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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 9
Title "VCA-8"
Date "2021-06-04"
Rev "v1.0.0"
Comp "Jan Knipper"
Comment1 "github.com/polykit/vca-8"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Amplifier_Operational:TL072 U3
U 3 1 604BE4CB
P 8400 5000
AR Path="/61358975/604BE4CB" Ref="U3" Part="3"
AR Path="/613C7A22/604BE4CB" Ref="U?" Part="3"
AR Path="/613CB5C1/604BE4CB" Ref="U1" Part="3"
AR Path="/613CBF79/604BE4CB" Ref="U2" Part="3"
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AR Path="/613CE292/604BE4CB" Ref="U6" Part="3"
AR Path="/613CEA01/604BE4CB" Ref="U7" Part="3"
AR Path="/613CF28E/604BE4CB" Ref="U8" Part="3"
F 0 "U1" H 8358 5046 50 0000 L CNN
F 1 "TL072" H 8358 4955 50 0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 8400 5000 50 0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 8400 5000 50 0001 C CNN
3 8400 5000
1 0 0 -1
$EndComp
$Comp
L Amplifier_Operational:TL072 U3
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P 7750 3100
AR Path="/61358975/604BCFDA" Ref="U3" Part="2"
AR Path="/613C7A22/604BCFDA" Ref="U?" Part="2"
AR Path="/613CB5C1/604BCFDA" Ref="U1" Part="2"
AR Path="/613CBF79/604BCFDA" Ref="U2" Part="2"
AR Path="/613CC955/604BCFDA" Ref="U4" Part="2"
AR Path="/613CD2C5/604BCFDA" Ref="U5" Part="2"
AR Path="/613CE292/604BCFDA" Ref="U6" Part="2"
AR Path="/613CEA01/604BCFDA" Ref="U7" Part="2"
AR Path="/613CF28E/604BCFDA" Ref="U8" Part="2"
F 0 "U1" H 7750 2733 50 0000 C CNN
F 1 "TL072" H 7750 2824 50 0000 C CNN
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2 7750 3100
1 0 0 1
$EndComp
$Comp
L Amplifier_Operational:TL072 U3
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AR Path="/613CBF79/604BBAA1" Ref="U2" Part="1"
AR Path="/613CC955/604BBAA1" Ref="U4" Part="1"
AR Path="/613CD2C5/604BBAA1" Ref="U5" Part="1"
AR Path="/613CE292/604BBAA1" Ref="U6" Part="1"
AR Path="/613CEA01/604BBAA1" Ref="U7" Part="1"
AR Path="/613CF28E/604BBAA1" Ref="U8" Part="1"
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1 4100 5150
1 0 0 1
$EndComp
$Comp
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AR Path="/613C7A22/604CD105" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/604CD105" Ref="#PWR0104" Part="1"
AR Path="/613CBF79/604CD105" Ref="#PWR0115" Part="1"
AR Path="/613CC955/604CD105" Ref="#PWR0137" Part="1"
AR Path="/613CD2C5/604CD105" Ref="#PWR0148" Part="1"
AR Path="/613CE292/604CD105" Ref="#PWR0159" Part="1"
AR Path="/613CEA01/604CD105" Ref="#PWR0170" Part="1"
AR Path="/613CF28E/604CD105" Ref="#PWR0181" Part="1"
F 0 "#PWR0104" H 3700 5650 50 0001 C CNN
F 1 "GND" H 3705 5727 50 0000 C CNN
F 2 "" H 3700 5900 50 0001 C CNN
F 3 "" H 3700 5900 50 0001 C CNN
1 3700 5900
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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$Comp
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AR Path="/604A9FBE/604CE626" Ref="R14" Part="1"
AR Path="/61358975/604CE626" Ref="R14" Part="1"
AR Path="/613C7A22/604CE626" Ref="R?" Part="1"
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AR Path="/613CC955/604CE626" Ref="R49" Part="1"
AR Path="/613CD2C5/604CE626" Ref="R64" Part="1"
AR Path="/613CE292/604CE626" Ref="R79" Part="1"
AR Path="/613CEA01/604CE626" Ref="R94" Part="1"
AR Path="/613CF28E/604CE626" Ref="R109" Part="1"
F 0 "R4" V 3893 4650 50 0000 C CNN
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 4030 4650 50 0001 C CNN
F 3 "~" H 4100 4650 50 0001 C CNN
1 4100 4650
0 1 1 0
$EndComp
Wire Wire Line
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Wire Wire Line
3800 4650 3950 4650
Connection ~ 3800 5050
Wire Wire Line
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Wire Wire Line
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$Comp
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AR Path="/6026BB6A/604D025F" Ref="R?" Part="1"
AR Path="/604A9FBE/604D025F" Ref="R16" Part="1"
AR Path="/61358975/604D025F" Ref="R16" Part="1"
AR Path="/613C7A22/604D025F" Ref="R?" Part="1"
