c3lingo-interpreter-unit/schematics/c3lingo_unit-assembly/c3lingo_unit-channel/c3lingo_unit-channel.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 3 5
Title "c3lingo interpeter unit -- channel strip"
Date "2021-09-02"
Rev "v0.2.1"
Comp "Jannik Beyerstedt (jtbx)"
Comment1 "Prototype 1 (with errata)"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L power:GND #PWR0349
U 1 1 60F119DE
P 8500 11000
AR Path="/60AA662F/60F119DE" Ref="#PWR0349"  Part="1" 
AR Path="/60AE7597/60F119DE" Ref="#PWR0449"  Part="1" 
AR Path="/60AE80F3/60F119DE" Ref="#PWR0549"  Part="1" 
AR Path="/60F119DE" Ref="#PWR0101"  Part="1" 
F 0 "#PWR0349" H 8500 10750 50  0001 C CNN
F 1 "GND" H 8505 10827 50  0000 C CNN
F 2 "" H 8500 11000 50  0001 C CNN
F 3 "" H 8500 11000 50  0001 C CNN
	1    8500 11000
	1    0    0    -1  
$EndComp
$Comp
L power:+15V #PWR0348
U 1 1 602B7044
P 8700 10900
AR Path="/60AA662F/602B7044" Ref="#PWR0348"  Part="1" 
AR Path="/60AE7597/602B7044" Ref="#PWR0448"  Part="1" 
AR Path="/60AE80F3/602B7044" Ref="#PWR0548"  Part="1" 
AR Path="/602B7044" Ref="#PWR0102"  Part="1" 
F 0 "#PWR0348" H 8700 10750 50  0001 C CNN
F 1 "+15V" H 8715 11073 50  0000 C CNN
F 2 "" H 8700 10900 50  0001 C CNN
F 3 "" H 8700 10900 50  0001 C CNN
	1    8700 10900
	-1   0    0    1   
$EndComp
$Comp
L power:-15V #PWR0347
U 1 1 602B7D59
P 8700 10600
AR Path="/60AA662F/602B7D59" Ref="#PWR0347"  Part="1" 
AR Path="/60AE7597/602B7D59" Ref="#PWR0447"  Part="1" 
AR Path="/60AE80F3/602B7D59" Ref="#PWR0547"  Part="1" 
AR Path="/602B7D59" Ref="#PWR0103"  Part="1" 
F 0 "#PWR0347" H 8700 10700 50  0001 C CNN
F 1 "-15V" H 8715 10773 50  0000 C CNN
F 2 "" H 8700 10600 50  0001 C CNN
F 3 "" H 8700 10600 50  0001 C CNN
	1    8700 10600
	1    0    0    -1  
$EndComp
Wire Wire Line
	8700 10900 8700 10800
Wire Wire Line
	8500 10900 8500 11000
$Comp
L Connector:Conn_01x04_Male J303
U 1 1 60F119DD
P 8000 10800
AR Path="/60AA662F/60F119DD" Ref="J303"  Part="1" 
AR Path="/60AE7597/60F119DD" Ref="J403"  Part="1" 
AR Path="/60AE80F3/60F119DD" Ref="J503"  Part="1" 
AR Path="/60F119DD" Ref="J103"  Part="1" 
F 0 "J303" H 7973 10732 50  0000 R CNN
F 1 "PowerSupply" H 7973 10823 50  0000 R CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_PTSM-0,5-4-2.5-H-THR_1x04_P2.50mm_Horizontal" H 8000 10800 50  0001 C CNN
F 3 "" H 8000 10800 50  0001 C CNN
F 4 "PTSM 0,5/ 4-2,5-H THR" H 8000 10800 50  0001 C CNN "Model"
	1    8000 10800
	1    0    0    1   
$EndComp
Wire Wire Line
	8700 10700 8700 10600
Wire Wire Line
	8200 10800 8700 10800
Wire Wire Line
	8200 10900 8500 10900
$Comp
L Comparator:LM339 U305
U 5 1 60B42758
P 7100 8400
AR Path="/60AA662F/60B42758" Ref="U305"  Part="5" 
AR Path="/60AE7597/60B42758" Ref="U405"  Part="5" 
AR Path="/60AE80F3/60B42758" Ref="U505"  Part="5" 
AR Path="/60B42758" Ref="U105"  Part="5" 
F 0 "U305" H 7058 8446 50  0000 L CNN
F 1 "LM339" H 7058 8355 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7050 8500 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 7150 8600 50  0001 C CNN
F 4 "+DIP-14 Socket" H 7100 8400 50  0001 C CNN "Model"
	5    7100 8400
	0    -1   -1   0   
$EndComp
Text Notes 1850 8000 0    50   ~ 0
Buffer/ Rectifier\nGain: 15\n(3.9 + 12 dB for\ntrim pot. headroom)
$Comp
L Comparator:LM339 U306
U 5 1 60B42907
P 9700 8400
AR Path="/60AA662F/60B42907" Ref="U306"  Part="5" 
AR Path="/60AE7597/60B42907" Ref="U406"  Part="5" 
AR Path="/60AE80F3/60B42907" Ref="U506"  Part="5" 
AR Path="/60B42907" Ref="U106"  Part="5" 
F 0 "U306" H 9658 8446 50  0000 L CNN
F 1 "LM339" H 9658 8355 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 9650 8500 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 9750 8600 50  0001 C CNN
F 4 "+DIP-14 Socket" H 9700 8400 50  0001 C CNN "Model"
	5    9700 8400
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U307
U 5 1 60B4290D
P 12300 8400
AR Path="/60AA662F/60B4290D" Ref="U307"  Part="5" 
AR Path="/60AE7597/60B4290D" Ref="U407"  Part="5" 
AR Path="/60AE80F3/60B4290D" Ref="U507"  Part="5" 
AR Path="/60B4290D" Ref="U107"  Part="5" 
F 0 "U307" H 12258 8446 50  0000 L CNN
F 1 "LM339" H 12258 8355 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 12250 8500 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 12350 8600 50  0001 C CNN
F 4 "+DIP-14 Socket" H 12300 8400 50  0001 C CNN "Model"
	5    12300 8400
	0    -1   -1   0   
$EndComp
$Comp
L Amplifier_Operational:LM358 U304
U 3 1 60B42934
P 3050 8600
AR Path="/60AA662F/60B42934" Ref="U304"  Part="3" 
AR Path="/60AE7597/60B42934" Ref="U404"  Part="3" 
AR Path="/60AE80F3/60B42934" Ref="U504"  Part="3" 
AR Path="/60B42934" Ref="U104"  Part="3" 
F 0 "U304" V 2725 8600 50  0000 C CNN
F 1 "LM833N" V 2816 8600 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 3050 8600 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm833.pdf" H 3050 8600 50  0001 C CNN
F 4 "+DIP-8 Socket" H 3050 8600 50  0001 C CNN "Model"
	3    3050 8600
	0    1    1    0   
$EndComp
$Comp
L Device:C C322
U 1 1 60B4293A
P 3350 8750
AR Path="/60AA662F/60B4293A" Ref="C322"  Part="1" 
AR Path="/60AE7597/60B4293A" Ref="C422"  Part="1" 
AR Path="/60AE80F3/60B4293A" Ref="C522"  Part="1" 
AR Path="/60B4293A" Ref="C122"  Part="1" 
F 0 "C322" H 3235 8704 50  0000 R CNN
F 1 "100nF" H 3235 8795 50  0000 R CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 3388 8600 50  0001 C CNN
F 3 "~" H 3350 8750 50  0001 C CNN
	1    3350 8750
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0345
U 1 1 60B42940
P 2750 9000
AR Path="/60AA662F/60B42940" Ref="#PWR0345"  Part="1" 
AR Path="/60AE7597/60B42940" Ref="#PWR0445"  Part="1" 
AR Path="/60AE80F3/60B42940" Ref="#PWR0545"  Part="1" 
AR Path="/60B42940" Ref="#PWR0104"  Part="1" 
F 0 "#PWR0345" H 2750 8750 50  0001 C CNN
F 1 "GND" H 2755 8827 50  0000 C CNN
F 2 "" H 2750 9000 50  0001 C CNN
F 3 "" H 2750 9000 50  0001 C CNN
	1    2750 9000
	1    0    0    -1  
$EndComp
Wire Wire Line
	2900 6500 2700 6500
Wire Wire Line
	4000 6500 3200 6500
Wire Wire Line
	3900 7500 4000 7500
$Comp
L Device:R R320
U 1 1 60B42949
P 3050 6500
AR Path="/60AA662F/60B42949" Ref="R320"  Part="1" 
AR Path="/60AE7597/60B42949" Ref="R420"  Part="1" 
AR Path="/60AE80F3/60B42949" Ref="R520"  Part="1" 
AR Path="/60B42949" Ref="R120"  Part="1" 
F 0 "R320" V 2843 6500 50  0000 C CNN
F 1 "15K" V 2934 6500 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 2980 6500 50  0001 C CNN
F 3 "~" H 3050 6500 50  0001 C CNN
	1    3050 6500
	0    1    1    0   
$EndComp
Wire Wire Line
	2700 7400 2800 7400
Wire Wire Line
	2900 6900 2700 6900
Wire Wire Line
	3500 7500 3600 7500
Connection ~ 3500 7500
Wire Wire Line
	3500 6900 3200 6900
Wire Wire Line
	3500 7500 3500 6900
$Comp
L Device:D D319
U 1 1 60B42955
P 3750 7500
AR Path="/60AA662F/60B42955" Ref="D319"  Part="1" 
AR Path="/60AE7597/60B42955" Ref="D419"  Part="1" 
AR Path="/60AE80F3/60B42955" Ref="D519"  Part="1" 
AR Path="/60B42955" Ref="D119"  Part="1" 
F 0 "D319" H 3750 7283 50  0000 C CNN
F 1 "1N4148" H 3750 7374 50  0000 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal" H 3750 7500 50  0001 C CNN
F 3 "~" H 3750 7500 50  0001 C CNN
	1    3750 7500
	-1   0    0    1   
$EndComp
$Comp
L Device:D D318
U 1 1 60B4295B
P 3050 6900
AR Path="/60AA662F/60B4295B" Ref="D318"  Part="1" 
AR Path="/60AE7597/60B4295B" Ref="D418"  Part="1" 
AR Path="/60AE80F3/60B4295B" Ref="D518"  Part="1" 
AR Path="/60B4295B" Ref="D118"  Part="1" 
F 0 "D318" H 3050 6683 50  0000 C CNN
F 1 "1N4148" H 3050 6774 50  0000 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal" H 3050 6900 50  0001 C CNN
F 3 "~" H 3050 6900 50  0001 C CNN
	1    3050 6900
	-1   0    0    1   
$EndComp
Wire Wire Line
	1550 7150 1550 7250
Wire Wire Line
	1200 7150 1550 7150
$Comp
L Device:R_POT RV306
U 1 1 60B42964
P 1550 7400
AR Path="/60AA662F/60B42964" Ref="RV306"  Part="1" 
AR Path="/60AE7597/60B42964" Ref="RV406"  Part="1" 
AR Path="/60AE80F3/60B42964" Ref="RV506"  Part="1" 
AR Path="/60B42964" Ref="RV106"  Part="1" 
F 0 "RV306" H 1481 7446 50  0000 R CNN
F 1 "50K" H 1481 7355 50  0000 R CNN
F 2 "Potentiometer_THT:Potentiometer_Vishay_T73XX_Horizontal" H 1550 7400 50  0001 C CNN
F 3 "https://www.vishay.com/docs/57028/64.pdf" H 1550 7400 50  0001 C CNN
F 4 "Vishay M64Y503" H 1550 7400 50  0001 C CNN "Model"
	1    1550 7400
	1    0    0    -1  
$EndComp
Wire Wire Line
	3400 7500 3500 7500
$Comp
L power:GND #PWR0331
U 1 1 60B4296B
P 2700 7700
AR Path="/60AA662F/60B4296B" Ref="#PWR0331"  Part="1" 
AR Path="/60AE7597/60B4296B" Ref="#PWR0431"  Part="1" 
AR Path="/60AE80F3/60B4296B" Ref="#PWR0531"  Part="1" 
AR Path="/60B4296B" Ref="#PWR0105"  Part="1" 
F 0 "#PWR0331" H 2700 7450 50  0001 C CNN
