Doubleplusbass.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 1 1
Title "Double Plus Bass"
Date "2021-09-28"
Rev "0.1"
Comp ""
Comment1 ""
Comment2 "Creative Commons Attribution-NonCommercial 4.0 International Public License"
Comment3 "Licensed by Juanito Moore under "
Comment4 ""
$EndDescr
$Comp
L Connector:AudioJack2_SwitchT J1
U 1 1 6152E6D7
P 1250 2900
F 0 "J1" H 1071 2833 50  0000 R CNN
F 1 "Trig" H 1071 2924 50  0000 R CNN
F 2 "" H 1250 2900 50  0001 C CNN
F 3 "~" H 1250 2900 50  0001 C CNN
	1    1250 2900
	1    0    0    1   
$EndComp
$Comp
L Device:C_Small C1
U 1 1 6152FABC
P 1950 2900
F 0 "C1" V 1721 2900 50  0000 C CNN
F 1 "10n" V 1812 2900 50  0000 C CNN
F 2 "" H 1950 2900 50  0001 C CNN
F 3 "~" H 1950 2900 50  0001 C CNN
	1    1950 2900
	0    1    1    0   
$EndComp
$Comp
L Device:R R2
U 1 1 61531381
P 1750 3150
F 0 "R2" H 1680 3104 50  0000 R CNN
F 1 "100k" H 1680 3195 50  0000 R CNN
F 2 "" V 1680 3150 50  0001 C CNN
F 3 "~" H 1750 3150 50  0001 C CNN
	1    1750 3150
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR05
U 1 1 615318B0
P 1750 3400
F 0 "#PWR05" H 1750 3150 50  0001 C CNN
F 1 "GND" H 1755 3227 50  0000 C CNN
F 2 "" H 1750 3400 50  0001 C CNN
F 3 "" H 1750 3400 50  0001 C CNN
	1    1750 3400
	1    0    0    -1  
$EndComp
$Comp
L power:+12V #PWR011
U 1 1 615323D3
P 2950 2150
F 0 "#PWR011" H 2950 2000 50  0001 C CNN
F 1 "+12V" H 2965 2323 50  0000 C CNN
F 2 "" H 2950 2150 50  0001 C CNN
F 3 "" H 2950 2150 50  0001 C CNN
	1    2950 2150
	1    0    0    -1  
$EndComp
$Comp
L power:-12V #PWR02
U 1 1 61532AE0
P 1300 6150
F 0 "#PWR02" H 1300 6250 50  0001 C CNN
F 1 "-12V" H 1315 6323 50  0000 C CNN
F 2 "" H 1300 6150 50  0001 C CNN
F 3 "" H 1300 6150 50  0001 C CNN
	1    1300 6150
	-1   0    0    1   
$EndComp
Wire Wire Line
	1450 2900 1750 2900
Wire Wire Line
	1750 3000 1750 2900
Connection ~ 1750 2900
Wire Wire Line
	1750 2900 1850 2900
Wire Wire Line
	1750 3300 1750 3400
$Comp
L Device:R R3
U 1 1 6153A5BE
P 2150 3150
F 0 "R3" H 2080 3104 50  0000 R CNN
F 1 "100k" H 2080 3195 50  0000 R CNN
F 2 "" V 2080 3150 50  0001 C CNN
F 3 "~" H 2150 3150 50  0001 C CNN
	1    2150 3150
	-1   0    0    1   
$EndComp
Wire Wire Line
	2050 2900 2150 2900
Wire Wire Line
	2150 2900 2150 3000
$Comp
L power:GND #PWR08
U 1 1 6153B168
P 2150 3400
F 0 "#PWR08" H 2150 3150 50  0001 C CNN
F 1 "GND" H 2155 3227 50  0000 C CNN
F 2 "" H 2150 3400 50  0001 C CNN
F 3 "" H 2150 3400 50  0001 C CNN
	1    2150 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2150 3300 2150 3400
$Comp
L power:GND #PWR03
U 1 1 6153B87C
P 1550 3100
F 0 "#PWR03" H 1550 2850 50  0001 C CNN
F 1 "GND" H 1555 2927 50  0000 C CNN
F 2 "" H 1550 3100 50  0001 C CNN
F 3 "" H 1550 3100 50  0001 C CNN
	1    1550 3100
	1    0    0    -1  
$EndComp
Wire Wire Line
	1450 3000 1550 3000
Wire Wire Line
	1550 3000 1550 3100
$Comp
L Amplifier_Operational:TL074 U1
U 1 1 6153C251
P 2750 2800
F 0 "U1" H 2750 2433 50  0000 C CNN
F 1 "TL074" H 2750 2524 50  0000 C CNN
F 2 "" H 2700 2900 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 2800 3000 50  0001 C CNN
	1    2750 2800
	1    0    0    1   
$EndComp
Wire Wire Line
	2150 2900 2450 2900
Connection ~ 2150 2900
$Comp
L Device:R R6
U 1 1 6153F13E
P 2200 2250
F 0 "R6" V 2407 2250 50  0000 C CNN
F 1 "10k" V 2316 2250 50  0000 C CNN
F 2 "" V 2130 2250 50  0001 C CNN
F 3 "~" H 2200 2250 50  0001 C CNN
	1    2200 2250
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2450 2700 2450 2250
Wire Wire Line
	2450 2250 2350 2250
$Comp
L power:GND #PWR07
U 1 1 615405B2
P 1950 2350
F 0 "#PWR07" H 1950 2100 50  0001 C CNN
F 1 "GND" H 1955 2177 50  0000 C CNN
F 2 "" H 1950 2350 50  0001 C CNN
F 3 "" H 1950 2350 50  0001 C CNN
	1    1950 2350
	1    0    0    -1  
$EndComp
Wire Wire Line
	2050 2250 1950 2250
Wire Wire Line
	1950 2250 1950 2350
$Comp
L Device:R R8
U 1 1 61541117
P 2700 2250
F 0 "R8" V 2907 2250 50  0000 C CNN
F 1 "68k" V 2816 2250 50  0000 C CNN
F 2 "" V 2630 2250 50  0001 C CNN
F 3 "~" H 2700 2250 50  0001 C CNN
	1    2700 2250
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2450 2250 2550 2250
Connection ~ 2450 2250
Wire Wire Line
	2850 2250 2950 2250
Wire Wire Line
	2950 2250 2950 2150
$Comp
L Device:R_POT RV3
U 1 1 61544D3F
P 3250 3050
F 0 "RV3" H 3180 3004 50  0000 R CNN
F 1 "B10k" H 3180 3095 50  0000 R CNN
F 2 "" H 3250 3050 50  0001 C CNN
F 3 "~" H 3250 3050 50  0001 C CNN
	1    3250 3050
	1    0    0    1   
$EndComp
Wire Wire Line
	3050 2800 3250 2800
Wire Wire Line
	3250 2800 3250 2900
$Comp
L power:GND #PWR013
U 1 1 61546476
P 3250 3300
F 0 "#PWR013" H 3250 3050 50  0001 C CNN
F 1 "GND" H 3255 3127 50  0000 C CNN
F 2 "" H 3250 3300 50  0001 C CNN
F 3 "" H 3250 3300 50  0001 C CNN
	1    3250 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 3200 3250 3300
$Comp
L Device:R R11
U 1 1 6154702E
P 3650 3050
F 0 "R11" V 3857 3050 50  0000 C CNN
F 1 "10k" V 3766 3050 50  0000 C CNN
F 2 "" V 3580 3050 50  0001 C CNN
F 3 "~" H 3650 3050 50  0001 C CNN
	1    3650 3050
	0    -1   -1   0   
$EndComp
Wire Wire Line
	3400 3050 3500 3050
$Comp
L Amplifier_Operational:LM13700 U4
U 4 1 615484DA
P 4200 3050
F 0 "U4" H 4100 3398 50  0000 C CNN
F 1 "LM13700" H 4100 3307 50  0000 C CNN
F 2 "" H 3900 3075 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm13700.pdf" H 3900 3075 50  0001 C CNN
	4    4200 3050
	1    0    0    -1  
$EndComp
Wire Wire Line
	3800 3050 3900 3050
$Comp
L Device:C_Small C6
U 1 1 6154AA9C
P 4400 3350
F 0 "C6" H 4308 3304 50  0000 R CNN
F 1 "470n" H 4308 3395 50  0000 R CNN
F 2 "" H 4400 3350 50  0001 C CNN
F 3 "~" H 4400 3350 50  0001 C CNN
	1    4400 3350
	-1   0    0    1   
$EndComp
Wire Wire Line
	4300 3150 4400 3150
Wire Wire Line
	4400 3150 4400 3250
$Comp
L power:GND #PWR017
U 1 1 6154BFAB
P 4400 3550
F 0 "#PWR017" H 4400 3300 50  0001 C CNN
F 1 "GND" H 4405 3377 50  0000 C CNN
F 2 "" H 4400 3550 50  0001 C CNN
F 3 "" H 4400 3550 50  0001 C CNN
	1    4400 3550
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 3450 4400 3550
$Comp
L Device:R R17
U 1 1 6154D040
P 4750 3400
F 0 "R17" H 4680 3354 50  0000 R CNN
F 1 "1k" H 4680 3445 50  0000 R CNN
F 2 "" V 4680 3400 50  0001 C CNN
F 3 "~" H 4750 3400 50  0001 C CNN
	1    4750 3400
	-1   0    0    1   
$EndComp
Wire Wire Line
	4400 3150 4750 3150
Wire Wire Line
	4750 3150 4750 3250
Connection ~ 4400 3150
$Comp
L Device:R_POT RV6
U 1 1 615508DF
P 4750 3900
F 0 "RV6" H 4681 3854 50  0000 R CNN
F 1 "B1M" H 4681 3945 50  0000 R CNN
F 2 "" H 4750 3900 50  0001 C CNN
F 3 "~" H 4750 3900 50  0001 C CNN
	1    4750 3900
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR018
U 1 1 6155198C
P 4750 4150
F 0 "#PWR018" H 4750 3900 50  0001 C CNN
F 1 "GND" H 4755 3977 50  0000 C CNN
F 2 "" H 4750 4150 50  0001 C CNN
F 3 "" H 4750 4150 50  0001 C CNN
	1    4750 4150
	1    0    0    -1  
$EndComp
Wire Wire Line
	4750 4050 4750 4150
Wire Wire Line
	4750 3550 4750 3650