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AR Path="/613CE292/604D025F" Ref="R81" Part="1"
AR Path="/613CEA01/604D025F" Ref="R96" Part="1"
AR Path="/613CF28E/604D025F" Ref="R111" Part="1"
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F 3 "~" H 4700 5150 50 0001 C CNN
1 4700 5150
0 1 1 0
$EndComp
Wire Wire Line
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Wire Wire Line
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$Comp
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AR Path="/613C7A22/604D42C8" Ref="R?" Part="1"
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AR Path="/613CC955/604D42C8" Ref="R52" Part="1"
AR Path="/613CD2C5/604D42C8" Ref="R67" Part="1"
AR Path="/613CE292/604D42C8" Ref="R82" Part="1"
AR Path="/613CEA01/604D42C8" Ref="R97" Part="1"
AR Path="/613CF28E/604D42C8" Ref="R112" Part="1"
F 0 "R7" V 4493 5750 50 0000 C CNN
F 1 "22k" V 4584 5750 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 4630 5750 50 0001 C CNN
F 3 "~" H 4700 5750 50 0001 C CNN
1 4700 5750
0 1 1 0
$EndComp
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Wire Wire Line
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$Comp
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P 4400 5750
AR Path="/61358975/604D5308" Ref="LEVEL1" Part="1"
AR Path="/613C7A22/604D5308" Ref="LEVEL?" Part="1"
AR Path="/613CB5C1/604D5308" Ref="LEVEL2" Part="1"
AR Path="/613CBF79/604D5308" Ref="LEVEL3" Part="1"
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AR Path="/613CEA01/604D5308" Ref="LEVEL7" Part="1"
AR Path="/613CF28E/604D5308" Ref="LEVEL8" Part="1"
F 0 "LEVEL2" H 4331 5796 50 0000 R CNN
F 1 "100k" H 4331 5705 50 0000 R CNN
F 2 "Potentiometer_THT:Potentiometer_ACP_CA9-H5_Horizontal" H 4400 5750 50 0001 C CNN
F 3 "~" H 4400 5750 50 0001 C CNN
1 4400 5750
1 0 0 -1
$EndComp
$Comp
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AR Path="/613CF28E/604D6390" Ref="#PWR0182" Part="1"
F 0 "#PWR0105" H 4400 5450 50 0001 C CNN
F 1 "+12V" H 4415 5773 50 0000 C CNN
F 2 "" H 4400 5600 50 0001 C CNN
F 3 "" H 4400 5600 50 0001 C CNN
1 4400 5600
1 0 0 -1
$EndComp
$Comp
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P 4400 5900
AR Path="/61358975/604DC99F" Ref="#PWR0123" Part="1"
AR Path="/613C7A22/604DC99F" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/604DC99F" Ref="#PWR0106" Part="1"
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AR Path="/613CC955/604DC99F" Ref="#PWR0139" Part="1"
AR Path="/613CD2C5/604DC99F" Ref="#PWR0150" Part="1"
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AR Path="/613CEA01/604DC99F" Ref="#PWR0172" Part="1"
AR Path="/613CF28E/604DC99F" Ref="#PWR0183" Part="1"
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F 1 "-12V" H 4415 6073 50 0000 C CNN
F 2 "" H 4400 5900 50 0001 C CNN
F 3 "" H 4400 5900 50 0001 C CNN
1 4400 5900
-1 0 0 1
$EndComp
Wire Wire Line
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Wire Wire Line
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$Comp
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P 5700 5650
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AR Path="/61358975/604E3CD4" Ref="R20" Part="1"
AR Path="/613C7A22/604E3CD4" Ref="R?" Part="1"
AR Path="/613CB5C1/604E3CD4" Ref="R10" Part="1"
AR Path="/613CBF79/604E3CD4" Ref="R40" Part="1"
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AR Path="/613CD2C5/604E3CD4" Ref="R70" Part="1"
AR Path="/613CE292/604E3CD4" Ref="R85" Part="1"
AR Path="/613CEA01/604E3CD4" Ref="R100" Part="1"
AR Path="/613CF28E/604E3CD4" Ref="R115" Part="1"
F 0 "R10" H 5770 5696 50 0000 L CNN
F 1 "10k" H 5770 5605 50 0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 5630 5650 50 0001 C CNN
F 3 "~" H 5700 5650 50 0001 C CNN
1 5700 5650
1 0 0 -1
$EndComp
$Comp
L power:-12V #PWR0124
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AR Path="/61358975/604E4A78" Ref="#PWR0124" Part="1"
AR Path="/613C7A22/604E4A78" Ref="#PWR?" Part="1"
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AR Path="/613CEA01/604E4A78" Ref="#PWR0173" Part="1"