F 1 "GND" H 2705 7527 50  0000 C CNN
F 2 "" H 2700 7700 50  0001 C CNN
F 3 "" H 2700 7700 50  0001 C CNN
	1    2700 7700
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:LM358 U304
U 2 1 60B42971
P 3100 7500
AR Path="/60AA662F/60B42971" Ref="U304"  Part="2" 
AR Path="/60AE7597/60B42971" Ref="U404"  Part="2" 
AR Path="/60AE80F3/60B42971" Ref="U504"  Part="2" 
AR Path="/60B42971" Ref="U104"  Part="2" 
F 0 "U304" H 3100 7133 50  0000 C CNN
F 1 "LM833N" H 3100 7224 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 3100 7500 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm833.pdf" H 3100 7500 50  0001 C CNN
F 4 "+DIP-8 Socket" H 3100 7500 50  0001 C CNN "Model"
	2    3100 7500
	1    0    0    1   
$EndComp
$Comp
L Device:CP C319
U 1 1 60B42977
P 1950 7400
AR Path="/60AA662F/60B42977" Ref="C319"  Part="1" 
AR Path="/60AE7597/60B42977" Ref="C419"  Part="1" 
AR Path="/60AE80F3/60B42977" Ref="C519"  Part="1" 
AR Path="/60B42977" Ref="C119"  Part="1" 
F 0 "C319" V 2205 7400 50  0000 C CNN
F 1 "1uF" V 2114 7400 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 1988 7250 50  0001 C CNN
F 3 "~" H 1950 7400 50  0001 C CNN
	1    1950 7400
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R333
U 1 1 60B4297D
P 2350 7400
AR Path="/60AA662F/60B4297D" Ref="R333"  Part="1" 
AR Path="/60AE7597/60B4297D" Ref="R433"  Part="1" 
AR Path="/60AE80F3/60B4297D" Ref="R533"  Part="1" 
AR Path="/60B4297D" Ref="R133"  Part="1" 
F 0 "R333" V 2557 7400 50  0000 C CNN
F 1 "1K" V 2466 7400 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 2280 7400 50  0001 C CNN
F 3 "~" H 2350 7400 50  0001 C CNN
	1    2350 7400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2700 6900 2700 7400
Wire Wire Line
	4000 6500 4000 7500
Wire Wire Line
	2700 6500 2700 6900
Connection ~ 2700 6900
Wire Wire Line
	2800 7600 2700 7600
Wire Wire Line
	2700 7600 2700 7700
Wire Wire Line
	2700 7400 2500 7400
Connection ~ 2700 7400
Wire Wire Line
	2200 7400 2100 7400
Wire Wire Line
	1700 7400 1800 7400
$Comp
L power:GND #PWR0330
U 1 1 60B4298D
P 1550 7650
AR Path="/60AA662F/60B4298D" Ref="#PWR0330"  Part="1" 
AR Path="/60AE7597/60B4298D" Ref="#PWR0430"  Part="1" 
AR Path="/60AE80F3/60B4298D" Ref="#PWR0530"  Part="1" 
AR Path="/60B4298D" Ref="#PWR0106"  Part="1" 
F 0 "#PWR0330" H 1550 7400 50  0001 C CNN
F 1 "GND" H 1555 7477 50  0000 C CNN
F 2 "" H 1550 7650 50  0001 C CNN
F 3 "" H 1550 7650 50  0001 C CNN
	1    1550 7650
	1    0    0    -1  
$EndComp
Wire Wire Line
	1550 7550 1550 7650
$Comp
L Device:C C323
U 1 1 60B42998
P 6800 8750
AR Path="/60AA662F/60B42998" Ref="C323"  Part="1" 
AR Path="/60AE7597/60B42998" Ref="C423"  Part="1" 
AR Path="/60AE80F3/60B42998" Ref="C523"  Part="1" 
AR Path="/60B42998" Ref="C123"  Part="1" 
F 0 "C323" H 6915 8796 50  0000 L CNN
F 1 "100nF" H 6915 8705 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 6838 8600 50  0001 C CNN
F 3 "~" H 6800 8750 50  0001 C CNN
	1    6800 8750
	1    0    0    -1  
$EndComp
$Comp
L power:+15V #PWR0335
U 1 1 60B429A6
P 3350 8400
AR Path="/60AA662F/60B429A6" Ref="#PWR0335"  Part="1" 
AR Path="/60AE7597/60B429A6" Ref="#PWR0435"  Part="1" 
AR Path="/60AE80F3/60B429A6" Ref="#PWR0535"  Part="1" 
AR Path="/60B429A6" Ref="#PWR0107"  Part="1" 
F 0 "#PWR0335" H 3350 8250 50  0001 C CNN
F 1 "+15V" H 3365 8573 50  0000 C CNN
F 2 "" H 3350 8400 50  0001 C CNN
F 3 "" H 3350 8400 50  0001 C CNN
	1    3350 8400
	1    0    0    -1  
$EndComp
$Comp
L power:+15V #PWR0336
U 1 1 60B429AC
P 6800 8400
AR Path="/60AA662F/60B429AC" Ref="#PWR0336"  Part="1" 
AR Path="/60AE7597/60B429AC" Ref="#PWR0436"  Part="1" 
AR Path="/60AE80F3/60B429AC" Ref="#PWR0536"  Part="1" 
AR Path="/60B429AC" Ref="#PWR0108"  Part="1" 
F 0 "#PWR0336" H 6800 8250 50  0001 C CNN
F 1 "+15V" H 6815 8573 50  0000 C CNN
F 2 "" H 6800 8400 50  0001 C CNN
F 3 "" H 6800 8400 50  0001 C CNN
	1    6800 8400
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0339
U 1 1 60B429B2
P 6800 8900
AR Path="/60AA662F/60B429B2" Ref="#PWR0339"  Part="1" 
AR Path="/60AE7597/60B429B2" Ref="#PWR0439"  Part="1" 
AR Path="/60AE80F3/60B429B2" Ref="#PWR0539"  Part="1" 
AR Path="/60B429B2" Ref="#PWR0109"  Part="1" 
F 0 "#PWR0339" H 6800 8650 50  0001 C CNN
F 1 "GND" H 6805 8727 50  0000 C CNN
F 2 "" H 6800 8900 50  0001 C CNN
F 3 "" H 6800 8900 50  0001 C CNN
	1    6800 8900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0340
U 1 1 60B429C0
P 7400 8900
AR Path="/60AA662F/60B429C0" Ref="#PWR0340"  Part="1" 
AR Path="/60AE7597/60B429C0" Ref="#PWR0440"  Part="1" 
AR Path="/60AE80F3/60B429C0" Ref="#PWR0540"  Part="1" 
AR Path="/60B429C0" Ref="#PWR0110"  Part="1" 
F 0 "#PWR0340" H 7400 8650 50  0001 C CNN
F 1 "GND" H 7405 8727 50  0000 C CNN
F 2 "" H 7400 8900 50  0001 C CNN
F 3 "" H 7400 8900 50  0001 C CNN
	1    7400 8900
	1    0    0    -1  
$EndComp
Wire Wire Line
	6800 8400 6800 8500
Wire Wire Line
	6800 8500 6800 8600
Connection ~ 6800 8500
Wire Wire Line
	7400 8500 7400 8900
$Comp
L Device:C C324
U 1 1 60B429CA
P 9400 8750
AR Path="/60AA662F/60B429CA" Ref="C324"  Part="1" 
AR Path="/60AE7597/60B429CA" Ref="C424"  Part="1" 
AR Path="/60AE80F3/60B429CA" Ref="C524"  Part="1" 
AR Path="/60B429CA" Ref="C124"  Part="1" 
F 0 "C324" H 9515 8796 50  0000 L CNN
F 1 "100nF" H 9515 8705 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 9438 8600 50  0001 C CNN
F 3 "~" H 9400 8750 50  0001 C CNN
	1    9400 8750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0341
U 1 1 60B429D0
P 9400 8900
AR Path="/60AA662F/60B429D0" Ref="#PWR0341"  Part="1" 
AR Path="/60AE7597/60B429D0" Ref="#PWR0441"  Part="1" 
AR Path="/60AE80F3/60B429D0" Ref="#PWR0541"  Part="1" 
AR Path="/60B429D0" Ref="#PWR0111"  Part="1" 
F 0 "#PWR0341" H 9400 8650 50  0001 C CNN
F 1 "GND" H 9405 8727 50  0000 C CNN
F 2 "" H 9400 8900 50  0001 C CNN
F 3 "" H 9400 8900 50  0001 C CNN
	1    9400 8900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0342
U 1 1 60B429D6
P 10000 8900
AR Path="/60AA662F/60B429D6" Ref="#PWR0342"  Part="1" 
AR Path="/60AE7597/60B429D6" Ref="#PWR0442"  Part="1" 
AR Path="/60AE80F3/60B429D6" Ref="#PWR0542"  Part="1" 
AR Path="/60B429D6" Ref="#PWR0112"  Part="1" 
F 0 "#PWR0342" H 10000 8650 50  0001 C CNN
F 1 "GND" H 10005 8727 50  0000 C CNN
F 2 "" H 10000 8900 50  0001 C CNN
F 3 "" H 10000 8900 50  0001 C CNN
	1    10000 8900
	1    0    0    -1  
$EndComp
Wire Wire Line
	9400 8500 9400 8600
Wire Wire Line
	10000 8500 10000 8900
$Comp
L power:+15V #PWR0337
U 1 1 60B429DE
P 9400 8400
AR Path="/60AA662F/60B429DE" Ref="#PWR0337"  Part="1" 
AR Path="/60AE7597/60B429DE" Ref="#PWR0437"  Part="1" 
AR Path="/60AE80F3/60B429DE" Ref="#PWR0537"  Part="1" 
AR Path="/60B429DE" Ref="#PWR0113"  Part="1" 
F 0 "#PWR0337" H 9400 8250 50  0001 C CNN
F 1 "+15V" H 9415 8573 50  0000 C CNN
F 2 "" H 9400 8400 50  0001 C CNN
F 3 "" H 9400 8400 50  0001 C CNN
	1    9400 8400
	1    0    0    -1  
$EndComp
$Comp
L Device:C C325
U 1 1 60B429F3
P 12000 8750
AR Path="/60AA662F/60B429F3" Ref="C325"  Part="1" 
AR Path="/60AE7597/60B429F3" Ref="C425"  Part="1" 
AR Path="/60AE80F3/60B429F3" Ref="C525"  Part="1" 
AR Path="/60B429F3" Ref="C125"  Part="1" 
F 0 "C325" H 12115 8796 50  0000 L CNN
F 1 "100nF" H 12115 8705 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 12038 8600 50  0001 C CNN
F 3 "~" H 12000 8750 50  0001 C CNN
	1    12000 8750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0343
U 1 1 60B429F9
P 12000 8900
AR Path="/60AA662F/60B429F9" Ref="#PWR0343"  Part="1" 
AR Path="/60AE7597/60B429F9" Ref="#PWR0443"  Part="1" 
AR Path="/60AE80F3/60B429F9" Ref="#PWR0543"  Part="1" 
AR Path="/60B429F9" Ref="#PWR0114"  Part="1" 
F 0 "#PWR0343" H 12000 8650 50  0001 C CNN
F 1 "GND" H 12005 8727 50  0000 C CNN
F 2 "" H 12000 8900 50  0001 C CNN
F 3 "" H 12000 8900 50  0001 C CNN
	1    12000 8900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0344
U 1 1 60B429FF
P 12600 8900
AR Path="/60AA662F/60B429FF" Ref="#PWR0344"  Part="1" 
AR Path="/60AE7597/60B429FF" Ref="#PWR0444"  Part="1" 
AR Path="/60AE80F3/60B429FF" Ref="#PWR0544"  Part="1" 
AR Path="/60B429FF" Ref="#PWR0115"  Part="1" 
F 0 "#PWR0344" H 12600 8650 50  0001 C CNN
F 1 "GND" H 12605 8727 50  0000 C CNN
F 2 "" H 12600 8900 50  0001 C CNN
F 3 "" H 12600 8900 50  0001 C CNN
	1    12600 8900
	1    0    0    -1  
$EndComp
Wire Wire Line
	12600 8500 12600 8900
$Comp
L power:+15V #PWR0338
U 1 1 60B42A06
P 12000 8400
AR Path="/60AA662F/60B42A06" Ref="#PWR0338"  Part="1" 
AR Path="/60AE7597/60B42A06" Ref="#PWR0438"  Part="1" 
AR Path="/60AE80F3/60B42A06" Ref="#PWR0538"  Part="1" 
AR Path="/60B42A06" Ref="#PWR0116"  Part="1" 
F 0 "#PWR0338" H 12000 8250 50  0001 C CNN