Wire Wire Line
	4900 3900 5000 3900
Wire Wire Line
	5000 3900 5000 3650
Wire Wire Line
	5000 3650 4750 3650
Connection ~ 4750 3650
Wire Wire Line
	4750 3650 4750 3750
$Comp
L Device:R R19
U 1 1 61557E20
P 5100 3150
F 0 "R19" V 5307 3150 50  0000 C CNN
F 1 "10k" V 5216 3150 50  0000 C CNN
F 2 "" V 5030 3150 50  0001 C CNN
F 3 "~" H 5100 3150 50  0001 C CNN
	1    5100 3150
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4750 3150 4950 3150
Connection ~ 4750 3150
$Comp
L Transistor_BJT:MMBT3904 Q3
U 1 1 61559E63
P 5650 3150
F 0 "Q3" H 5841 3196 50  0000 L CNN
F 1 "MMBT3904" H 5841 3105 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 5850 3075 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3903-D.PDF" H 5650 3150 50  0001 L CNN
	1    5650 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	5250 3150 5450 3150
$Comp
L power:+12V #PWR023
U 1 1 6155BD49
P 5750 2850
F 0 "#PWR023" H 5750 2700 50  0001 C CNN
F 1 "+12V" H 5765 3023 50  0000 C CNN
F 2 "" H 5750 2850 50  0001 C CNN
F 3 "" H 5750 2850 50  0001 C CNN
	1    5750 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5750 2950 5750 2850
Wire Wire Line
	5750 3350 5750 3550
$Comp
L Device:R R22
U 1 1 61564D00
P 6000 3550
F 0 "R22" V 5793 3550 50  0000 C CNN
F 1 "47k" V 5884 3550 50  0000 C CNN
F 2 "" V 5930 3550 50  0001 C CNN
F 3 "~" H 6000 3550 50  0001 C CNN
	1    6000 3550
	0    1    1    0   
$EndComp
Wire Wire Line
	5750 3550 5850 3550
$Comp
L Amplifier_Operational:TL074 U1
U 2 1 61569488
P 6750 3650
F 0 "U1" H 6750 3283 50  0000 C CNN
F 1 "TL074" H 6750 3374 50  0000 C CNN
F 2 "" H 6700 3750 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 6800 3850 50  0001 C CNN
	2    6750 3650
	1    0    0    1   
$EndComp
Wire Wire Line
	6150 3550 6350 3550
$Comp
L Device:R R24
U 1 1 6156DFFF
P 6750 3150
F 0 "R24" V 6543 3150 50  0000 C CNN
F 1 "100k" V 6634 3150 50  0000 C CNN
F 2 "" V 6680 3150 50  0001 C CNN
F 3 "~" H 6750 3150 50  0001 C CNN
	1    6750 3150
	0    1    1    0   
$EndComp
Wire Wire Line
	6350 3550 6350 3150
Wire Wire Line
	6350 3150 6600 3150
Connection ~ 6350 3550
Wire Wire Line
	6350 3550 6450 3550
Wire Wire Line
	6900 3150 7150 3150
Wire Wire Line
	7150 3150 7150 3650
Wire Wire Line
	7150 3650 7050 3650
$Comp
L power:GND #PWR025
U 1 1 615703BF
P 6350 3850
F 0 "#PWR025" H 6350 3600 50  0001 C CNN
F 1 "GND" H 6355 3677 50  0000 C CNN
F 2 "" H 6350 3850 50  0001 C CNN
F 3 "" H 6350 3850 50  0001 C CNN
	1    6350 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	6450 3750 6350 3750
Wire Wire Line
	6350 3750 6350 3850
$Comp
L Device:R R25
U 1 1 61573DE3
P 6800 4500
F 0 "R25" V 6593 4500 50  0000 C CNN
F 1 "47k" V 6684 4500 50  0000 C CNN
F 2 "" V 6730 4500 50  0001 C CNN
F 3 "~" H 6800 4500 50  0001 C CNN
	1    6800 4500
	0    1    1    0   
$EndComp
Wire Wire Line
	7150 4500 6950 4500
Connection ~ 7150 3650
$Comp
L Connector:AudioJack2_SwitchT J2
U 1 1 61575EC9
P 1250 4700
F 0 "J2" H 1071 4633 50  0000 R CNN
F 1 "CV In" H 1071 4724 50  0000 R CNN
F 2 "" H 1250 4700 50  0001 C CNN
F 3 "~" H 1250 4700 50  0001 C CNN
	1    1250 4700
	1    0    0    1   
$EndComp
$Comp
L Device:R R4
U 1 1 6157737D
P 2150 4950
F 0 "R4" V 1943 4950 50  0000 C CNN
F 1 "47k" V 2034 4950 50  0000 C CNN
F 2 "" V 2080 4950 50  0001 C CNN
F 3 "~" H 2150 4950 50  0001 C CNN
	1    2150 4950
	0    1    1    0   
$EndComp
$Comp
L Device:R_POT RV2
U 1 1 61579521
P 1750 4950
F 0 "RV2" H 1950 5050 50  0000 R CNN
F 1 "B100k" H 2050 5150 50  0000 R CNN
F 2 "" H 1750 4950 50  0001 C CNN
F 3 "~" H 1750 4950 50  0001 C CNN
	1    1750 4950
	1    0    0    1   
$EndComp
Wire Wire Line
	1750 4700 1750 4800
$Comp
L power:GND #PWR06
U 1 1 61587E0E
P 1750 5200
F 0 "#PWR06" H 1750 4950 50  0001 C CNN
F 1 "GND" H 1755 5027 50  0000 C CNN
F 2 "" H 1750 5200 50  0001 C CNN
F 3 "" H 1750 5200 50  0001 C CNN
	1    1750 5200
	1    0    0    -1  
$EndComp
Wire Wire Line
	1750 5100 1750 5200
Wire Wire Line
	1900 4950 2000 4950
$Comp
L power:+12V #PWR01
U 1 1 6158AF0A
P 1300 5250
F 0 "#PWR01" H 1300 5100 50  0001 C CNN
F 1 "+12V" H 1315 5423 50  0000 C CNN
F 2 "" H 1300 5250 50  0001 C CNN
F 3 "" H 1300 5250 50  0001 C CNN
	1    1300 5250
	1    0    0    -1  
$EndComp
$Comp
L Device:R R1
U 1 1 6159099C
P 1300 5500
F 0 "R1" H 1230 5454 50  0000 R CNN
F 1 "47k" H 1230 5545 50  0000 R CNN
F 2 "" V 1230 5500 50  0001 C CNN
F 3 "~" H 1300 5500 50  0001 C CNN
	1    1300 5500
	-1   0    0    1   
$EndComp
Wire Wire Line
	1300 5250 1300 5350
$Comp
L Device:R_POT RV1
U 1 1 61592975
P 1300 5900
F 0 "RV1" H 1231 5854 50  0000 R CNN
F 1 "B100k" H 1231 5945 50  0000 R CNN
F 2 "" H 1300 5900 50  0001 C CNN
F 3 "~" H 1300 5900 50  0001 C CNN
	1    1300 5900
	1    0    0    1   
$EndComp
Wire Wire Line
	1300 5650 1300 5750
Wire Wire Line
	1300 6050 1300 6150
$Comp
L Device:R R5
U 1 1 615A2FD4
P 2150 5900
F 0 "R5" V 1943 5900 50  0000 C CNN
F 1 "100k" V 2034 5900 50  0000 C CNN
F 2 "" V 2080 5900 50  0001 C CNN
F 3 "~" H 2150 5900 50  0001 C CNN
	1    2150 5900
	0    1    1    0   
$EndComp
Wire Wire Line
	2300 4950 2400 4950
Wire Wire Line
	2400 4950 2400 5900
Wire Wire Line
	1450 5900 2000 5900
Wire Wire Line
	2300 5900 2400 5900
$Comp
L Device:R R7
U 1 1 615B109D
P 2400 6150
F 0 "R7" H 2330 6104 50  0000 R CNN
F 1 "1k" H 2330 6195 50  0000 R CNN
F 2 "" V 2330 6150 50  0001 C CNN
F 3 "~" H 2400 6150 50  0001 C CNN
	1    2400 6150
	-1   0    0    1   
$EndComp
Wire Wire Line
	2400 5900 2400 6000
Connection ~ 2400 5900
$Comp
L power:GND #PWR09
U 1 1 615B36BD
P 2400 6400
F 0 "#PWR09" H 2400 6150 50  0001 C CNN
F 1 "GND" H 2405 6227 50  0000 C CNN
F 2 "" H 2400 6400 50  0001 C CNN
F 3 "" H 2400 6400 50  0001 C CNN
	1    2400 6400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 6300 2400 6400
$Comp
L Transistor_BJT:MMBT3906 Q1
U 1 1 615B5EAC
P 2700 5900
F 0 "Q1" H 2891 5854 50  0000 L CNN
F 1 "MMBT3906" H 2891 5945 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 2900 5825 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3906-D.PDF" H 2700 5900 50  0001 L CNN
	1    2700 5900
	1    0    0    1   
$EndComp
Wire Wire Line
	2400 5900 2500 5900
$Comp
L Device:R R9
U 1 1 615B8DFA
P 2800 6350
F 0 "R9" H 2730 6304 50  0000 R CNN
F 1 "470k" H 2730 6395 50  0000 R CNN
F 2 "" V 2730 6350 50  0001 C CNN
F 3 "~" H 2800 6350 50  0001 C CNN
	1    2800 6350
	-1   0    0    1   
$EndComp
Wire Wire Line
	2800 6100 2800 6200
$Comp
L power:-12V #PWR010
U 1 1 615BB87B
P 2800 6600
F 0 "#PWR010" H 2800 6700 50  0001 C CNN
F 1 "-12V" H 2815 6773 50  0000 C CNN
F 2 "" H 2800 6600 50  0001 C CNN
F 3 "" H 2800 6600 50  0001 C CNN
	1    2800 6600
	-1   0    0    1   
$EndComp
Wire Wire Line
	2800 6500 2800 6600
$Comp
L Device:C_Small C2
U 1 1 615BF452
P 3700 5200
F 0 "C2" V 3471 5200 50  0000 C CNN
F 1 "1n" V 3562 5200 50  0000 C CNN
F 2 "" H 3700 5200 50  0001 C CNN
F 3 "~" H 3700 5200 50  0001 C CNN
	1    3700 5200
	0    1    1    0   
