Version 4
SHEET 1 880 680
WIRE 656 16 48 16
WIRE 112 80 80 80
WIRE 544 80 336 80
WIRE 656 80 656 16
WIRE 656 80 544 80
WIRE 656 96 656 80
WIRE 80 112 80 80
WIRE 544 112 544 80
WIRE 112 144 -112 144
WIRE 496 144 336 144
WIRE -112 176 -112 144
WIRE 112 208 -32 208
WIRE 496 208 496 144
WIRE 496 208 336 208
WIRE 656 240 656 176
WIRE -32 256 -32 208
WIRE 496 256 496 208
WIRE 544 256 544 192
WIRE 544 256 496 256
WIRE 48 272 48 16
WIRE 112 272 48 272
WIRE 400 272 336 272
WIRE -112 320 -112 256
WIRE 544 336 544 256
WIRE 544 352 544 336
WIRE -32 368 -32 336
WIRE 400 400 400 272
WIRE 544 464 544 416
WIRE 400 496 400 464
FLAG 544 464 0
FLAG 400 496 0
FLAG -32 368 0
FLAG 80 112 0
FLAG 656 240 0
FLAG 544 336 Vc
FLAG -112 320 0
FLAG -32 208 Vout
SYMBOL Misc\\NE555 224 176 R0
SYMATTR InstName U1
SYMBOL res 528 96 R0
SYMATTR InstName R1
SYMATTR Value 4k7
SYMBOL res -48 240 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap 528 352 R0
SYMATTR InstName C1
SYMATTR Value 194µ
SYMBOL cap 384 400 R0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL voltage 656 80 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL voltage -112 160 R0
WINDOW 3 -116 -46 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(5 0 0 0 0 0.1 5)
TEXT 160 344 Left 2 !.tran 20
TEXT 160 376 Left 2 !.ic V(Vc) = 0