F 1 "+15V" H 12015 8573 50  0000 C CNN
F 2 "" H 12000 8400 50  0001 C CNN
F 3 "" H 12000 8400 50  0001 C CNN
	1    12000 8400
	1    0    0    -1  
$EndComp
Wire Wire Line
	12000 8400 12000 8500
Wire Wire Line
	12000 8500 12000 8600
Connection ~ 12000 8500
Wire Wire Line
	9400 8400 9400 8500
Connection ~ 9400 8500
$Comp
L power:GND #PWR0346
U 1 1 60B42A17
P 3350 9000
AR Path="/60AA662F/60B42A17" Ref="#PWR0346"  Part="1" 
AR Path="/60AE7597/60B42A17" Ref="#PWR0446"  Part="1" 
AR Path="/60AE80F3/60B42A17" Ref="#PWR0546"  Part="1" 
AR Path="/60B42A17" Ref="#PWR0117"  Part="1" 
F 0 "#PWR0346" H 3350 8750 50  0001 C CNN
F 1 "GND" H 3355 8827 50  0000 C CNN
F 2 "" H 3350 9000 50  0001 C CNN
F 3 "" H 3350 9000 50  0001 C CNN
	1    3350 9000
	1    0    0    -1  
$EndComp
Wire Wire Line
	3350 8500 3350 8600
Wire Wire Line
	3350 8900 3350 9000
Text Notes 4950 7150 0    50   ~ 0
For Input Gain of 3.9\nand VCC = 15V:\n2700 Ω: 11,99 dBu\n3900 Ω: 8,12 dBu\n2700 Ω: 3,86 dBu\n1500 Ω: 0,1 dBu\n1000 Ω: -3,8 dBu\n680 Ω: -8,03 dBu\n390 Ω: -11,89 dBu\n270 Ω: -16,17 dBu\n150 Ω: -19,95 dBu\n100 Ω: -23,87 dBu\n68 Ω: -28,15 dBu\n39 Ω: -32,08 dBu\n68 Ω to ground\n\n1.11 mA @ 15V\n(13.565 kΩ)
Wire Wire Line
	3350 8400 3350 8500
Connection ~ 3350 8500
$Comp
L power:-15V #PWR0334
U 1 1 60B42A22
P 2750 8400
AR Path="/60AA662F/60B42A22" Ref="#PWR0334"  Part="1" 
AR Path="/60AE7597/60B42A22" Ref="#PWR0434"  Part="1" 
AR Path="/60AE80F3/60B42A22" Ref="#PWR0534"  Part="1" 
AR Path="/60B42A22" Ref="#PWR0118"  Part="1" 
F 0 "#PWR0334" H 2750 8500 50  0001 C CNN
F 1 "-15V" H 2765 8573 50  0000 C CNN
F 2 "" H 2750 8400 50  0001 C CNN
F 3 "" H 2750 8400 50  0001 C CNN
	1    2750 8400
	1    0    0    -1  
$EndComp
$Comp
L Device:C C321
U 1 1 60B42A28
P 2750 8750
AR Path="/60AA662F/60B42A28" Ref="C321"  Part="1" 
AR Path="/60AE7597/60B42A28" Ref="C421"  Part="1" 
AR Path="/60AE80F3/60B42A28" Ref="C521"  Part="1" 
AR Path="/60B42A28" Ref="C121"  Part="1" 
F 0 "C321" H 2635 8704 50  0000 R CNN
F 1 "100nF" H 2635 8795 50  0000 R CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 2788 8600 50  0001 C CNN
F 3 "~" H 2750 8750 50  0001 C CNN
	1    2750 8750
	-1   0    0    1   
$EndComp
Wire Wire Line
	2750 8400 2750 8500
Wire Wire Line
	2750 8500 2750 8600
Connection ~ 2750 8500
Wire Wire Line
	2750 8900 2750 9000
$Comp
L Connector:Conn_01x02_Male J305
U 1 1 60B4299F
P 9500 10900
AR Path="/60AA662F/60B4299F" Ref="J305"  Part="1" 
AR Path="/60AE7597/60B4299F" Ref="J405"  Part="1" 
AR Path="/60AE80F3/60B4299F" Ref="J505"  Part="1" 
AR Path="/60B4299F" Ref="J105"  Part="1" 
F 0 "J305" H 9473 10782 50  0000 R CNN
F 1 "Output" H 9473 10873 50  0000 R CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_PTSM-0,5-2-2.5-H-THR_1x02_P2.50mm_Horizontal" H 9500 10900 50  0001 C CNN
F 3 "~" H 9500 10900 50  0001 C CNN
F 4 "PTSM 0,5/ 2-2,5-H THR" H 9500 10900 50  0001 C CNN "Model"
	1    9500 10900
	1    0    0    1   
$EndComp
$Comp
L Connector:Conn_01x04_Male J304
U 1 1 60C80007
P 10500 10800
AR Path="/60AA662F/60C80007" Ref="J304"  Part="1" 
AR Path="/60AE7597/60C80007" Ref="J404"  Part="1" 
AR Path="/60AE80F3/60C80007" Ref="J504"  Part="1" 
AR Path="/60C80007" Ref="J104"  Part="1" 
F 0 "J304" H 10473 10682 50  0000 R CNN
F 1 "Inputs" H 10473 10773 50  0000 R CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_PTSM-0,5-4-2.5-H-THR_1x04_P2.50mm_Horizontal" H 10500 10800 50  0001 C CNN
F 3 "~" H 10500 10800 50  0001 C CNN
F 4 "PTSM 0,5/ 4-2,5-H THR" H 10500 10800 50  0001 C CNN "Model"
	1    10500 10800
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR0350
U 1 1 612FE5C9
P 9900 11000
AR Path="/60AA662F/612FE5C9" Ref="#PWR0350"  Part="1" 
AR Path="/60AE7597/612FE5C9" Ref="#PWR0450"  Part="1" 
AR Path="/60AE80F3/612FE5C9" Ref="#PWR0550"  Part="1" 
AR Path="/612FE5C9" Ref="#PWR0119"  Part="1" 
F 0 "#PWR0350" H 9900 10750 50  0001 C CNN
F 1 "GND" H 9905 10827 50  0000 C CNN
F 2 "" H 9900 11000 50  0001 C CNN
F 3 "" H 9900 11000 50  0001 C CNN
	1    9900 11000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0351
U 1 1 613D850D
P 10900 11000
AR Path="/60AA662F/613D850D" Ref="#PWR0351"  Part="1" 
AR Path="/60AE7597/613D850D" Ref="#PWR0451"  Part="1" 
AR Path="/60AE80F3/613D850D" Ref="#PWR0551"  Part="1" 
AR Path="/613D850D" Ref="#PWR0120"  Part="1" 
F 0 "#PWR0351" H 10900 10750 50  0001 C CNN
F 1 "GND" H 10905 10827 50  0000 C CNN
F 2 "" H 10900 11000 50  0001 C CNN
F 3 "" H 10900 11000 50  0001 C CNN
	1    10900 11000
	1    0    0    -1  
$EndComp
Text HLabel 9900 10500 1    50   Input ~ 0
PreampOut
Text HLabel 11200 10500 1    50   Output ~ 0
Monitor_Stage
Text HLabel 10900 10500 1    50   Output ~ 0
Monitor_OthersB
Text HLabel 11050 10500 1    50   Output ~ 0
Monitor_OthersA
Wire Wire Line
	9700 10900 9900 10900
Wire Wire Line
	9900 10900 9900 11000
Wire Wire Line
	10700 10600 10900 10600
Wire Wire Line
	10900 10600 10900 10500
Wire Wire Line
	10700 10700 11050 10700
Wire Wire Line
	11050 10700 11050 10500
Wire Wire Line
	10700 10800 11200 10800
Wire Wire Line
	11200 10800 11200 10500
Wire Wire Line
	10700 10900 10900 10900
Wire Wire Line
	10900 10900 10900 11000
Wire Wire Line
	9700 10800 9900 10800
Wire Wire Line
	9900 10800 9900 10500
Text Notes 4250 8450 0    50   ~ 0
Signal Smoothing\n==> DNP (not required)
$Comp
L Device:R R347
U 1 1 60B4292A
P 4900 7750
AR Path="/60AA662F/60B4292A" Ref="R347"  Part="1" 
AR Path="/60AE7597/60B4292A" Ref="R447"  Part="1" 
AR Path="/60AE80F3/60B4292A" Ref="R547"  Part="1" 
AR Path="/60B4292A" Ref="R147"  Part="1" 
F 0 "R347" H 4970 7796 50  0000 L CNN
F 1 "100K" H 4970 7705 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 4830 7750 50  0001 C CNN
F 3 "~" H 4900 7750 50  0001 C CNN
	1    4900 7750
	1    0    0    -1  
$EndComp
$Comp
L Device:CP C320
U 1 1 60B42924
P 4400 7750
AR Path="/60AA662F/60B42924" Ref="C320"  Part="1" 
AR Path="/60AE7597/60B42924" Ref="C420"  Part="1" 
AR Path="/60AE80F3/60B42924" Ref="C520"  Part="1" 
AR Path="/60B42924" Ref="C120"  Part="1" 
F 0 "C320" H 4518 7796 50  0000 L CNN
F 1 "47uF" H 4518 7705 50  0000 L CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 4438 7600 50  0001 C CNN
F 3 "~" H 4400 7750 50  0001 C CNN
	1    4400 7750
	1    0    0    -1  
$EndComp
Connection ~ 4900 7500
Wire Wire Line
	4400 7500 4400 7600
Wire Wire Line
	4900 7500 4400 7500
Wire Wire Line
	4900 7600 4900 7500
Connection ~ 4650 8000
Wire Wire Line
	4900 8000 4650 8000
Wire Wire Line
	4900 7900 4900 8000
Wire Wire Line
	4650 8000 4650 8050
Wire Wire Line
	4400 8000 4650 8000
Wire Wire Line
	4400 7900 4400 8000
$Comp
L power:GND #PWR0333
U 1 1 60B42913
P 4650 8050
AR Path="/60AA662F/60B42913" Ref="#PWR0333"  Part="1" 
AR Path="/60AE7597/60B42913" Ref="#PWR0433"  Part="1" 
AR Path="/60AE80F3/60B42913" Ref="#PWR0533"  Part="1" 
AR Path="/60B42913" Ref="#PWR0121"  Part="1" 
F 0 "#PWR0333" H 4650 7800 50  0001 C CNN
F 1 "GND" H 4655 7877 50  0000 C CNN
F 2 "" H 4650 8050 50  0001 C CNN
F 3 "" H 4650 8050 50  0001 C CNN
	1    4650 8050
	1    0    0    -1  
$EndComp
Wire Wire Line
	5550 7800 5550 7700
Wire Wire Line
	4000 7500 4400 7500
Connection ~ 4000 7500
Connection ~ 4400 7500
Wire Wire Line
	9750 5900 9400 5900
Connection ~ 9750 5900
Wire Wire Line
	9750 5800 9750 5900
Wire Wire Line
	13800 7700 14000 7700
Connection ~ 13200 7700
Wire Wire Line
	13200 7700 13500 7700
Wire Wire Line
	13200 7700 13100 7700
Wire Wire Line
	13200 7400 13200 7700
Wire Wire Line
	12550 7700 12800 7700
Connection ~ 12550 7700
Wire Wire Line
	12550 7400 12550 7700
Wire Wire Line
	11900 7700 12150 7700
Connection ~ 11900 7700
Wire Wire Line
	11900 7400 11900 7700
Wire Wire Line
	11250 7700 11500 7700
Connection ~ 11250 7700
Wire Wire Line
	11250 7400 11250 7700
Wire Wire Line
	10600 7700 10850 7700
Connection ~ 10600 7700
Wire Wire Line
	10600 7400 10600 7700
Wire Wire Line
	9950 7700 10200 7700
Connection ~ 9950 7700
Wire Wire Line
	9950 7400 9950 7700
Wire Wire Line
	9300 7700 9550 7700
Connection ~ 9300 7700
Wire Wire Line
	9300 7400 9300 7700
Wire Wire Line
	8650 7700 8900 7700
Connection ~ 8650 7700
Wire Wire Line
	8650 7400 8650 7700
Wire Wire Line
	8000 7700 8250 7700
Connection ~ 8000 7700
Wire Wire Line
	8000 7400 8000 7700
Wire Wire Line
	7350 7700 7600 7700
Connection ~ 7350 7700
Wire Wire Line
	7350 7400 7350 7700
Wire Wire Line
	6700 7700 6950 7700
Connection ~ 6700 7700
Wire Wire Line
	6700 7400 6700 7700
Wire Wire Line
	6050 7700 6300 7700
Connection ~ 12750 7500
Wire Wire Line
	13400 7500 13400 7400
Wire Wire Line
	12750 7500 13400 7500
Connection ~ 12100 7500
Wire Wire Line
	12750 7500 12750 7400
Wire Wire Line
	12100 7500 12750 7500