AR Path="/613CF28E/604E4A78" Ref="#PWR0184" Part="1"
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F 1 "-12V" H 5715 6073 50 0000 C CNN
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F 3 "" H 5700 5900 50 0001 C CNN
1 5700 5900
-1 0 0 1
$EndComp
Wire Wire Line
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$Comp
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AR Path="/6026BB6A/604F97FC" Ref="R?" Part="1"
AR Path="/604A9FBE/604F97FC" Ref="R13" Part="1"
AR Path="/61358975/604F97FC" Ref="R13" Part="1"
AR Path="/613C7A22/604F97FC" Ref="R?" Part="1"
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AR Path="/613CBF79/604F97FC" Ref="R33" Part="1"
AR Path="/613CC955/604F97FC" Ref="R48" Part="1"
AR Path="/613CD2C5/604F97FC" Ref="R63" Part="1"
AR Path="/613CE292/604F97FC" Ref="R78" Part="1"
AR Path="/613CEA01/604F97FC" Ref="R93" Part="1"
AR Path="/613CF28E/604F97FC" Ref="R108" Part="1"
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 4030 3600 50 0001 C CNN
F 3 "~" H 4100 3600 50 0001 C CNN
1 4100 3600
0 1 1 0
$EndComp
$Comp
L Device:R R?
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P 4350 3850
AR Path="/6026BB6A/604FA1A6" Ref="R?" Part="1"
AR Path="/604A9FBE/604FA1A6" Ref="R15" Part="1"
AR Path="/61358975/604FA1A6" Ref="R15" Part="1"
AR Path="/613C7A22/604FA1A6" Ref="R?" Part="1"
AR Path="/613CB5C1/604FA1A6" Ref="R5" Part="1"
AR Path="/613CBF79/604FA1A6" Ref="R35" Part="1"
AR Path="/613CC955/604FA1A6" Ref="R50" Part="1"
AR Path="/613CD2C5/604FA1A6" Ref="R65" Part="1"
AR Path="/613CE292/604FA1A6" Ref="R80" Part="1"
AR Path="/613CEA01/604FA1A6" Ref="R95" Part="1"
AR Path="/613CF28E/604FA1A6" Ref="R110" Part="1"
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F 3 "~" H 4350 3850 50 0001 C CNN
1 4350 3850
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Connection ~ 4350 3600
Wire Wire Line
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Wire Wire Line
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$Comp
L Device:R R?
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P 5700 4200
AR Path="/6026BB6A/604FDB10" Ref="R?" Part="1"
AR Path="/604A9FBE/604FDB10" Ref="R19" Part="1"
AR Path="/61358975/604FDB10" Ref="R19" Part="1"
AR Path="/613C7A22/604FDB10" Ref="R?" Part="1"
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AR Path="/613CBF79/604FDB10" Ref="R39" Part="1"
AR Path="/613CC955/604FDB10" Ref="R54" Part="1"
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AR Path="/613CE292/604FDB10" Ref="R84" Part="1"
AR Path="/613CEA01/604FDB10" Ref="R99" Part="1"
AR Path="/613CF28E/604FDB10" Ref="R114" Part="1"
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F 3 "~" H 5700 4200 50 0001 C CNN
1 5700 4200
1 0 0 -1
$EndComp
Wire Wire Line
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Connection ~ 5700 3800
Wire Wire Line
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$Comp
L power:GND #PWR0125
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AR Path="/61358975/60500417" Ref="#PWR0125" Part="1"
AR Path="/613C7A22/60500417" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/60500417" Ref="#PWR0108" Part="1"
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AR Path="/613CEA01/60500417" Ref="#PWR0174" Part="1"
AR Path="/613CF28E/60500417" Ref="#PWR0185" Part="1"
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F 3 "" H 4350 4100 50 0001 C CNN
1 4350 4100
1 0 0 -1
$EndComp
Wire Wire Line
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$Comp
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AR Path="/6026BB6A/60504E30" Ref="R?" Part="1"
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AR Path="/613C7A22/60504E30" Ref="R?" Part="1"
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AR Path="/613CD2C5/60504E30" Ref="R68" Part="1"
AR Path="/613CE292/60504E30" Ref="R83" Part="1"
AR Path="/613CEA01/60504E30" Ref="R98" Part="1"
AR Path="/613CF28E/60504E30" Ref="R113" Part="1"
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F 3 "~" H 5250 2750 50 0001 C CNN
1 5250 2750
1 0 0 -1
$EndComp
$Comp
L Device:R R?
