288 64 192 64
WIRE 464 64 352 64
WIRE 192 160 192 64
WIRE 288 160 192 160
WIRE 464 160 352 160
WIRE 192 272 192 160
WIRE -608 320 -672 320
WIRE 128 320 -528 320
WIRE 192 480 192 368
WIRE 192 656 192 560
WIRE 336 656 192 656
WIRE 192 720 192 656
WIRE 192 864 192 800
FLAG 192 864 0
FLAG 192 -192 0
FLAG 464 64 0
FLAG -672 320 0
FLAG 336 656 OUT
FLAG 464 160 0
SYMBOL npn 128 272 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL res 208 816 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 255
SYMBOL voltage 192 -32 R180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 24 68 Left 2
SYMATTR InstName V5
SYMATTR Value 17V
SYMATTR SpiceLine Rser=10m
SYMBOL cap 352 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 100nF
SYMATTR SpiceLine Rser=20m
SYMBOL voltage -512 320 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 60 56 VTop 2
SYMATTR InstName V6
SYMATTR Value PULSE(0V 15V 0 3n 3n 13ns 28ns 20)
SYMATTR SpiceLine Rser=150
SYMBOL cap 352 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 10µF
SYMATTR SpiceLine Rser=20m
SYMBOL res 176 464 R0
SYMATTR InstName R1
SYMATTR Value 2000
TEXT -392 440 Left 2 !.tran 0.6µs