Version 4
SHEET 1 1156 680
WIRE 224 -144 96 -144
WIRE 320 -144 224 -144
WIRE 496 -144 320 -144
WIRE 960 -144 496 -144
WIRE 1040 -144 960 -144
WIRE 96 -112 96 -144
WIRE 224 -112 224 -144
WIRE 320 -112 320 -144
WIRE 496 -112 496 -144
WIRE 960 -96 960 -144
WIRE 1040 -96 1040 -144
WIRE 320 -16 320 -32
WIRE 592 -16 320 -16
WIRE 96 0 96 -32
WIRE 320 0 320 -16
WIRE 496 0 496 -32
WIRE 960 32 960 -16
WIRE 1040 32 1040 -16
WIRE 736 64 704 64
WIRE 960 64 960 32
WIRE 960 64 928 64
WIRE 320 96 320 64
WIRE 496 96 496 64
WIRE 224 128 224 -32
WIRE 224 128 96 128
WIRE 592 128 592 -16
WIRE 736 160 704 160
WIRE 960 160 928 160
WIRE 320 192 320 160
WIRE 496 192 496 160
WIRE 960 208 960 160
WIRE 224 240 224 128
WIRE 256 240 224 240
WIRE 592 240 592 208
WIRE 592 240 560 240
WIRE 96 256 96 128
WIRE 320 320 320 288
WIRE 416 320 320 320
WIRE 496 320 496 288
WIRE 496 320 416 320
WIRE 736 320 704 320
WIRE 1040 320 1040 32
WIRE 1040 320 928 320
WIRE 96 352 96 320
WIRE 416 352 416 320
WIRE 592 352 592 240
WIRE 736 416 704 416
WIRE 960 416 928 416
WIRE 96 464 96 432
WIRE 416 464 416 432
WIRE 592 464 592 432
WIRE 960 464 960 416
FLAG 416 464 0
FLAG 592 464 0
FLAG 96 0 0
FLAG 96 464 0
FLAG 320 96 a1
FLAG 496 96 a2
FLAG 320 160 k1
FLAG 496 160 k2
FLAG 960 464 0
FLAG 960 208 0
FLAG 704 64 a1
FLAG 704 320 a2
FLAG 704 160 k1
FLAG 704 416 k2
FLAG 96 128 ctl
FLAG 960 32 out1
FLAG 1040 32 out2
SYMBOL voltage 96 336 R0
WINDOW 3 -52 118 VLeft 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(5 0 1m 20n 20n 1m 2m)
SYMBOL voltage 96 -128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 44 Left 0
SYMATTR InstName V2
SYMATTR Value 24
SYMATTR SpiceLine Rser=1
SYMBOL res 208 -128 R0
SYMATTR InstName R1
SYMATTR Value 20k
SYMBOL res 304 -128 R0
SYMATTR InstName R2
SYMATTR Value 2k
SYMBOL LED 304 0 R0
SYMATTR InstName D1
SYMATTR Value NSCW100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 480 0 R0
SYMATTR InstName D2
SYMATTR Value NSCW100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 480 -128 R0
SYMATTR InstName R3
SYMATTR Value 2k
SYMBOL npn 256 192 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL res 400 336 R0
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL npn 560 192 M0
SYMATTR InstName Q2
SYMATTR Value BC547C
SYMBOL res 576 336 R0
SYMATTR InstName R5
SYMATTR Value 2k
SYMBOL res 576 112 R0
SYMATTR InstName R6
SYMATTR Value 20k
SYMBOL diode 80 256 R0
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL Optos\\PC817B 832 368 R0
SYMATTR InstName U1
SYMBOL Optos\\PC817B 832 112 R0
SYMATTR InstName U2
SYMBOL res 944 -112 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL res 1024 -112 R0
SYMATTR InstName R8
SYMATTR Value 10k
TEXT 62 488 Left 0 !.tran 10m