Version 4
SHEET 1 1760 680
WIRE -416 224 -416 208
WIRE -416 336 -416 304
WIRE -416 432 -416 416
WIRE -384 208 -416 208
WIRE -320 160 -320 128
WIRE -320 432 -416 432
WIRE -320 432 -320 256
WIRE -240 128 -320 128
WIRE -240 336 -240 128
WIRE -240 432 -320 432
WIRE -240 432 -240 400
WIRE -208 128 -240 128
WIRE -144 80 -144 64
WIRE -144 192 -144 176
WIRE -144 304 -144 192
WIRE -144 432 -240 432
WIRE -144 432 -144 384
WIRE -80 432 -144 432
WIRE -80 432 -80 128
WIRE -80 448 -80 432
WIRE -48 128 -80 128
WIRE -48 192 -144 192
WIRE -48 256 -160 256
WIRE 192 64 -144 64
WIRE 192 128 176 128
WIRE 192 128 192 64
WIRE 192 176 192 128
WIRE 192 320 176 320
WIRE 192 336 192 320
WIRE 192 432 -80 432
WIRE 192 432 192 400
WIRE 208 192 176 192
WIRE 208 256 176 256
WIRE 208 256 208 192
WIRE 224 128 192 128
WIRE 256 192 208 192
WIRE 256 240 256 192
WIRE 256 432 192 432
WIRE 256 432 256 304
WIRE 320 128 304 128
WIRE 320 192 256 192
WIRE 320 192 320 128
WIRE 336 176 192 176
WIRE 336 336 336 176
WIRE 336 432 256 432
WIRE 336 432 336 416
FLAG -80 448 0
FLAG -160 256 Out
IOPIN -160 256 Out
SYMBOL res 320 112 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 15K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res -400 320 R180
WINDOW 0 -34 66 Left 0
WINDOW 3 -40 26 Left 0
SYMATTR InstName R2
SYMATTR Value 22k
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL polcap 176 336 R0
WINDOW 3 24 64 Left 0
SYMATTR Value 10n
SYMATTR InstName C1
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=50 Irms=22m Rser=3.9 MTBF=2000 Lser=0 ppPkg=1
SYMBOL npn3 -384 160 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL voltage -416 320 R0
WINDOW 3 24 104 Invisible 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 -17 57 Left 0
SYMATTR Value PWL(0 -0.4 53u -0.4 54u 2.5 60u 2.5 61u 10 63u 10 64u -0.4 117u -0.4 118u 2.5 124u 2.5 125u 10 127u 10 128u -0.4 181u -0.4 182u 2.5 188u 2.5 189u 10 191u 10 192u -0.4)
SYMATTR InstName V2
SYMBOL pnp2 -208 176 M180
WINDOW 3 51 68 Left 0
SYMATTR Value 2N3906
SYMATTR InstName Q2
SYMBOL res -160 288 R0
WINDOW 3 24 84 Left 0
SYMATTR Value 22K
SYMATTR InstName R3
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL voltage 336 320 R0
WINDOW 0 -65 92 Left 0
WINDOW 3 -14 60 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 -20 -62 VRight 0
SYMATTR InstName V1
SYMATTR Value 12
SYMATTR SpiceLine Rser=1
SYMBOL cap 240 240 R0
WINDOW 0 27 -22 Left 0
WINDOW 3 27 5 Left 0
SYMATTR InstName C2
SYMATTR Value 2n2
SYMBOL cap -256 336 R0
SYMATTR InstName C3
SYMATTR Value 1n2
SYMBOL Robertugo\\555_ALL 112 240 R0
WINDOW 38 -88 70 Left 0
SYMATTR InstName U1
TEXT 24 408 Left 0 !.tran 200u