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AR Path="/6026BB6A/60505696" Ref="R?" Part="1"
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AR Path="/61358975/60505696" Ref="R21" Part="1"
AR Path="/613C7A22/60505696" Ref="R?" Part="1"
AR Path="/613CB5C1/60505696" Ref="R26" Part="1"
AR Path="/613CBF79/60505696" Ref="R41" Part="1"
AR Path="/613CC955/60505696" Ref="R56" Part="1"
AR Path="/613CD2C5/60505696" Ref="R71" Part="1"
AR Path="/613CE292/60505696" Ref="R86" Part="1"
AR Path="/613CEA01/60505696" Ref="R101" Part="1"
AR Path="/613CF28E/60505696" Ref="R116" Part="1"
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F 3 "~" H 6150 2750 50 0001 C CNN
1 6150 2750
1 0 0 -1
$EndComp
$Comp
L Device:R_POT OFFSET1
U 1 1 6050BD27
P 5700 2350
AR Path="/61358975/6050BD27" Ref="OFFSET1" Part="1"
AR Path="/613C7A22/6050BD27" Ref="OFFSET?" Part="1"
AR Path="/613CB5C1/6050BD27" Ref="OFFSET2" Part="1"
AR Path="/613CBF79/6050BD27" Ref="OFFSET3" Part="1"
AR Path="/613CC955/6050BD27" Ref="OFFSET4" Part="1"
AR Path="/613CD2C5/6050BD27" Ref="OFFSET5" Part="1"
AR Path="/613CE292/6050BD27" Ref="OFFSET6" Part="1"
AR Path="/613CEA01/6050BD27" Ref="OFFSET7" Part="1"
AR Path="/613CF28E/6050BD27" Ref="OFFSET8" Part="1"
F 0 "OFFSET2" V 5585 2350 50 0000 C CNN
F 1 "1k" V 5494 2350 50 0000 C CNN
F 2 "Potentiometer_THT:Potentiometer_ACP_CA9-H5_Horizontal" H 5700 2350 50 0001 C CNN
F 3 "~" H 5700 2350 50 0001 C CNN
1 5700 2350
0 -1 -1 0
$EndComp
Wire Wire Line
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Wire Wire Line
6150 2350 5850 2350
Wire Wire Line
5550 2350 5250 2350
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
6150 3400 6150 3200
$Comp
L power:+12V #PWR0126
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P 5700 2100
AR Path="/61358975/60512D6A" Ref="#PWR0126" Part="1"
AR Path="/613C7A22/60512D6A" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/60512D6A" Ref="#PWR0109" Part="1"
AR Path="/613CBF79/60512D6A" Ref="#PWR0129" Part="1"
AR Path="/613CC955/60512D6A" Ref="#PWR0142" Part="1"
AR Path="/613CD2C5/60512D6A" Ref="#PWR0153" Part="1"
AR Path="/613CE292/60512D6A" Ref="#PWR0164" Part="1"
AR Path="/613CEA01/60512D6A" Ref="#PWR0175" Part="1"
AR Path="/613CF28E/60512D6A" Ref="#PWR0186" Part="1"
F 0 "#PWR0109" H 5700 1950 50 0001 C CNN
F 1 "+12V" H 5715 2273 50 0000 C CNN
F 2 "" H 5700 2100 50 0001 C CNN
F 3 "" H 5700 2100 50 0001 C CNN
1 5700 2100
1 0 0 -1
$EndComp
Wire Wire Line
5700 2200 5700 2100
$Comp
L Device:R R?
