Version 4
SHEET 1 880 680
WIRE 320 -320 320 -352
WIRE 320 -224 320 -240
WIRE 320 -224 160 -224
WIRE 320 -192 320 -224
WIRE -160 -144 -256 -144
WIRE 256 -144 -80 -144
WIRE -64 -64 -112 -64
WIRE 160 -64 160 -224
WIRE 160 -64 0 -64
WIRE 160 -16 160 -64
WIRE -256 32 -256 -144
WIRE -224 32 -256 32
WIRE -112 32 -112 -64
WIRE -112 32 -160 32
WIRE -64 32 -112 32
WIRE 96 32 16 32
WIRE 160 96 160 80
WIRE 320 96 320 -96
WIRE -256 224 -256 32
WIRE -256 224 -400 224
WIRE 160 224 160 176
WIRE 320 224 320 176
WIRE 320 224 160 224
WIRE 416 224 320 224
WIRE -400 256 -400 224
WIRE 160 256 160 224
WIRE -400 384 -400 336
WIRE 160 384 160 336
FLAG 160 384 0
FLAG 320 -352 0
FLAG -400 384 0
FLAG 416 224 OUT
FLAG -400 224 IN
SYMBOL res 336 192 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 176 192 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 176 352 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL voltage 320 -224 R180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL pnp 256 -96 M180
SYMATTR InstName Q1
SYMATTR Value 2N3906
SYMBOL pnp 96 80 M180
SYMATTR InstName Q2
SYMATTR Value 2N3906
SYMBOL voltage -400 240 R0
WINDOW 3 49 49 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(5 0 10m 10n 10n 200m 211m 2)
SYMBOL res -64 -160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL cap -160 16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL res 32 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 15k
SYMBOL diode -64 -48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
TEXT -354 320 Left 2 !.tran 500m