Connection ~ 11450 7500
Wire Wire Line
	12100 7500 12100 7400
Wire Wire Line
	11450 7500 12100 7500
Connection ~ 10800 7500
Wire Wire Line
	11450 7500 11450 7400
Wire Wire Line
	10800 7500 11450 7500
Connection ~ 10150 7500
Wire Wire Line
	10800 7500 10800 7400
Wire Wire Line
	10150 7500 10800 7500
Connection ~ 9500 7500
Wire Wire Line
	10150 7500 10150 7400
Wire Wire Line
	9500 7500 10150 7500
Connection ~ 8850 7500
Wire Wire Line
	9500 7500 9500 7400
Wire Wire Line
	8850 7500 9500 7500
Connection ~ 8200 7500
Wire Wire Line
	8850 7500 8850 7400
Wire Wire Line
	8200 7500 8850 7500
Connection ~ 7550 7500
Wire Wire Line
	8200 7500 8200 7400
Wire Wire Line
	7550 7500 8200 7500
Connection ~ 6900 7500
Wire Wire Line
	7550 7500 7550 7400
Wire Wire Line
	6900 7500 7550 7500
Connection ~ 6250 7500
Wire Wire Line
	6900 7500 6900 7400
Wire Wire Line
	6250 7500 6900 7500
Wire Wire Line
	12450 7700 12550 7700
Wire Wire Line
	11800 7700 11900 7700
Wire Wire Line
	11150 7700 11250 7700
Wire Wire Line
	9850 7700 9950 7700
Wire Wire Line
	10500 7700 10600 7700
Wire Wire Line
	9200 7700 9300 7700
Wire Wire Line
	8550 7700 8650 7700
Wire Wire Line
	7900 7700 8000 7700
Wire Wire Line
	7250 7700 7350 7700
Wire Wire Line
	6600 7700 6700 7700
$Comp
L Comparator:LM339 U305
U 3 1 60B427DE
P 6800 7100
AR Path="/60AA662F/60B427DE" Ref="U305"  Part="3" 
AR Path="/60AE7597/60B427DE" Ref="U405"  Part="3" 
AR Path="/60AE80F3/60B427DE" Ref="U505"  Part="3" 
AR Path="/60B427DE" Ref="U105"  Part="3" 
F 0 "U305" H 6800 7467 50  0000 C CNN
F 1 "LM339" H 6800 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 6750 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 6850 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 6800 7100 50  0001 C CNN "Model"
	3    6800 7100
	0    -1   -1   0   
$EndComp
Connection ~ 6050 7700
$Comp
L Device:R R345
U 1 1 60B4275E
P 12950 7700
AR Path="/60AA662F/60B4275E" Ref="R345"  Part="1" 
AR Path="/60AE7597/60B4275E" Ref="R445"  Part="1" 
AR Path="/60AE80F3/60B4275E" Ref="R545"  Part="1" 
AR Path="/60B4275E" Ref="R145"  Part="1" 
F 0 "R345" V 12835 7700 50  0000 C CNN
F 1 "3.9K" V 12744 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 12880 7700 50  0001 C CNN
F 3 "~" H 12950 7700 50  0001 C CNN
	1    12950 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R342
U 1 1 60B4276B
P 11000 7700
AR Path="/60AA662F/60B4276B" Ref="R342"  Part="1" 
AR Path="/60AE7597/60B4276B" Ref="R442"  Part="1" 
AR Path="/60AE80F3/60B4276B" Ref="R542"  Part="1" 
AR Path="/60B4276B" Ref="R142"  Part="1" 
F 0 "R342" V 10885 7700 50  0000 C CNN
F 1 "1K" V 10794 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 10930 7700 50  0001 C CNN
F 3 "~" H 11000 7700 50  0001 C CNN
	1    11000 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R344
U 1 1 60B42774
P 12300 7700
AR Path="/60AA662F/60B42774" Ref="R344"  Part="1" 
AR Path="/60AE7597/60B42774" Ref="R444"  Part="1" 
AR Path="/60AE80F3/60B42774" Ref="R544"  Part="1" 
AR Path="/60B42774" Ref="R144"  Part="1" 
F 0 "R344" V 12185 7700 50  0000 C CNN
F 1 "2.7K" V 12094 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 12230 7700 50  0001 C CNN
F 3 "~" H 12300 7700 50  0001 C CNN
	1    12300 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R343
U 1 1 60B4277F
P 11650 7700
AR Path="/60AA662F/60B4277F" Ref="R343"  Part="1" 
AR Path="/60AE7597/60B4277F" Ref="R443"  Part="1" 
AR Path="/60AE80F3/60B4277F" Ref="R543"  Part="1" 
AR Path="/60B4277F" Ref="R143"  Part="1" 
F 0 "R343" V 11535 7700 50  0000 C CNN
F 1 "1.5K" V 11444 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 11580 7700 50  0001 C CNN
F 3 "~" H 11650 7700 50  0001 C CNN
	1    11650 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R341
U 1 1 60B427A4
P 10350 7700
AR Path="/60AA662F/60B427A4" Ref="R341"  Part="1" 
AR Path="/60AE7597/60B427A4" Ref="R441"  Part="1" 
AR Path="/60AE80F3/60B427A4" Ref="R541"  Part="1" 
AR Path="/60B427A4" Ref="R141"  Part="1" 
F 0 "R341" V 10235 7700 50  0000 C CNN
F 1 "680R" V 10144 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 10280 7700 50  0001 C CNN
F 3 "~" H 10350 7700 50  0001 C CNN
	1    10350 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R138
U 1 1 60B427B1
P 8400 7700
AR Path="/60B427B1" Ref="R138"  Part="1" 
AR Path="/60AA662F/60B427B1" Ref="R338"  Part="1" 
AR Path="/60AE7597/60B427B1" Ref="R438"  Part="1" 
AR Path="/60AE80F3/60B427B1" Ref="R538"  Part="1" 
F 0 "R338" V 8285 7700 50  0000 C CNN
F 1 "150R" V 8194 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 8330 7700 50  0001 C CNN
F 3 "~" H 8400 7700 50  0001 C CNN
	1    8400 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R340
U 1 1 60B427BA
P 9700 7700
AR Path="/60AA662F/60B427BA" Ref="R340"  Part="1" 
AR Path="/60AE7597/60B427BA" Ref="R440"  Part="1" 
AR Path="/60AE80F3/60B427BA" Ref="R540"  Part="1" 
AR Path="/60B427BA" Ref="R140"  Part="1" 
F 0 "R340" V 9585 7700 50  0000 C CNN
F 1 "390R" V 9494 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 9630 7700 50  0001 C CNN
F 3 "~" H 9700 7700 50  0001 C CNN
	1    9700 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R339
U 1 1 60B427C5
P 9050 7700
AR Path="/60AA662F/60B427C5" Ref="R339"  Part="1" 
AR Path="/60AE7597/60B427C5" Ref="R439"  Part="1" 
AR Path="/60AE80F3/60B427C5" Ref="R539"  Part="1" 
AR Path="/60B427C5" Ref="R139"  Part="1" 
F 0 "R339" V 8935 7700 50  0000 C CNN
F 1 "270R" V 8844 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 8980 7700 50  0001 C CNN
F 3 "~" H 9050 7700 50  0001 C CNN
	1    9050 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R337
U 1 1 60B427EA
P 7750 7700
AR Path="/60AA662F/60B427EA" Ref="R337"  Part="1" 
AR Path="/60AE7597/60B427EA" Ref="R437"  Part="1" 
AR Path="/60AE80F3/60B427EA" Ref="R537"  Part="1" 
AR Path="/60B427EA" Ref="R137"  Part="1" 
F 0 "R337" V 7635 7700 50  0000 C CNN
F 1 "100R" V 7544 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7680 7700 50  0001 C CNN
F 3 "~" H 7750 7700 50  0001 C CNN
	1    7750 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R346
U 1 1 60B429EA
P 13650 7700
AR Path="/60AA662F/60B429EA" Ref="R346"  Part="1" 
AR Path="/60AE7597/60B429EA" Ref="R446"  Part="1" 
AR Path="/60AE80F3/60B429EA" Ref="R546"  Part="1" 
AR Path="/60B429EA" Ref="R146"  Part="1" 
F 0 "R346" V 13857 7700 50  0000 C CNN
F 1 "2.7K" V 13766 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 13580 7700 50  0001 C CNN
F 3 "~" H 13650 7700 50  0001 C CNN
	1    13650 7700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	14000 7600 14000 7700
Wire Wire Line
	5950 7700 6050 7700
$Comp
L Device:LED D317
U 1 1 60B4282C
P 13300 6150
AR Path="/60AA662F/60B4282C" Ref="D317"  Part="1" 
AR Path="/60AE7597/60B4282C" Ref="D417"  Part="1" 
AR Path="/60AE80F3/60B4282C" Ref="D517"  Part="1" 
AR Path="/60B4282C" Ref="D117"  Part="1" 
F 0 "D317" H 13293 6367 50  0000 C CNN
F 1 "rd" H 13293 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 13300 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 13300 6150 50  0001 C CNN
F 4 "TLHR5405" H 13300 6150 50  0001 C CNN "Model"
	1    13300 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D316
U 1 1 60B4283C
P 12650 6150
AR Path="/60AA662F/60B4283C" Ref="D316"  Part="1" 
AR Path="/60AE7597/60B4283C" Ref="D416"  Part="1" 
AR Path="/60AE80F3/60B4283C" Ref="D516"  Part="1" 
AR Path="/60B4283C" Ref="D116"  Part="1" 
F 0 "D316" H 12643 6367 50  0000 C CNN
F 1 "ye" H 12643 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 12650 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 12650 6150 50  0001 C CNN
F 4 "TLHY5405" H 12650 6150 50  0001 C CNN "Model"
	1    12650 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D315
U 1 1 60B4284D
P 12000 6150
AR Path="/60AA662F/60B4284D" Ref="D315"  Part="1" 
AR Path="/60AE7597/60B4284D" Ref="D415"  Part="1" 
AR Path="/60AE80F3/60B4284D" Ref="D515"  Part="1" 
AR Path="/60B4284D" Ref="D115"  Part="1" 
F 0 "D315" H 11993 6367 50  0000 C CNN
F 1 "ye" H 11993 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 12000 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 12000 6150 50  0001 C CNN
F 4 "TLHY5405" H 12000 6150 50  0001 C CNN "Model"
	1    12000 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D314
U 1 1 60B4285E
P 11350 6150
AR Path="/60AA662F/60B4285E" Ref="D314"  Part="1" 
AR Path="/60AE7597/60B4285E" Ref="D414"  Part="1" 
AR Path="/60AE80F3/60B4285E" Ref="D514"  Part="1" 
AR Path="/60B4285E" Ref="D114"  Part="1" 
F 0 "D314" H 11343 6367 50  0000 C CNN
F 1 "gn" H 11343 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 11350 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 11350 6150 50  0001 C CNN