$EndComp
$Comp
L Amplifier_Operational:TL074 U1
U 3 1 615C0CD8
P 3700 5700
F 0 "U1" H 3700 5333 50  0000 C CNN
F 1 "TL074" H 3700 5424 50  0000 C CNN
F 2 "" H 3650 5800 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3750 5900 50  0001 C CNN
	3    3700 5700
	1    0    0    1   
$EndComp
Wire Wire Line
	2800 5700 2800 5600
Wire Wire Line
	2800 5600 3300 5600
Wire Wire Line
	3300 5600 3300 5200
Wire Wire Line
	3300 5200 3600 5200
Connection ~ 3300 5600
Wire Wire Line
	3300 5600 3400 5600
Wire Wire Line
	3800 5200 4100 5200
Wire Wire Line
	4100 5200 4100 5700
Wire Wire Line
	4100 5700 4000 5700
$Comp
L Device:R R15
U 1 1 615CFF62
P 4350 5200
F 0 "R15" V 4557 5200 50  0000 C CNN
F 1 "4k7" V 4466 5200 50  0000 C CNN
F 2 "" V 4280 5200 50  0001 C CNN
F 3 "~" H 4350 5200 50  0001 C CNN
	1    4350 5200
	0    -1   -1   0   
$EndComp
Connection ~ 4100 5200
Connection ~ 2800 5600
$Comp
L Transistor_BJT:MMBT3906 Q2
U 1 1 615D6580
P 4700 5900
F 0 "Q2" H 4891 5854 50  0000 L CNN
F 1 "MMBT3906" H 4891 5945 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 4900 5825 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3906-D.PDF" H 4700 5900 50  0001 L CNN
	1    4700 5900
	-1   0    0    1   
$EndComp
Wire Wire Line
	4100 5200 4200 5200
Wire Wire Line
	4500 5200 4600 5200
Wire Wire Line
	4600 5200 4600 5700
Wire Wire Line
	2800 4900 2800 5600
$Comp
L power:GND #PWR019
U 1 1 616079BC
P 5000 6000
F 0 "#PWR019" H 5000 5750 50  0001 C CNN
F 1 "GND" H 5005 5827 50  0000 C CNN
F 2 "" H 5000 6000 50  0001 C CNN
F 3 "" H 5000 6000 50  0001 C CNN
	1    5000 6000
	1    0    0    -1  
$EndComp
Wire Wire Line
	4900 5900 5000 5900
Wire Wire Line
	5000 5900 5000 6000
$Comp
L Device:R R16
U 1 1 6160B0EE
P 4600 6350
F 0 "R16" H 4670 6396 50  0000 L CNN
F 1 "10k" H 4670 6305 50  0000 L CNN
F 2 "" V 4530 6350 50  0001 C CNN
F 3 "~" H 4600 6350 50  0001 C CNN
	1    4600 6350
	1    0    0    -1  
$EndComp
Wire Wire Line
	4600 6100 4600 6200
$Comp
L Amplifier_Operational:LM13700 U3
U 3 1 61612489
P 4200 7300
F 0 "U3" H 4200 7667 50  0000 C CNN
F 1 "LM13700" H 4200 7576 50  0000 C CNN
F 2 "" H 3900 7325 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm13700.pdf" H 3900 7325 50  0001 C CNN
	3    4200 7300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R10
U 1 1 6161B0A6
P 3550 7100
F 0 "R10" V 3343 7100 50  0000 C CNN
F 1 "2k2" V 3434 7100 50  0000 C CNN
F 2 "" V 3480 7100 50  0001 C CNN
F 3 "~" H 3550 7100 50  0001 C CNN
	1    3550 7100
	0    1    1    0   
$EndComp
$Comp
L Diode:1N4148W D3
U 1 1 6161C776
P 3550 7500
F 0 "D3" H 3550 7717 50  0000 C CNN
F 1 "1N4148W" H 3550 7626 50  0000 C CNN
F 2 "Diode_SMD:D_SOD-123" H 3550 7325 50  0001 C CNN
F 3 "https://www.vishay.com/docs/85748/1n4148w.pdf" H 3550 7500 50  0001 C CNN
	1    3550 7500
	1    0    0    -1  
$EndComp
Wire Wire Line
	3700 7500 3800 7500
Wire Wire Line
	3800 7500 3800 7400
Wire Wire Line
	3800 7400 3900 7400
Wire Wire Line
	3700 7100 3800 7100
Wire Wire Line
	3800 7100 3800 7200
Wire Wire Line
	3800 7200 3900 7200
$Comp
L Diode:1N4148W D4
U 1 1 61625E68
P 3550 7700
F 0 "D4" H 3550 7850 50  0000 C CNN
F 1 "1N4148W" H 3550 7950 50  0000 C CNN
F 2 "Diode_SMD:D_SOD-123" H 3550 7525 50  0001 C CNN
F 3 "https://www.vishay.com/docs/85748/1n4148w.pdf" H 3550 7700 50  0001 C CNN
	1    3550 7700
	-1   0    0    1   
$EndComp
Wire Wire Line
	3800 7500 3800 7700
Wire Wire Line
	3800 7700 3700 7700
Connection ~ 3800 7500
$Comp
L Device:C_Small C5
U 1 1 6162AA9D
P 4150 7700
F 0 "C5" V 3921 7700 50  0000 C CNN
F 1 "4n7" V 4012 7700 50  0000 C CNN
F 2 "" H 4150 7700 50  0001 C CNN
F 3 "~" H 4150 7700 50  0001 C CNN
	1    4150 7700
	0    1    1    0   
$EndComp
Wire Wire Line
	3800 7700 4050 7700
Connection ~ 3800 7700
Wire Wire Line
	4250 7700 4700 7700
Wire Wire Line
	4700 7700 4700 7300
Wire Wire Line
	4700 7300 4500 7300
Wire Wire Line
	3400 7700 3300 7700
Wire Wire Line
	3300 7500 3400 7500
$Comp
L power:GND #PWR012
U 1 1 61635691
P 3200 7800
F 0 "#PWR012" H 3200 7550 50  0001 C CNN
F 1 "GND" H 3205 7627 50  0000 C CNN
F 2 "" H 3200 7800 50  0001 C CNN
F 3 "" H 3200 7800 50  0001 C CNN
	1    3200 7800
	1    0    0    -1  
$EndComp
$Comp
L Device:R R20
U 1 1 61641739
P 5300 7550
F 0 "R20" H 5370 7596 50  0000 L CNN
F 1 "4k7" H 5370 7505 50  0000 L CNN
F 2 "" V 5230 7550 50  0001 C CNN
F 3 "~" H 5300 7550 50  0001 C CNN
	1    5300 7550
	1    0    0    -1  
$EndComp
Wire Wire Line
	5100 7300 5300 7300
Wire Wire Line
	5300 7300 5300 7400
$Comp
L Device:R R14
U 1 1 61645A11
P 4150 6800
F 0 "R14" V 3943 6800 50  0000 C CNN
F 1 "22k" V 4034 6800 50  0000 C CNN
F 2 "" V 4080 6800 50  0001 C CNN
F 3 "~" H 4150 6800 50  0001 C CNN
	1    4150 6800
	0    1    1    0   
$EndComp
Wire Wire Line
	3800 7100 3800 6800
Wire Wire Line
	3800 6800 4000 6800
Connection ~ 3800 7100
Wire Wire Line
	3400 7100 3300 7100
Wire Wire Line
	3300 7100 3300 7500
Connection ~ 3300 7500
Wire Wire Line
	3300 7500 3300 7700
Wire Wire Line
	3300 7500 3200 7500
Wire Wire Line
	3200 7500 3200 7800
$Comp
L power:-12V #PWR022
U 1 1 61654758
P 5300 7800
F 0 "#PWR022" H 5300 7900 50  0001 C CNN
F 1 "-12V" H 5315 7973 50  0000 C CNN
F 2 "" H 5300 7800 50  0001 C CNN
F 3 "" H 5300 7800 50  0001 C CNN
	1    5300 7800
	-1   0    0    1   
$EndComp
Wire Wire Line
	5300 7700 5300 7800
Wire Wire Line
	5300 6800 5300 7300
Wire Wire Line
	4300 6800 5300 6800
Connection ~ 5300 7300
Wire Wire Line
	4500 7400 4600 7400
Wire Wire Line
	4600 7400 4600 6500
$Comp
L Device:CP_Small C8
U 1 1 61686F6C
P 5600 7300
F 0 "C8" V 5375 7300 50  0000 C CNN
F 1 "1u" V 5466 7300 50  0000 C CNN
F 2 "" H 5600 7300 50  0001 C CNN
F 3 "~" H 5600 7300 50  0001 C CNN
	1    5600 7300
	0    1    1    0   
$EndComp
Wire Wire Line
	5300 7300 5500 7300
$Comp
L Device:R R21
U 1 1 6168DE9B
P 5800 7550
F 0 "R21" H 5870 7596 50  0000 L CNN
F 1 "220k" H 5870 7505 50  0000 L CNN
F 2 "" V 5730 7550 50  0001 C CNN
F 3 "~" H 5800 7550 50  0001 C CNN
	1    5800 7550
	1    0    0    -1  
$EndComp
Wire Wire Line
	5700 7300 5800 7300
Wire Wire Line
	5800 7300 5800 7400
$Comp
L power:GND #PWR024
U 1 1 61693000
P 5800 7800
F 0 "#PWR024" H 5800 7550 50  0001 C CNN
F 1 "GND" H 5805 7627 50  0000 C CNN
F 2 "" H 5800 7800 50  0001 C CNN
F 3 "" H 5800 7800 50  0001 C CNN
	1    5800 7800
	1    0    0    -1  
$EndComp
Wire Wire Line
	5800 7700 5800 7800
Wire Wire Line
	6000 7300 5800 7300
Connection ~ 5800 7300
$Comp
L Device:R R26
U 1 1 616A7164
P 6950 7200
F 0 "R26" V 6743 7200 50  0000 C CNN
F 1 "2k2" V 6834 7200 50  0000 C CNN
F 2 "" V 6880 7200 50  0001 C CNN
F 3 "~" H 6950 7200 50  0001 C CNN
	1    6950 7200
	0    1    1    0   
$EndComp
Wire Wire Line
	6000 7100 5900 7100
Wire Wire Line
	5900 7100 5900 6750
Wire Wire Line
	5900 6750 6700 6750
$Comp
L Device:R_POT RV7
U 1 1 616BA2EC
P 7200 7450
F 0 "RV7" H 7131 7404 50  0000 R CNN
F 1 "B100k" H 7131 7495 50  0000 R CNN
F 2 "" H 7200 7450 50  0001 C CNN
