Version 4 SHEET 1 2172 1188 WIRE 528 96 528 80 WIRE 528 96 512 96 WIRE 544 96 528 96 WIRE 544 112 544 96 WIRE -96 144 -192 144 WIRE -496 160 -512 160 WIRE -400 160 -432 160 WIRE -304 160 -400 160 WIRE -976 176 -1008 176 WIRE -896 176 -912 176 WIRE -784 176 -816 176 WIRE -704 176 -720 176 WIRE -192 208 -192 144 WIRE -176 208 -192 208 WIRE 208 208 208 176 WIRE 512 208 512 96 WIRE 544 208 544 192 WIRE -400 224 -400 160 WIRE -384 224 -400 224 WIRE -96 224 -96 144 WIRE -96 224 -112 224 WIRE 16 224 -96 224 WIRE 176 224 16 224 WIRE -304 240 -304 160 WIRE -304 240 -320 240 WIRE -288 240 -304 240 WIRE -192 240 -208 240 WIRE -176 240 -192 240 WIRE 336 240 240 240 WIRE 384 240 336 240 WIRE 496 240 464 240 WIRE 688 240 560 240 WIRE 736 240 688 240 WIRE 896 240 816 240 WIRE 960 240 896 240 WIRE 1024 240 960 240 WIRE -1008 256 -1008 176 WIRE -992 256 -1008 256 WIRE -896 256 -896 176 WIRE -896 256 -912 256 WIRE -864 256 -896 256 WIRE -816 256 -816 176 WIRE -800 256 -816 256 WIRE -704 256 -704 176 WIRE -704 256 -720 256 WIRE -672 256 -704 256 WIRE -608 256 -624 256 WIRE -512 256 -512 160 WIRE -512 256 -528 256 WIRE -496 256 -512 256 WIRE -400 256 -416 256 WIRE -384 256 -400 256 WIRE 176 256 128 256 WIRE -1008 272 -1008 256 WIRE -896 272 -896 256 WIRE -816 272 -816 256 WIRE -704 272 -704 256 WIRE -624 272 -624 256 WIRE 336 272 336 240 WIRE -864 288 -864 256 WIRE -672 288 -672 256 WIRE -400 288 -400 256 WIRE -192 288 -192 240 WIRE 896 288 896 240 WIRE 208 304 208 272 WIRE 528 304 528 272 WIRE 960 304 960 240 WIRE -896 368 -896 352 WIRE -864 368 -864 336 WIRE -864 368 -896 368 WIRE -704 368 -704 352 WIRE -672 368 -672 336 WIRE -672 368 -704 368 WIRE 336 368 336 336 WIRE -1008 384 -1008 352 WIRE -896 384 -896 368 WIRE -816 384 -816 352 WIRE -704 384 -704 368 WIRE -624 384 -624 352 WIRE -400 384 -400 352 WIRE -192 384 -192 352 WIRE 896 400 896 368 WIRE 960 400 960 368 WIRE 960 400 896 400 WIRE 960 448 960 400 WIRE 128 496 128 256 WIRE 176 496 128 496 WIRE 320 496 256 496 WIRE 352 496 320 496 WIRE 448 496 432 496 WIRE 496 496 448 496 WIRE 512 496 496 496 WIRE 608 496 592 496 WIRE 688 496 688 240 WIRE 688 496 608 496 WIRE -544 576 -544 560 WIRE -416 576 -416 560 WIRE 320 592 320 496 WIRE 352 592 320 592 WIRE 448 592 448 496 WIRE 448 592 416 592 WIRE 496 592 496 496 WIRE 528 592 496 592 WIRE 608 592 608 496 WIRE 608 592 592 592 WIRE 688 640 688 496 WIRE -544 688 -544 656 WIRE -416 688 -416 656 WIRE 320 688 320 592 WIRE 352 688 320 688 WIRE 448 688 448 592 WIRE 448 688 416 688 WIRE 480 784 480 752 WIRE 688 800 688 720 WIRE 688 800 512 800 WIRE 128 816 128 496 WIRE 224 816 128 816 WIRE 384 816 304 816 WIRE 448 816 384 816 WIRE 544 832 512 832 WIRE 128 848 128 816 WIRE 688 864 688 800 WIRE 480 880 480 848 WIRE 128 960 128 928 WIRE 384 976 384 816 WIRE 432 976 384 976 WIRE 544 976 544 832 WIRE 544 976 496 976 WIRE 576 976 544 976 WIRE 688 976 688 928 WIRE 688 976 656 976 WIRE 128 1072 128 1040 WIRE 688 1072 688 976 FLAG -416 688 0 FLAG 208 304 +V FLAG -416 560 +V FLAG 208 176 -V FLAG -544 688 0 FLAG -544 560 -V FLAG 480 752 -V FLAG 480 880 +V FLAG 688 1072 0 FLAG 528 80 +V FLAG 528 304 -V FLAG 336 368 -V FLAG 128 1072 0 FLAG 960 448 0 FLAG 1024 240 OUT FLAG 688 240 X1 FLAG 16 224 OUTN IOPIN 16 224 Out FLAG -1008 384 0 FLAG -896 384 0 FLAG -816 384 0 FLAG -704 384 0 FLAG -624 384 0 FLAG -400 384 0 FLAG -192 384 0 SYMBOL voltage -416 560 R0 SYMATTR InstName V1 SYMATTR Value 18 SYMBOL voltage -544 560 R0 SYMATTR InstName V2 SYMATTR Value -18 SYMBOL opamps\\LT1115 208 304 M180 WINDOW 0 8 96 Left 2 WINDOW 3 13 28 Left 2 SYMATTR InstName U1 SYMBOL Opamps\\LT1097 480 880 R180 SYMATTR InstName U3 SYMBOL res 320 800 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 100K SYMBOL res 704 736 