Version 4 SHEET 1 1776 1300 WIRE 912 -928 832 -928 WIRE 976 -928 912 -928 WIRE 1088 -928 1040 -928 WIRE 1344 -928 1168 -928 WIRE -400 -912 -400 -960 WIRE 912 -880 912 -928 WIRE 208 -832 208 -880 WIRE 208 -832 -64 -832 WIRE 480 -832 208 -832 WIRE -64 -784 -64 -832 WIRE -400 -768 -400 -832 WIRE 480 -768 480 -832 WIRE 912 -768 912 -816 WIRE 144 -672 144 -704 WIRE -160 -656 -192 -656 WIRE -64 -656 -64 -704 WIRE -64 -656 -96 -656 WIRE 112 -656 -64 -656 WIRE 1008 -656 1008 -688 WIRE 224 -640 176 -640 WIRE 256 -640 224 -640 WIRE 368 -640 336 -640 WIRE 976 -640 368 -640 WIRE 1232 -640 1232 -672 WIRE 112 -624 16 -624 WIRE 1104 -624 1040 -624 WIRE 1200 -624 1104 -624 WIRE 976 -608 912 -608 WIRE 1344 -608 1344 -928 WIRE 1344 -608 1264 -608 WIRE 144 -592 144 -608 WIRE 1200 -592 1152 -592 WIRE -192 -576 -192 -656 WIRE -64 -576 -64 -656 WIRE 1008 -576 1008 -592 WIRE 368 -560 368 -640 WIRE 1232 -560 1232 -576 WIRE 832 -528 832 -928 WIRE 912 -496 912 -608 WIRE 960 -496 912 -496 WIRE 1104 -496 1104 -624 WIRE 1104 -496 1040 -496 WIRE 1152 -496 1152 -592 WIRE 1216 -496 1152 -496 WIRE 1344 -496 1344 -608 WIRE 1344 -496 1296 -496 WIRE 16 -480 16 -624 WIRE 80 -480 16 -480 WIRE 224 -480 224 -640 WIRE 224 -480 160 -480 WIRE 16 -448 16 -480 WIRE -192 -432 -192 -496 WIRE 480 -432 480 -688 WIRE 912 -432 912 -496 WIRE 1152 -432 1152 -496 WIRE -64 -416 -64 -496 WIRE 368 -384 368 -496 WIRE 608 -384 544 -384 WIRE 720 -384 688 -384 WIRE 832 -384 832 -464 WIRE 832 -384 720 -384 WIRE 16 -352 16 -368 WIRE 480 -336 432 -336 WIRE 720 -336 720 -384 WIRE 832 -320 832 -384 WIRE 912 -320 912 -352 WIRE 1152 -320 1152 -352 WIRE -192 -272 -192 -352 WIRE 16 -256 16 -288 WIRE 368 -240 368 -288 WIRE 720 -208 720 -256 WIRE 832 -208 832 -256 WIRE 912 -208 912 -256 WIRE 1152 -208 1152 -256 WIRE 912 -96 832 -96 WIRE 976 -96 912 -96 WIRE 1088 -96 1040 -96 WIRE 1344 -96 1168 -96 WIRE 912 -48 912 -96 WIRE -400 -16 -400 -64 WIRE -64 48 -64 0 WIRE 912 64 912 16 WIRE -400 128 -400 64 WIRE 144 160 144 128 WIRE -160 176 -192 176 WIRE -64 176 -64 128 WIRE -64 176 -96 176 WIRE 112 176 -64 176 WIRE 1008 176 1008 144 WIRE 224 192 176 192 WIRE 256 192 224 192 WIRE 368 192 336 192 WIRE 976 192 368 192 WIRE 1232 192 1232 160 WIRE 112 208 16 208 WIRE 1104 208 1040 208 WIRE 1200 208 1104 208 WIRE 368 224 368 192 WIRE 976 224 912 224 WIRE 1344 224 1344 -96 WIRE 1344 224 1264 224 WIRE 144 240 144 224 WIRE 1200 240 1152 240 WIRE -192 256 -192 176 WIRE -64 256 -64 176 WIRE 1008 256 1008 240 WIRE 1232 272 1232 256 WIRE 832 304 832 -96 WIRE 368 320 368 304 WIRE 912 336 912 224 WIRE 960 336 912 336 WIRE 1104 336 1104 208 WIRE 1104 336 1040 336 WIRE 1152 336 1152 240 WIRE 1216 336 1152 336 WIRE 1344 336 1344 224 WIRE 1344 336 1296 336 WIRE 16 352 16 208 WIRE 80 352 16 352 WIRE 224 352 224 192 WIRE 224 352 160 352 WIRE 16 384 16 352 WIRE -192 400 -192 336 WIRE 368 400 368 384 WIRE 464 400 368 400 WIRE 592 400 544 400 WIRE 912 400 912 336 WIRE 1152 400 1152 336 WIRE -64 416 -64 336 WIRE 16 480 16 464 WIRE 496 512 496 480 WIRE 592 528 592 400 WIRE 592 528 528 528 WIRE 672 528 592 528 WIRE 832 528 832 368 WIRE 832 528 752 528 WIRE 368 544 368 400 WIRE 464 544 368 544 WIRE 832 544 832 528 WIRE 912 544 912 480 WIRE 1152 544 1152 480 WIRE -192 560 -192 480 WIRE 592 560 528 560 WIRE 16 576 16 544 WIRE 496 624 496 576 WIRE 592 656 592 560 WIRE 832 656 832 608 WIRE 912 656 912 608 WIRE 1152 656 1152 608 WIRE 368 800 368 768 WIRE 1664 800 1664 768 WIRE 336 816 80 816 WIRE 592 816 592 784 WIRE 1632 816 1376 816 WIRE 464 832 400 832 WIRE 560 832 464 832 WIRE 1744 832 1696 832 WIRE 336 848 272 848 WIRE 