Version 4 SHEET 1 1304 868 WIRE -16 -112 -144 -112 WIRE -352 -16 -368 -16 WIRE -336 -16 -352 -16 WIRE -272 -16 -288 -16 WIRE -192 -16 -272 -16 WIRE -432 64 -432 -16 WIRE -352 64 -352 -16 WIRE -272 64 -272 -16 WIRE -144 64 -144 48 WIRE -16 64 -16 -32 WIRE -16 64 -144 64 WIRE 384 80 176 80 WIRE 464 80 384 80 WIRE 528 80 464 80 WIRE 720 80 672 80 WIRE 848 80 720 80 WIRE 976 80 848 80 WIRE -16 128 -80 128 WIRE 48 128 -16 128 WIRE -272 144 -432 144 WIRE -192 144 -192 32 WIRE -192 144 -272 144 WIRE -144 144 -144 64 WIRE -144 144 -192 144 WIRE 592 144 592 80 WIRE -80 160 -80 128 WIRE 976 160 976 80 WIRE -192 176 -192 144 WIRE 224 176 144 176 WIRE 112 208 48 208 WIRE 384 208 384 160 WIRE 432 208 384 208 WIRE 464 208 464 160 WIRE 592 208 592 144 WIRE 592 208 464 208 WIRE 720 208 720 160 WIRE 848 208 720 208 WIRE 224 240 144 240 WIRE 304 240 304 176 WIRE 384 256 384 208 WIRE 464 256 464 208 WIRE -80 288 -80 224 WIRE -16 288 -80 288 WIRE 48 288 -16 288 WIRE 720 304 720 208 WIRE 384 336 176 336 WIRE 464 336 384 336 WIRE 528 336 528 160 WIRE 880 336 816 336 WIRE 944 336 944 256 WIRE 944 336 880 336 WIRE 960 336 944 336 WIRE 592 352 592 288 WIRE 432 400 432 272 WIRE 432 400 384 400 WIRE 656 400 528 400 WIRE 816 416 816 400 WIRE 880 416 816 416 WIRE 1024 416 1008 416 WIRE 304 432 304 240 WIRE 592 432 592 352 WIRE 688 432 688 400 WIRE 736 432 688 432 WIRE 880 432 880 416 WIRE 384 480 352 480 WIRE 464 480 464 400 WIRE 880 496 816 496 WIRE 384 528 336 528 WIRE 432 528 432 400 WIRE 464 528 464 480 WIRE 816 528 816 496 WIRE 816 528 560 528 WIRE 944 528 944 336 WIRE 384 544 384 528 WIRE 736 544 736 512 WIRE 384 608 336 608 WIRE 432 608 384 608 WIRE 464 608 432 608 WIRE 560 608 464 608 WIRE 656 608 656 400 WIRE 656 608 560 608 WIRE 688 608 688 512 WIRE 688 608 656 608 WIRE 736 608 688 608 WIRE 864 608 736 608 WIRE 944 608 864 608 FLAG 112 208 0 FLAG 848 160 0 FLAG 1008 496 0 FLAG 1024 416 out IOPIN 1024 416 BiDir FLAG 864 528 0 FLAG 656 208 0 FLAG 656 144 0 FLAG -192 176 0 SYMBOL Misc\\triode 176 128 R0 SYMATTR InstName U1 SYMATTR Value 12ax7a SYMATTR SpiceModel 12ax7a SYMBOL Misc\\triode 176 288 M180 SYMATTR InstName U2 SYMATTR Value 12ax7a SYMATTR SpiceModel 12ax7a SYMBOL res 144 112 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL res 144 272 R90 WINDOW 0 4 35 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R2 SYMATTR Value 1k SYMBOL res 32 192 R0 WINDOW 3 36 56 Left 0 SYMATTR Value 27k SYMATTR InstName R3 SYMBOL res 32 112 R0 WINDOW 0 36 56 Left 0 SYMATTR InstName R4 SYMATTR Value 27k SYMBOL res 320 160 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 -49 53 VTop 0 SYMATTR InstName R5 SYMATTR Value 15k SYMBOL res 320 224 R90 WINDOW 0 82 57 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R6 