Diamondback_Terrapin.sch-bak
EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A 11000 8500
encoding utf-8
Sheet 1 1
Title "Diamondback Tarrapin (DT+)"
Date "2020-03-29"
Rev "1"
Comp "DrT Labs"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L power:GND #PWR01
U 1 1 5E79A61C
P 1300 4950
F 0 "#PWR01" H 1300 4700 50  0001 C CNN
F 1 "GND" H 1305 4777 50  0000 C CNN
F 2 "" H 1300 4950 50  0001 C CNN
F 3 "" H 1300 4950 50  0001 C CNN
	1    1300 4950
	1    0    0    -1  
$EndComp
$Comp
L Device:R_POT Mix1
U 1 1 5E819AF3
P 7350 2750
F 0 "Mix1" V 7143 2750 50  0000 C CNN
F 1 "B10K" V 7234 2750 50  0000 C CNN
F 2 "Potentiometer_THT:Potentiometer_Vishay_248GJ-249GJ_Single_Vertical" H 7350 2750 50  0001 C CNN
F 3 "~" H 7350 2750 50  0001 C CNN
	1    7350 2750
	1    0    0    1   
$EndComp
$Comp
L Device:CP1 C2
U 1 1 5E872D13
P 1700 1000
F 0 "C2" V 1952 1000 50  0000 C CNN
F 1 "1 uf" V 1861 1000 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D4.0mm_P2.00mm" H 1700 1000 50  0001 C CNN
F 3 "~" H 1700 1000 50  0001 C CNN
	1    1700 1000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R3
U 1 1 5E87443C
P 2100 1000
F 0 "R3" H 2170 1046 50  0000 L CNN
F 1 "220 K" H 2170 955 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 2030 1000 50  0001 C CNN
F 3 "~" H 2100 1000 50  0001 C CNN
	1    2100 1000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R4
U 1 1 5E874721
P 2100 1300
F 0 "R4" H 2170 1346 50  0000 L CNN
F 1 "220 K" H 2170 1255 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 2030 1300 50  0001 C CNN
F 3 "~" H 2100 1300 50  0001 C CNN
	1    2100 1300
	1    0    0    -1  
$EndComp
Wire Wire Line
	2100 850  1700 850 
Connection ~ 1700 850 
$Comp
L power:GND #PWR02
U 1 1 5E87A017
P 2100 1450
F 0 "#PWR02" H 2100 1200 50  0001 C CNN
F 1 "GND" H 2105 1277 50  0000 C CNN
F 2 "" H 2100 1450 50  0001 C CNN
F 3 "" H 2100 1450 50  0001 C CNN
	1    2100 1450
	1    0    0    -1  
$EndComp
Connection ~ 2100 1450
Connection ~ 2100 850 
$Comp
L power:PWR_FLAG #FLG01
U 1 1 5E897785
P 1450 700
F 0 "#FLG01" H 1450 775 50  0001 C CNN
F 1 "PWR_FLAG" H 1450 873 50  0000 C CNN
F 2 "" H 1450 700 50  0001 C CNN
F 3 "~" H 1450 700 50  0001 C CNN
	1    1450 700 
	1    0    0    -1  
$EndComp
Wire Wire Line
	1450 700  1450 850 
$Comp
L power:PWR_FLAG #FLG02
U 1 1 5E89CB0B
P 1450 1500
F 0 "#FLG02" H 1450 1575 50  0001 C CNN
F 1 "PWR_FLAG" H 1450 1673 50  0000 C CNN
F 2 "" H 1450 1500 50  0001 C CNN
F 3 "~" H 1450 1500 50  0001 C CNN
	1    1450 1500
	-1   0    0    1   
$EndComp
Wire Wire Line
	1450 1500 1450 1450
$Comp
L Mechanical:MountingHole_Pad V2
U 1 1 5E92F07B
P 1200 1450
F 0 "V2" V 1345 1453 50  0001 C CNN
F 1 "V-" V 1345 1453 50  0000 C CNN
F 2 "Connector:Offboard_Pad" H 1200 1450 50  0001 C CNN
