Version 4
SHEET 1 2152 808
WIRE -2240 192 -2464 192
WIRE -1808 192 -2240 192
WIRE -1312 192 -1808 192
WIRE -1776 256 -2080 256
WIRE -1280 256 -1584 256
WIRE -2464 272 -2464 192
WIRE -2240 272 -2240 192
WIRE -2080 304 -2080 256
WIRE -1584 304 -1584 256
WIRE -1360 352 -1376 352
WIRE -1856 368 -1872 368
WIRE -1856 384 -1856 368
WIRE -1360 384 -1360 352
WIRE -2384 400 -2400 400
WIRE -2240 400 -2240 352
WIRE -2240 400 -2320 400
WIRE -2192 400 -2240 400
WIRE -2080 400 -2080 368
WIRE -2080 400 -2112 400
WIRE -2048 400 -2080 400
WIRE -1952 400 -1968 400
WIRE -1888 400 -1952 400
WIRE -1584 400 -1584 368
WIRE -1584 400 -1616 400
WIRE -1552 400 -1584 400
WIRE -1456 400 -1472 400
WIRE -1392 400 -1456 400
WIRE -1776 416 -1776 256
WIRE -1776 416 -1824 416
WIRE -1696 416 -1696 400
WIRE -1696 416 -1776 416
WIRE -1280 416 -1280 256
WIRE -1280 416 -1328 416
WIRE -1088 416 -1280 416
WIRE -1888 432 -1904 432
WIRE -1392 432 -1408 432
WIRE -1856 464 -1856 448
WIRE -1808 464 -1808 192
WIRE -1808 464 -1856 464
WIRE -1360 464 -1360 448
WIRE -1312 464 -1312 192
WIRE -1312 464 -1360 464
WIRE -2240 480 -2240 400
WIRE -1952 480 -1952 400
WIRE -1904 480 -1904 432
WIRE -1776 480 -1776 416
WIRE -1776 480 -1904 480
WIRE -1456 480 -1456 400
WIRE -1408 480 -1408 432
WIRE -1280 480 -1280 416
WIRE -1280 480 -1408 480
WIRE -2400 496 -2400 400
WIRE -2464 672 -2464 352
WIRE -2400 672 -2400 576
WIRE -2400 672 -2464 672
WIRE -2352 672 -2400 672
WIRE -2240 672 -2240 560
WIRE -2240 672 -2352 672
WIRE -1952 672 -1952 544
WIRE -1952 672 -2240 672
WIRE -1872 672 -1872 368
WIRE -1872 672 -1952 672
WIRE -1456 672 -1456 544
WIRE -1456 672 -1872 672
WIRE -1376 672 -1376 352
WIRE -1376 672 -1456 672
WIRE -2352 768 -2352 672
FLAG -2352 768 0
SYMBOL LM324 -1856 480 M180
SYMATTR InstName U1
SYMBOL res -1952 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 4.7k
SYMBOL res -2096 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 4.7k
SYMBOL cap -2096 304 R0
SYMATTR InstName C1
SYMATTR Value 2.2n
SYMBOL cap -1968 480 R0
SYMATTR InstName C2
SYMATTR Value 2.2n
SYMBOL voltage -2400 480 R0
WINDOW 123 24 124 Left 2
WINDOW 39 24 152 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value SINE(0 1 123k)
SYMBOL voltage -2464 256 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL res -1456 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 4.7k
SYMBOL res -1600 384 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 4.7k
SYMBOL cap -1600 304 R0
SYMATTR InstName C4
SYMATTR Value 2.2n
SYMBOL cap -1472 480 R0
SYMATTR InstName C5
SYMATTR Value 2.2n
SYMBOL LM324 -1360 480 M180
SYMATTR InstName U2
SYMBOL cap -2320 384 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 100n
SYMBOL res -2256 464 R0
SYMATTR InstName R5
SYMATTR Value 42k
SYMBOL res -2256 256 R0
SYMATTR InstName R6
SYMATTR Value 42k
TEXT -2496 792 Left 2 !.ac lin 1meg 1k 100k