Version 4
SHEET 1 880 680
WIRE 480 -368 368 -368
WIRE 368 -288 368 -368
WIRE 480 -240 480 -368
WIRE 368 -176 368 -208
WIRE 192 -80 -48 -80
WIRE 320 -80 192 -80
WIRE 368 -80 368 -96
WIRE 368 -80 320 -80
WIRE 608 -80 368 -80
WIRE 192 -32 192 -80
WIRE -48 -16 -48 -80
WIRE 608 -16 608 -80
WIRE 320 0 320 -80
WIRE -496 16 -560 16
WIRE -368 16 -416 16
WIRE -272 16 -288 16
WIRE -560 64 -560 16
WIRE 192 96 192 48
WIRE 320 96 320 64
WIRE 320 96 192 96
WIRE 416 96 320 96
WIRE 528 96 496 96
WIRE 608 96 608 48
WIRE -272 144 -272 16
WIRE -144 144 -208 144
WIRE -48 144 -48 64
WIRE -48 144 -144 144
WIRE 128 144 -48 144
WIRE -144 208 -144 144
WIRE 528 208 528 96
WIRE 752 208 528 208
WIRE 528 240 528 208
WIRE -496 272 -560 272
WIRE -368 272 -416 272
WIRE -272 272 -272 144
WIRE -272 272 -288 272
WIRE 192 288 192 192
WIRE -560 336 -560 272
WIRE -144 448 -144 288
WIRE 192 448 192 368
WIRE 528 448 528 304
WIRE -1184 -32 0 0
FLAG -144 448 0
FLAG 192 448 0
FLAG 528 448 0
FLAG 608 96 0
FLAG -560 64 0
FLAG -560 336 0
FLAG 480 -240 0
SYMBOL npn 128 96 R0
SYMATTR InstName Q1
SYMATTR Value BC547B
SYMBOL Misc\\EuropeanResistor -64 -32 R0
SYMATTR InstName R1
SYMATTR Value 560E3
SYMBOL Misc\\EuropeanResistor -160 192 R0
SYMATTR InstName R2
SYMATTR Value 100E3
SYMBOL Misc\\EuropeanResistor 176 272 R0
SYMATTR InstName R3
SYMATTR Value 1E3
SYMBOL Misc\\EuropeanResistor 176 -48 R0
SYMATTR InstName R4
SYMATTR Value 6.8E3
SYMBOL Misc\\EuropeanResistor 352 -192 R0
SYMATTR InstName R5
SYMATTR Value 1E3
SYMBOL Misc\\EuropeanResistor 400 112 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R6
SYMATTR Value 1E3
SYMBOL cap 512 240 R0
SYMATTR InstName C1
SYMATTR Value 0.0047E-6
SYMBOL cap 592 -16 R0
SYMATTR InstName C2
SYMATTR Value 0.1E-6
SYMBOL cap 304 0 R0
SYMATTR InstName C3
SYMATTR Value 0.0047E-6
SYMBOL cap -272 160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value 0.001E-6
SYMBOL voltage 368 -192 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 12
SYMBOL voltage -400 16 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value SINE(0 6 172k)
SYMBOL voltage -400 272 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 6 174E3)
SYMBOL Misc\\EuropeanResistor -384 32 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 330E3
SYMBOL Misc\\EuropeanResistor -272 256 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 330E3
TEXT -580 472 Left 2 !.tran 10 startup