720 848 624 848 WIRE 784 848 720 848 WIRE 912 848 864 848 WIRE 1088 848 976 848 WIRE 1632 848 1536 848 WIRE 560 864 512 864 WIRE 368 880 368 864 WIRE 1664 880 1664 864 WIRE 80 896 80 816 WIRE 592 896 592 880 WIRE 272 960 272 848 WIRE 320 960 272 960 WIRE 464 960 464 832 WIRE 464 960 400 960 WIRE 512 960 512 864 WIRE 576 960 512 960 WIRE 720 960 720 848 WIRE 720 960 656 960 WIRE 1376 992 1376 816 WIRE 1536 992 1536 848 WIRE 1600 992 1536 992 WIRE 1744 992 1744 832 WIRE 1744 992 1680 992 WIRE 272 1024 272 960 WIRE 512 1024 512 960 WIRE 1536 1024 1536 992 WIRE 80 1040 80 976 WIRE 1536 1120 1536 1104 WIRE 272 1168 272 1104 WIRE 512 1168 512 1104 WIRE 1376 1216 1376 1072 WIRE 1536 1216 1536 1184 WIRE 272 1280 272 1232 WIRE 512 1280 512 1232 FLAG 144 -704 0 FLAG 1008 -688 0 FLAG 16 -256 0 FLAG -64 -416 0 FLAG -192 -272 0 FLAG 368 -240 0 FLAG -400 -768 0 FLAG -400 -960 V1 FLAG 144 -592 V1 FLAG 208 -880 V1 FLAG 720 -208 0 FLAG 832 -208 0 FLAG 912 -768 0 FLAG 912 -208 0 FLAG 1232 -672 0 FLAG 1152 -208 0 FLAG 1008 -576 V1 FLAG 1232 -560 V1 FLAG 144 128 0 FLAG 1008 144 0 FLAG 16 576 0 FLAG -64 416 0 FLAG -192 560 0 FLAG 144 240 V2 FLAG -64 0 V2 FLAG 832 656 0 FLAG 912 64 0 FLAG 912 656 0 FLAG 1232 160 0 FLAG 1152 656 0 FLAG 1008 256 V2 FLAG 1232 272 V2 FLAG -400 128 0 FLAG -400 -64 V2 FLAG 496 624 0 FLAG 496 480 V2 FLAG 592 656 0 FLAG 368 768 0 FLAG 272 1280 0 FLAG 592 784 0 FLAG 512 1280 0 FLAG 368 880 V2 FLAG 592 896 V2 FLAG 80 1040 0 FLAG 1664 768 0 FLAG 1536 1216 0 FLAG 1664 880 V2 FLAG 1376 1216 0 SYMBOL Opamps\\LT2078 144 -576 M180 SYMATTR InstName U1 SYMBOL Opamps\\LT2078 1008 -560 M180 SYMATTR InstName U2 SYMBOL res 0 -464 R0 SYMATTR InstName R1 SYMATTR Value 2.2k SYMBOL cap 0 -352 R0 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL res 176 -496 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 2.2k SYMBOL res -80 -800 R0 SYMATTR InstName R3 SYMATTR Value 22k SYMBOL res -80 -592 R0 SYMATTR InstName R4 SYMATTR Value 22k SYMBOL cap -96 -672 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 2.2µ SYMBOL voltage -192 -448 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value SINE(0 10m 1k) SYMBOL res 352 -656 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 22k SYMBOL cap 352 -560 R0 SYMATTR InstName C3 SYMATTR Value 220µ SYMBOL npn 432 -384 M0 SYMATTR InstName Q1 SYMATTR Value BC547C SYMBOL res 464 -784 R0 SYMATTR InstName R6 SYMATTR Value 1k SYMBOL voltage -400 -928 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 9 SYMBOL res 704 -400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 10k SYMBOL cap 816 -320 R0 SYMATTR InstName C4 SYMATTR Value 47µ SYMBOL res 704 -352 R0 SYMATTR InstName R8 SYMATTR Value 100k SYMBOL diode 816 -528 R0 SYMATTR InstName D1 SYMATTR Value 1N4148 SYMBOL diode 928 -816 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL res 896 -448 R0 SYMATTR InstName R9 SYMATTR Value 1k SYMBOL cap 896 -320 R0 SYMATTR InstName C5 SYMATTR Value 22µ SYMBOL res 1056 -512 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 10k SYMBOL cap 1040 -944 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 22µ SYMBOL res 1184 -944 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R11 SYMATTR Value 5.6k SYMBOL Opamps\\LT2078 1232 -544 M180 SYMATTR InstName U4 SYMBOL res 1136 -448 R0 SYMATTR InstName R12 SYMATTR Value 2.4k SYMBOL cap 1136 -320 R0 SYMATTR InstName C7 SYMATTR Value 10µ SYMBOL res 1312 -512 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R13 SYMATTR Value 22k SYMBOL npn 544 -432 M0 SYMATTR InstName Q3 SYMATTR Value BC547C SYMBOL voltage -192 -592 