Version 4
SHEET 1 1308 1708
WIRE 976 -176 -240 -176
WIRE 224 -128 0 -128
WIRE 352 -128 224 -128
WIRE 480 -128 352 -128
WIRE 608 -128 480 -128
WIRE 736 -128 608 -128
WIRE 864 -128 736 -128
WIRE 1248 -128 864 -128
WIRE 0 -96 0 -128
WIRE 224 -96 224 -128
WIRE 352 -96 352 -128
WIRE 480 -96 480 -128
WIRE 608 -96 608 -128
WIRE 736 -96 736 -128
WIRE 864 -96 864 -128
WIRE 0 0 0 -16
WIRE 48 0 0 0
WIRE 0 16 0 0
WIRE 224 96 224 -16
WIRE 352 96 352 -16
WIRE 480 96 480 -16
WIRE 608 96 608 -16
WIRE 736 96 736 -16
WIRE 864 96 864 -16
WIRE 1248 96 1248 -128
WIRE -400 128 -416 128
WIRE -240 128 -240 -176
WIRE 48 144 48 0
WIRE 160 144 128 144
WIRE 288 144 160 144
WIRE 416 144 288 144
WIRE 544 144 416 144
WIRE 672 144 544 144
WIRE 800 144 672 144
WIRE 0 160 0 96
WIRE 0 160 -96 160
WIRE 1248 160 1248 96
WIRE 0 192 0 160
WIRE 48 192 48 144
WIRE 64 192 48 192
WIRE -320 208 -320 128
WIRE -240 208 -240 128
WIRE -240 208 -256 208
WIRE 224 224 224 192
WIRE 352 224 352 192
WIRE 352 224 224 224
WIRE 480 224 480 192
WIRE 480 224 352 224
WIRE 608 224 608 192
WIRE 608 224 480 224
WIRE 736 224 736 192
WIRE 736 224 608 224
WIRE 864 224 864 192
WIRE 864 224 736 224
WIRE -96 240 -96 160
WIRE -64 240 -96 240
WIRE 1248 256 1248 240
WIRE 1264 256 1248 256
WIRE 128 272 128 240
WIRE 224 272 224 224
WIRE 224 272 128 272
WIRE 256 272 224 272
WIRE 384 272 336 272
WIRE 1248 272 1248 256
WIRE -320 304 -320 208
WIRE -288 304 -320 304
WIRE -192 320 -192 304
WIRE -192 320 -224 320
WIRE 0 320 0 288
WIRE 0 320 -192 320
WIRE -320 336 -384 336
WIRE -288 336 -320 336
WIRE 0 352 0 320
WIRE 224 368 128 368
WIRE 256 368 224 368
WIRE 384 368 384 272
WIRE 384 368 336 368
WIRE 928 368 384 368
WIRE 976 368 976 -176
WIRE 976 368 928 368
WIRE -64 400 -96 400
WIRE 128 400 128 368
WIRE 976 400 976 368
WIRE 224 416 224 368
WIRE 352 416 224 416
WIRE 480 416 352 416
WIRE 608 416 480 416
WIRE 736 416 608 416
WIRE 864 416 736 416
WIRE 1248 432 1248 352
WIRE 64 448 48 448
WIRE 224 448 224 416
WIRE 352 448 352 416
WIRE 480 448 480 416
WIRE 608 448 608 416
WIRE 736 448 736 416
WIRE 864 448 864 416
WIRE -96 480 -96 400
WIRE 0 480 0 448
WIRE 0 480 -96 480
WIRE -384 496 -384 336
WIRE 48 496 48 448
WIRE 160 496 128 496
WIRE 288 496 160 496
WIRE 416 496 288 496
WIRE 544 496 416 496
WIRE 672 496 544 496
WIRE 800 496 672 496
WIRE 976 496 976 480
WIRE 0 560 0 480
WIRE 0 656 0 640
WIRE 48 656 48 496
WIRE 48 656 0 656
WIRE 0 688 0 656
WIRE 224 704 224 544
WIRE 352 704 352 544
WIRE 480 704 480 544
WIRE 608 704 608 544
WIRE 736 704 736 544
WIRE 864 704 864 544
WIRE 0 832 0 768
WIRE 224 832 224 784
WIRE 224 832 0 832
WIRE 352 832 352 784
WIRE 352 832 224 832
WIRE 480 832 480 784
WIRE 480 832 352 832
WIRE 608 832 608 784
WIRE 608 832 480 832
WIRE 736 832 736 784
WIRE 736 832 608 832
WIRE 864 832 864 784
WIRE 864 832 736 832
WIRE 1248 832 1248 432
WIRE 1248 832 864 832
FLAG -384 576 0
FLAG -416 128 0
FLAG -320 336 IN
FLAG -192 304 OP
FLAG 976 496 0
FLAG 1264 256 0
FLAG 1248 96 +45
FLAG 1248 432 -45
FLAG -256 288 +45
FLAG -256 352 -45
FLAG 48 144 Q1
FLAG 48 496 Q2
FLAG 928 368 OUT
SYMBOL npn 64 144 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL pnp 160 192 M180
WINDOW 0 30 35 Left 2
WINDOW 3 24 63 Left 2
SYMATTR InstName Q3
SYMATTR Value 2SAR542P
SYMBOL voltage -384 480 M0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V3
SYMATTR Value SINE(0 2 1K)
SYMBOL Opamps\\OP27 -256 256 R0
SYMATTR InstName U1
SYMBOL res -224 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 19k
SYMBOL res -304 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 1k
SYMBOL res 960 384 R0
SYMATTR InstName R19
SYMATTR Value 4
SYMBOL cap -256 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 1p
SYMBOL pnp 288 192 M180
WINDOW 0 30 35 Left 2
