Version 4
SHEET 1 880 680
WIRE -9888 -4000 -9984 -4000
WIRE -9808 -4000 -9888 -4000
WIRE -9520 -4000 -9808 -4000
WIRE -10144 -3984 -10160 -3984
WIRE -9888 -3984 -9888 -4000
WIRE -10160 -3968 -10160 -3984
WIRE -9808 -3936 -9808 -4000
WIRE -9888 -3888 -9888 -3904
WIRE -9888 -3888 -9920 -3888
WIRE -9872 -3888 -9888 -3888
WIRE -10160 -3872 -10160 -3888
WIRE -10112 -3872 -10160 -3872
WIRE -10160 -3856 -10160 -3872
WIRE -9984 -3840 -10000 -3840
WIRE -9808 -3808 -9808 -3840
WIRE -9744 -3808 -9808 -3808
WIRE -9808 -3792 -9808 -3808
WIRE -9744 -3792 -9744 -3808
WIRE -10160 -3760 -10160 -3776
WIRE -10144 -3760 -10160 -3760
WIRE -9808 -3696 -9808 -3728
WIRE -9744 -3696 -9744 -3712
WIRE -9744 -3696 -9808 -3696
WIRE -9920 -3680 -9920 -3792
WIRE -9808 -3664 -9808 -3696
WIRE -9792 -3664 -9808 -3664
WIRE -9792 -3648 -9792 -3664
WIRE -10064 -3632 -10096 -3632
WIRE -10000 -3632 -10000 -3840
WIRE -10000 -3632 -10064 -3632
WIRE -9552 -3632 -10000 -3632
WIRE -10096 -3616 -10096 -3632
WIRE -9808 -3584 -9808 -3664
WIRE -9744 -3584 -9808 -3584
WIRE -9744 -3568 -9744 -3584
WIRE -9808 -3552 -9808 -3584
WIRE -10096 -3520 -10096 -3536
WIRE -9920 -3504 -9920 -3600
WIRE -9808 -3472 -9808 -3488
WIRE -9744 -3472 -9744 -3488
WIRE -9744 -3472 -9808 -3472
WIRE -10000 -3456 -10000 -3632
WIRE -9984 -3456 -10000 -3456
WIRE -9808 -3456 -9808 -3472
WIRE -9888 -3408 -9920 -3408
WIRE -9872 -3408 -9888 -3408
WIRE -9888 -3392 -9888 -3408
WIRE -9888 -3296 -9888 -3312
WIRE -9888 -3296 -9984 -3296
WIRE -9808 -3296 -9808 -3360
WIRE -9808 -3296 -9888 -3296
WIRE -9520 -3296 -9808 -3296
FLAG -10096 -3520 0
FLAG -10112 -3872 0
FLAG -9984 -3296 -15V
FLAG -10144 -3984 15V
FLAG -10144 -3760 -15V
FLAG -9984 -4000 15V
FLAG -10064 -3632 in
FLAG -9792 -3648 0
FLAG -9920 -3680 -15V
FLAG -9920 -3600 15V
FLAG -9744 -3808 c3
FLAG -9744 -3472 c4
SYMBOL voltage -10160 -3984 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -65 102 Left 2
WINDOW 0 -58 11 Left 2
SYMATTR Value 15V
SYMATTR InstName V1
SYMBOL voltage -10160 -3872 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 0 -56 26 Left 2
WINDOW 3 -60 94 Left 2
SYMATTR InstName V2
SYMATTR Value 15V
SYMBOL voltage -10096 -3632 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -69 144 Left 2
WINDOW 0 -58 11 Left 2
SYMATTR Value SINE(0 80m 1k 0 0 0)
SYMATTR InstName Vin
SYMBOL cap -9824 -3552 R0
SYMATTR InstName C4
SYMATTR Value 1µ
SYMBOL cap -9824 -3792 R0
WINDOW 0 34 14 Left 2
WINDOW 3 34 49 Left 2
SYMATTR InstName C3
SYMATTR Value 1µ
SYMBOL pnp -9984 -3792 M180
WINDOW 0 53 61 Left 2
WINDOW 3 51 38 Left 2
SYMATTR InstName Q4
SYMATTR Value BC557C
SYMBOL npn -9872 -3936 R0
WINDOW 3 56 54 Left 2
SYMATTR Value BC547C
SYMATTR InstName Q3
SYMBOL Misc\\EuropeanResistor -9904 -4000 R0
WINDOW 0 -21 42 Left 2
WINDOW 3 -24 68 Left 2
SYMATTR InstName R12
SYMATTR Value 47k
SYMBOL npn -9984 -3504 R0
WINDOW 3 51 59 Left 2
WINDOW 0 48 38 Left 2
SYMATTR Value BC547C
SYMATTR InstName Q5
SYMBOL Misc\\EuropeanResistor -9904 -3408 R0
WINDOW 0 -21 42 Left 2
WINDOW 3 -24 68 Left 2
SYMATTR InstName R10
SYMATTR Value 47k
SYMBOL pnp -9872 -3360 M180
WINDOW 0 53 61 Left 2
WINDOW 3 51 38 Left 2
SYMATTR InstName Q6
SYMATTR Value BC557C
SYMBOL Misc\\EuropeanResistor -9728 -3808 M0
WINDOW 0 -21 42 Left 2
WINDOW 3 -30 68 Left 2
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL Misc\\EuropeanResistor -9728 -3584 M0
WINDOW 0 -21 42 Left 2
WINDOW 3 -33 66 Left 2
SYMATTR InstName R2
SYMATTR Value 100k
TEXT -10160 -3464 Left 2 !.tran 0 10m 2m 50µ