F 4 "TLHG5405" H 11350 6150 50  0001 C CNN "Model"
	1    11350 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D313
U 1 1 60B4286F
P 10700 6150
AR Path="/60AA662F/60B4286F" Ref="D313"  Part="1" 
AR Path="/60AE7597/60B4286F" Ref="D413"  Part="1" 
AR Path="/60AE80F3/60B4286F" Ref="D513"  Part="1" 
AR Path="/60B4286F" Ref="D113"  Part="1" 
F 0 "D313" H 10693 6367 50  0000 C CNN
F 1 "gn" H 10693 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 10700 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 10700 6150 50  0001 C CNN
F 4 "TLHG5405" H 10700 6150 50  0001 C CNN "Model"
	1    10700 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D312
U 1 1 60B42880
P 10050 6150
AR Path="/60AA662F/60B42880" Ref="D312"  Part="1" 
AR Path="/60AE7597/60B42880" Ref="D412"  Part="1" 
AR Path="/60AE80F3/60B42880" Ref="D512"  Part="1" 
AR Path="/60B42880" Ref="D112"  Part="1" 
F 0 "D312" H 10043 6367 50  0000 C CNN
F 1 "gn" H 10043 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 10050 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 10050 6150 50  0001 C CNN
F 4 "TLHG5405" H 10050 6150 50  0001 C CNN "Model"
	1    10050 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D311
U 1 1 60B42891
P 9400 6150
AR Path="/60AA662F/60B42891" Ref="D311"  Part="1" 
AR Path="/60AE7597/60B42891" Ref="D411"  Part="1" 
AR Path="/60AE80F3/60B42891" Ref="D511"  Part="1" 
AR Path="/60B42891" Ref="D111"  Part="1" 
F 0 "D311" H 9393 6367 50  0000 C CNN
F 1 "ye" H 9393 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 9400 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 9400 6150 50  0001 C CNN
F 4 "TLHY5405" H 9400 6150 50  0001 C CNN "Model"
	1    9400 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D310
U 1 1 60B428A2
P 8750 6150
AR Path="/60AA662F/60B428A2" Ref="D310"  Part="1" 
AR Path="/60AE7597/60B428A2" Ref="D410"  Part="1" 
AR Path="/60AE80F3/60B428A2" Ref="D510"  Part="1" 
AR Path="/60B428A2" Ref="D110"  Part="1" 
F 0 "D310" H 8743 6367 50  0000 C CNN
F 1 "ye" H 8743 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 8750 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 8750 6150 50  0001 C CNN
F 4 "TLHY5405" H 8750 6150 50  0001 C CNN "Model"
	1    8750 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D309
U 1 1 60B428B3
P 8100 6150
AR Path="/60AA662F/60B428B3" Ref="D309"  Part="1" 
AR Path="/60AE7597/60B428B3" Ref="D409"  Part="1" 
AR Path="/60AE80F3/60B428B3" Ref="D509"  Part="1" 
AR Path="/60B428B3" Ref="D109"  Part="1" 
F 0 "D309" H 8093 6367 50  0000 C CNN
F 1 "rd" H 8093 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 8100 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 8100 6150 50  0001 C CNN
F 4 "TLHR5405" H 8100 6150 50  0001 C CNN "Model"
	1    8100 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:LED D308
U 1 1 60B428C4
P 7450 6150
AR Path="/60AA662F/60B428C4" Ref="D308"  Part="1" 
AR Path="/60AE7597/60B428C4" Ref="D408"  Part="1" 
AR Path="/60AE80F3/60B428C4" Ref="D508"  Part="1" 
AR Path="/60B428C4" Ref="D108"  Part="1" 
F 0 "D308" H 7443 6367 50  0000 C CNN
F 1 "rd" H 7443 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 7450 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 7450 6150 50  0001 C CNN
F 4 "TLHR5405" H 7450 6150 50  0001 C CNN "Model"
	1    7450 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R321
U 1 1 60B428DF
P 6150 6550
AR Path="/60AA662F/60B428DF" Ref="R321"  Part="1" 
AR Path="/60AE7597/60B428DF" Ref="R421"  Part="1" 
AR Path="/60AE80F3/60B428DF" Ref="R521"  Part="1" 
AR Path="/60B428DF" Ref="R121"  Part="1" 
F 0 "R321" V 5943 6550 50  0000 C CNN
F 1 "390R" V 6034 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6080 6550 50  0001 C CNN
F 3 "~" H 6150 6550 50  0001 C CNN
	1    6150 6550
	1    0    0    -1  
$EndComp
$Comp
L Device:LED D306
U 1 1 60B428E6
P 6150 6150
AR Path="/60AA662F/60B428E6" Ref="D306"  Part="1" 
AR Path="/60AE7597/60B428E6" Ref="D406"  Part="1" 
AR Path="/60AE80F3/60B428E6" Ref="D506"  Part="1" 
AR Path="/60B428E6" Ref="D106"  Part="1" 
F 0 "D306" H 6143 6367 50  0000 C CNN
F 1 "rd" H 6143 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6150 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6150 6150 50  0001 C CNN
F 4 "TLHR5405" H 6150 6150 50  0001 C CNN "Model"
	1    6150 6150
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6150 5900 6150 6000
Wire Wire Line
	6150 6300 6150 6400
Wire Wire Line
	6150 6700 6150 6800
$Comp
L Device:R R334
U 1 1 60B427F7
P 5800 7700
AR Path="/60AA662F/60B427F7" Ref="R334"  Part="1" 
AR Path="/60AE7597/60B427F7" Ref="R434"  Part="1" 
AR Path="/60AE80F3/60B427F7" Ref="R534"  Part="1" 
AR Path="/60B427F7" Ref="R134"  Part="1" 
F 0 "R334" V 5915 7700 50  0000 C CNN
F 1 "68R" V 6006 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 5730 7700 50  0001 C CNN
F 3 "~" H 5800 7700 50  0001 C CNN
	1    5800 7700
	0    -1   1    0   
$EndComp
Wire Wire Line
	6250 7500 6250 7400
Wire Wire Line
	6050 7700 6050 7400
$Comp
L power:GND #PWR0332
U 1 1 60B42A11
P 5550 7800
AR Path="/60AA662F/60B42A11" Ref="#PWR0332"  Part="1" 
AR Path="/60AE7597/60B42A11" Ref="#PWR0432"  Part="1" 
AR Path="/60AE80F3/60B42A11" Ref="#PWR0532"  Part="1" 
AR Path="/60B42A11" Ref="#PWR0122"  Part="1" 
F 0 "#PWR0332" H 5550 7550 50  0001 C CNN
F 1 "GND" H 5555 7627 50  0000 C CNN
F 2 "" H 5550 7800 50  0001 C CNN
F 3 "" H 5550 7800 50  0001 C CNN
	1    5550 7800
	1    0    0    -1  
$EndComp
$Comp
L power:+15V #PWR0329
U 1 1 60B429E4
P 14000 7600
AR Path="/60AA662F/60B429E4" Ref="#PWR0329"  Part="1" 
AR Path="/60AE7597/60B429E4" Ref="#PWR0429"  Part="1" 
AR Path="/60AE80F3/60B429E4" Ref="#PWR0529"  Part="1" 
AR Path="/60B429E4" Ref="#PWR0123"  Part="1" 
F 0 "#PWR0329" H 14000 7450 50  0001 C CNN
F 1 "+15V" H 14015 7773 50  0000 C CNN
F 2 "" H 14000 7600 50  0001 C CNN
F 3 "" H 14000 7600 50  0001 C CNN
	1    14000 7600
	-1   0    0    -1  
$EndComp
Text Notes 7000 6400 1    50   ~ 0
-28 dBu
Text Notes 7650 6400 1    50   ~ 0
-24 dBu
Text Notes 8950 6400 1    50   ~ 0
-16 dBu
Text Notes 9600 6400 1    50   ~ 0
-12 dBu
Text Notes 10900 6050 3    50   ~ 0
-4 dBu
Text Notes 10250 6350 1    50   ~ 0
-8 dBu
Text Notes 8300 6400 1    50   ~ 0
-20 dBu
Text Notes 12200 6050 3    50   ~ 0
+4 dBu
Connection ~ 7450 5900
Connection ~ 8100 5900
Connection ~ 8750 5900
Connection ~ 9400 5900
Connection ~ 10050 5900
Connection ~ 10700 5900
Connection ~ 11350 5900
Connection ~ 12000 5900
Connection ~ 12650 5900
Text Notes 11550 6050 3    50   ~ 0
+0 dBu
Text Notes 12850 6050 3    50   ~ 0
+8 dBu
Text Notes 13500 6050 3    50   ~ 0
+12 dBu
Wire Wire Line
	7450 5900 6800 5900
Wire Wire Line
	6800 6700 6800 6800
Wire Wire Line
	6800 6300 6800 6400
Wire Wire Line
	6800 5900 6800 6000
$Comp
L Device:LED D307
U 1 1 60B428D5
P 6800 6150
AR Path="/60AA662F/60B428D5" Ref="D307"  Part="1" 
AR Path="/60AE7597/60B428D5" Ref="D407"  Part="1" 
AR Path="/60AE80F3/60B428D5" Ref="D507"  Part="1" 
AR Path="/60B428D5" Ref="D107"  Part="1" 
F 0 "D307" H 6793 6367 50  0000 C CNN
F 1 "rd" H 6793 6276 50  0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6800 6150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6800 6150 50  0001 C CNN
F 4 "TLHR5405" H 6800 6150 50  0001 C CNN "Model"
	1    6800 6150
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R322
U 1 1 60B428CE
P 6800 6550
AR Path="/60AA662F/60B428CE" Ref="R322"  Part="1" 
AR Path="/60AE7597/60B428CE" Ref="R422"  Part="1" 
AR Path="/60AE80F3/60B428CE" Ref="R522"  Part="1" 
AR Path="/60B428CE" Ref="R122"  Part="1" 
F 0 "R322" V 6593 6550 50  0000 C CNN
F 1 "390R" V 6684 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6730 6550 50  0001 C CNN
F 3 "~" H 6800 6550 50  0001 C CNN
	1    6800 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	8100 5900 7450 5900
Wire Wire Line
	7450 6700 7450 6800
Wire Wire Line
	7450 6300 7450 6400
Wire Wire Line
	7450 5900 7450 6000
$Comp
L Device:R R323
U 1 1 60B428BD
P 7450 6550
AR Path="/60AA662F/60B428BD" Ref="R323"  Part="1" 
AR Path="/60AE7597/60B428BD" Ref="R423"  Part="1" 
AR Path="/60AE80F3/60B428BD" Ref="R523"  Part="1" 
AR Path="/60B428BD" Ref="R123"  Part="1" 
F 0 "R323" V 7243 6550 50  0000 C CNN
F 1 "390R" V 7334 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7380 6550 50  0001 C CNN
F 3 "~" H 7450 6550 50  0001 C CNN
	1    7450 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	8750 5900 8100 5900
Wire Wire Line
	8100 6700 8100 6800
Wire Wire Line
	8100 6300 8100 6400
Wire Wire Line
	8100 5900 8100 6000
$Comp
L Device:R R324
U 1 1 60B428AC
P 8100 6550
AR Path="/60AA662F/60B428AC" Ref="R324"  Part="1" 
AR Path="/60AE7597/60B428AC" Ref="R424"  Part="1" 