WINDOW 3 24 63 Left 2
SYMATTR InstName Q5
SYMATTR Value 2SAR542P
SYMBOL pnp 416 192 M180
WINDOW 0 30 35 Left 2
WINDOW 3 24 63 Left 2
SYMATTR InstName Q7
SYMATTR Value 2SAR542P
SYMBOL pnp 544 192 M180
WINDOW 0 30 35 Left 2
WINDOW 3 24 63 Left 2
SYMATTR InstName Q9
SYMATTR Value 2SAR542P
SYMBOL pnp 64 496 M180
WINDOW 0 54 32 Left 2
WINDOW 3 56 69 Left 2
SYMATTR InstName Q2
SYMATTR Value 2N2907
SYMBOL npn 160 448 R0
WINDOW 0 33 33 Left 2
WINDOW 3 23 68 Left 2
SYMATTR InstName Q4
SYMATTR Value 2SCR542P
SYMBOL voltage 1248 144 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 45
SYMBOL voltage 1248 256 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 45
SYMBOL npn 288 448 R0
WINDOW 0 33 33 Left 2
WINDOW 3 23 68 Left 2
SYMATTR InstName Q6
SYMATTR Value 2SCR542P
SYMBOL npn 416 448 R0
WINDOW 0 33 33 Left 2
WINDOW 3 23 68 Left 2
SYMATTR InstName Q8
SYMATTR Value 2SCR542P
SYMBOL npn 544 448 R0
WINDOW 0 33 33 Left 2
WINDOW 3 23 68 Left 2
SYMATTR InstName Q10
SYMATTR Value 2SCR542P
SYMBOL pnp 672 192 M180
WINDOW 0 30 35 Left 2
WINDOW 3 24 63 Left 2
SYMATTR InstName Q11
SYMATTR Value 2SAR542P
SYMBOL pnp 800 192 M180
WINDOW 0 30 35 Left 2
WINDOW 3 24 63 Left 2
SYMATTR InstName Q12
SYMATTR Value 2SAR542P
SYMBOL npn 672 448 R0
WINDOW 0 33 33 Left 2
WINDOW 3 23 68 Left 2
SYMATTR InstName Q13
SYMATTR Value 2SCR542P
SYMBOL npn 800 448 R0
WINDOW 0 33 33 Left 2
WINDOW 3 23 68 Left 2
SYMATTR InstName Q14
SYMATTR Value 2SCR542P
SYMBOL Misc\\EuropeanResistor 352 256 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 0.18
SYMBOL Misc\\EuropeanResistor 352 352 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 0.18
SYMBOL Misc\\EuropeanResistor 240 0 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R3
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 368 0 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R4
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 496 0 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R5
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 624 0 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R6
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 752 0 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R7
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 880 0 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R8
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 240 800 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R12
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 368 800 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R13
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 496 800 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R14
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 624 800 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R16
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 752 800 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R17
SYMATTR Value 0.22
SYMBOL Misc\\EuropeanResistor 880 800 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R18
SYMATTR Value 0.22
SYMBOL npn -64 192 R0
SYMATTR InstName Q15
SYMATTR Value 2N2222
SYMBOL pnp -64 448 M180
WINDOW 0 54 32 Left 2
WINDOW 3 56 69 Left 2
SYMATTR InstName Q16
SYMATTR Value 2N2907
SYMBOL current 0 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value 4m
SYMBOL current 0 688 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I2
SYMATTR Value 4m
SYMBOL Misc\\EuropeanResistor 16 112 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R11
SYMATTR Value 270
SYMBOL Misc\\EuropeanResistor 16 656 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R15
SYMATTR Value 270
TEXT 448 944 Left 2 !;ac oct 20 1 100meg
TEXT 448 920 Left 2 !.tran 0 20m 15m
TEXT 448 968 Left 2 !;dc temp 0 100 1