F 3 "~" H 7200 7450 50  0001 C CNN
	1    7200 7450
	1    0    0    1   
$EndComp
Wire Wire Line
	7100 7200 7200 7200
Wire Wire Line
	7200 7200 7200 7300
$Comp
L Device:R R27
U 1 1 616BFDF5
P 7200 7850
F 0 "R27" H 7270 7896 50  0000 L CNN
F 1 "470k" H 7270 7805 50  0000 L CNN
F 2 "" V 7130 7850 50  0001 C CNN
F 3 "~" H 7200 7850 50  0001 C CNN
	1    7200 7850
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 7600 7200 7700
$Comp
L power:GND #PWR026
U 1 1 616C5A0F
P 7200 8100
F 0 "#PWR026" H 7200 7850 50  0001 C CNN
F 1 "GND" H 7205 7927 50  0000 C CNN
F 2 "" H 7200 8100 50  0001 C CNN
F 3 "" H 7200 8100 50  0001 C CNN
	1    7200 8100
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 8000 7200 8100
$Comp
L Device:R R28
U 1 1 616CAF4A
P 7600 7850
F 0 "R28" H 7670 7896 50  0000 L CNN
F 1 "1k" H 7670 7805 50  0000 L CNN
F 2 "" V 7530 7850 50  0001 C CNN
F 3 "~" H 7600 7850 50  0001 C CNN
	1    7600 7850
	1    0    0    -1  
$EndComp
Wire Wire Line
	7350 7450 7600 7450
Wire Wire Line
	7600 7450 7600 7700
$Comp
L power:GND #PWR028
U 1 1 616D0BD0
P 7600 8100
F 0 "#PWR028" H 7600 7850 50  0001 C CNN
F 1 "GND" H 7605 7927 50  0000 C CNN
F 2 "" H 7600 8100 50  0001 C CNN
F 3 "" H 7600 8100 50  0001 C CNN
	1    7600 8100
	1    0    0    -1  
$EndComp
Wire Wire Line
	7600 8000 7600 8100
$Comp
L Transistor_BJT:MMBT3904 Q5
U 1 1 616D9F05
P 8000 7450
F 0 "Q5" H 8200 7450 50  0000 L CNN
F 1 "MMBT3904" H 8200 7350 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 8200 7375 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3903-D.PDF" H 8000 7450 50  0001 L CNN
	1    8000 7450
	1    0    0    -1  
$EndComp
Wire Wire Line
	7600 7450 7800 7450
Connection ~ 7600 7450
$Comp
L Device:R R32
U 1 1 616E8575
P 8450 7850
F 0 "R32" V 8243 7850 50  0000 C CNN
F 1 "330R" V 8334 7850 50  0000 C CNN
F 2 "" V 8380 7850 50  0001 C CNN
F 3 "~" H 8450 7850 50  0001 C CNN
	1    8450 7850
	0    1    1    0   
$EndComp
$Comp
L Device:R_POT_TRIM RV10
U 1 1 616F19B1
P 8450 8150
F 0 "RV10" V 8243 8150 50  0000 C CNN
F 1 "10k" V 8334 8150 50  0000 C CNN
F 2 "" H 8450 8150 50  0001 C CNN
F 3 "~" H 8450 8150 50  0001 C CNN
	1    8450 8150
	0    -1   1    0   
$EndComp
$Comp
L Device:R R33
U 1 1 616F2BD1
P 8450 8550
F 0 "R33" H 8520 8596 50  0000 L CNN
F 1 "10k" H 8520 8505 50  0000 L CNN
F 2 "" V 8380 8550 50  0001 C CNN
F 3 "~" H 8450 8550 50  0001 C CNN
	1    8450 8550
	1    0    0    -1  
$EndComp
Wire Wire Line
	8450 8300 8450 8400
Wire Wire Line
	8300 7850 8100 7850
Wire Wire Line
	8100 7850 8100 7650
Wire Wire Line
	8300 8150 8100 8150
Wire Wire Line
	8100 8150 8100 7850
Connection ~ 8100 7850
$Comp
L Transistor_BJT:MMBT3904 Q6
U 1 1 61702259
P 8950 7450
F 0 "Q6" H 9150 7550 50  0000 L CNN
F 1 "MMBT3904" H 9150 7450 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 9150 7375 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3903-D.PDF" H 8950 7450 50  0001 L CNN
	1    8950 7450
	-1   0    0    -1  
$EndComp
Wire Wire Line
	8600 7850 8850 7850
Wire Wire Line
	8850 7850 8850 7650
Wire Wire Line
	8850 7850 8850 8150
Wire Wire Line
	8850 8150 8600 8150
Connection ~ 8850 7850
$Comp
L Device:R R38
U 1 1 6170DC64
P 9350 7850
F 0 "R38" H 9420 7896 50  0000 L CNN
F 1 "1k" H 9420 7805 50  0000 L CNN
F 2 "" V 9280 7850 50  0001 C CNN
F 3 "~" H 9350 7850 50  0001 C CNN
	1    9350 7850
	1    0    0    -1  
$EndComp
Wire Wire Line
	9150 7450 9350 7450
Wire Wire Line
	9350 7450 9350 7700
$Comp
L power:GND #PWR035
U 1 1 61715C02
P 9350 8100
F 0 "#PWR035" H 9350 7850 50  0001 C CNN
F 1 "GND" H 9355 7927 50  0000 C CNN
F 2 "" H 9350 8100 50  0001 C CNN
F 3 "" H 9350 8100 50  0001 C CNN
	1    9350 8100
	1    0    0    -1  
$EndComp
Wire Wire Line
	9350 8000 9350 8100
$Comp
L power:-12V #PWR031
U 1 1 6171DAE4
P 8450 8800
F 0 "#PWR031" H 8450 8900 50  0001 C CNN
F 1 "-12V" H 8465 8973 50  0000 C CNN
F 2 "" H 8450 8800 50  0001 C CNN
F 3 "" H 8450 8800 50  0001 C CNN
	1    8450 8800
	-1   0    0    1   
$EndComp
Wire Wire Line
	8450 8700 8450 8800
$Comp
L Amplifier_Operational:LM13700 U3
U 1 1 61723F72
P 10100 7050
F 0 "U3" H 10100 7350 50  0000 C CNN
F 1 "LM13700" H 10200 7250 50  0000 C CNN
F 2 "" H 9800 7075 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm13700.pdf" H 9800 7075 50  0001 C CNN
	1    10100 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:R R41
U 1 1 61727C4D
P 9700 7400
F 0 "R41" H 9770 7446 50  0000 L CNN
F 1 "220R" H 9770 7355 50  0000 L CNN
F 2 "" V 9630 7400 50  0001 C CNN
F 3 "~" H 9700 7400 50  0001 C CNN
	1    9700 7400
	1    0    0    -1  
$EndComp
Wire Wire Line
	8850 7250 8850 7150
Wire Wire Line
	8850 7150 9700 7150
Wire Wire Line
	9700 7250 9700 7150
Connection ~ 9700 7150
Wire Wire Line
	9700 7150 9800 7150
Wire Wire Line
	9800 6950 9700 6950
Wire Wire Line
	8100 6950 8100 7250
$Comp
L Device:R R36
U 1 1 617431FA
P 8850 6700
F 0 "R36" H 8920 6746 50  0000 L CNN
F 1 "10k" H 8920 6655 50  0000 L CNN
F 2 "" V 8780 6700 50  0001 C CNN
F 3 "~" H 8850 6700 50  0001 C CNN
	1    8850 6700
	1    0    0    -1  
$EndComp
Wire Wire Line
	8850 7150 8850 6850
Connection ~ 8850 7150
$Comp
L Device:R R31
U 1 1 6174A5B9
P 8100 6700
F 0 "R31" H 8170 6746 50  0000 L CNN
F 1 "10k" H 8170 6655 50  0000 L CNN
F 2 "" V 8030 6700 50  0001 C CNN
F 3 "~" H 8100 6700 50  0001 C CNN
	1    8100 6700
	1    0    0    -1  
$EndComp
Wire Wire Line
	8100 6950 8100 6850
Connection ~ 8100 6950
Wire Wire Line
	8100 6550 8100 6450
Wire Wire Line
	8100 6450 8500 6450
Wire Wire Line
	8850 6450 8850 6550
$Comp
L power:+12V #PWR032
U 1 1 617607B5
P 8500 6350
F 0 "#PWR032" H 8500 6200 50  0001 C CNN
F 1 "+12V" H 8515 6523 50  0000 C CNN
F 2 "" H 8500 6350 50  0001 C CNN
F 3 "" H 8500 6350 50  0001 C CNN
	1    8500 6350
	1    0    0    -1  
$EndComp
Wire Wire Line
	8500 6450 8500 6350
Connection ~ 8500 6450
Wire Wire Line
	8500 6450 8850 6450
$Comp
L Device:R R40
U 1 1 6176AFA9
P 9700 6700
F 0 "R40" H 9770 6746 50  0000 L CNN
F 1 "220R" H 9770 6655 50  0000 L CNN
F 2 "" V 9630 6700 50  0001 C CNN
F 3 "~" H 9700 6700 50  0001 C CNN
	1    9700 6700
	1    0    0    -1  
$EndComp
Wire Wire Line
	9700 6950 9700 6850
Connection ~ 9700 6950
Wire Wire Line
	9700 6950 8100 6950
$Comp
L power:GND #PWR038
U 1 1 61771F34
P 9700 7650
F 0 "#PWR038" H 9700 7400 50  0001 C CNN
F 1 "GND" H 9705 7477 50  0000 C CNN
F 2 "" H 9700 7650 50  0001 C CNN
F 3 "" H 9700 7650 50  0001 C CNN
	1    9700 7650
	1    0    0    -1  
$EndComp
Wire Wire Line
	9700 7550 9700 7650
$Comp
L power:GND #PWR037
U 1 1 61779007
P 9550 6550
F 0 "#PWR037" H 9550 6300 50  0001 C CNN
F 1 "GND" H 9555 6377 50  0000 C CNN
F 2 "" H 9550 6550 50  0001 C CNN
F 3 "" H 9550 6550 50  0001 C CNN
	1    9550 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	9550 6550 9550 6450
Wire Wire Line
	9550 6450 9700 6450
Wire Wire Line
	9700 6450 9700 6550
$Comp
L Amplifier_Operational:TL074 U1
U 4 1 61793337
P 6300 7200
F 0 "U1" H 6300 6833 50  0000 C CNN