SYMATTR Value 15k SYMBOL Misc\\triode 304 480 M0 WINDOW 0 -26 -60 Left 0 WINDOW 3 27 -51 Left 0 SYMATTR InstName U3 SYMATTR Value 12ax7a SYMATTR SpiceModel 12ax7a SYMBOL res 400 64 M0 WINDOW 3 21 85 Left 0 SYMATTR Value 1000k SYMATTR InstName R7 SYMBOL res 400 240 M0 SYMATTR InstName R8 SYMATTR Value 1000k SYMBOL res 448 64 R0 WINDOW 3 22 87 Left 0 SYMATTR Value 150k SYMATTR InstName R9 SYMBOL res 448 240 R0 SYMATTR InstName R10 SYMATTR Value 150k SYMBOL res 368 384 R0 SYMATTR InstName R11 SYMATTR Value 1k SYMBOL res 352 512 M0 SYMATTR InstName R12 SYMATTR Value 1k SYMBOL polcap 368 544 R0 WINDOW 3 1 80 Left 0 SYMATTR Value 100µ SYMATTR InstName C2 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=25 Irms=370m Rser=0.24 MTBF=2000 Lser=0 mfg="Nichicon" pn="UPL1E101MPH" type="Al electrolytic" ppPkg=1 SYMBOL res 416 512 R0 WINDOW 0 -14 18 Left 0 WINDOW 3 -5 112 Left 0 SYMATTR InstName R13 SYMATTR Value 1000k SYMBOL voltage -432 48 R0 WINDOW 123 24 94 Left 0 WINDOW 39 -67 203 Left 0 WINDOW 0 -9 57 Left 0 WINDOW 3 -47 132 Left 0 SYMATTR Value2 AC 167m SYMATTR InstName V1 SYMATTR Value SINE(0 167m 1k) SYMBOL cap 480 336 M0 WINDOW 0 22 16 Left 0 WINDOW 3 22 49 Left 0 SYMATTR InstName C3 SYMATTR Value 68n SYMBOL res 448 512 R0 WINDOW 0 23 16 Left 0 WINDOW 3 8 113 Left 0 SYMATTR InstName R14 SYMATTR Value 470k SYMBOL res 560 464 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R15 SYMATTR Value 1k SYMBOL Misc\\triode 592 480 R0 WINDOW 0 13 -57 Left 0 WINDOW 3 -59 -56 Left 0 SYMATTR InstName U4 SYMATTR Value 12ax7a SYMATTR SpiceModel 12ax7a SYMBOL res 544 512 R0 SYMATTR InstName R16 SYMATTR Value 1k SYMBOL Misc\\triode 720 352 R0 WINDOW 0 -46 -68 Left 0 WINDOW 3 11 -68 Left 0 SYMATTR InstName U5 SYMATTR Value 12ax7a SYMATTR SpiceModel 12ax7a SYMBOL res 720 416 R0 WINDOW 3 22 83 Left 0 SYMATTR Value 1k SYMATTR InstName R19 SYMBOL cap 752 608 R180 WINDOW 0 16 54 Left 0 WINDOW 3 11 5 Left 0 SYMATTR InstName C5 SYMATTR Value 47µ SYMATTR SpiceLine V=100 Irms=210m Rser=0.37 MTBF=2000 Lser=0 mfg="Nichicon" pn="UPR2A470MPH" type="Al electrolytic" ppPkg=1 SYMBOL res 992 320 R0 SYMATTR InstName R20 SYMATTR Value 24k SYMBOL voltage 848 64 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 WINDOW 0 40 50 Left 0 WINDOW 3 -16 56 Left 0 SYMATTR InstName V3 SYMATTR Value 200 SYMBOL voltage 864 512 R0 WINDOW 123 0 0 Left 0 WINDOW 39 24 132 Left 0 WINDOW 0 33 41 Left 0 WINDOW 3 -16 58 Left 0 SYMATTR InstName V4 SYMATTR Value 200 SYMBOL cap 544 400 R180 WINDOW 0 23 50 Left 0 WINDOW 3 21 13 Left 0 SYMATTR InstName C6 SYMATTR Value 68n SYMBOL res 512 64 R0 WINDOW 3 19 84 Left 0 SYMATTR Value 470k SYMATTR InstName R21 SYMBOL res 704 64 R0 SYMATTR InstName R22 SYMATTR Value 200k