F 3 "~" H 1200 1450 50  0001 C CNN
	1    1200 1450
	0    -1   -1   0   
$EndComp
Connection ~ 1450 1450
Wire Wire Line
	1300 1450 1450 1450
Connection ~ 1450 850 
$Comp
L Device:C C1
U 1 1 5E943325
P 1450 3200
F 0 "C1" V 1198 3200 50  0000 C CNN
F 1 "0.001 uf" V 1289 3200 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 1488 3050 50  0001 C CNN
F 3 "~" H 1450 3200 50  0001 C CNN
	1    1450 3200
	-1   0    0    1   
$EndComp
$Comp
L Device:R_POT +Gain1
U 1 1 5E9C96F2
P 4550 2500
F 0 "+Gain1" V 4343 2500 50  0000 C CNN
F 1 "A1M" V 4434 2500 50  0000 C CNN
F 2 "Potentiometer_THT:Potentiometer_Vishay_248GJ-249GJ_Single_Vertical" H 4550 2500 50  0001 C CNN
F 3 "~" H 4550 2500 50  0001 C CNN
	1    4550 2500
	0    1    1    0   
$EndComp
Wire Wire Line
	4900 2500 4700 2500
Wire Wire Line
	4250 1950 4250 2500
Wire Wire Line
	4250 2500 4400 2500
$Comp
L Device:C C4
U 1 1 5E9D25DC
P 3900 2350
F 0 "C4" V 3648 2350 50  0000 C CNN
F 1 "0.22 uf" V 3739 2350 50  0000 C CNN
F 2 "Capacitor_THT:C_Rect_L7.0mm_W2.0mm_P5.00mm" H 3938 2200 50  0001 C CNN
F 3 "~" H 3900 2350 50  0001 C CNN
	1    3900 2350
	-1   0    0    1   
$EndComp
$Comp
L Device:R R6
U 1 1 5E9D3E3B
P 3900 2650
F 0 "R6" V 3693 2650 50  0000 C CNN
F 1 "1 K" V 3784 2650 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 3830 2650 50  0001 C CNN
F 3 "~" H 3900 2650 50  0001 C CNN
	1    3900 2650
	-1   0    0    1   
$EndComp
Wire Wire Line
	3900 2200 3900 1950
Wire Wire Line
	3900 1950 4250 1950
Wire Wire Line
	1300 4550 1300 4950
Connection ~ 1300 4550
$Comp
L Device:R_POT 8avGain1
U 1 1 5EA19EFD
P 4600 4150
F 0 "8avGain1" V 4393 4150 50  0000 C CNN
F 1 "A1M" V 4484 4150 50  0000 C CNN
F 2 "Potentiometer_THT:Potentiometer_Vishay_248GJ-249GJ_Single_Vertical" H 4600 4150 50  0001 C CNN
F 3 "~" H 4600 4150 50  0001 C CNN
	1    4600 4150
	0    1    1    0   
$EndComp
Wire Wire Line
	4350 4150 4450 4150
Wire Wire Line
	4750 4150 4950 4150
$Comp
L Device:CP1 C8
U 1 1 5EA4F354
P 5150 3650
F 0 "C8" V 5402 3650 50  0000 C CNN
F 1 "10 uf" V 5311 3650 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D4.0mm_P2.00mm" H 5150 3650 50  0001 C CNN
F 3 "~" H 5150 3650 50  0001 C CNN
	1    5150 3650
	0    -1   -1   0   
$EndComp
$Comp
L Device:D D1
U 1 1 5EA52FB1
P 5450 3650
F 0 "D1" V 5404 3729 50  0000 L CNN
F 1 "1N270" V 5495 3729 50  0000 L CNN
F 2 "Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal" H 5450 3650 50  0001 C CNN
F 3 "~" H 5450 3650 50  0001 C CNN
	1    5450 3650
	1    0    0    -1  
$EndComp
Connection ~ 5300 3650
Wire Wire Line
	5300 4550 4000 4550
Connection ~ 4000 4550
$Comp
L Device:R R11
U 1 1 5EA82462
P 5950 2750
F 0 "R11" V 5743 2750 50  0000 C CNN