AR Path="/60AE80F3/60B428AC" Ref="R524"  Part="1" 
AR Path="/60B428AC" Ref="R124"  Part="1" 
F 0 "R324" V 7893 6550 50  0000 C CNN
F 1 "390R" V 7984 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 8030 6550 50  0001 C CNN
F 3 "~" H 8100 6550 50  0001 C CNN
	1    8100 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	9400 5900 8750 5900
Wire Wire Line
	8750 6700 8750 6800
Wire Wire Line
	8750 6300 8750 6400
Wire Wire Line
	8750 5900 8750 6000
$Comp
L Device:R R325
U 1 1 60B4289B
P 8750 6550
AR Path="/60AA662F/60B4289B" Ref="R325"  Part="1" 
AR Path="/60AE7597/60B4289B" Ref="R425"  Part="1" 
AR Path="/60AE80F3/60B4289B" Ref="R525"  Part="1" 
AR Path="/60B4289B" Ref="R125"  Part="1" 
F 0 "R325" V 8543 6550 50  0000 C CNN
F 1 "390R" V 8634 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 8680 6550 50  0001 C CNN
F 3 "~" H 8750 6550 50  0001 C CNN
	1    8750 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	10050 5900 9750 5900
Wire Wire Line
	9400 6700 9400 6800
Wire Wire Line
	9400 6300 9400 6400
Wire Wire Line
	9400 5900 9400 6000
$Comp
L Device:R R326
U 1 1 60B4288A
P 9400 6550
AR Path="/60AA662F/60B4288A" Ref="R326"  Part="1" 
AR Path="/60AE7597/60B4288A" Ref="R426"  Part="1" 
AR Path="/60AE80F3/60B4288A" Ref="R526"  Part="1" 
AR Path="/60B4288A" Ref="R126"  Part="1" 
F 0 "R326" V 9193 6550 50  0000 C CNN
F 1 "390R" V 9284 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 9330 6550 50  0001 C CNN
F 3 "~" H 9400 6550 50  0001 C CNN
	1    9400 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	10700 5900 10050 5900
Wire Wire Line
	10050 6700 10050 6800
Wire Wire Line
	10050 6300 10050 6400
Wire Wire Line
	10050 5900 10050 6000
$Comp
L Device:R R327
U 1 1 60B42879
P 10050 6550
AR Path="/60AA662F/60B42879" Ref="R327"  Part="1" 
AR Path="/60AE7597/60B42879" Ref="R427"  Part="1" 
AR Path="/60AE80F3/60B42879" Ref="R527"  Part="1" 
AR Path="/60B42879" Ref="R127"  Part="1" 
F 0 "R327" V 9843 6550 50  0000 C CNN
F 1 "390R" V 9934 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 9980 6550 50  0001 C CNN
F 3 "~" H 10050 6550 50  0001 C CNN
	1    10050 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	11350 5900 10700 5900
Wire Wire Line
	10700 6700 10700 6800
Wire Wire Line
	10700 6300 10700 6400
Wire Wire Line
	10700 5900 10700 6000
$Comp
L Device:R R328
U 1 1 60B42868
P 10700 6550
AR Path="/60AA662F/60B42868" Ref="R328"  Part="1" 
AR Path="/60AE7597/60B42868" Ref="R428"  Part="1" 
AR Path="/60AE80F3/60B42868" Ref="R528"  Part="1" 
AR Path="/60B42868" Ref="R128"  Part="1" 
F 0 "R328" V 10493 6550 50  0000 C CNN
F 1 "390R" V 10584 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 10630 6550 50  0001 C CNN
F 3 "~" H 10700 6550 50  0001 C CNN
	1    10700 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	12000 5900 11350 5900
Wire Wire Line
	11350 6700 11350 6800
Wire Wire Line
	11350 6300 11350 6400
Wire Wire Line
	11350 5900 11350 6000
$Comp
L Device:R R329
U 1 1 60B42857
P 11350 6550
AR Path="/60AA662F/60B42857" Ref="R329"  Part="1" 
AR Path="/60AE7597/60B42857" Ref="R429"  Part="1" 
AR Path="/60AE80F3/60B42857" Ref="R529"  Part="1" 
AR Path="/60B42857" Ref="R129"  Part="1" 
F 0 "R329" V 11143 6550 50  0000 C CNN
F 1 "390R" V 11234 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 11280 6550 50  0001 C CNN
F 3 "~" H 11350 6550 50  0001 C CNN
	1    11350 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	12650 5900 12000 5900
Wire Wire Line
	12000 6700 12000 6800
Wire Wire Line
	12000 6300 12000 6400
Wire Wire Line
	12000 5900 12000 6000
$Comp
L Device:R R330
U 1 1 60B42846
P 12000 6550
AR Path="/60AA662F/60B42846" Ref="R330"  Part="1" 
AR Path="/60AE7597/60B42846" Ref="R430"  Part="1" 
AR Path="/60AE80F3/60B42846" Ref="R530"  Part="1" 
AR Path="/60B42846" Ref="R130"  Part="1" 
F 0 "R330" V 11793 6550 50  0000 C CNN
F 1 "390R" V 11884 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 11930 6550 50  0001 C CNN
F 3 "~" H 12000 6550 50  0001 C CNN
	1    12000 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	13300 5900 12650 5900
Wire Wire Line
	12650 6700 12650 6800
Wire Wire Line
	12650 6300 12650 6400
Wire Wire Line
	12650 5900 12650 6000
$Comp
L Device:R R331
U 1 1 60B42835
P 12650 6550
AR Path="/60AA662F/60B42835" Ref="R331"  Part="1" 
AR Path="/60AE7597/60B42835" Ref="R431"  Part="1" 
AR Path="/60AE80F3/60B42835" Ref="R531"  Part="1" 
AR Path="/60B42835" Ref="R131"  Part="1" 
F 0 "R331" V 12443 6550 50  0000 C CNN
F 1 "390R" V 12534 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 12580 6550 50  0001 C CNN
F 3 "~" H 12650 6550 50  0001 C CNN
	1    12650 6550
	1    0    0    -1  
$EndComp
Wire Wire Line
	13300 6700 13300 6800
Wire Wire Line
	13300 6300 13300 6400
Wire Wire Line
	13300 5900 13300 6000
$Comp
L Device:R R332
U 1 1 60B42825
P 13300 6550
AR Path="/60AA662F/60B42825" Ref="R332"  Part="1" 
AR Path="/60AE7597/60B42825" Ref="R432"  Part="1" 
AR Path="/60AE80F3/60B42825" Ref="R532"  Part="1" 
AR Path="/60B42825" Ref="R132"  Part="1" 
F 0 "R332" V 13093 6550 50  0000 C CNN
F 1 "390R" V 13184 6550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 13230 6550 50  0001 C CNN
F 3 "~" H 13300 6550 50  0001 C CNN
	1    13300 6550
	1    0    0    -1  
$EndComp
$Comp
L Device:R R335
U 1 1 60B42809
P 6450 7700
AR Path="/60AA662F/60B42809" Ref="R335"  Part="1" 
AR Path="/60AE7597/60B42809" Ref="R435"  Part="1" 
AR Path="/60AE80F3/60B42809" Ref="R535"  Part="1" 
AR Path="/60B42809" Ref="R135"  Part="1" 
F 0 "R335" V 6335 7700 50  0000 C CNN
F 1 "39R" V 6244 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6380 7700 50  0001 C CNN
F 3 "~" H 6450 7700 50  0001 C CNN
	1    6450 7700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R336
U 1 1 60B427FE
P 7100 7700
AR Path="/60AA662F/60B427FE" Ref="R336"  Part="1" 
AR Path="/60AE7597/60B427FE" Ref="R436"  Part="1" 
AR Path="/60AE80F3/60B427FE" Ref="R536"  Part="1" 
AR Path="/60B427FE" Ref="R136"  Part="1" 
F 0 "R336" V 6985 7700 50  0000 C CNN
F 1 "68R" V 6894 7700 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7030 7700 50  0001 C CNN
F 3 "~" H 7100 7700 50  0001 C CNN
	1    7100 7700
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U305
U 2 1 60B427D8
P 7450 7100
AR Path="/60AA662F/60B427D8" Ref="U305"  Part="2" 
AR Path="/60AE7597/60B427D8" Ref="U405"  Part="2" 
AR Path="/60AE80F3/60B427D8" Ref="U505"  Part="2" 
AR Path="/60B427D8" Ref="U105"  Part="2" 
F 0 "U305" H 7450 7467 50  0000 C CNN
F 1 "LM339" H 7450 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7400 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 7500 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 7450 7100 50  0001 C CNN "Model"
	2    7450 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U305
U 1 1 60B427D2
P 8100 7100
AR Path="/60AA662F/60B427D2" Ref="U305"  Part="1" 
AR Path="/60AE7597/60B427D2" Ref="U405"  Part="1" 
AR Path="/60AE80F3/60B427D2" Ref="U505"  Part="1" 
AR Path="/60B427D2" Ref="U105"  Part="1" 
F 0 "U305" H 8100 7467 50  0000 C CNN
F 1 "LM339" H 8100 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 8050 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 8150 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 8100 7100 50  0001 C CNN "Model"
	1    8100 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U306
U 4 1 60B4279E
P 8750 7100
AR Path="/60AA662F/60B4279E" Ref="U306"  Part="4" 
AR Path="/60AE7597/60B4279E" Ref="U406"  Part="4" 
AR Path="/60AE80F3/60B4279E" Ref="U506"  Part="4" 
AR Path="/60B4279E" Ref="U106"  Part="4" 
F 0 "U306" H 8750 7467 50  0000 C CNN
F 1 "LM339" H 8750 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 8700 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 8800 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 8750 7100 50  0001 C CNN "Model"
	4    8750 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U306
U 3 1 60B42798
P 9400 7100
AR Path="/60AA662F/60B42798" Ref="U306"  Part="3" 
AR Path="/60AE7597/60B42798" Ref="U406"  Part="3" 
AR Path="/60AE80F3/60B42798" Ref="U506"  Part="3" 
AR Path="/60B42798" Ref="U106"  Part="3" 
F 0 "U306" H 9400 7467 50  0000 C CNN
F 1 "LM339" H 9400 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 9350 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 9450 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 9400 7100 50  0001 C CNN "Model"
	3    9400 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U306
U 2 1 60B42792
P 10050 7100
AR Path="/60AA662F/60B42792" Ref="U306"  Part="2" 
AR Path="/60AE7597/60B42792" Ref="U406"  Part="2" 
AR Path="/60AE80F3/60B42792" Ref="U506"  Part="2" 
AR Path="/60B42792" Ref="U106"  Part="2" 