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R8 SYMATTR Value 1Meg SYMBOL cap 672 864 R0 SYMATTR InstName C6 SYMATTR Value 1µ SYMBOL cap 496 960 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 1µ SYMBOL res 672 960 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 1Meg SYMBOL opamps\\LT1010 528 176 R0 SYMATTR InstName U2 SYMBOL res 528 96 R0 SYMATTR InstName R4 SYMATTR Value 49.9 SYMBOL diode 320 272 R0 SYMATTR InstName D1 SYMATTR Value 2N4304 SYMBOL res 480 224 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL res 160 512 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R5 SYMATTR Value 499 SYMATTR SpiceLine tol=0.1 SYMBOL res 336 512 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R6 SYMATTR Value 17.8k SYMATTR SpiceLine tol=0.1 SYMBOL res 496 512 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R7 SYMATTR Value 210k SYMATTR SpiceLine tol=0.1 SYMBOL res 720 256 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R13 SYMATTR Value 562 SYMBOL res 912 384 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R14 SYMATTR Value 25k SYMBOL res 144 944 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R10 SYMATTR Value 22.6 SYMATTR SpiceLine tol=0.1 SYMBOL res 144 1056 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R11 SYMATTR Value 210 SYMATTR SpiceLine tol=0.1 SYMBOL cap 352 608 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C2 SYMATTR Value 330p SYMBOL cap 352 704 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C3 SYMATTR Value 3.9n SYMBOL cap 528 608 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C4 SYMATTR Value 15n SYMBOL cap 944 304 R0 SYMATTR InstName C7 SYMATTR Value 1000p SYMBOL Misc\\signal -1008 256 M0 WINDOW 123 -58 111 Left 2 WINDOW 39 -78 251 Left 2 WINDOW 3 -226 200 Left 2 SYMATTR Value2 AC 1m SYMATTR SpiceLine Rser=0 SYMATTR Value SINE(0 5m 1k 0 0 0 0) SYMATTR InstName V3 SYMBOL e -816 256 R0 WINDOW 0 38 66 Left 2 SYMATTR InstName E1 SYMATTR Value 100 SYMBOL res -912 256 R0 WINDOW 3 27 -23 Left 2 WINDOW 0 -36 71 Left 2 SYMATTR Value 353.3 SYMATTR InstName R1 SYMBOL res -896 240 R90 WINDOW 0 -6 91 VBottom 2 WINDOW 3 35 49 VTop 2 SYMATTR InstName R2 SYMATTR Value 3.18k SYMBOL cap -912 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL e -624 256 R0 WINDOW 3 16 96 Left 2 WINDOW 0 56 71 Left 2 SYMATTR Value 75.5 SYMATTR InstName E2 SYMBOL res -720 256 R0 WINDOW 3 21 87 Left 2 WINDOW 0 -2 168 Left 2 SYMATTR Value 1 SYMATTR InstName R15 SYMBOL res -704 240 R90 WINDOW 0 0 88 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R16 SYMATTR Value 7.5k SYMBOL cap -720 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C8 SYMATTR Value 10n SYMBOL Opamps\\opamp -352 176 R0 SYMATTR InstName U4 SYMBOL res -512 240 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 37 41 VTop 2 SYMATTR InstName R17 SYMATTR Value 2.86k SYMBOL res -512 272 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R18 SYMATTR Value 2.86k SYMBOL cap -432 144 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C9 SYMATTR Value 1574p SYMBOL cap -416 288 R0 SYMATTR InstName C10 SYMATTR Value 787p SYMBOL Opamps\\opamp -144 160 R0 SYMATTR InstName U5 SYMBOL res -304 256 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R19 SYMATTR Value 2.86k SYMBOL cap -208 288 R0 SYMATTR InstName C11 SYMATTR Value 580p TEXT -552 816 Left 2 !.model 2N4304 D(Ron=500 Ilimit=2m) TEXT -552 784 Left 2 !.options gminsteps=0 TEXT -552 920 Left 2 !.ac dec 100 10 1000k TEXT -552 952 Left 2 !;tran 10 TEXT 936 656 Left 2 ;Is - Supply Current\nLT1115 max. 11,5 mA\nLT1097 max. 0,8 mA TEXT -552 984 Left 2 !;tran 0 10m 6m 1u TEXT -552 752 Left 2 !.lib opamp.sub TEXT -736 56 Left 5 ;Inverse RIAA TEXT -992 96 Left 2 ;http://www.intactaudio.com/forum/viewtopic.php?t=803&postdays=0&postorder=asc&start=0