F 1 "TL074" H 6300 6924 50  0000 C CNN
F 2 "" H 6250 7300 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 6350 7400 50  0001 C CNN
	4    6300 7200
	1    0    0    1   
$EndComp
Wire Wire Line
	6700 7200 6600 7200
Wire Wire Line
	6700 6750 6700 7200
Wire Wire Line
	6700 7200 6800 7200
Connection ~ 6700 7200
Wire Wire Line
	1450 4700 1750 4700
$Comp
L power:GND #PWR04
U 1 1 61917E55
P 1550 4900
F 0 "#PWR04" H 1550 4650 50  0001 C CNN
F 1 "GND" H 1555 4727 50  0000 C CNN
F 2 "" H 1550 4900 50  0001 C CNN
F 3 "" H 1550 4900 50  0001 C CNN
	1    1550 4900
	1    0    0    -1  
$EndComp
Wire Wire Line
	1450 4800 1550 4800
Wire Wire Line
	1550 4800 1550 4900
Wire Wire Line
	3300 5200 3300 4500
Wire Wire Line
	3300 4500 6650 4500
Connection ~ 3300 5200
Wire Wire Line
	7150 3650 7150 4500
$Comp
L Device:R R42
U 1 1 619BCF82
P 10600 5750
F 0 "R42" H 10670 5796 50  0000 L CNN
F 1 "10k" H 10670 5705 50  0000 L CNN
F 2 "" V 10530 5750 50  0001 C CNN
F 3 "~" H 10600 5750 50  0001 C CNN
	1    10600 5750
	1    0    0    -1  
$EndComp
$Comp
L Transistor_BJT:MMBT3906 Q7
U 1 1 619BEBCF
P 10700 6200
F 0 "Q7" H 10891 6154 50  0000 L CNN
F 1 "MMBT3906" H 10891 6245 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 10900 6125 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3906-D.PDF" H 10700 6200 50  0001 L CNN
	1    10700 6200
	-1   0    0    1   
$EndComp
Wire Wire Line
	10400 7150 10600 7150
Wire Wire Line
	10600 7150 10600 6400
$Comp
L power:GND #PWR040
U 1 1 619C8A16
P 11000 6300
F 0 "#PWR040" H 11000 6050 50  0001 C CNN
F 1 "GND" H 11005 6127 50  0000 C CNN
F 2 "" H 11000 6300 50  0001 C CNN
F 3 "" H 11000 6300 50  0001 C CNN
	1    11000 6300
	1    0    0    -1  
$EndComp
Wire Wire Line
	10900 6200 11000 6200
Wire Wire Line
	11000 6200 11000 6300
Wire Wire Line
	10600 6000 10600 5900
$Comp
L Diode:1N4148W D2
U 1 1 619E4BC8
P 3500 2250
F 0 "D2" H 3500 2400 50  0000 C CNN
F 1 "1N4148W" H 3500 2500 50  0000 C CNN
F 2 "Diode_SMD:D_SOD-123" H 3500 2075 50  0001 C CNN
F 3 "https://www.vishay.com/docs/85748/1n4148w.pdf" H 3500 2250 50  0001 C CNN
	1    3500 2250
	-1   0    0    1   
$EndComp
Wire Wire Line
	3250 2800 3250 2250
Wire Wire Line
	3250 2250 3350 2250
Connection ~ 3250 2800
$Comp
L Device:CP_Small C3
U 1 1 61A017A8
P 3850 2450
F 0 "C3" H 3938 2496 50  0000 L CNN
F 1 "1u" H 3938 2405 50  0000 L CNN
F 2 "" H 3850 2450 50  0001 C CNN
F 3 "~" H 3850 2450 50  0001 C CNN
	1    3850 2450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR015
U 1 1 61A05418
P 3850 2650
F 0 "#PWR015" H 3850 2400 50  0001 C CNN
F 1 "GND" H 3855 2477 50  0000 C CNN
F 2 "" H 3850 2650 50  0001 C CNN
F 3 "" H 3850 2650 50  0001 C CNN
	1    3850 2650
	1    0    0    -1  
$EndComp
Wire Wire Line
	3850 2550 3850 2650
Wire Wire Line
	3650 2250 3850 2250
Wire Wire Line
	3850 2250 3850 2350
$Comp
L Device:R R13
U 1 1 61A156AA
P 4150 2250
F 0 "R13" V 4357 2250 50  0000 C CNN
F 1 "1k" V 4266 2250 50  0000 C CNN
F 2 "" V 4080 2250 50  0001 C CNN
F 3 "~" H 4150 2250 50  0001 C CNN
	1    4150 2250
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_POT RV4
U 1 1 61A2857E
P 4400 2500
F 0 "RV4" H 4331 2454 50  0000 R CNN
F 1 "B1M" H 4331 2545 50  0000 R CNN
F 2 "" H 4400 2500 50  0001 C CNN
F 3 "~" H 4400 2500 50  0001 C CNN
	1    4400 2500
	1    0    0    1   
$EndComp
Wire Wire Line
	4300 2250 4400 2250
Wire Wire Line
	4400 2250 4400 2350
Wire Wire Line
	3850 2250 4000 2250
Connection ~ 3850 2250
$Comp
L power:GND #PWR016
U 1 1 61A5B826
P 4400 2750
F 0 "#PWR016" H 4400 2500 50  0001 C CNN
F 1 "GND" H 4405 2577 50  0000 C CNN
F 2 "" H 4400 2750 50  0001 C CNN
F 3 "" H 4400 2750 50  0001 C CNN
	1    4400 2750
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 2650 4400 2750
Wire Wire Line
	4550 2500 4650 2500
Wire Wire Line
	4650 2500 4650 2250
Wire Wire Line
	4650 2250 4400 2250
Connection ~ 4400 2250
$Comp
L Device:R R23
U 1 1 61A6D6E7
P 6750 2550
F 0 "R23" V 6957 2550 50  0000 C CNN
F 1 "10k" V 6866 2550 50  0000 C CNN
F 2 "" V 6680 2550 50  0001 C CNN
F 3 "~" H 6750 2550 50  0001 C CNN
	1    6750 2550
	0    -1   -1   0   
$EndComp
Wire Wire Line
	3850 2250 3850 2000
$Comp
L Transistor_BJT:MMBT3904 Q4
U 1 1 61A773A0
P 7300 2550
F 0 "Q4" H 7491 2596 50  0000 L CNN
F 1 "MMBT3904" H 7491 2505 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 7500 2475 50  0001 L CIN
F 3 "https://www.onsemi.com/pub/Collateral/2N3903-D.PDF" H 7300 2550 50  0001 L CNN
	1    7300 2550
	1    0    0    -1  
$EndComp
Wire Wire Line
	6900 2550 7100 2550
$Comp
L power:+12V #PWR027
U 1 1 61A9E848
P 7400 2250
F 0 "#PWR027" H 7400 2100 50  0001 C CNN
F 1 "+12V" H 7415 2423 50  0000 C CNN
F 2 "" H 7400 2250 50  0001 C CNN
F 3 "" H 7400 2250 50  0001 C CNN
	1    7400 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	7400 2350 7400 2250
Wire Wire Line
	7400 2750 7400 3300
$Comp
L Amplifier_Operational:TL074 U2
U 1 1 61AB6F5A
P 8750 3400
F 0 "U2" H 8750 3033 50  0000 C CNN
F 1 "TL074" H 8750 3124 50  0000 C CNN
F 2 "" H 8700 3500 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 8800 3600 50  0001 C CNN
	1    8750 3400
	1    0    0    1   
$EndComp
$Comp
L Device:R_POT RV8
U 1 1 61ABBEE5
P 7750 3550
F 0 "RV8" H 7681 3504 50  0000 R CNN
F 1 "B1M" H 7681 3595 50  0000 R CNN
F 2 "" H 7750 3550 50  0001 C CNN
F 3 "~" H 7750 3550 50  0001 C CNN
	1    7750 3550
	1    0    0    1   
$EndComp
$Comp
L Device:R R30
U 1 1 61AC2D25
P 8050 3300
F 0 "R30" V 8257 3300 50  0000 C CNN
F 1 "1M" V 8166 3300 50  0000 C CNN
F 2 "" V 7980 3300 50  0001 C CNN
F 3 "~" H 8050 3300 50  0001 C CNN
	1    8050 3300
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7750 3400 7750 3300
Wire Wire Line
	7750 3300 7900 3300
Wire Wire Line
	7900 3550 8200 3550
Wire Wire Line
	8200 3550 8200 3500
Wire Wire Line
	8200 3500 8450 3500
$Comp
L Device:R R35
U 1 1 61AF3094
P 8750 2900
F 0 "R35" V 8957 2900 50  0000 C CNN
F 1 "1M" V 8866 2900 50  0000 C CNN
F 2 "" V 8680 2900 50  0001 C CNN
F 3 "~" H 8750 2900 50  0001 C CNN
	1    8750 2900
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8200 3300 8350 3300
Wire Wire Line
	8600 2900 8350 2900
Wire Wire Line
	8350 2900 8350 3300
Connection ~ 8350 3300
Wire Wire Line
	8350 3300 8450 3300
Wire Wire Line
	9050 3400 9150 3400
Wire Wire Line
	9150 3400 9150 2900
Wire Wire Line
	9150 2900 8900 2900
$Comp
L Device:R R29
U 1 1 61B15246
P 7750 4050
F 0 "R29" H 7680 4004 50  0000 R CNN
F 1 "10k" H 7680 4095 50  0000 R CNN
F 2 "" V 7680 4050 50  0001 C CNN
F 3 "~" H 7750 4050 50  0001 C CNN
	1    7750 4050
	-1   0    0    1   
$EndComp
Wire Wire Line
	7750 3700 7750 3800
Wire Wire Line
	7750 3800 7750 3900
$Comp
L power:GND #PWR029
U 1 1 61B236C0
P 7750 4300
F 0 "#PWR029" H 7750 4050 50  0001 C CNN
F 1 "GND" H 7755 4127 50  0000 C CNN
F 2 "" H 7750 4300 50  0001 C CNN
F 3 "" H 7750 4300 50  0001 C CNN
	1    7750 4300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7750 4200 7750 4300
