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EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:interface
LIBS:special
LIBS:complex_hierarchy-cache
EELAYER 25 0
EELAYER END
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$EndComp
$Comp
L LM358N U4
U 2 1 4B3A135C
P 4850 2400
AR Path="/4B3A13A4/4B3A135C" Ref="U4" Part="2"
AR Path="/4B3A1333/4B3A135C" Ref="U3" Part="2"
F 0 "U4" H 4900 2600 60 0000 C CNN
F 1 "LM358N" H 5000 2200 50 0000 C CNN
F 2 "" H 4850 2400 60 0001 C CNN
F 3 "" H 4850 2400 60 0001 C CNN
2 4850 2400
1 0 0 -1
$EndComp
$Comp
L +12V #U035
U 1 1 4B3A135B
P 4750 1950
AR Path="/4B3A13A4/4B3A135B" Ref="#U035" Part="1"
AR Path="/4B3A1333/4B3A135B" Ref="#U051" Part="1"
F 0 "#U035" H 4750 1900 20 0001 C CNN
F 1 "+12V" H 4750 2050 40 0000 C CNN
F 2 "" H 4750 1950 60 0001 C CNN
F 3 "" H 4750 1950 60 0001 C CNN
1 4750 1950
1 0 0 -1
$EndComp
$Comp
L R R17
U 1 1 4B3A1359
P 3950 2000
AR Path="/4B3A13A4/4B3A1359" Ref="R17" Part="1"
AR Path="/4B3A1333/4B3A1359" Ref="R7" Part="1"
F 0 "R17" V 3850 2000 50 0000 C CNN
F 1 "22K" V 3950 2000 50 0000 C CNN
F 2 "" H 3950 2000 60 0001 C CNN
F 3 "" H 3950 2000 60 0001 C CNN
1 3950 2000
0 1 1 0
$EndComp
$Comp
L C C6
U 1 1 4B3A1358
P 4350 1600
AR Path="/4B3A13A4/4B3A1358" Ref="C6" Part="1"
AR Path="/4B3A1333/4B3A1358" Ref="C3" Part="1"
F 0 "C6" V 4200 1600 50 0000 C CNN
F 1 "15nF" V 4500 1600 50 0000 C CNN
F 2 "" H 4350 1600 60 0001 C CNN
F 3 "" H 4350 1600 60 0001 C CNN
1 4350 1600
0 1 1 0
$EndComp
Text Notes 3100 2900 0 60 ~ 0
Filter:\nFc =1000Hz
$Comp
L POT RV2
U 1 1 4B3A1357
P 5850 6400
AR Path="/4B3A13A4/4B3A1357" Ref="RV2" Part="1"
AR Path="/4B3A1333/4B3A1357" Ref="RV1" Part="1"
F 0 "RV2" H 5850 6300 50 0000 C CNN
F 1 "4,7K" H 5850 6400 50 0000 C CNN
F 2 "" H 5850 6400 60 0001 C CNN
F 3 "" H 5850 6400 60 0001 C CNN
1 5850 6400
1 0 0 -1
$EndComp
Wire Wire Line
7900 4200 7900 4300
Wire Wire Line
8600 4450 8900 4450
Wire Wire Line
8900 4450 9200 4450
Wire Wire Line
8600 4450 8600 4600
Wire Wire Line
8600 4150 9100 4150
Wire Wire Line
9100 4150 9200 4150
Wire Wire Line
8600 4150 8600 3900
Wire Wire Line
2850 2550 2850 2500
Wire Wire Line
4350 2000 4350 2200
Wire Wire Line
4350 2200 4350 2300
Wire Wire Line
4350 2200 4000 2200
Wire Wire Line
4000 2200 4000 2400
Connection ~ 4350 2200
Wire Wire Line
4000 2850 4000 2800
Wire Wire Line
4750 2850 4750 2800
Wire Wire Line
4750 1950 4750 2000
Wire Wire Line
7300 2300 7300 2250
Wire Wire Line
7900 2450 7900 2500
Wire Wire Line
8300 4800 8100 4800
Wire Wire Line
8100 4800 7900 4800
Connection ~ 7900 4800
Wire Wire Line
8100 5950 8100 6000
Wire Wire Line
6300 4950 6300 5000
Wire Wire Line
6300 5850 6300 5800
Wire Wire Line
4850 6400 4900 6400
$EndSCHEMATC
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