U 1 1 6051983C
P 6900 3000
AR Path="/6026BB6A/6051983C" Ref="R?" Part="1"
AR Path="/604A9FBE/6051983C" Ref="R22" Part="1"
AR Path="/61358975/6051983C" Ref="R22" Part="1"
AR Path="/613C7A22/6051983C" Ref="R?" Part="1"
AR Path="/613CB5C1/6051983C" Ref="R27" Part="1"
AR Path="/613CBF79/6051983C" Ref="R42" Part="1"
AR Path="/613CC955/6051983C" Ref="R57" Part="1"
AR Path="/613CD2C5/6051983C" Ref="R72" Part="1"
AR Path="/613CE292/6051983C" Ref="R87" Part="1"
AR Path="/613CEA01/6051983C" Ref="R102" Part="1"
AR Path="/613CF28E/6051983C" Ref="R117" Part="1"
F 0 "R27" V 6693 3000 50 0000 C CNN
F 1 "10k" V 6784 3000 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 6830 3000 50 0001 C CNN
F 3 "~" H 6900 3000 50 0001 C CNN
1 6900 3000
0 1 1 0
$EndComp
$Comp
L Device:R R?
U 1 1 6051A4E1
P 6900 3200
AR Path="/6026BB6A/6051A4E1" Ref="R?" Part="1"
AR Path="/604A9FBE/6051A4E1" Ref="R23" Part="1"
AR Path="/61358975/6051A4E1" Ref="R23" Part="1"
AR Path="/613C7A22/6051A4E1" Ref="R?" Part="1"
AR Path="/613CB5C1/6051A4E1" Ref="R28" Part="1"
AR Path="/613CBF79/6051A4E1" Ref="R43" Part="1"
AR Path="/613CC955/6051A4E1" Ref="R58" Part="1"
AR Path="/613CD2C5/6051A4E1" Ref="R73" Part="1"
AR Path="/613CE292/6051A4E1" Ref="R88" Part="1"
AR Path="/613CEA01/6051A4E1" Ref="R103" Part="1"
AR Path="/613CF28E/6051A4E1" Ref="R118" Part="1"
F 0 "R28" V 7015 3200 50 0000 C CNN
F 1 "10k" V 7106 3200 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 6830 3200 50 0001 C CNN
F 3 "~" H 6900 3200 50 0001 C CNN
1 6900 3200
0 1 1 0
$EndComp
Wire Wire Line
6750 3000 5250 3000
Connection ~ 5250 3000
Wire Wire Line
5250 3000 5250 2900
Wire Wire Line
6750 3200 6150 3200
Connection ~ 6150 3200
Wire Wire Line
6150 3200 6150 2900
Wire Wire Line
7050 3000 7450 3000
Wire Wire Line
7450 3200 7250 3200
$Comp
L Device:R R?
U 1 1 6052476A
P 7750 2600
AR Path="/6026BB6A/6052476A" Ref="R?" Part="1"
AR Path="/604A9FBE/6052476A" Ref="R25" Part="1"
AR Path="/61358975/6052476A" Ref="R25" Part="1"
AR Path="/613C7A22/6052476A" Ref="R?" Part="1"
AR Path="/613CB5C1/6052476A" Ref="R30" Part="1"
AR Path="/613CBF79/6052476A" Ref="R45" Part="1"
AR Path="/613CC955/6052476A" Ref="R60" Part="1"
AR Path="/613CD2C5/6052476A" Ref="R75" Part="1"
AR Path="/613CE292/6052476A" Ref="R90" Part="1"
AR Path="/613CEA01/6052476A" Ref="R105" Part="1"
AR Path="/613CF28E/6052476A" Ref="R120" Part="1"
F 0 "R30" V 7543 2600 50 0000 C CNN
F 1 "150k" V 7634 2600 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 7680 2600 50 0001 C CNN
F 3 "~" H 7750 2600 50 0001 C CNN
1 7750 2600
0 1 1 0
$EndComp
$Comp
L Device:R R?
