Version 4
SHEET 1 2164 1000
WIRE 288 -528 -96 -528
WIRE 656 -528 288 -528
WIRE 784 -528 656 -528
WIRE 1632 -528 784 -528
WIRE 2112 -528 1632 -528
WIRE 1632 -432 1632 -528
WIRE 784 -384 784 -528
WIRE 976 -384 784 -384
WIRE 1296 -384 1072 -384
WIRE 1568 -384 1296 -384
WIRE 784 -272 784 -384
WIRE 832 -272 784 -272
WIRE 992 -272 992 -336
WIRE 992 -272 912 -272
WIRE 288 -192 288 -528
WIRE 656 -192 656 -528
WIRE 1632 -160 1632 -336
WIRE 992 -48 992 -272
WIRE 656 0 656 -112
WIRE 736 0 656 0
WIRE 928 0 816 0
WIRE 1504 32 1440 32
WIRE 1632 32 1632 -80
WIRE 1632 32 1568 32
WIRE 656 48 656 0
WIRE 288 96 288 -112
WIRE 368 96 288 96
WIRE 512 96 448 96
WIRE 592 96 512 96
WIRE 992 96 992 48
WIRE -96 112 -96 -528
WIRE 1440 144 1440 32
WIRE 1440 144 1056 144
WIRE 1488 144 1440 144
WIRE 1632 144 1632 32
WIRE 1632 144 1568 144
WIRE 288 176 288 96
WIRE 512 208 512 96
WIRE 224 224 32 224
WIRE 1440 272 1440 144
WIRE 32 352 32 224
WIRE -96 496 -96 192
WIRE -96 496 -192 496
WIRE 32 496 32 432
WIRE 32 496 -96 496
WIRE 512 496 512 272
WIRE 512 496 32 496
WIRE 1440 496 1440 352
WIRE 1440 496 512 496
WIRE 2112 496 1440 496
WIRE -192 528 -192 496
WIRE 1296 560 1296 -384
WIRE 1296 560 1136 560
WIRE -96 576 -96 496
WIRE 1136 608 1136 560
WIRE 1296 624 1296 560
WIRE 1632 624 1632 144
WIRE 1408 672 1360 672
WIRE 1568 672 1408 672
WIRE 1296 768 1296 720
WIRE 1408 768 1408 672
WIRE 1632 768 1632 720
WIRE -96 944 -96 656
WIRE 288 944 288 272
WIRE 288 944 -96 944
WIRE 656 944 656 144
WIRE 656 944 288 944
WIRE 992 944 992 192
WIRE 992 944 656 944
WIRE 1136 944 1136 688
WIRE 1136 944 992 944
WIRE 1296 944 1296 848
WIRE 1296 944 1136 944
WIRE 1408 944 1408 848
WIRE 1408 944 1296 944
WIRE 1632 944 1632 848
WIRE 1632 944 1408 944
WIRE 2112 944 1632 944
FLAG -192 528 0
SYMBOL voltage -96 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL voltage -96 560 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL pnp 1056 192 R180
SYMATTR InstName Q1
SYMATTR Value 2N3906
SYMBOL npn 928 -48 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL voltage 32 336 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 100m 1e7)
SYMATTR Value2 AC 1.
SYMBOL npn 1360 624 M0
SYMATTR InstName Q4
SYMATTR Value BC547C
SYMBOL res 1280 752 R0
SYMATTR InstName R1
SYMATTR Value 68
SYMBOL voltage 1408 752 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 3
SYMBOL npn 1568 -432 R0
SYMATTR InstName Q5
SYMATTR Value 2N3904
SYMBOL res 1584 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 450
SYMBOL res 1456 368 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R4
SYMATTR Value 50
SYMBOL pnp 224 272 M180
SYMATTR InstName Q6
SYMATTR Value BC557C
SYMBOL pnp 592 144 M180
SYMATTR InstName Q7
SYMATTR Value BC557C
SYMBOL res 640 -208 R0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res 272 -208 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL npn 1568 624 R0
SYMATTR InstName Q8
SYMATTR Value BC547C
SYMBOL res 1616 752 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res 832 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 45
SYMBOL res 464 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 220
SYMBOL cap 496 208 R0
SYMATTR InstName C1
SYMATTR Value 22p
SYMBOL res 1616 -176 R0
SYMATTR InstName R11
SYMATTR Value 220
SYMBOL pmos 1072 -336 M270
SYMATTR InstName M1
SYMATTR Value BSS84
SYMBOL res 928 -288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 1k
SYMBOL cap 1568 16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 22p
SYMBOL res 1120 592 R0
SYMATTR InstName R10
SYMATTR Value 1k
TEXT -130 984 Left 2 !;tran 0 10µ 0 1n
TEXT 8 976 Left 2 !.ac dec 1k 1 1e8