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value SINE(0 10m 1) SYMBOL res 0 368 R0 SYMATTR InstName R14 SYMATTR Value 2.2k SYMBOL cap 0 480 R0 SYMATTR InstName C8 SYMATTR Value 10µ SYMBOL res 176 336 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R15 SYMATTR Value 2.2k SYMBOL res -80 32 R0 SYMATTR InstName R16 SYMATTR Value 22k SYMBOL res -80 240 R0 SYMATTR InstName R17 SYMATTR Value 22k SYMBOL cap -96 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 2.2µ SYMBOL voltage -192 384 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V4 SYMATTR Value SINE(0 10m 1k) SYMBOL res 352 176 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R18 SYMATTR Value 22k SYMBOL res 768 512 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R20 SYMATTR Value 47k SYMBOL cap 816 544 R0 SYMATTR InstName C11 SYMATTR Value 47µ SYMBOL diode 816 304 R0 SYMATTR InstName D3 SYMATTR Value 1N4148 SYMBOL diode 928 16 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D4 SYMATTR Value 1N4148 SYMBOL res 896 384 R0 SYMATTR InstName R22 SYMATTR Value 1k SYMBOL cap 896 544 R0 SYMATTR InstName C12 SYMATTR Value 22µ SYMBOL res 1056 320 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R23 SYMATTR Value 10k SYMBOL cap 1040 -112 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C13 SYMATTR Value 22µ SYMBOL res 1184 -112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R24 SYMATTR Value 5.6k SYMBOL res 1136 384 R0 SYMATTR InstName R25 SYMATTR Value 2.4k SYMBOL cap 1136 544 R0 SYMATTR InstName C14 SYMATTR Value 10µ SYMBOL res 1312 320 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R26 SYMATTR Value 22k SYMBOL voltage -192 240 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V5 SYMATTR Value SINE(0 10m 2) SYMBOL voltage -400 -32 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V6 SYMATTR Value 12 SYMBOL cap 352 320 R0 SYMATTR InstName C10 SYMATTR Value 10µ SYMBOL res 560 384 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R21 SYMATTR Value 1meg SYMBOL res 352 208 R0 SYMATTR InstName R19 SYMATTR Value 10k SYMBOL Opamps\\LT1007 144 256 M180 SYMATTR InstName U3 SYMBOL Opamps\\LT1007 1008 272 M180 SYMATTR InstName U5 SYMBOL Opamps\\LT1007 1232 288 M180 SYMATTR InstName U6 SYMBOL Opamps\\LT1022 496 480 M0 SYMATTR InstName U7 SYMBOL res 256 1008 R0 SYMATTR InstName R27 SYMATTR Value 1k SYMBOL cap 256 1168 R0 SYMATTR InstName C15 SYMATTR Value 22µ SYMBOL res 416 944 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R28 SYMATTR Value 10k SYMBOL res 496 1008 R0 SYMATTR InstName R29 SYMATTR Value 2.4k SYMBOL cap 496 1168 R0 SYMATTR InstName C16 SYMATTR Value 10µ SYMBOL res 672 944 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R30 SYMATTR Value 22k SYMBOL Opamps\\LT1007 368 896 M180 SYMATTR InstName U8 SYMBOL Opamps\\LT1007 592 912 M180 SYMATTR InstName U9 SYMBOL voltage 80 880 R0 WINDOW 123 24 124 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V7 SYMATTR Value "" SYMATTR Value2 AC 1 SYMBOL cap 912 864 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C17 SYMATTR Value 22µ SYMBOL res 768 864 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R31 SYMATTR Value 5.6k SYMBOL res 1520 1008 R0 SYMATTR InstName R32 SYMATTR Value 2.2k SYMBOL cap 1520 1120 R0 SYMATTR InstName C18 SYMATTR Value 10µ SYMBOL res 1696 976 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R33 SYMATTR Value 2.2k SYMBOL Opamps\\LT1007 1664 896 M180 SYMATTR InstName U10 SYMBOL voltage 1376 976 R0 WINDOW 123 24 124 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V8 SYMATTR Value "" SYMATTR Value2 AC 1 TEXT 504 -168 Left 2 !.ac oct 500 1 1meg