F 1 "10 k" V 5834 2750 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 5880 2750 50  0001 C CNN
F 3 "~" H 5950 2750 50  0001 C CNN
	1    5950 2750
	0    1    1    0   
$EndComp
$Comp
L Device:R R12
U 1 1 5EA82DD7
P 6300 2150
F 0 "R12" V 6093 2150 50  0000 C CNN
F 1 "4.7 k" V 6184 2150 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 6230 2150 50  0001 C CNN
F 3 "~" H 6300 2150 50  0001 C CNN
	1    6300 2150
	-1   0    0    1   
$EndComp
Wire Wire Line
	6300 2300 6300 2550
Wire Wire Line
	6300 2550 6400 2550
Wire Wire Line
	6100 2750 6250 2750
Wire Wire Line
	7000 2650 7000 3050
Wire Wire Line
	6250 2750 6250 3050
Connection ~ 6250 2750
Wire Wire Line
	6250 2750 6400 2750
Wire Wire Line
	4950 2750 5800 2750
$Comp
L Device:CP1 C9
U 1 1 5EAA6502
P 6050 3650
F 0 "C9" V 6302 3650 50  0000 C CNN
F 1 "10 uf" V 6211 3650 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D4.0mm_P2.00mm" H 6050 3650 50  0001 C CNN
F 3 "~" H 6050 3650 50  0001 C CNN
	1    6050 3650
	0    1    1    0   
$EndComp
$Comp
L Device:D D2
U 1 1 5EAA6BF1
P 5750 3650
F 0 "D2" V 5704 3729 50  0000 L CNN
F 1 "1N270" V 5795 3729 50  0000 L CNN
F 2 "Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal" H 5750 3650 50  0001 C CNN
F 3 "~" H 5750 3650 50  0001 C CNN
	1    5750 3650
	-1   0    0    1   
$EndComp
$Comp
L Device:R R9
U 1 1 5EAC1F9B
P 5600 3200
F 0 "R9" V 5393 3200 50  0000 C CNN
F 1 "100 k" V 5484 3200 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 5530 3200 50  0001 C CNN
F 3 "~" H 5600 3200 50  0001 C CNN
	1    5600 3200
	-1   0    0    1   
$EndComp
Connection ~ 5600 3650
Wire Wire Line
	6200 3650 7000 3650
Connection ~ 7000 3050
$Comp
L Device:R R10
U 1 1 5EADB182
P 5900 4200
F 0 "R10" V 5693 4200 50  0000 C CNN
F 1 "22 K" V 5784 4200 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 5830 4200 50  0001 C CNN
F 3 "~" H 5900 4200 50  0001 C CNN
	1    5900 4200
	-1   0    0    1   
$EndComp
$Comp
L Device:R R8
U 1 1 5EA5193B
P 5300 4200
F 0 "R8" V 5093 4200 50  0000 C CNN
F 1 "22 K" V 5184 4200 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 5230 4200 50  0001 C CNN
F 3 "~" H 5300 4200 50  0001 C CNN
	1    5300 4200
	-1   0    0    1   
$EndComp
Wire Wire Line
	5300 3650 5300 4050
Wire Wire Line
	5300 4350 5300 4550
Wire Wire Line
	5900 3650 5900 4050
Connection ~ 5900 3650
Wire Wire Line
	5900 4350 5900 4550
Wire Wire Line
	5900 4550 5300 4550
Connection ~ 5300 4550
$Comp
L Device:R R17
U 1 1 5EB017A0
P 7750 3100
F 0 "R17" V 7543 3100 50  0000 C CNN
F 1 "15 K" V 7634 3100 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 7680 3100 50  0001 C CNN
F 3 "~" H 7750 3100 50  0001 C CNN
	1    7750 3100
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R16
U 1 1 5EB01E4E
P 7750 2400
