Version 4
SHEET 1 5600 13080
WIRE 1872 224 1872 192
WIRE 2192 224 2192 192
WIRE 1792 352 1776 352
WIRE 1872 352 1872 304
WIRE 1872 352 1856 352
WIRE 2112 352 2096 352
WIRE 2192 352 2192 304
WIRE 2192 352 2176 352
WIRE 1872 400 1872 352
WIRE 2064 400 2064 352
WIRE 2192 400 2192 352
WIRE 864 496 848 496
WIRE 976 496 928 496
WIRE 2192 496 2192 480
WIRE 2288 496 2192 496
WIRE 2336 496 2288 496
WIRE 2432 496 2400 496
WIRE 1408 512 1264 512
WIRE 1872 512 1872 480
WIRE 1952 512 1872 512
WIRE 2064 512 2064 480
WIRE 2064 512 2016 512
WIRE 2288 528 2288 496
WIRE 1872 544 1872 512
WIRE 2192 544 2192 496
WIRE 1264 576 1264 512
WIRE 1296 576 1264 576
WIRE 704 592 688 592
WIRE 848 592 848 496
WIRE 848 592 784 592
WIRE 864 592 848 592
WIRE 976 592 976 496
WIRE 976 592 928 592
WIRE 1008 592 976 592
WIRE 1136 592 1072 592
WIRE 1408 592 1408 512
WIRE 1408 592 1360 592
WIRE 1424 592 1408 592
WIRE 1552 592 1504 592
WIRE 1648 592 1552 592
WIRE 1744 592 1712 592
WIRE 1824 592 1744 592
WIRE 2064 592 2064 512
WIRE 2144 592 2064 592
WIRE 1136 608 1136 592
WIRE 1296 608 1136 608
WIRE 2160 640 2064 640
WIRE 2432 640 2432 496
WIRE 1840 656 1840 640
WIRE 1936 656 1840 656
WIRE 2160 656 2160 640
WIRE 2064 672 2064 640
WIRE 848 688 848 592
WIRE 864 688 848 688
WIRE 976 688 976 592
WIRE 976 688 944 688
WIRE 1008 688 976 688
WIRE 1136 688 1136 608
WIRE 1136 688 1088 688
WIRE 1744 688 1744 592
WIRE 1840 688 1840 656
WIRE 2288 736 2288 592
WIRE 848 752 848 688
WIRE 1552 752 1552 592
WIRE 1136 784 1136 688
WIRE 2064 784 2064 736
WIRE 2160 784 2160 736
WIRE 2432 784 2432 720
WIRE 1744 800 1744 768
WIRE 1840 800 1840 768
WIRE 1840 800 1744 800
WIRE 1840 832 1840 800
WIRE 1936 848 1936 656
WIRE 2080 848 1936 848
WIRE 2288 848 2288 816
WIRE 2288 848 2160 848
WIRE 1552 864 1552 832
WIRE 1136 912 1136 864
WIRE 1552 944 1552 928
WIRE 1840 944 1840 912
WIRE 1936 944 1936 848
WIRE 2096 944 1936 944
WIRE 2288 944 2288 848
WIRE 2288 944 2160 944
FLAG 688 592 0
FLAG 2880 -144 0
FLAG 2880 -224 UB
FLAG 3024 -144 0
FLAG 3024 -224 UB2
FLAG 2704 -224 0
FLAG 2544 -144 0
FLAG 2544 -224 +
FLAG 2704 -144 -
FLAG 1840 944 0
FLAG 1872 192 UB
FLAG 2064 352 0
FLAG 2192 192 UB
FLAG 2160 784 0
FLAG 1776 352 0
FLAG 2096 352 0
FLAG 2064 784 0
FLAG 2432 784 0
FLAG 2432 496 out
FLAG 1136 912 0
FLAG 1136 592 in
FLAG 1552 944 0
FLAG 1328 560 +
FLAG 1328 624 -
SYMBOL voltage 800 592 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 -88 56 VBottom 2
WINDOW 123 -60 56 VBottom 2
WINDOW 39 0 0 Left 0
SYMATTR InstName V6
SYMATTR Value SINE(0 1 1k)
SYMATTR Value2 AC 1
SYMBOL voltage 2880 -240 M0
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 260
SYMBOL cap 1712 576 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C10
SYMATTR Value 22nF
SYMBOL voltage 3024 -240 M0
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(300 0 100)
SYMBOL voltage 2704 -240 M0
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage 2544 -240 M0
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 15
SYMBOL Misc\\triode 1872 592 R0
SYMATTR InstName U1
SYMATTR Value NH12AX7
SYMBOL res 1824 672 R0
SYMATTR InstName R3
SYMATTR Value 2k
SYMBOL res 1728 672 R0
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMBOL res 1856 208 R0
SYMATTR InstName R5
SYMATTR Value 20k
SYMBOL Misc\\triode 2192 592 R0
SYMATTR InstName U2
SYMATTR Value NH12AX7
SYMBOL res 2080 496 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R6
SYMATTR Value 1Meg
SYMBOL res 2176 208 R0
SYMATTR InstName R7
SYMATTR Value 1
SYMBOL cap 2016 496 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 22nF
SYMBOL res 2144 640 R0
SYMATTR InstName R8
SYMATTR Value 390
SYMBOL cap 2272 528 R0
SYMATTR InstName C4
SYMATTR Value 1µ
SYMBOL res 2176 832 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 150k
SYMBOL res 2272 720 R0
SYMATTR InstName R10
SYMATTR Value 12k
SYMBOL res 1856 384 R0
SYMATTR InstName R12
SYMATTR Value 100k
SYMBOL cap 1856 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 100µ
SYMBOL cap 2176 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 100µ
SYMBOL res 2176 384 R0
SYMATTR InstName R13
SYMATTR Value 10k
SYMBOL cap 2048 672 R0
SYMATTR InstName C9
SYMATTR Value 1m
SYMBOL res 1824 816 R0
SYMATTR InstName R14
SYMATTR Value 2k
SYMBOL res 2416 624 R0
SYMATTR InstName R1
SYMATTR Value 500k
SYMBOL cap 2400 480 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 470n
SYMBOL cap 2160 928 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 22n
SYMBOL res 960 672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 883k
SYMBOL res 1104 672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R11
SYMATTR Value 75k
SYMBOL res 1120 768 R0
SYMATTR InstName R15
SYMATTR Value 1k
SYMBOL cap 928 576 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 3n3
SYMBOL cap 928 480 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 270p
SYMBOL cap 1072 576 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C11
SYMATTR Value 1n
SYMBOL res 1520 576 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 1k96
SYMBOL res 1536 736 R0
SYMATTR InstName R17
SYMATTR Value 1µ
SYMBOL cap 1536 864 R0
SYMATTR InstName C12
SYMATTR Value 38n
SYMBOL Opamps\\OP27 1328 528 R0
SYMATTR InstName U3
TEXT 1328 376 Left 2 !.include dmtriodep.inc
TEXT 1304 136 Left 2 !.four {freq} V(out)
TEXT 1304 64 Left 2 !.opt plotwinsize=0
TEXT 1304 88 Left 2 !.param freq=1k
TEXT 1304 24 Left 2 !.param fft=2*pi*2**11
TEXT 1304 184 Left 2 !.four {freq} V(in)
TEXT 1304 248 Left 2 !;tran 0 100m 90m 1m
TEXT 1304 280 Left 2 !.ac dec 1000 20 20k
TEXT 1304 320 Left 2 !;noise V(out) V6 oct 100 20 100