Version 4
SHEET 1 900 680
WIRE -112 192 -256 192
WIRE 16 192 -112 192
WIRE 240 192 16 192
WIRE 368 192 240 192
WIRE 16 208 16 192
WIRE 368 208 368 192
WIRE -112 256 -112 192
WIRE 240 256 240 192
WIRE 368 288 368 272
WIRE 16 320 16 272
WIRE -112 368 -112 336
WIRE -80 368 -112 368
WIRE -48 368 -80 368
WIRE 240 368 240 336
WIRE 272 368 240 368
WIRE 320 368 272 368
WIRE -256 384 -256 192
WIRE -112 400 -112 368
WIRE 240 400 240 368
WIRE 368 400 368 384
WIRE 16 432 16 416
WIRE 16 448 16 432
WIRE 16 448 -48 448
WIRE 368 448 368 400
WIRE 368 448 304 448
WIRE 16 464 16 448
WIRE 368 464 368 448
WIRE -256 560 -256 464
WIRE -112 560 -112 496
WIRE -112 560 -256 560
WIRE -16 560 -112 560
WIRE 16 560 16 544
WIRE 16 560 -16 560
WIRE 240 560 240 496
WIRE 240 560 16 560
WIRE 368 560 368 544
WIRE 368 560 240 560
WIRE -16 576 -16 560
FLAG -16 576 0
FLAG -80 368 B
FLAG 272 368 G
FLAG 16 432 E
FLAG 368 400 S
SYMBOL npn -48 320 R0
SYMATTR InstName Q1
SYMATTR Value BC547B
SYMBOL npn -48 400 M0
SYMATTR InstName Q2
SYMATTR Value BC547B
SYMBOL npn 304 400 M0
SYMATTR InstName Q3
SYMATTR Value BC547B
SYMBOL nmos 320 288 R0
SYMATTR InstName M1
SYMATTR Value IRLML6246
SYMBOL res 0 448 R0
SYMATTR InstName R1
SYMATTR Value 47
SYMBOL res 352 448 R0
SYMATTR InstName R2
SYMATTR Value 47
SYMBOL res -128 240 R0
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 224 240 R0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL LED 0 208 R0
SYMATTR InstName D1
SYMATTR Value LXHL-BW02
SYMBOL LED 352 208 R0
SYMATTR InstName D2
SYMATTR Value LXHL-BW02
SYMBOL voltage -256 368 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 9
TEXT -290 600 Left 2 !.tran 1