F 0 "R16" V 7543 2400 50  0000 C CNN
F 1 "15 K" V 7634 2400 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 7680 2400 50  0001 C CNN
F 3 "~" H 7750 2400 50  0001 C CNN
	1    7750 2400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7350 2900 7350 3100
$Comp
L Device:CP1 C10
U 1 1 5EB0E3D8
P 7350 1950
F 0 "C10" V 7602 1950 50  0000 C CNN
F 1 "1 uf" V 7511 1950 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D4.0mm_P2.00mm" H 7350 1950 50  0001 C CNN
F 3 "~" H 7350 1950 50  0001 C CNN
	1    7350 1950
	1    0    0    -1  
$EndComp
$Comp
L Device:C C11
U 1 1 5EB0ED9C
P 7350 3550
F 0 "C11" V 7602 3550 50  0000 C CNN
F 1 "0.47 uF" V 7511 3550 50  0000 C CNN
F 2 "Capacitor_THT:C_Rect_L7.0mm_W4.5mm_P5.00mm" H 7350 3550 50  0001 C CNN
F 3 "~" H 7350 3550 50  0001 C CNN
	1    7350 3550
	-1   0    0    1   
$EndComp
$Comp
L Device:R R14
U 1 1 5EB1DEF6
P 7350 2250
F 0 "R14" V 7143 2250 50  0000 C CNN
F 1 "15 K" V 7234 2250 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 7280 2250 50  0001 C CNN
F 3 "~" H 7350 2250 50  0001 C CNN
	1    7350 2250
	-1   0    0    1   
$EndComp
Wire Wire Line
	7350 2400 7350 2600
Wire Wire Line
	7350 2400 7600 2400
Wire Wire Line
	7350 3100 7600 3100
Connection ~ 5900 4550
Wire Wire Line
	7900 2400 7900 2550
Connection ~ 7900 2550
Wire Wire Line
	7900 2550 7900 3100
Wire Wire Line
	8350 2000 8000 2000
Wire Wire Line
	8000 2000 8000 4550
$Comp
L Device:R R18
U 1 1 5EB80566
P 8650 2550
F 0 "R18" V 8443 2550 50  0000 C CNN
F 1 "50 K" V 8534 2550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 8580 2550 50  0001 C CNN
F 3 "~" H 8650 2550 50  0001 C CNN
	1    8650 2550
	0    -1   -1   0   
$EndComp
Connection ~ 8000 4550
$Comp
L Mechanical:MountingHole_Pad Out1
U 1 1 5E93DE64
P 10300 2250
F 0 "Out1" V 10300 2400 50  0001 L CNN
F 1 "Out" H 10400 2253 50  0000 L CNN
F 2 "Connector:Offboard_Pad" H 10300 2250 50  0001 C CNN
F 3 "~" H 10300 2250 50  0001 C CNN
	1    10300 2250
	0    1    1    0   
$EndComp
Wire Wire Line
	4000 4350 4000 4550
$Comp
L Device:R R7
U 1 1 5EA2A8F2
P 4000 3900
F 0 "R7" V 3793 3900 50  0000 C CNN
F 1 "1 K" V 3884 3900 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 3930 3900 50  0001 C CNN
F 3 "~" H 4000 3900 50  0001 C CNN
	1    4000 3900
	-1   0    0    1   
$EndComp
Wire Wire Line
	4950 3650 4950 2750
Connection ~ 4950 3650
Wire Wire Line
	4950 3650 5000 3650
Wire Wire Line
	4950 4150 4950 3650
Wire Wire Line
	4350 3750 4350 4150
Wire Wire Line
	4000 3750 4350 3750
$Comp
L Mechanical:MountingHole_Pad V1
U 1 1 5E92DAB0
P 1200 850
F 0 "V1" V 1345 853 50  0001 C CNN
F 1 "V+" V 1345 853 50  0000 C CNN
F 2 "Connector:Offboard_Pad" H 1200 850 50  0001 C CNN
F 3 "~" H 1200 850 50  0001 C CNN
	1    1200 850 