U 1 1 6052563D
P 7250 3600
AR Path="/6026BB6A/6052563D" Ref="R?" Part="1"
AR Path="/604A9FBE/6052563D" Ref="R24" Part="1"
AR Path="/61358975/6052563D" Ref="R24" Part="1"
AR Path="/613C7A22/6052563D" Ref="R?" Part="1"
AR Path="/613CB5C1/6052563D" Ref="R29" Part="1"
AR Path="/613CBF79/6052563D" Ref="R44" Part="1"
AR Path="/613CC955/6052563D" Ref="R59" Part="1"
AR Path="/613CD2C5/6052563D" Ref="R74" Part="1"
AR Path="/613CE292/6052563D" Ref="R89" Part="1"
AR Path="/613CEA01/6052563D" Ref="R104" Part="1"
AR Path="/613CF28E/6052563D" Ref="R119" Part="1"
F 0 "R29" V 7043 3600 50 0000 C CNN
F 1 "150k" V 7134 3600 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 7180 3600 50 0001 C CNN
F 3 "~" H 7250 3600 50 0001 C CNN
1 7250 3600
1 0 0 -1
$EndComp
Wire Wire Line
7250 3450 7250 3200
Connection ~ 7250 3200
Wire Wire Line
7250 3200 7050 3200
Wire Wire Line
7600 2600 7450 2600
Wire Wire Line
7450 2600 7450 3000
Connection ~ 7450 3000
Wire Wire Line
7900 2600 8050 2600
Wire Wire Line
8050 2600 8050 3100
$Comp
L power:GND #PWR0127
U 1 1 6052A41D
P 7250 4100
AR Path="/61358975/6052A41D" Ref="#PWR0127" Part="1"
AR Path="/613C7A22/6052A41D" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/6052A41D" Ref="#PWR0110" Part="1"
AR Path="/613CBF79/6052A41D" Ref="#PWR0132" Part="1"
AR Path="/613CC955/6052A41D" Ref="#PWR0143" Part="1"
AR Path="/613CD2C5/6052A41D" Ref="#PWR0154" Part="1"
AR Path="/613CE292/6052A41D" Ref="#PWR0165" Part="1"
AR Path="/613CEA01/6052A41D" Ref="#PWR0176" Part="1"
AR Path="/613CF28E/6052A41D" Ref="#PWR0187" Part="1"
F 0 "#PWR0110" H 7250 3850 50 0001 C CNN
F 1 "GND" H 7255 3927 50 0000 C CNN
F 2 "" H 7250 4100 50 0001 C CNN
F 3 "" H 7250 4100 50 0001 C CNN
1 7250 4100
1 0 0 -1
$EndComp
Wire Wire Line
7250 4100 7250 3750
Wire Wire Line
8300 3100 8050 3100
Connection ~ 8050 3100
Wire Wire Line
2450 3600 3950 3600
Wire Wire Line
8750 5300 8300 5300
Wire Wire Line
8750 5150 8750 5300
$Comp
L Device:C C?
U 1 1 6059CE1B
P 8750 5000
AR Path="/6026BB6A/6059CE1B" Ref="C?" Part="1"
AR Path="/604A9FBE/6059CE1B" Ref="C8" Part="1"
AR Path="/61358975/6059CE1B" Ref="C8" Part="1"
AR Path="/613C7A22/6059CE1B" Ref="C?" Part="1"
AR Path="/613CB5C1/6059CE1B" Ref="C1" Part="1"
AR Path="/613CBF79/6059CE1B" Ref="C2" Part="1"
AR Path="/613CC955/6059CE1B" Ref="C3" Part="1"
AR Path="/613CD2C5/6059CE1B" Ref="C4" Part="1"
AR Path="/613CE292/6059CE1B" Ref="C5" Part="1"
AR Path="/613CEA01/6059CE1B" Ref="C6" Part="1"
AR Path="/613CF28E/6059CE1B" Ref="C7" Part="1"
F 0 "C1" V 8498 5000 50 0000 C CNN
F 1 "100n" V 8589 5000 50 0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 8788 4850 50 0001 C CNN
F 3 "~" H 8750 5000 50 0001 C CNN
1 8750 5000
-1 0 0 1
$EndComp
Wire Wire Line
8750 4850 8750 4700
Wire Wire Line
8750 4700 8300 4700
$Comp
L power:GND #PWR0130
U 1 1 605B5890
P 6600 4100