F 0 "U306" H 10050 7467 50  0000 C CNN
F 1 "LM339" H 10050 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 10000 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 10100 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 10050 7100 50  0001 C CNN "Model"
	2    10050 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U306
U 1 1 60B4278C
P 10700 7100
AR Path="/60AA662F/60B4278C" Ref="U306"  Part="1" 
AR Path="/60AE7597/60B4278C" Ref="U406"  Part="1" 
AR Path="/60AE80F3/60B4278C" Ref="U506"  Part="1" 
AR Path="/60B4278C" Ref="U106"  Part="1" 
F 0 "U306" H 10700 7467 50  0000 C CNN
F 1 "LM339" H 10700 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 10650 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 10750 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 10700 7100 50  0001 C CNN "Model"
	1    10700 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U307
U 4 1 60B42752
P 11350 7100
AR Path="/60AA662F/60B42752" Ref="U307"  Part="4" 
AR Path="/60AE7597/60B42752" Ref="U407"  Part="4" 
AR Path="/60AE80F3/60B42752" Ref="U507"  Part="4" 
AR Path="/60B42752" Ref="U107"  Part="4" 
F 0 "U307" H 11350 7467 50  0000 C CNN
F 1 "LM339" H 11350 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 11300 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 11400 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 11350 7100 50  0001 C CNN "Model"
	4    11350 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U307
U 3 1 60B4274C
P 12000 7100
AR Path="/60AA662F/60B4274C" Ref="U307"  Part="3" 
AR Path="/60AE7597/60B4274C" Ref="U407"  Part="3" 
AR Path="/60AE80F3/60B4274C" Ref="U507"  Part="3" 
AR Path="/60B4274C" Ref="U107"  Part="3" 
F 0 "U307" H 12000 7467 50  0000 C CNN
F 1 "LM339" H 12000 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 11950 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 12050 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 12000 7100 50  0001 C CNN "Model"
	3    12000 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U307
U 2 1 60B42746
P 12650 7100
AR Path="/60AA662F/60B42746" Ref="U307"  Part="2" 
AR Path="/60AE7597/60B42746" Ref="U407"  Part="2" 
AR Path="/60AE80F3/60B42746" Ref="U507"  Part="2" 
AR Path="/60B42746" Ref="U107"  Part="2" 
F 0 "U307" H 12650 7467 50  0000 C CNN
F 1 "LM339" H 12650 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 12600 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 12700 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 12650 7100 50  0001 C CNN "Model"
	2    12650 7100
	0    -1   -1   0   
$EndComp
$Comp
L Comparator:LM339 U307
U 1 1 60B42740
P 13300 7100
AR Path="/60AA662F/60B42740" Ref="U307"  Part="1" 
AR Path="/60AE7597/60B42740" Ref="U407"  Part="1" 
AR Path="/60AE80F3/60B42740" Ref="U507"  Part="1" 
AR Path="/60B42740" Ref="U107"  Part="1" 
F 0 "U307" H 13300 7467 50  0000 C CNN
F 1 "LM339" H 13300 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 13250 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 13350 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 13300 7100 50  0001 C CNN "Model"
	1    13300 7100
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5550 7700 5650 7700
Wire Wire Line
	4900 7500 6250 7500
Text GLabel 8500 10500 1    50   Output ~ 0
V_LED
Wire Wire Line
	8200 10600 8500 10600
Wire Wire Line
	8200 10700 8700 10700
Text GLabel 9750 5800 1    50   Input ~ 0
V_LED
$Comp
L Device:R R306
U 1 1 60DE75B7
P 8000 2550
AR Path="/60AA662F/60DE75B7" Ref="R306"  Part="1" 
AR Path="/60AE7597/60DE75B7" Ref="R406"  Part="1" 
AR Path="/60AE80F3/60DE75B7" Ref="R506"  Part="1" 
AR Path="/60DE75B7" Ref="R106"  Part="1" 
F 0 "R306" H 8070 2596 50  0000 L CNN
F 1 "390R" H 8070 2505 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7930 2550 50  0001 C CNN
F 3 "~" H 8000 2550 50  0001 C CNN
	1    8000 2550
	1    0    0    -1  
$EndComp
$Comp
L Device:LED D301
U 1 1 60DE68F1
P 8000 2150
AR Path="/60AA662F/60DE68F1" Ref="D301"  Part="1" 
AR Path="/60AE7597/60DE68F1" Ref="D401"  Part="1" 
AR Path="/60AE80F3/60DE68F1" Ref="D501"  Part="1" 
AR Path="/60DE68F1" Ref="D101"  Part="1" 
F 0 "D301" V 8039 2032 50  0000 R CNN
F 1 "On-Air (rd)" V 7948 2032 50  0000 R CNN
F 2 "LED_THT:LED_D5.0mm" H 8000 2150 50  0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 8000 2150 50  0001 C CNN
F 4 "TLHR5405" H 8000 2150 50  0001 C CNN "Model"
	1    8000 2150
	0    -1   -1   0   
$EndComp
$Comp
L Switch:SW_DPDT_x2 SW301
U 2 1 63519724
P 8000 1600
AR Path="/60AA662F/63519724" Ref="SW301"  Part="2" 
AR Path="/60AE7597/63519724" Ref="SW401"  Part="2" 
AR Path="/60AE80F3/63519724" Ref="SW501"  Part="2" 
AR Path="/63519724" Ref="SW101"  Part="2" 
F 0 "SW301" V 7954 1748 50  0000 L CNN
F 1 "OnAir_X" V 8045 1748 50  0000 L CNN
F 2 "c3lingo_unit-footprints:SW_APEM_MHPS2273_DPDT" H 8000 1900 50  0001 C CNN
F 3 "https://www.mouser.de/datasheet/2/26/MHPS_Q42014-535293.pdf" H 8000 1900 50  0001 C CNN
F 4 "APEM MHPS2273 (US)/ PHAP4673 (EU)" H 8000 1600 50  0001 C CNN "Model"
	2    8000 1600
	0    1    1    0   
$EndComp
Wire Wire Line
	8700 2900 8700 3000
Wire Wire Line
	8600 3000 8700 3000
Wire Wire Line
	9300 2600 10000 2600
Wire Wire Line
	9300 3000 9300 2600
$Comp
L power:GND #PWR0325
U 1 1 5FFAA886
P 7900 4300
AR Path="/60AA662F/5FFAA886" Ref="#PWR0325"  Part="1" 
AR Path="/60AE7597/5FFAA886" Ref="#PWR0425"  Part="1" 
AR Path="/60AE80F3/5FFAA886" Ref="#PWR0525"  Part="1" 
AR Path="/5FFAA886" Ref="#PWR0124"  Part="1" 
F 0 "#PWR0325" H 7900 4050 50  0001 C CNN
F 1 "GND" H 7905 4127 50  0000 C CNN
F 2 "" H 7900 4300 50  0001 C CNN
F 3 "" H 7900 4300 50  0001 C CNN
	1    7900 4300
	1    0    0    -1  
$EndComp
Connection ~ 900  3600
Wire Wire Line
	800  3200 800  3350
Wire Wire Line
	900  3350 800  3350
Wire Wire Line
	900  3600 900  3350
Wire Wire Line
	900  3700 900  3600
Connection ~ 600  3600
Wire Wire Line
	600  3700 600  3600
Wire Wire Line
	600  2900 600  3600
Text Notes 1300 4300 0    50   ~ 0
48V: R = 6.81K\n24V: R = 1.2K\n12V: R = 680R
Wire Wire Line
	2100 2800 2200 2800
Text GLabel 2200 2800 2    50   Input ~ 0
V_Phant
$Comp
L Jumper:SolderJumper_2_Open JP302
U 1 1 612142A6
P 750 3600
AR Path="/60AA662F/612142A6" Ref="JP302"  Part="1" 
AR Path="/60AE7597/612142A6" Ref="JP402"  Part="1" 
AR Path="/60AE80F3/612142A6" Ref="JP502"  Part="1" 
AR Path="/612142A6" Ref="JP102"  Part="1" 
F 0 "JP302" H 750 3805 50  0000 C CNN
F 1 "GND_JMP" H 750 3714 50  0000 C CNN
F 2 "Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm" H 750 3600 50  0001 C CNN
F 3 "~" H 750 3600 50  0001 C CNN
	1    750  3600
	1    0    0    -1  
$EndComp
Wire Wire Line
	15450 2850 15550 2850
$Comp
L power:GNDREF #PWR0318
U 1 1 61042B06
P 900 3700
AR Path="/60AA662F/61042B06" Ref="#PWR0318"  Part="1" 
AR Path="/60AE7597/61042B06" Ref="#PWR0418"  Part="1" 
AR Path="/60AE80F3/61042B06" Ref="#PWR0518"  Part="1" 
AR Path="/61042B06" Ref="#PWR0126"  Part="1" 
F 0 "#PWR0318" H 900 3450 50  0001 C CNN
F 1 "GNDREF" H 905 3527 50  0000 C CNN
F 2 "" H 900 3700 50  0001 C CNN
F 3 "" H 900 3700 50  0001 C CNN
	1    900  3700
	1    0    0    -1  
$EndComp
Text HLabel 9950 1850 0    50   Input ~ 0
Monitor_Stage
Connection ~ 10000 3850
Wire Wire Line
	9950 3850 10000 3850
Text HLabel 9950 3850 0    50   Input ~ 0
Monitor_OthersB
Connection ~ 10000 3350
Wire Wire Line
	9950 3350 10000 3350
Text HLabel 9950 3350 0    50   Input ~ 0
Monitor_OthersA
Text HLabel 8700 2900 1    50   Output ~ 0
PreampOut
Wire Wire Line
	2300 2000 2500 2000
Wire Wire Line
	2050 2500 2500 2500
Connection ~ 2050 2500
Wire Wire Line
	2050 4000 2300 4000
Wire Wire Line
	2050 3500 2500 3500
Connection ~ 2050 3500
Wire Wire Line
	1900 3500 2050 3500
Wire Wire Line
	2500 3500 2900 3500
Connection ~ 2500 3500
Wire Wire Line
	1900 2500 2050 2500
Wire Wire Line
	2500 2500 2900 2500
Connection ~ 2500 2500
Wire Wire Line
	2500 3500 2500 3600
Wire Wire Line
	2050 3500 2050 3600
Wire Wire Line
	1500 2950 1500 3100
Connection ~ 1500 2950
Connection ~ 2300 4000
Wire Wire Line
	2500 4000 2500 3900
Wire Wire Line
	2300 4000 2500 4000
Wire Wire Line
	2050 3900 2050 4000
Wire Wire Line
	2300 4100 2300 4000
$Comp
L power:GND #PWR0323
U 1 1 60346524
P 2300 4100
AR Path="/60AA662F/60346524" Ref="#PWR0323"  Part="1" 
AR Path="/60AE7597/60346524" Ref="#PWR0423"  Part="1" 
AR Path="/60AE80F3/60346524" Ref="#PWR0523"  Part="1" 
AR Path="/60346524" Ref="#PWR0127"  Part="1" 
F 0 "#PWR0323" H 2300 3850 50  0001 C CNN
F 1 "GND" H 2305 3927 50  0000 C CNN
F 2 "" H 2300 4100 50  0001 C CNN
F 3 "" H 2300 4100 50  0001 C CNN
	1    2300 4100
	1    0    0    -1  
$EndComp
$Comp
L Device:D D304
U 1 1 6034651E
P 2050 3750