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1300 850  1450 850 
Wire Wire Line
	1450 850  1700 850 
Wire Wire Line
	5600 3050 5600 850 
Wire Wire Line
	6250 3050 6550 3050
Wire Wire Line
	7000 3050 6850 3050
$Comp
L Device:R R13
U 1 1 5EA95B80
P 6700 3050
F 0 "R13" V 6493 3050 50  0000 C CNN
F 1 "10 k" V 6584 3050 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 6630 3050 50  0001 C CNN
F 3 "~" H 6700 3050 50  0001 C CNN
	1    6700 3050
	0    1    1    0   
$EndComp
Wire Wire Line
	7000 3050 7000 3650
Connection ~ 7350 2400
Wire Wire Line
	7350 1700 7350 1800
$Comp
L Device:R R15
U 1 1 5EB1E705
P 7350 3250
F 0 "R15" V 7143 3250 50  0000 C CNN
F 1 "15 K" V 7234 3250 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 7280 3250 50  0001 C CNN
F 3 "~" H 7350 3250 50  0001 C CNN
	1    7350 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	5600 3350 5600 3450
Connection ~ 7350 3100
Wire Wire Line
	7350 3700 6650 3700
Wire Wire Line
	6650 3700 6650 3450
Wire Wire Line
	6650 3450 5600 3450
Connection ~ 5600 3450
Wire Wire Line
	5600 3450 5600 3650
Wire Wire Line
	7500 2750 7550 2750
Wire Wire Line
	7550 2750 7550 4550
Connection ~ 7550 4550
Wire Wire Line
	7550 4550 5900 4550
Wire Wire Line
	7550 4550 8000 4550
$Comp
L Device:CP1 C13
U 1 1 5EE6FBFF
P 9150 2100
F 0 "C13" V 9402 2100 50  0000 C CNN
F 1 "1 uf" V 9311 2100 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D4.0mm_P2.00mm" H 9150 2100 50  0001 C CNN
F 3 "~" H 9150 2100 50  0001 C CNN
	1    9150 2100
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8950 2100 9000 2100
$Comp
L Device:D D3
U 1 1 5EE74D2D
P 8350 3400
F 0 "D3" V 8304 3479 50  0000 L CNN
F 1 "1n34a" V 8395 3479 50  0000 L CNN
F 2 "Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal" H 8350 3400 50  0001 C CNN
F 3 "~" H 8350 3400 50  0001 C CNN
	1    8350 3400
	0    1    -1   0   
$EndComp
$Comp
L Device:D D4
U 1 1 5EE78829
P 8850 3400
F 0 "D4" V 8804 3479 50  0000 L CNN
F 1 "1n34a" V 8895 3479 50  0000 L CNN
F 2 "Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal" H 8850 3400 50  0001 C CNN
F 3 "~" H 8850 3400 50  0001 C CNN
	1    8850 3400
	0    1    1    0   
$EndComp
Connection ~ 8950 2100
Wire Wire Line
	9300 2100 9600 2100
$Comp
L Device:R_POT Level1
U 1 1 5F059300
P 9950 2250
F 0 "Level1" V 9743 2250 50  0000 C CNN
F 1 "A10K" V 9834 2250 50  0000 C CNN
F 2 "Potentiometer_THT:Potentiometer_Vishay_248GJ-249GJ_Single_Vertical" H 9950 2250 50  0001 C CNN
F 3 "~" H 9950 2250 50  0001 C CNN
	1    9950 2250
	1    0    0    -1  
$EndComp
Connection ~ 4950 4150
$Comp
L Device:R R1
U 1 1 5EA881A3
P 1100 3200
F 0 "R1" V 893 3200 50  0000 C CNN
F 1 "1 M" V 984 3200 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 1030 3200 50  0001 C CNN
