$ 129 32 2.26757369614512E-05 0 5 50 White 2048 2048 true

220 960 928 960 992 0 TL082
v 1024 1024 1024 960 0 0 1 5 0 0 0.5 
v 1024 960 1024 896 0 0 1 5 0 0 0.5 
w 1024 1024 960 1024 0
w 1184 928 1120 928 0
g 1056 1120 1056 1184 0
r 864 992 928 992 0 47000
w 960 960 960 928 2
> x
w 928 992 960 992 0
c 928 992 928 1056 8 1E-07
c 1152 1024 1216 1024 0 1E-07
w 1184 928 1184 864 0
w 1184 864 1024 864 0
w 1024 864 1024 896 0
w 1120 1024 1152 1024 0
w 1120 992 1120 960 0
E 1376 960 1376 1024 0 75
w 1152 1120 1152 1088 0
s 1184 960 1280 960 0 0 false
O 1152 960 1152 928 0 2
> Out
r 864 928 928 928 0 47000
w 928 928 928 992 0
w 864 928 864 992 0
174 1152 1024 1152 1088 0 100000 0.8 Resistance
w 1184 1120 1152 1120 0
w 1184 1056 1184 1120 0
220 544 928 544 992 0 000%252020Hz-20kHz%25204th%2520BPF%2520LM324
w 544 928 512 928 0
w 512 928 512 992 0
s 608 992 800 992 0 0 false
w 800 992 864 992 0
w 608 992 512 992 0
r 1280 960 1280 1024 0 10000
w 1376 1024 1376 1120 0
w 1376 1120 1184 1120 0
w 1280 960 1376 960 0
w 1280 1024 1376 1024 0
r 1152 992 1216 992 0 10000000
w 1216 992 1216 1024 0
w 1216 992 1248 992 0
w 1248 992 1248 1056 0
w 1248 1056 1312 1056 0
w 1312 1056 1312 832 0
w 1312 832 960 832 0
w 960 832 960 928 0
w 1152 960 1120 960 0
w 1152 960 1184 960 0
w 1152 992 1152 1024 0
w 1056 1088 1024 960 0
w 1056 1088 928 1088 0
w 928 1088 928 1056 0
w 1056 1088 1152 1088 0
w 1056 1088 1056 1120 0
r 864 992 864 1056 0 10000000
w 864 1056 864 1088 0
w 864 1088 928 1088 0
o 0 0 0 0 3 1 0.0999999999980972 1 -1.02618503624836 1.32121741856527 E45.2 1 E45.2 0