$Comp
L Device:R R34
U 1 1 61B311BB
P 8700 3800
F 0 "R34" V 8907 3800 50  0000 C CNN
F 1 "15k" V 8816 3800 50  0000 C CNN
F 2 "" V 8630 3800 50  0001 C CNN
F 3 "~" H 8700 3800 50  0001 C CNN
	1    8700 3800
	0    -1   -1   0   
$EndComp
$Comp
L power:+12V #PWR033
U 1 1 61B51BDD
P 8950 3700
F 0 "#PWR033" H 8950 3550 50  0001 C CNN
F 1 "+12V" H 8965 3873 50  0000 C CNN
F 2 "" H 8950 3700 50  0001 C CNN
F 3 "" H 8950 3700 50  0001 C CNN
	1    8950 3700
	1    0    0    -1  
$EndComp
Wire Wire Line
	8850 3800 8950 3800
Wire Wire Line
	8950 3800 8950 3700
$Comp
L Connector:AudioJack2_SwitchT J3
U 1 1 61B8F756
P 9850 3400
F 0 "J3" H 9671 3333 50  0000 R CNN
F 1 "Envelope Out" H 9671 3424 50  0000 R CNN
F 2 "" H 9850 3400 50  0001 C CNN
F 3 "~" H 9850 3400 50  0001 C CNN
	1    9850 3400
	-1   0    0    1   
$EndComp
Wire Wire Line
	9150 3400 9650 3400
Connection ~ 9150 3400
$Comp
L power:GND #PWR036
U 1 1 61B9E857
P 9550 3600
F 0 "#PWR036" H 9550 3350 50  0001 C CNN
F 1 "GND" H 9555 3427 50  0000 C CNN
F 2 "" H 9550 3600 50  0001 C CNN
F 3 "" H 9550 3600 50  0001 C CNN
	1    9550 3600
	1    0    0    -1  
$EndComp
Wire Wire Line
	9550 3600 9550 3500
Wire Wire Line
	9550 3500 9650 3500
$Comp
L Amplifier_Operational:TL074 U2
U 2 1 61BACF60
P 9950 2650
F 0 "U2" H 9950 2283 50  0000 C CNN
F 1 "TL074" H 9950 2374 50  0000 C CNN
F 2 "" H 9900 2750 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 10000 2850 50  0001 C CNN
	2    9950 2650
	1    0    0    1   
$EndComp
$Comp
L Device:R R39
U 1 1 61BAFBEF
P 9400 2750
F 0 "R39" V 9607 2750 50  0000 C CNN
F 1 "10k" V 9516 2750 50  0000 C CNN
F 2 "" V 9330 2750 50  0001 C CNN
F 3 "~" H 9400 2750 50  0001 C CNN
	1    9400 2750
	0    -1   -1   0   
$EndComp
Wire Wire Line
	9150 2900 9150 2750
Wire Wire Line
	9150 2750 9250 2750
Connection ~ 9150 2900
Wire Wire Line
	9550 2750 9650 2750
$Comp
L Device:R R37
U 1 1 61BC71DF
P 9300 2400
F 0 "R37" V 9507 2400 50  0000 C CNN
F 1 "1k" V 9416 2400 50  0000 C CNN
F 2 "" V 9230 2400 50  0001 C CNN
F 3 "~" H 9300 2400 50  0001 C CNN
	1    9300 2400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	9450 2400 9550 2400
Wire Wire Line
	9550 2400 9550 2550
Wire Wire Line
	9550 2550 9650 2550
$Comp
L power:GND #PWR034
U 1 1 61BD4179
P 9050 2500
F 0 "#PWR034" H 9050 2250 50  0001 C CNN
F 1 "GND" H 9055 2327 50  0000 C CNN
F 2 "" H 9050 2500 50  0001 C CNN
F 3 "" H 9050 2500 50  0001 C CNN
	1    9050 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	9050 2500 9050 2400
Wire Wire Line
	9050 2400 9150 2400
$Comp
L Device:LED_Small D5
U 1 1 61BE07AB
P 9900 2150
F 0 "D5" H 9900 2385 50  0000 C CNN
F 1 "LED_Small" H 9900 2294 50  0000 C CNN
F 2 "" V 9900 2150 50  0001 C CNN
F 3 "~" V 9900 2150 50  0001 C CNN
	1    9900 2150
	1    0    0    -1  
$EndComp
Wire Wire Line
	10000 2150 10350 2150
Wire Wire Line
	10350 2150 10350 2650
Wire Wire Line
	10350 2650 10250 2650
Wire Wire Line
	9800 2150 9550 2150
Wire Wire Line
	9550 2150 9550 2400
Connection ~ 9550 2400
Wire Wire Line
	10400 7050 10850 7050
$Comp
L Device:R R43
U 1 1 61C4E17B
P 11250 6650
F 0 "R43" V 11043 6650 50  0000 C CNN
F 1 "33k" V 11134 6650 50  0000 C CNN
F 2 "" V 11180 6650 50  0001 C CNN
F 3 "~" H 11250 6650 50  0001 C CNN
	1    11250 6650
	0    1    1    0   
$EndComp
Wire Wire Line
	10850 7050 10850 6650
Wire Wire Line
	10850 6650 11100 6650
Connection ~ 10850 7050
Wire Wire Line
	10850 7050 10950 7050
Wire Wire Line
	11400 6650 11650 6650
Wire Wire Line
	11650 6650 11650 7150
Wire Wire Line
	11650 7150 11550 7150
$Comp
L power:GND #PWR039
U 1 1 61C67DA8
P 10850 7350
F 0 "#PWR039" H 10850 7100 50  0001 C CNN
F 1 "GND" H 10855 7177 50  0000 C CNN
F 2 "" H 10850 7350 50  0001 C CNN
F 3 "" H 10850 7350 50  0001 C CNN
	1    10850 7350
	1    0    0    -1  
$EndComp
Wire Wire Line
	10850 7350 10850 7250
Wire Wire Line
	10850 7250 10950 7250
$Comp
L Diode:1N4148W D1
U 1 1 61C7D9CA
P 3500 1600
F 0 "D1" H 3500 1750 50  0000 C CNN
F 1 "1N4148W" H 3500 1850 50  0000 C CNN
F 2 "Diode_SMD:D_SOD-123" H 3500 1425 50  0001 C CNN
F 3 "https://www.vishay.com/docs/85748/1n4148w.pdf" H 3500 1600 50  0001 C CNN
	1    3500 1600
	-1   0    0    1   
$EndComp
Wire Wire Line
	3350 1600 3250 1600
Connection ~ 3250 2250
$Comp
L Device:R R12
U 1 1 61C8BE55
P 4150 1850
F 0 "R12" V 4357 1850 50  0000 C CNN
F 1 "33k" V 4266 1850 50  0000 C CNN
F 2 "" V 4080 1850 50  0001 C CNN
F 3 "~" H 4150 1850 50  0001 C CNN
	1    4150 1850
	0    -1   -1   0   
$EndComp
Wire Wire Line
	3650 1600 3850 1600
Wire Wire Line
	3850 1850 4000 1850
$Comp
L Device:C_Small C4
U 1 1 61C9B277
P 4150 1350
F 0 "C4" V 3921 1350 50  0000 C CNN
F 1 "2n2" V 4012 1350 50  0000 C CNN
F 2 "" H 4150 1350 50  0001 C CNN
F 3 "~" H 4150 1350 50  0001 C CNN
	1    4150 1350
	0    1    1    0   
$EndComp
Wire Wire Line
	3850 1350 4050 1350
$Comp
L Device:R_POT RV5
U 1 1 61CAA845
P 4550 1600
F 0 "RV5" H 4481 1554 50  0000 R CNN
F 1 "B100k" H 4481 1645 50  0000 R CNN
F 2 "" H 4550 1600 50  0001 C CNN
F 3 "~" H 4550 1600 50  0001 C CNN
	1    4550 1600
	1    0    0    1   
$EndComp
Connection ~ 3850 1600
Wire Wire Line
	3850 1600 3850 1850
Wire Wire Line
	3250 1600 3250 2250
Wire Wire Line
	3850 1350 3850 1600
Wire Wire Line
	4250 1350 4550 1350
Wire Wire Line
	4550 1350 4550 1450
Wire Wire Line
	4300 1850 4550 1850
Wire Wire Line
	4550 1850 4550 1750
$Comp
L Device:C_Small C7
U 1 1 61D13173
P 4950 1850
F 0 "C7" V 4721 1850 50  0000 C CNN
F 1 "22n" V 4812 1850 50  0000 C CNN
F 2 "" H 4950 1850 50  0001 C CNN
F 3 "~" H 4950 1850 50  0001 C CNN
	1    4950 1850
	0    1    1    0   
$EndComp
Wire Wire Line
	4550 1850 4850 1850
Connection ~ 4550 1850
$Comp
L Device:R R18
U 1 1 61D227F4
P 4950 1350
F 0 "R18" V 5157 1350 50  0000 C CNN
F 1 "100k" V 5066 1350 50  0000 C CNN
F 2 "" V 4880 1350 50  0001 C CNN
F 3 "~" H 4950 1350 50  0001 C CNN
	1    4950 1350
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4550 1350 4800 1350
Connection ~ 4550 1350
Wire Wire Line
	3850 2000 4900 2000
Wire Wire Line
	4900 2000 4900 2550
Wire Wire Line
	4900 2550 6600 2550
$Comp
L power:GND #PWR021
U 1 1 61D44B68
P 5200 1950
F 0 "#PWR021" H 5200 1700 50  0001 C CNN
F 1 "GND" H 5205 1777 50  0000 C CNN
F 2 "" H 5200 1950 50  0001 C CNN
F 3 "" H 5200 1950 50  0001 C CNN
	1    5200 1950
	1    0    0    -1  
$EndComp
Wire Wire Line
	5200 1850 5200 1950
$Comp
L power:GND #PWR020
U 1 1 61D54924
P 5200 1450
F 0 "#PWR020" H 5200 1200 50  0001 C CNN
F 1 "GND" H 5205 1277 50  0000 C CNN
F 2 "" H 5200 1450 50  0001 C CNN
F 3 "" H 5200 1450 50  0001 C CNN
	1    5200 1450
	1    0    0    -1  
$EndComp
Wire Wire Line
	5100 1350 5200 1350
Wire Wire Line
	5200 1350 5200 1450
Wire Wire Line
	5050 1850 5200 1850
Wire Wire Line
	11650 7150 11800 7150
Connection ~ 11650 7150
$Comp
L Device:R R45
U 1 1 61DA4095
P 11800 1850
F 0 "R45" H 11870 1896 50  0000 L CNN
F 1 "1M" H 11870 1805 50  0000 L CNN
F 2 "" V 11730 1850 50  0001 C CNN