F 3 "~" H 1100 3200 50  0001 C CNN
	1    1100 3200
	-1   0    0    1   
$EndComp
Wire Wire Line
	1100 2300 1100 3050
Wire Wire Line
	1100 3350 1100 4550
Wire Wire Line
	1100 4550 1300 4550
Wire Wire Line
	1450 1450 1700 1450
Wire Wire Line
	1700 1150 1700 1450
Connection ~ 1700 1450
Wire Wire Line
	1700 1450 2100 1450
Wire Wire Line
	1100 2300 1450 2300
$Comp
L Device:CP1 C5
U 1 1 5EB69701
P 4000 4200
F 0 "C5" V 4252 4200 50  0000 C CNN
F 1 "100 uf" V 4161 4200 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 4000 4200 50  0001 C CNN
F 3 "~" H 4000 4200 50  0001 C CNN
	1    4000 4200
	1    0    0    -1  
$EndComp
$Comp
L Device:C C12
U 1 1 5EB7CACE
P 8150 2400
F 0 "C12" V 7898 2400 50  0000 C CNN
F 1 "0.22 uf" V 7989 2400 50  0000 C CNN
F 2 "Capacitor_THT:C_Rect_L7.0mm_W2.0mm_P5.00mm" H 8188 2250 50  0001 C CNN
F 3 "~" H 8150 2400 50  0001 C CNN
	1    8150 2400
	-1   0    0    1   
$EndComp
Wire Wire Line
	7900 2550 8150 2550
Wire Wire Line
	8350 2200 8300 2200
Wire Wire Line
	8150 2200 8150 2250
Wire Wire Line
	8950 2550 8800 2550
Wire Wire Line
	8950 2100 8950 2550
$Comp
L Amplifier_Operational:TL072 U3
U 1 1 5EBD7DB3
P 6700 2650
F 0 "U3" H 6700 3017 50  0000 C CNN
F 1 "TL072" H 6700 2926 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm" H 6700 2650 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 6700 2650 50  0001 C CNN
	1    6700 2650
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL072 U3
U 2 1 5EBD215B
P 8650 2100
F 0 "U3" H 8650 2467 50  0000 C CNN
F 1 "TL072" H 8650 2376 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm" H 8650 2100 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 8650 2100 50  0001 C CNN
	2    8650 2100
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL072 U2
U 2 1 5ECCBABE
P 4650 3650
F 0 "U2" H 4650 4017 50  0000 C CNN
F 1 "TL072" H 4650 3926 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm" H 4650 3650 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 4650 3650 50  0001 C CNN
	2    4650 3650
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL072 U2
U 1 1 5ECCE5B8
P 4550 1850
F 0 "U2" H 4550 2217 50  0000 C CNN
F 1 "TL072" H 4550 2126 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm" H 4550 1850 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 4550 1850 50  0001 C CNN
	1    4550 1850
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:TL072 U2
U 3 1 5ECD1148
P 3000 1150
F 0 "U2" H 2958 1196 50  0000 L CNN
F 1 "TL072" H 2958 1105 50  0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm" H 3000 1150 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3000 1150 50  0001 C CNN
	3    3000 1150
	1    0    0    -1  
$EndComp
Connection ~ 4350 3750
Wire Wire Line