SYMBOL res 864 320 R0 SYMATTR InstName R23 SYMATTR Value 86k SYMBOL res 832 400 M0 WINDOW 0 35 19 Left 0 WINDOW 3 31 48 Left 0 SYMATTR InstName R24 SYMATTR Value 1500k SYMBOL cap 832 336 M0 WINDOW 3 28 48 Left 0 SYMATTR Value 890p SYMATTR InstName C4 SYMBOL cap 864 432 R0 WINDOW 3 22 56 Left 0 SYMATTR Value 3n SYMATTR InstName C7 SYMBOL Misc\\triode 976 208 R0 SYMATTR InstName U6 SYMATTR Value 12ax7a SYMATTR SpiceModel 12ax7a SYMBOL res 944 192 R90 WINDOW 0 -5 49 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R25 SYMATTR Value 1k SYMBOL res 928 512 R0 SYMATTR InstName R26 SYMATTR Value 100k SYMBOL cap 1008 320 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C8 SYMATTR Value 2µ SYMBOL res 704 416 M0 WINDOW 0 -10 -4 Left 0 WINDOW 3 -12 34 Left 0 SYMATTR InstName R27 SYMATTR Value 160k SYMBOL res 688 64 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 30 73 VTop 0 SYMATTR InstName R28 SYMATTR Value 5k SYMBOL polcap 592 192 M90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C9 SYMATTR Value 47µ SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine V=100 Irms=210m Rser=0.37 MTBF=2000 Lser=0 mfg="Nichicon" pn="UPR2A470MPH" type="Al electrolytic" ppPkg=1 SYMBOL cap 656 128 R90 WINDOW 0 -1 -11 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C10 SYMATTR Value 1µ SYMBOL cap 416 208 R0 SYMATTR InstName C1 SYMATTR Value 47n SYMBOL res -336 48 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R29 SYMATTR Value 883k SYMBOL res -256 48 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R30 SYMATTR Value 75k SYMBOL cap -368 -32 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C11 SYMATTR Value 3600p SYMBOL cap -272 -32 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C12 SYMATTR Value 1n SYMBOL res -288 48 R0 SYMATTR InstName R31 SYMATTR Value 604 SYMBOL e -144 -48 R0 SYMATTR InstName E1 SYMATTR Value 1 SYMBOL res -160 -128 R0 SYMATTR InstName R32 SYMATTR Value 1m SYMBOL ind2 -32 -128 R0 SYMATTR InstName L1 SYMATTR Value 300m SYMATTR Type ind SYMBOL ind2 -32 112 R0 SYMATTR InstName L2 SYMATTR Value 300m SYMATTR Type ind SYMBOL res -32 192 R0 SYMATTR InstName R33 SYMATTR Value 300 SYMBOL cap -96 160 R0 SYMATTR InstName C13 SYMATTR Value 250p SYMBOL res 688 336 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R17 SYMATTR Value 1k SYMBOL res 576 192 R0 SYMATTR InstName R18 SYMATTR Value 330k SYMBOL res 992 400 R0 WINDOW 3 56 71 Left 0 SYMATTR InstName R34 SYMATTR Value 10k TEXT -136 376 Left 0 !.tran 0 500m 50m 5µ TEXT -136 512 Left 0 !.inc 12ax7a.inc TEXT -136 416 Left 0 !;noise V(out) V1 oct 10 10 100k TEXT -136 480 Left 0 !.four 1k V(out) TEXT -136 448 Left 0 !;ac oct 10 10 40k TEXT 80 520 Left 0 !.inc 6dj8.inc TEXT -384 -96 Left 0 !K1 L1 L2 1