AR Path="/61358975/605B5890" Ref="#PWR0130" Part="1"
AR Path="/613C7A22/605B5890" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/605B5890" Ref="#PWR0111" Part="1"
AR Path="/613CBF79/605B5890" Ref="#PWR0133" Part="1"
AR Path="/613CC955/605B5890" Ref="#PWR0144" Part="1"
AR Path="/613CD2C5/605B5890" Ref="#PWR0155" Part="1"
AR Path="/613CE292/605B5890" Ref="#PWR0166" Part="1"
AR Path="/613CEA01/605B5890" Ref="#PWR0177" Part="1"
AR Path="/613CF28E/605B5890" Ref="#PWR0188" Part="1"
F 0 "#PWR0111" H 6600 3850 50 0001 C CNN
F 1 "GND" H 6605 3927 50 0000 C CNN
F 2 "" H 6600 4100 50 0001 C CNN
F 3 "" H 6600 4100 50 0001 C CNN
1 6600 4100
1 0 0 -1
$EndComp
Wire Wire Line
6600 4100 6600 3600
Wire Wire Line
6600 3600 6450 3600
$Comp
L power:GND #PWR0131
U 1 1 605D712A
P 5450 5900
AR Path="/61358975/605D712A" Ref="#PWR0131" Part="1"
AR Path="/613C7A22/605D712A" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/605D712A" Ref="#PWR0112" Part="1"
AR Path="/613CBF79/605D712A" Ref="#PWR0134" Part="1"
AR Path="/613CC955/605D712A" Ref="#PWR0145" Part="1"
AR Path="/613CD2C5/605D712A" Ref="#PWR0156" Part="1"
AR Path="/613CE292/605D712A" Ref="#PWR0167" Part="1"
AR Path="/613CEA01/605D712A" Ref="#PWR0178" Part="1"
AR Path="/613CF28E/605D712A" Ref="#PWR0189" Part="1"
F 0 "#PWR0112" H 5450 5650 50 0001 C CNN
F 1 "GND" H 5455 5727 50 0000 C CNN
F 2 "" H 5450 5900 50 0001 C CNN
F 3 "" H 5450 5900 50 0001 C CNN
1 5450 5900
1 0 0 -1
$EndComp
Wire Wire Line
5450 5350 5450 5900
$Comp
L Transistor_BJT:2N3904 Q3
U 1 1 604C023A
P 5350 5150
AR Path="/61358975/604C023A" Ref="Q3" Part="1"
AR Path="/613C7A22/604C023A" Ref="Q?" Part="1"
AR Path="/613CB5C1/604C023A" Ref="Q5" Part="1"
AR Path="/613CBF79/604C023A" Ref="Q8" Part="1"
AR Path="/613CC955/604C023A" Ref="Q11" Part="1"
AR Path="/613CD2C5/604C023A" Ref="Q14" Part="1"
AR Path="/613CE292/604C023A" Ref="Q17" Part="1"
AR Path="/613CEA01/604C023A" Ref="Q20" Part="1"
AR Path="/613CF28E/604C023A" Ref="Q23" Part="1"
F 0 "Q5" H 5540 5104 50 0000 L CNN
F 1 "2N3904" H 5540 5195 50 0000 L CNN
F 2 "Package_TO_SOT_THT:TO-92_Inline_Wide" H 5550 5075 50 0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3903-D.PDF" H 5350 5150 50 0001 L CNN
1 5350 5150
1 0 0 1
$EndComp
$Comp
L Transistor_BJT:2N3904 Q2
U 1 1 604C170B
P 6250 3600
AR Path="/61358975/604C170B" Ref="Q2" Part="1"
AR Path="/613C7A22/604C170B" Ref="Q?" Part="1"
AR Path="/613CB5C1/604C170B" Ref="Q6" Part="1"
AR Path="/613CBF79/604C170B" Ref="Q9" Part="1"
AR Path="/613CC955/604C170B" Ref="Q12" Part="1"
AR Path="/613CD2C5/604C170B" Ref="Q15" Part="1"
AR Path="/613CE292/604C170B" Ref="Q18" Part="1"
AR Path="/613CEA01/604C170B" Ref="Q21" Part="1"
AR Path="/613CF28E/604C170B" Ref="Q24" Part="1"
F 0 "Q6" H 6441 3646 50 0000 L CNN
F 1 "2N3904*" H 6441 3555 50 0000 L CNN