	2100 1450 2900 1450
Wire Wire Line
	2100 850  2550 850 
Connection ~ 2900 1450
Wire Wire Line
	2900 1450 3350 1450
Connection ~ 2900 850 
Wire Wire Line
	4850 1850 4900 1850
Wire Wire Line
	4900 2500 4900 1850
Connection ~ 4900 2500
$Comp
L Amplifier_Operational:TL071 U1
U 1 1 5ECC82A4
P 2650 2400
F 0 "U1" H 2994 2446 50  0000 L CNN
F 1 "TL071" H 2994 2355 50  0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm" H 2700 2450 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 2800 2550 50  0001 C CNN
	1    2650 2400
	1    0    0    -1  
$EndComp
Wire Wire Line
	1300 4550 1450 4550
Wire Wire Line
	1450 3050 1450 2300
Connection ~ 1450 2300
Wire Wire Line
	1450 3350 1450 4550
Connection ~ 1450 4550
Connection ~ 4250 1950
Wire Wire Line
	8350 3250 8600 3250
Wire Wire Line
	8600 2900 8600 3250
Connection ~ 8600 3250
Wire Wire Line
	8600 3250 8850 3250
Wire Wire Line
	8000 4550 8600 4550
Wire Wire Line
	8350 3550 8600 3550
Wire Wire Line
	8600 2900 9600 2900
Wire Wire Line
	9600 2900 9600 2100
Wire Wire Line
	8600 3550 8600 4550
Connection ~ 8600 3550
Wire Wire Line
	8600 3550 8850 3550
Connection ~ 8600 4550
Wire Wire Line
	8600 4550 9950 4550
Wire Wire Line
	9950 2400 9950 4550
Wire Wire Line
	10100 2250 10200 2250
Wire Wire Line
	9600 2100 9950 2100
Connection ~ 9600 2100
$Comp
L Mechanical:MountingHole_Pad In1
U 1 1 5E9369E2
P 600 2300
F 0 "In1" V 745 2303 50  0001 C CNN
F 1 "In" V 745 2303 50  0000 C CNN
F 2 "Connector:Offboard_Pad" H 600 2300 50  0001 C CNN
F 3 "~" H 600 2300 50  0001 C CNN
	1    600  2300
	0    -1   -1   0   
$EndComp
Wire Wire Line
	1450 2300 1550 2300
Wire Wire Line
	1450 4550 2550 4550
$Comp
L power:GND #PWR03
U 1 1 5F006FCA
P 3900 2800
F 0 "#PWR03" H 3900 2550 50  0001 C CNN
F 1 "GND" H 3905 2627 50  0000 C CNN
F 2 "" H 3900 2800 50  0001 C CNN
F 3 "" H 3900 2800 50  0001 C CNN
	1    3900 2800
	1    0    0    -1  
$EndComp
$Comp
L Device:C C3
U 1 1 5F007F2A
P 1700 2300
F 0 "C3" V 1448 2300 50  0000 C CNN
F 1 "0.47 uf" V 1539 2300 50  0000 C CNN
F 2 "Capacitor_THT:C_Rect_L7.0mm_W4.5mm_P5.00mm" H 1738 2150 50  0001 C CNN
F 3 "~" H 1700 2300 50  0001 C CNN
	1    1700 2300
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R5
U 1 1 5F008F1F
P 2150 2150
F 0 "R5" V 1943 2150 50  0000 C CNN
F 1 "4.7 k" V 2034 2150 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 2080 2150 50  0001 C CNN
F 3 "~" H 2150 2150 50  0001 C CNN
	1    2150 2150
	-1   0    0    1   
$EndComp
Wire Wire Line
	2150 2300 2350 2300
Connection ~ 2150 2300
Wire Wire Line
	2950 2400 2950 2900
Wire Wire Line
	2950 2900 2350 2900
Wire Wire Line
	2350 2900 2350 2500
Wire Wire Line
	2950 2400 3450 2400
Wire Wire Line
	3450 2400 3450 1750
Wire Wire Line
	3450 1750 4250 1750
