Version 4 SHEET 1 1492 2392 WIRE -1520 96 -1552 96 WIRE -1440 96 -1456 96 WIRE -1248 96 -1440 96 WIRE -352 96 -1248 96 WIRE -320 96 -352 96 WIRE -208 96 -240 96 WIRE -96 96 -112 96 WIRE -112 128 -112 96 WIRE -1440 160 -1440 96 WIRE -1072 192 -1104 192 WIRE -976 192 -1008 192 WIRE -832 192 -976 192 WIRE -352 192 -832 192 WIRE -320 192 -352 192 WIRE -208 192 -208 96 WIRE -208 192 -240 192 WIRE -976 240 -976 192 WIRE -96 272 -112 272 WIRE -1312 288 -1312 272 WIRE -656 288 -688 288 WIRE -560 288 -592 288 WIRE -400 288 -560 288 WIRE -320 288 -400 288 WIRE -208 288 -208 192 WIRE -208 288 -240 288 WIRE -112 288 -112 272 WIRE -1840 304 -1872 304 WIRE -1712 304 -1760 304 WIRE -1664 304 -1712 304 WIRE -1552 304 -1552 96 WIRE -1552 304 -1584 304 WIRE -1520 304 -1552 304 WIRE -1440 304 -1440 240 WIRE -1440 304 -1456 304 WIRE -1344 304 -1440 304 WIRE -1248 320 -1248 96 WIRE -1248 320 -1280 320 WIRE -560 320 -560 288 WIRE -1552 336 -1552 304 WIRE -1344 336 -1376 336 WIRE -1376 368 -1376 336 WIRE -1312 368 -1312 352 WIRE -896 368 -896 352 WIRE -1216 384 -1248 384 WIRE -1104 384 -1104 192 WIRE -1104 384 -1136 384 WIRE -1056 384 -1104 384 WIRE -976 384 -976 320 WIRE -976 384 -992 384 WIRE -928 384 -976 384 WIRE -1792 400 -1792 384 WIRE -1104 400 -1104 384 WIRE -832 400 -832 192 WIRE -832 400 -864 400 WIRE -1968 416 -2016 416 WIRE -1872 416 -1872 304 WIRE -1872 416 -1888 416 WIRE -1824 416 -1872 416 WIRE -928 416 -960 416 WIRE -1712 432 -1712 304 WIRE -1712 432 -1760 432 WIRE -1552 432 -1552 416 WIRE -464 432 -464 416 WIRE -1824 448 -1840 448 WIRE -960 448 -960 416 WIRE -896 448 -896 432 WIRE -800 448 -832 448 WIRE -688 448 -688 288 WIRE -688 448 -720 448 WIRE -656 448 -688 448 WIRE -560 448 -560 400 WIRE -560 448 -592 448 WIRE -496 448 -560 448 WIRE -400 464 -400 288 WIRE -400 464 -432 464 WIRE -1840 480 -1840 448 WIRE -688 480 -688 448 WIRE -496 480 -528 480 WIRE -1104 496 -1104 480 WIRE -528 496 -528 480 WIRE -208 496 -208 288 WIRE -160 496 -208 496 WIRE -48 496 -80 496 WIRE -464 512 -464 496 WIRE -1712 528 -1712 432 WIRE -1248 528 -1248 384 WIRE -1248 528 -1712 528 WIRE -832 528 -832 448 WIRE -832 528 -1248 528 WIRE -688 576 -688 560 WIRE -128 592 -128 576 WIRE -2016 608 -2016 416 WIRE -368 608 -2016 608 WIRE -320 608 -368 608 WIRE -208 608 -208 496 WIRE -208 608 -240 608 WIRE -160 608 -208 608 WIRE -2016 624 -2016 608 WIRE -48 624 -48 496 WIRE -48 624 -96 624 WIRE -16 624 -48 624 WIRE -160 640 -176 640 WIRE -176 672 -176 640 WIRE -128 672 -128 656 WIRE -2016 720 -2016 704 FLAG -2016 720 0 FLAG -1376 368 0 FLAG -1552 432 0 FLAG -960 448 0 FLAG -1104 496 0 FLAG -528 496 0 FLAG -176 672 0 FLAG -688 576 0 FLAG -112 208 0 FLAG -112 368 0 FLAG -1840 480 0 FLAG -96 96 +15 FLAG -1312 272 +15 FLAG -896 352 +15 FLAG -464 416 +15 FLAG -1792 384 +15 FLAG -128 576 +15 FLAG -1312 368 -15 FLAG -896 448 -15 FLAG -464 512 -15 FLAG -128 672 -15 FLAG -1792 464 -15 FLAG -96 272 -15 FLAG -352 96 L FLAG -352 192 M FLAG -400 288 H FLAG -368 608 A FLAG -16 624 Out SYMBOL res -1456 144 R0 SYMATTR InstName R2 SYMATTR Value 19292 SYMBOL res -1568 288 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1a SYMATTR Value 9645 SYMBOL cap -1456 288 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 3.3µ SYMBOL cap -1456 80 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 3.3µ SYMBOL voltage -2016 608 R0 WINDOW 123 26 103 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value2 AC 1 SYMATTR InstName V1 SYMATTR Value "" SYMBOL res -1568 320 R0 SYMATTR InstName R1b SYMATTR Value 136 SYMBOL res -992 224 R0 SYMATTR InstName R1 SYMATTR Value 5511 SYMBOL res -1120 368 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 2756 SYMBOL cap -992 368 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 3.3µ SYMBOL cap -1008 176 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 3.3µ SYMBOL res -1120 384 R0 SYMATTR InstName R10 SYMATTR Value 110 SYMBOL res -576 304 R0 SYMATTR InstName R17 SYMATTR Value 2335 SYMBOL res -704 432 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R18 SYMATTR Value 1167 SYMBOL res -224 592 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R19 SYMATTR Value 10k SYMBOL cap -592 432 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C7 SYMATTR Value 3.3µ SYMBOL cap -592 272 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C8 SYMATTR Value 3.3µ SYMBOL res -224 272 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R20 SYMATTR Value 10k SYMBOL res -64 480 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R21 SYMATTR Value 10k SYMBOL res -704 464 R0 SYMATTR InstName R22 SYMATTR Value 122 SYMBOL res -224 176 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL res -224 80 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL voltage -112 112 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 15 SYMBOL voltage -112 384 R180 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 WINDOW 0 21 16 Left 2 SYMATTR InstName V3 SYMATTR Value 15 SYMBOL Opamps\\UniversalOpamp2 -1312 320 R0 SYMATTR InstName U2 SYMBOL Opamps\\UniversalOpamp2 -896 400 R0 SYMATTR InstName U4 SYMBOL Opamps\\UniversalOpamp2 -464 464 R0 SYMATTR InstName U5 SYMBOL Opamps\\UniversalOpamp2 -128 624 R0 SYMATTR InstName U6 SYMBOL res -1744 288 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL Opamps\\UniversalOpamp2 -1792 432 R0 SYMATTR InstName U9 SYMBOL res -1872 400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 10k TEXT -1920 664 Left 2 !.ac dec 100 10 1k