F 3 "~" H 11800 1850 50  0001 C CNN
	1    11800 1850
	1    0    0    -1  
$EndComp
$Comp
L Device:R R44
U 1 1 61DBE243
P 11550 1600
F 0 "R44" V 11757 1600 50  0000 C CNN
F 1 "330k" V 11666 1600 50  0000 C CNN
F 2 "" V 11480 1600 50  0001 C CNN
F 3 "~" H 11550 1600 50  0001 C CNN
	1    11550 1600
	0    -1   -1   0   
$EndComp
Wire Wire Line
	11700 1600 11800 1600
Wire Wire Line
	11800 1600 11800 1700
Wire Wire Line
	11800 2000 11800 7150
$Comp
L Amplifier_Operational:TL074 U2
U 3 1 61E2B450
P 11250 7150
F 0 "U2" H 11250 6783 50  0000 C CNN
F 1 "TL074" H 11250 6874 50  0000 C CNN
F 2 "" H 11200 7250 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 11300 7350 50  0001 C CNN
	3    11250 7150
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL074 U2
U 4 1 61E38E8F
P 12550 1700
F 0 "U2" H 12550 1333 50  0000 C CNN
F 1 "TL074" H 12550 1424 50  0000 C CNN
F 2 "" H 12500 1800 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 12600 1900 50  0001 C CNN
	4    12550 1700
	1    0    0    1   
$EndComp
Wire Wire Line
	11800 1600 12150 1600
Connection ~ 11800 1600
$Comp
L power:GND #PWR041
U 1 1 61E5135A
P 12150 1900
F 0 "#PWR041" H 12150 1650 50  0001 C CNN
F 1 "GND" H 12155 1727 50  0000 C CNN
F 2 "" H 12150 1900 50  0001 C CNN
F 3 "" H 12150 1900 50  0001 C CNN
	1    12150 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	12250 1800 12150 1800
Wire Wire Line
	12150 1800 12150 1900
$Comp
L Device:R_POT RV11
U 1 1 61E62A8C
P 12550 1050
F 0 "RV11" V 12435 1050 50  0000 C CNN
F 1 "A1M" V 12344 1050 50  0000 C CNN
F 2 "" H 12550 1050 50  0001 C CNN
F 3 "~" H 12550 1050 50  0001 C CNN
	1    12550 1050
	0    -1   -1   0   
$EndComp
Wire Wire Line
	12150 1600 12150 1050
Wire Wire Line
	12150 1050 12400 1050
Connection ~ 12150 1600
Wire Wire Line
	12150 1600 12250 1600
Wire Wire Line
	12950 1050 12950 1700
Wire Wire Line
	12950 1700 12850 1700
Wire Wire Line
	12800 1050 12800 800 
Wire Wire Line
	12800 800  12550 800 
Wire Wire Line
	12550 800  12550 900 
Wire Wire Line
	12700 1050 12800 1050
Connection ~ 12800 1050
Wire Wire Line
	12800 1050 12950 1050
$Comp
L Connector:AudioJack2_SwitchT J4
U 1 1 61F1514C
P 13550 1700
F 0 "J4" H 13371 1633 50  0000 R CNN
F 1 "Audio Out" H 13371 1724 50  0000 R CNN
F 2 "" H 13550 1700 50  0001 C CNN
F 3 "~" H 13550 1700 50  0001 C CNN
	1    13550 1700
	-1   0    0    1   
$EndComp
Wire Wire Line
	12950 1700 13350 1700
Connection ~ 12950 1700
$Comp
L power:GND #PWR042
U 1 1 61F2BB10
P 13250 1900
F 0 "#PWR042" H 13250 1650 50  0001 C CNN
F 1 "GND" H 13255 1727 50  0000 C CNN
F 2 "" H 13250 1900 50  0001 C CNN
F 3 "" H 13250 1900 50  0001 C CNN
	1    13250 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	13350 1800 13250 1800
Wire Wire Line
	13250 1800 13250 1900
$Comp
L Amplifier_Operational:LM13700 U3
U 2 1 61F5AAE8
P 5000 7200
F 0 "U3" H 4900 7548 50  0000 C CNN
F 1 "LM13700" H 4900 7457 50  0000 C CNN
F 2 "" H 4700 7225 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm13700.pdf" H 4700 7225 50  0001 C CNN
	2    5000 7200
	1    0    0    -1  
$EndComp
Wire Wire Line
	4700 7300 4700 7200
Connection ~ 4700 7300
$Comp
L power:GND #PWR014
U 1 1 61F7DA5E
P 3300 5900
F 0 "#PWR014" H 3300 5650 50  0001 C CNN
F 1 "GND" H 3305 5727 50  0000 C CNN
F 2 "" H 3300 5900 50  0001 C CNN
F 3 "" H 3300 5900 50  0001 C CNN
	1    3300 5900
	1    0    0    -1  
$EndComp
Wire Wire Line
	3400 5800 3300 5800
Wire Wire Line
	3300 5800 3300 5900
Wire Wire Line
	4600 4900 4600 5200
Wire Wire Line
	2800 4900 4600 4900
Connection ~ 4600 5200
Wire Wire Line
	7750 3300 7400 3300
Connection ~ 7750 3300
Connection ~ 7400 3300
Connection ~ 7750 3800
Wire Wire Line
	7750 3800 8550 3800
Wire Wire Line
	7400 4650 10600 4650
Wire Wire Line
	7400 3300 7400 4650
Wire Wire Line
	10600 4650 10600 5600
$Comp
L Device:R_POT RV9
U 1 1 620DBD1F
P 7950 1850
F 0 "RV9" H 7881 1804 50  0000 R CNN
F 1 "B100k" H 7881 1895 50  0000 R CNN
F 2 "" H 7950 1850 50  0001 C CNN
F 3 "~" H 7950 1850 50  0001 C CNN
	1    7950 1850
	1    0    0    1   
$EndComp
Wire Wire Line
	4700 1600 7950 1600
Wire Wire Line
	7950 1600 7950 1700
$Comp
L power:GND #PWR030
U 1 1 620F7920
P 7950 2100
F 0 "#PWR030" H 7950 1850 50  0001 C CNN
F 1 "GND" H 7955 1927 50  0000 C CNN
F 2 "" H 7950 2100 50  0001 C CNN
F 3 "" H 7950 2100 50  0001 C CNN
	1    7950 2100
	1    0    0    -1  
$EndComp
Wire Wire Line
	7950 2000 7950 2100
Wire Wire Line
	8100 1850 11200 1850
Wire Wire Line
	11200 1850 11200 1600
Wire Wire Line
	11200 1600 11400 1600
Text Notes 1350 5800 0    50   ~ 0
Pitch
Text Notes 1800 4800 0    50   ~ 0
CV Att.
Text Notes 3300 3300 0    50   ~ 0
Pitch sweep\nheight
Text Notes 4350 1300 0    50   ~ 0
Impact\ntone control
Text Notes 8050 2050 0    50   ~ 0
Impact\nvolume
Text Notes 12850 1000 0    50   ~ 0
Volume
Text Notes 4500 2650 0    50   ~ 0
Env. decay
Text Notes 4850 4100 0    50   ~ 0
Pitch sweep \nenv. decay
Text Notes 7850 3750 0    50   ~ 0
Envelope\ndirection
Text Notes 7300 7350 0    50   ~ 0
Wave shape
Text Notes 8550 8350 0    50   ~ 0
Sine symmetry\ntrim
$Comp
L power:-12V #PWR0101
U 1 1 6223A9D1
P 6400 5500
F 0 "#PWR0101" H 6400 5600 50  0001 C CNN
F 1 "-12V" H 6415 5673 50  0000 C CNN
F 2 "" H 6400 5500 50  0001 C CNN
F 3 "" H 6400 5500 50  0001 C CNN
	1    6400 5500
	-1   0    0    1   
$EndComp
$Comp
L power:+12V #PWR0102
U 1 1 6223BC13
P 6000 5150
F 0 "#PWR0102" H 6000 5000 50  0001 C CNN
F 1 "+12V" H 6015 5323 50  0000 C CNN
F 2 "" H 6000 5150 50  0001 C CNN
F 3 "" H 6000 5150 50  0001 C CNN
	1    6000 5150
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0103
U 1 1 6223D03D
P 6800 5500
F 0 "#PWR0103" H 6800 5250 50  0001 C CNN
F 1 "GND" H 6805 5327 50  0000 C CNN
F 2 "" H 6800 5500 50  0001 C CNN
F 3 "" H 6800 5500 50  0001 C CNN
	1    6800 5500
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 622408C0
P 6400 5400
F 0 "#FLG0101" H 6400 5475 50  0001 C CNN
F 1 "PWR_FLAG" H 6400 5573 50  0000 C CNN
F 2 "" H 6400 5400 50  0001 C CNN
F 3 "~" H 6400 5400 50  0001 C CNN
	1    6400 5400
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG0102
U 1 1 622C571F
P 6800 5400
F 0 "#FLG0102" H 6800 5475 50  0001 C CNN
F 1 "PWR_FLAG" H 6800 5573 50  0000 C CNN
F 2 "" H 6800 5400 50  0001 C CNN
F 3 "~" H 6800 5400 50  0001 C CNN
	1    6800 5400
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG0103
U 1 1 622CE9AE
P 6000 5250
F 0 "#FLG0103" H 6000 5325 50  0001 C CNN
F 1 "PWR_FLAG" H 6000 5423 50  0000 C CNN
F 2 "" H 6000 5250 50  0001 C CNN
F 3 "~" H 6000 5250 50  0001 C CNN
	1    6000 5250
	-1   0    0    1   
$EndComp
Wire Wire Line
	6000 5250 6000 5150
Wire Wire Line
	6400 5400 6400 5500
Wire Wire Line
	6800 5400 6800 5500
$Comp
L Kraakenstuff:EuroPower J5
U 1 1 6155560B
P 1500 9150
F 0 "J5" H 1525 8735 50  0000 C CNN
F 1 "EuroPower" H 1525 8826 50  0000 C CNN
F 2 "" H 1600 9000 50  0001 C CNN
F 3 "" H 1600 9000 50  0001 C CNN
	1    1500 9150