F 2 "Package_TO_SOT_THT:TO-92_Inline_Wide" H 6450 3525 50 0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3903-D.PDF" H 6250 3600 50 0001 L CNN
1 6250 3600
-1 0 0 -1
$EndComp
$Comp
L Transistor_BJT:2N3904 Q1
U 1 1 604C108A
P 5150 3600
AR Path="/61358975/604C108A" Ref="Q1" Part="1"
AR Path="/613C7A22/604C108A" Ref="Q?" Part="1"
AR Path="/613CB5C1/604C108A" Ref="Q4" Part="1"
AR Path="/613CBF79/604C108A" Ref="Q7" Part="1"
AR Path="/613CC955/604C108A" Ref="Q10" Part="1"
AR Path="/613CD2C5/604C108A" Ref="Q13" Part="1"
AR Path="/613CE292/604C108A" Ref="Q16" Part="1"
AR Path="/613CEA01/604C108A" Ref="Q19" Part="1"
AR Path="/613CF28E/604C108A" Ref="Q22" Part="1"
F 0 "Q4" H 5340 3646 50 0000 L CNN
F 1 "2N3904*" H 5340 3555 50 0000 L CNN
F 2 "Package_TO_SOT_THT:TO-92_Inline_Wide" H 5350 3525 50 0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3903-D.PDF" H 5150 3600 50 0001 L CNN
1 5150 3600
1 0 0 -1
$EndComp
Wire Wire Line
5450 4950 5450 4850
Wire Wire Line
5700 4350 5700 4850
Wire Wire Line
5700 4850 5700 5500
Connection ~ 5700 4850
Wire Wire Line
5450 4850 5700 4850
$Comp
L power:+12V #PWR0102
U 1 1 604A0FB2
P 8300 4600
AR Path="/61358975/604A0FB2" Ref="#PWR0102" Part="1"
AR Path="/613C7A22/604A0FB2" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/604A0FB2" Ref="#PWR0113" Part="1"
AR Path="/613CBF79/604A0FB2" Ref="#PWR0135" Part="1"
AR Path="/613CC955/604A0FB2" Ref="#PWR0146" Part="1"
AR Path="/613CD2C5/604A0FB2" Ref="#PWR0157" Part="1"
AR Path="/613CE292/604A0FB2" Ref="#PWR0168" Part="1"
AR Path="/613CEA01/604A0FB2" Ref="#PWR0179" Part="1"
AR Path="/613CF28E/604A0FB2" Ref="#PWR0190" Part="1"
F 0 "#PWR0113" H 8300 4450 50 0001 C CNN
F 1 "+12V" H 8315 4773 50 0000 C CNN
F 2 "" H 8300 4600 50 0001 C CNN
F 3 "" H 8300 4600 50 0001 C CNN
1 8300 4600
1 0 0 -1
$EndComp
Wire Wire Line
8300 4700 8300 4600
Connection ~ 8300 4700
$Comp
L power:-12V #PWR0103
U 1 1 604ADCA8
P 8300 5400
AR Path="/61358975/604ADCA8" Ref="#PWR0103" Part="1"
AR Path="/613C7A22/604ADCA8" Ref="#PWR?" Part="1"
AR Path="/613CB5C1/604ADCA8" Ref="#PWR0114" Part="1"
AR Path="/613CBF79/604ADCA8" Ref="#PWR0136" Part="1"
AR Path="/613CC955/604ADCA8" Ref="#PWR0147" Part="1"
AR Path="/613CD2C5/604ADCA8" Ref="#PWR0158" Part="1"
AR Path="/613CE292/604ADCA8" Ref="#PWR0169" Part="1"
AR Path="/613CEA01/604ADCA8" Ref="#PWR0180" Part="1"
AR Path="/613CF28E/604ADCA8" Ref="#PWR0191" Part="1"
F 0 "#PWR0114" H 8300 5500 50 0001 C CNN
F 1 "-12V" H 8315 5573 50 0000 C CNN
F 2 "" H 8300 5400 50 0001 C CNN
F 3 "" H 8300 5400 50 0001 C CNN
1 8300 5400
-1 0 0 1
$EndComp
Wire Wire Line
8300 5400 8300 5300
Text Notes 7000 6350 0 50 ~ 0
* use matched transistors for optimal results
Text HLabel 8300 3100 2 50 Input ~ 0
OUT
Text HLabel 2450 3600 0 50 Input ~ 0
IN
Text HLabel 2450 5050 0 50 Input ~ 0
CV
Wire Wire Line
2450 5050 3800 5050
$EndSCHEMATC