Connection ~ 2950 2400
Wire Wire Line
	3450 2400 3450 3550
Wire Wire Line
	3450 3550 4350 3550
Connection ~ 3450 2400
Wire Wire Line
	4900 1850 5100 1850
Wire Wire Line
	5100 1850 5100 1700
Wire Wire Line
	5100 1700 7350 1700
Connection ~ 4900 1850
Wire Wire Line
	2100 1150 2450 1150
Wire Wire Line
	2450 1150 2450 1500
Wire Wire Line
	2450 1750 2150 1750
Wire Wire Line
	2150 1750 2150 2000
Connection ~ 2100 1150
Wire Wire Line
	6300 1500 2450 1500
Wire Wire Line
	6300 1500 6300 2000
Connection ~ 2450 1500
Wire Wire Line
	2450 1500 2450 1750
Wire Wire Line
	2550 2100 2550 850 
Connection ~ 2550 850 
Wire Wire Line
	2550 850  2900 850 
Wire Wire Line
	2550 2700 2550 4550
Connection ~ 2550 4550
Wire Wire Line
	2550 4550 4000 4550
$Comp
L Device:R R2
U 1 1 5E77D097
P 2000 2300
F 0 "R2" V 1793 2300 50  0000 C CNN
F 1 "10 K" V 1884 2300 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 1930 2300 50  0001 C CNN
F 3 "~" H 2000 2300 50  0001 C CNN
	1    2000 2300
	0    1    1    0   
$EndComp
Connection ~ 1100 2300
Wire Wire Line
	3350 850  5600 850 
Wire Wire Line
	2900 850  3350 850 
Connection ~ 3350 850 
$Comp
L Amplifier_Operational:TL072 U3
U 3 1 5EBDAC02
P 3450 1150
F 0 "U3" H 3408 1196 50  0000 L CNN
F 1 "TL072" H 3408 1105 50  0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm" H 3450 1150 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3450 1150 50  0001 C CNN
	3    3450 1150
	1    0    0    -1  
$EndComp
Wire Wire Line
	700  2300 1100 2300
$Comp
L Device:C C6
U 1 1 5EFAC8DC
P 4550 2750
F 0 "C6" V 4298 2750 50  0000 C CNN
F 1 "100 pf" V 4389 2750 50  0000 C CNN
F 2 "Capacitor_THT:C_Rect_L7.0mm_W4.5mm_P5.00mm" H 4588 2600 50  0001 C CNN
F 3 "~" H 4550 2750 50  0001 C CNN
	1    4550 2750
	0    -1   -1   0   
$EndComp
$Comp
L Device:C C7
U 1 1 5EFAEDC2
P 4600 4400
F 0 "C7" V 4348 4400 50  0000 C CNN
F 1 "100 pf" V 4439 4400 50  0000 C CNN
F 2 "Capacitor_THT:C_Rect_L7.0mm_W4.5mm_P5.00mm" H 4638 4250 50  0001 C CNN
F 3 "~" H 4600 4400 50  0001 C CNN
	1    4600 4400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4400 2750 4250 2750
Wire Wire Line
	4250 2750 4250 2650
Connection ~ 4250 2500
Wire Wire Line
	4700 2750 4900 2750
Wire Wire Line
	4450 4400 4350 4400
Wire Wire Line
	4350 4400 4350 4300
Connection ~ 4350 4150
Wire Wire Line
	4750 4400 4950 4400
Wire Wire Line
	4950 4150 4950 4400
Wire Wire Line
	4600 4300 4350 4300
Connection ~ 4350 4300
Wire Wire Line
	4350 4300 4350 4150
Wire Wire Line
	4900 2500 4900 2750
Wire Wire Line
	4550 2650 4250 2650
Connection ~ 4250 2650
Wire Wire Line
	4250 2650 4250 2500
Wire Wire Line
	8500 2550 8300 2550
Wire Wire Line
	8300 2550 8300 2200
Connection ~ 8300 2200
Wire Wire Line
	8300 2200 8150 2200
$EndSCHEMATC