	-1   0    0    1   
$EndComp
$Comp
L Device:D_Schottky_Small D6
U 1 1 615576E3
P 2100 8950
F 0 "D6" H 2100 8743 50  0000 C CNN
F 1 "1N5189HW" H 2100 8834 50  0000 C CNN
F 2 "" V 2100 8950 50  0001 C CNN
F 3 "~" V 2100 8950 50  0001 C CNN
	1    2100 8950
	-1   0    0    1   
$EndComp
$Comp
L Device:D_Schottky_Small D7
U 1 1 61558444
P 2100 9350
F 0 "D7" H 2100 9557 50  0000 C CNN
F 1 "1N5189HW" H 2100 9466 50  0000 C CNN
F 2 "" V 2100 9350 50  0001 C CNN
F 3 "~" V 2100 9350 50  0001 C CNN
	1    2100 9350
	1    0    0    -1  
$EndComp
$Comp
L Device:CP_Small C9
U 1 1 61559BE4
P 2650 8900
F 0 "C9" V 2425 8900 50  0000 C CNN
F 1 "10u" V 2516 8900 50  0000 C CNN
F 2 "" H 2650 8900 50  0001 C CNN
F 3 "~" H 2650 8900 50  0001 C CNN
	1    2650 8900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2200 8950 2300 8950
Wire Wire Line
	2300 8950 2300 8700
Wire Wire Line
	2300 8700 2650 8700
Wire Wire Line
	2650 8700 2650 8800
Wire Wire Line
	1700 9050 1250 9050
Wire Wire Line
	1700 9150 1250 9150
Wire Wire Line
	1700 9250 1250 9250
Wire Wire Line
	1250 9050 1150 9050
Wire Wire Line
	1150 9050 1150 9150
Wire Wire Line
	1150 9250 1250 9250
Connection ~ 1250 9050
Connection ~ 1250 9250
Wire Wire Line
	1250 9150 1150 9150
Connection ~ 1250 9150
Connection ~ 1150 9150
Wire Wire Line
	1150 9150 1150 9250
Wire Wire Line
	1150 9150 1050 9150
Wire Wire Line
	1050 9150 1050 9250
$Comp
L power:GND #PWR043
U 1 1 616271CB
P 1050 9250
F 0 "#PWR043" H 1050 9000 50  0001 C CNN
F 1 "GND" H 1055 9077 50  0000 C CNN
F 2 "" H 1050 9250 50  0001 C CNN
F 3 "" H 1050 9250 50  0001 C CNN
	1    1050 9250
	1    0    0    -1  
$EndComp
Wire Wire Line
	1700 8950 2000 8950
Wire Wire Line
	1700 9350 2000 9350
Wire Wire Line
	1700 9150 2650 9150
Wire Wire Line
	2650 9150 2650 9000
Connection ~ 1700 9150
$Comp
L Device:CP_Small C10
U 1 1 616713F0
P 2650 9400
F 0 "C10" V 2425 9400 50  0000 C CNN
F 1 "10u" V 2516 9400 50  0000 C CNN
F 2 "" H 2650 9400 50  0001 C CNN
F 3 "~" H 2650 9400 50  0001 C CNN
	1    2650 9400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2650 9150 2650 9300
Connection ~ 2650 9150
Wire Wire Line
	2650 9600 2300 9600
Wire Wire Line
	2300 9600 2300 9350
Wire Wire Line
	2300 9350 2200 9350
Wire Wire Line
	2650 9600 2650 9500
$Comp
L Device:C_Small C11
U 1 1 616D7BD5
P 2850 8900
F 0 "C11" V 2621 8900 50  0000 C CNN
F 1 "100n" V 2712 8900 50  0000 C CNN
F 2 "" H 2850 8900 50  0001 C CNN
F 3 "~" H 2850 8900 50  0001 C CNN
	1    2850 8900
	-1   0    0    1   
$EndComp
Wire Wire Line
	2650 8700 2850 8700
Wire Wire Line
	2850 8700 2850 8800
Connection ~ 2650 8700
Wire Wire Line
	2850 9000 2850 9150
Wire Wire Line
	2850 9150 2650 9150
$Comp
L Device:C_Small C12
U 1 1 6170DF3F
P 2850 9400
F 0 "C12" V 2621 9400 50  0000 C CNN
F 1 "100n" V 2712 9400 50  0000 C CNN
F 2 "" H 2850 9400 50  0001 C CNN
F 3 "~" H 2850 9400 50  0001 C CNN
	1    2850 9400
	-1   0    0    1   
$EndComp
Wire Wire Line
	2850 9150 2850 9300
Connection ~ 2850 9150
Wire Wire Line
	2850 9500 2850 9600
Wire Wire Line
	2850 9600 2650 9600
Connection ~ 2650 9600
$Comp
L Amplifier_Operational:TL074 U1
U 5 1 6174306B
P 3300 9150
F 0 "U1" H 3258 9196 50  0000 L CNN
F 1 "TL074" H 3258 9105 50  0000 L CNN
F 2 "" H 3250 9250 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3350 9350 50  0001 C CNN
	5    3300 9150
	1    0    0    -1  
$EndComp
Wire Wire Line
	2850 8700 3200 8700
Wire Wire Line
	3200 8700 3200 8850
Connection ~ 2850 8700
Wire Wire Line
	2850 9600 3200 9600
Wire Wire Line
	3200 9600 3200 9450
Connection ~ 2850 9600
$Comp
L Device:C_Small C13
U 1 1 6177EF5D
P 3550 8900
F 0 "C13" V 3321 8900 50  0000 C CNN
F 1 "100n" V 3412 8900 50  0000 C CNN
F 2 "" H 3550 8900 50  0001 C CNN
F 3 "~" H 3550 8900 50  0001 C CNN
	1    3550 8900
	-1   0    0    1   
$EndComp
Wire Wire Line
	3550 8700 3550 8800
Wire Wire Line
	3550 9000 3550 9150
$Comp
L Device:C_Small C14
U 1 1 6177EF66
P 3550 9400
F 0 "C14" V 3321 9400 50  0000 C CNN
F 1 "100n" V 3412 9400 50  0000 C CNN
F 2 "" H 3550 9400 50  0001 C CNN
F 3 "~" H 3550 9400 50  0001 C CNN
	1    3550 9400
	-1   0    0    1   
$EndComp
Wire Wire Line
	3550 9150 3550 9300
Connection ~ 3550 9150
Wire Wire Line
	3550 9500 3550 9600
Wire Wire Line
	3200 8700 3550 8700
Connection ~ 3200 8700
Wire Wire Line
	3200 9600 3550 9600
Connection ~ 3200 9600
$Comp
L Amplifier_Operational:TL074 U2
U 5 1 617D89B9
P 4000 9150
F 0 "U2" H 3958 9196 50  0000 L CNN
F 1 "TL074" H 3958 9105 50  0000 L CNN
F 2 "" H 3950 9250 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 4050 9350 50  0001 C CNN
	5    4000 9150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3550 8700 3900 8700
Wire Wire Line
	3900 8700 3900 8850
Wire Wire Line
	3550 9600 3900 9600
Wire Wire Line
	3900 9600 3900 9450
$Comp
L Device:C_Small C15
U 1 1 617D89C3
P 4250 8900
F 0 "C15" V 4021 8900 50  0000 C CNN
F 1 "100n" V 4112 8900 50  0000 C CNN
F 2 "" H 4250 8900 50  0001 C CNN
F 3 "~" H 4250 8900 50  0001 C CNN
	1    4250 8900
	-1   0    0    1   
$EndComp
Wire Wire Line
	4250 8700 4250 8800
Wire Wire Line
	4250 9000 4250 9150
$Comp
L Device:C_Small C16
U 1 1 617D89CC
P 4250 9400
F 0 "C16" V 4021 9400 50  0000 C CNN
F 1 "100n" V 4112 9400 50  0000 C CNN
F 2 "" H 4250 9400 50  0001 C CNN
F 3 "~" H 4250 9400 50  0001 C CNN
	1    4250 9400
	-1   0    0    1   
$EndComp
Wire Wire Line
	4250 9150 4250 9300
Connection ~ 4250 9150
Wire Wire Line
	4250 9500 4250 9600
Wire Wire Line
	3900 8700 4250 8700
Connection ~ 3900 8700
Wire Wire Line
	3900 9600 4250 9600
Connection ~ 3900 9600
Wire Wire Line
	2850 9150 3550 9150
Wire Wire Line
	3550 9150 4250 9150
$Comp
L Amplifier_Operational:LM13700 U4
U 5 1 6184B80E
P 4750 9150
F 0 "U4" H 4708 9196 50  0000 L CNN
F 1 "LM13700" H 4708 9105 50  0000 L CNN
F 2 "" H 4450 9175 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm13700.pdf" H 4450 9175 50  0001 C CNN
	5    4750 9150
	1    0    0    -1  
$EndComp
Wire Wire Line
	4250 9600 4650 9600
Wire Wire Line
	4650 9600 4650 9450
Connection ~ 4250 9600
Wire Wire Line
	4250 8700 4650 8700
Wire Wire Line
	4650 8700 4650 8850
Connection ~ 4250 8700
$Comp
L power:+12V #PWR044
U 1 1 6189697E
P 4650 8600
F 0 "#PWR044" H 4650 8450 50  0001 C CNN
F 1 "+12V" H 4665 8773 50  0000 C CNN
F 2 "" H 4650 8600 50  0001 C CNN
F 3 "" H 4650 8600 50  0001 C CNN
	1    4650 8600
	1    0    0    -1  
$EndComp
$Comp
L power:-12V #PWR045
U 1 1 618A11A2
P 4650 9700
F 0 "#PWR045" H 4650 9800 50  0001 C CNN
F 1 "-12V" H 4665 9873 50  0000 C CNN
F 2 "" H 4650 9700 50  0001 C CNN
F 3 "" H 4650 9700 50  0001 C CNN
	1    4650 9700
	-1   0    0    1   
$EndComp
Wire Wire Line
	4650 9600 4650 9700
Connection ~ 4650 9600
Wire Wire Line
	4650 8700 4650 8600
Connection ~ 4650 8700
Connection ~ 3550 8700
Connection ~ 3550 9600
Wire Wire Line
	1700 9350 1250 9350
Connection ~ 1700 9350
Wire Wire Line
	1700 8950 1250 8950
Connection ~ 1700 8950
$EndSCHEMATC