Version 4
SHEET 1 972 680
WIRE -64 -64 -112 -64
WIRE 16 -64 -64 -64
WIRE 320 -64 16 -64
WIRE 496 -64 320 -64
WIRE 672 -64 496 -64
WIRE 832 -64 672 -64
WIRE 320 -16 320 -64
WIRE 496 -16 496 -64
WIRE 672 -16 672 -64
WIRE 16 16 16 -64
WIRE 832 64 832 -64
WIRE 496 112 496 64
WIRE 496 112 192 112
WIRE 672 112 672 64
WIRE 736 112 672 112
WIRE 768 112 736 112
WIRE 192 128 192 112
WIRE -112 160 -112 -64
WIRE 496 160 496 112
WIRE 560 160 496 160
WIRE 608 160 560 160
WIRE 320 208 320 64
WIRE 384 208 320 208
WIRE 432 208 384 208
WIRE 832 208 832 160
WIRE 16 256 16 96
WIRE 48 256 16 256
WIRE 96 256 48 256
WIRE 192 256 192 208
WIRE 192 256 160 256
WIRE 224 256 192 256
WIRE 256 256 224 256
WIRE 672 272 672 208
WIRE 832 272 832 208
WIRE 16 304 16 256
WIRE -112 416 -112 240
WIRE 16 416 16 368
WIRE 320 416 320 304
WIRE 496 416 496 256
WIRE 672 416 672 352
WIRE 832 416 832 352
FLAG 16 416 0
FLAG -112 416 0
FLAG 320 416 0
FLAG 496 416 0
FLAG 48 256 C
FLAG 224 256 B1
FLAG 384 208 B2
FLAG -64 -64 Vcc
FLAG 672 416 0
FLAG 832 416 0
FLAG 560 160 B3
FLAG 736 112 B4
FLAG 832 208 Out
SYMBOL cap 0 304 R0
SYMATTR InstName C1
SYMATTR Value 100ľ
SYMBOL res 0 0 R0
SYMATTR InstName R1
SYMATTR Value 47k
SYMBOL npn 256 208 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL voltage -112 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL res 304 -32 R0
SYMATTR InstName R2
SYMATTR Value 22k
SYMBOL npn 432 160 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL res 480 -32 R0
SYMATTR InstName R3
SYMATTR Value 22k
SYMBOL res 176 112 R0
SYMATTR InstName R5
SYMATTR Value 22k
SYMBOL diode 96 272 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL npn 608 112 R0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL res 656 256 R0
SYMATTR InstName R4
SYMATTR Value 68
SYMBOL pnp 768 160 M180
SYMATTR InstName Q4
SYMATTR Value BCW68G
SYMBOL res 656 -32 R0
SYMATTR InstName R6
SYMATTR Value 680
SYMBOL res 816 256 R0
SYMATTR InstName R_Last
SYMATTR Value 10
TEXT -120 -200 Left 0 !.tran 2 startup uic