AR Path="/60AA662F/6034651E" Ref="D304"  Part="1" 
AR Path="/60AE7597/6034651E" Ref="D404"  Part="1" 
AR Path="/60AE80F3/6034651E" Ref="D504"  Part="1" 
AR Path="/6034651E" Ref="D104"  Part="1" 
F 0 "D304" V 2096 3670 50  0000 R CNN
F 1 "1N4148" V 2005 3670 50  0000 R CNN
F 2 "Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal" H 2050 3750 50  0001 C CNN
F 3 "~" H 2050 3750 50  0001 C CNN
	1    2050 3750
	0    -1   -1   0   
$EndComp
$Comp
L Device:D D305
U 1 1 60346518
P 2500 3750
AR Path="/60AA662F/60346518" Ref="D305"  Part="1" 
AR Path="/60AE7597/60346518" Ref="D405"  Part="1" 
AR Path="/60AE80F3/60346518" Ref="D505"  Part="1" 
AR Path="/60346518" Ref="D105"  Part="1" 
F 0 "D305" V 2454 3830 50  0000 L CNN
F 1 "1N4148" V 2545 3830 50  0000 L CNN
F 2 "Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal" H 2500 3750 50  0001 C CNN
F 3 "~" H 2500 3750 50  0001 C CNN
	1    2500 3750
	0    1    1    0   
$EndComp
Wire Wire Line
	1500 2500 1600 2500
Connection ~ 1500 2500
Wire Wire Line
	1500 2600 1500 2500
Wire Wire Line
	1500 3500 1600 3500
Connection ~ 1500 3500
Wire Wire Line
	1500 3400 1500 3500
Connection ~ 2300 2000
Wire Wire Line
	2300 1850 2300 2000
Wire Wire Line
	1850 1850 2300 1850
Wire Wire Line
	1850 1900 1850 1850
Wire Wire Line
	2500 2000 2500 2100
Wire Wire Line
	2050 2000 2300 2000
Wire Wire Line
	2050 2100 2050 2000
Wire Wire Line
	2500 2400 2500 2500
Wire Wire Line
	2050 2500 2050 2400
$Comp
L power:GND #PWR0303
U 1 1 6022F48E
P 1850 1900
AR Path="/60AA662F/6022F48E" Ref="#PWR0303"  Part="1" 
AR Path="/60AE7597/6022F48E" Ref="#PWR0403"  Part="1" 
AR Path="/60AE80F3/6022F48E" Ref="#PWR0503"  Part="1" 
AR Path="/6022F48E" Ref="#PWR0128"  Part="1" 
F 0 "#PWR0303" H 1850 1650 50  0001 C CNN
F 1 "GND" H 1855 1727 50  0000 C CNN
F 2 "" H 1850 1900 50  0001 C CNN
F 3 "" H 1850 1900 50  0001 C CNN
	1    1850 1900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0310
U 1 1 601168B4
P 2100 3250
AR Path="/60AA662F/601168B4" Ref="#PWR0310"  Part="1" 
AR Path="/60AE7597/601168B4" Ref="#PWR0410"  Part="1" 
AR Path="/60AE80F3/601168B4" Ref="#PWR0510"  Part="1" 
AR Path="/601168B4" Ref="#PWR0129"  Part="1" 
F 0 "#PWR0310" H 2100 3000 50  0001 C CNN
F 1 "GND" H 2105 3077 50  0000 C CNN
F 2 "" H 2100 3250 50  0001 C CNN
F 3 "" H 2100 3250 50  0001 C CNN
	1    2100 3250
	1    0    0    -1  
$EndComp
Connection ~ 2100 2950
Wire Wire Line
	2100 2950 2100 2800
Wire Wire Line
	1500 2950 2100 2950
Wire Wire Line
	1500 2900 1500 2950
$Comp
L Device:CP C313
U 1 1 600A9821
P 1750 3500
AR Path="/60AA662F/600A9821" Ref="C313"  Part="1" 
AR Path="/60AE7597/600A9821" Ref="C413"  Part="1" 
AR Path="/60AE80F3/600A9821" Ref="C513"  Part="1" 
AR Path="/600A9821" Ref="C113"  Part="1" 
F 0 "C313" V 1587 3500 50  0000 C CNN
F 1 "1uF/ 63V lowESR" V 1496 3500 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 1788 3350 50  0001 C CNN
F 3 "~" H 1750 3500 50  0001 C CNN
F 4 "low ESR electrolytic // plastic film" H 1750 3500 50  0001 C CNN "Model"
	1    1750 3500
	0    -1   -1   0   
$EndComp
Text Notes 1300 4000 0    50   ~ 10
Phantom Power\n(48V)
Wire Wire Line
	1300 3500 1500 3500
Wire Wire Line
	1300 3300 1300 3500
Wire Wire Line
	1300 2500 1500 2500
Wire Wire Line
	1300 2900 1300 2500
$Comp
L Device:D D302
U 1 1 5FF62030
P 2050 2250
AR Path="/60AA662F/5FF62030" Ref="D302"  Part="1" 
AR Path="/60AE7597/5FF62030" Ref="D402"  Part="1" 
AR Path="/60AE80F3/5FF62030" Ref="D502"  Part="1" 
AR Path="/5FF62030" Ref="D102"  Part="1" 
F 0 "D302" V 2096 2170 50  0000 R CNN
F 1 "1N4148" V 2005 2170 50  0000 R CNN
F 2 "Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal" H 2050 2250 50  0001 C CNN
F 3 "~" H 2050 2250 50  0001 C CNN
	1    2050 2250
	0    -1   -1   0   
$EndComp
$Comp
L Device:D D303
U 1 1 5FF619A0
P 2500 2250
AR Path="/60AA662F/5FF619A0" Ref="D303"  Part="1" 
AR Path="/60AE7597/5FF619A0" Ref="D403"  Part="1" 
AR Path="/60AE80F3/5FF619A0" Ref="D503"  Part="1" 
AR Path="/5FF619A0" Ref="D103"  Part="1" 
F 0 "D303" V 2454 2330 50  0000 L CNN
F 1 "1N4148" V 2545 2330 50  0000 L CNN
F 2 "Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal" H 2500 2250 50  0001 C CNN
F 3 "~" H 2500 2250 50  0001 C CNN
	1    2500 2250
	0    1    1    0   
$EndComp
$Comp
L Device:CP C307
U 1 1 5FF457A4
P 1750 2500
AR Path="/60AA662F/5FF457A4" Ref="C307"  Part="1" 
AR Path="/60AE7597/5FF457A4" Ref="C407"  Part="1" 
AR Path="/60AE80F3/5FF457A4" Ref="C507"  Part="1" 
AR Path="/5FF457A4" Ref="C107"  Part="1" 
F 0 "C307" V 2005 2500 50  0000 C CNN
F 1 "1uF/ 63V lowESR" V 1914 2500 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 1788 2350 50  0001 C CNN
F 3 "~" H 1750 2500 50  0001 C CNN
F 4 "low ESR electrolytic // plastic film" H 1750 2500 50  0001 C CNN "Model"
	1    1750 2500
	0    -1   -1   0   
$EndComp
$Comp
L Device:CP C311
U 1 1 5FDD46AF
P 2100 3100
AR Path="/60AA662F/5FDD46AF" Ref="C311"  Part="1" 
AR Path="/60AE7597/5FDD46AF" Ref="C411"  Part="1" 
AR Path="/60AE80F3/5FDD46AF" Ref="C511"  Part="1" 
AR Path="/5FDD46AF" Ref="C111"  Part="1" 
F 0 "C311" H 1982 3146 50  0000 R CNN
F 1 "100uF/ 63V" H 1982 3055 50  0000 R CNN
F 2 "Capacitor_THT:CP_Radial_D10.0mm_P5.00mm" H 2138 2950 50  0001 C CNN
F 3 "~" H 2100 3100 50  0001 C CNN
F 4 "" H 2100 3100 50  0001 C CNN "Model"
	1    2100 3100
	-1   0    0    -1  
$EndComp
$Comp
L Device:R R311
U 1 1 5FDA0F68
P 1500 3250
AR Path="/60AA662F/5FDA0F68" Ref="R311"  Part="1" 
AR Path="/60AE7597/5FDA0F68" Ref="R411"  Part="1" 
AR Path="/60AE80F3/5FDA0F68" Ref="R511"  Part="1" 
AR Path="/5FDA0F68" Ref="R111"  Part="1" 
F 0 "R311" H 1570 3296 50  0000 L CNN
F 1 "6.8K 1%" H 1570 3205 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 1430 3250 50  0001 C CNN
F 3 "~" H 1500 3250 50  0001 C CNN
	1    1500 3250
	1    0    0    1   
$EndComp
$Comp
L Device:R R307
U 1 1 5FD87CA8
P 1500 2750
AR Path="/60AA662F/5FD87CA8" Ref="R307"  Part="1" 
AR Path="/60AE7597/5FD87CA8" Ref="R407"  Part="1" 
AR Path="/60AE80F3/5FD87CA8" Ref="R507"  Part="1" 
AR Path="/5FD87CA8" Ref="R107"  Part="1" 
F 0 "R307" H 1430 2704 50  0000 R CNN
F 1 "6.8K 1%" H 1430 2795 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 1430 2750 50  0001 C CNN
F 3 "~" H 1500 2750 50  0001 C CNN
	1    1500 2750
	-1   0    0    1   
$EndComp
Wire Wire Line
	15300 3000 15300 3050
Connection ~ 15300 3000
Wire Wire Line
	15200 3000 15300 3000
Wire Wire Line
	15300 2950 15300 3000
Wire Wire Line
	15300 2950 15550 2950
Wire Wire Line
	15550 3050 15300 3050
$Comp
L Amplifier_Operational:LM358 U302
U 2 1 5FFF673D
P 11750 3000
AR Path="/60AA662F/5FFF673D" Ref="U302"  Part="2" 
AR Path="/60AE7597/5FFF673D" Ref="U402"  Part="2" 
AR Path="/60AE80F3/5FFF673D" Ref="U502"  Part="2" 
AR Path="/5FFF673D" Ref="U102"  Part="2" 
F 0 "U302" H 11750 2633 50  0000 C CNN
F 1 "LM833N" H 11750 2724 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 11750 3000 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm833.pdf" H 11750 3000 50  0001 C CNN
F 4 "+DIP-8 Socket" H 11750 3000 50  0001 C CNN "Model"
	2    11750 3000
	1    0    0    1   
$EndComp
$Comp
L Device:R R302
U 1 1 5FFF6743
P 11900 2300
AR Path="/60AA662F/5FFF6743" Ref="R302"  Part="1" 
AR Path="/60AE7597/5FFF6743" Ref="R402"  Part="1" 
AR Path="/60AE80F3/5FFF6743" Ref="R502"  Part="1" 
AR Path="/5FFF6743" Ref="R102"  Part="1" 
F 0 "R302" V 11693 2300 50  0000 C CNN
F 1 "22K" V 11784 2300 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 11830 2300 50  0001 C CNN
F 3 "~" H 11900 2300 50  0001 C CNN
	1    11900 2300
	0    1    1    0   
$EndComp
$Comp
L Device:R_POT RV301
U 1 1 5FFF6755
P 10450 2100
AR Path="/60AA662F/5FFF6755" Ref="RV301"  Part="1" 
AR Path="/60AE7597/5FFF6755" Ref="RV401"  Part="1" 
AR Path="/60AE80F3/5FFF6755" Ref="RV501"  Part="1" 
AR Path="/5FFF6755" Ref="RV101"  Part="1" 
F 0 "RV301" H 10380 2054 50  0000 R CNN
F 1 "50K log." H 10380 2145 50  0000 R CNN
F 2 "c3lingo_unit-footprints:Potentiometer_Alps_RK09K_Double_Vertical" V 10380 2100 50  0001 C CNN
F 3 "https://tech.alpsalpine.com/prod/e/pdf/potentiometer/rotarypotentiometers/rk09k/rk09k.pdf" H 10450 2100 50  0001 C CNN
F 4 "Alps RK09K12C0A2S (dual, vert.)" H 10450 2100 50  0001 C CNN "Model"
	1    10450 2100
	1    0    0    1   
$EndComp
$Comp
L Device:C C303
U 1 1 5FFF675B
P 11600 1950
AR Path="/60AA662F/5FFF675B" Ref="C303"  Part="1" 
AR Path="/60AE7597/5FFF675B" Ref="C403"  Part="1" 
AR Path="/60AE80F3/5FFF675B" Ref="C503"  Part="1" 
AR Path="/5FFF675B" Ref="C103"  Part="1" 
F 0 "C303" V 11348 1950 50  0000 C CNN
F 1 "22pF" V 11439 1950 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 11638 1800 50  0001 C CNN
F 3 "~" H 11600 1950 50  0001 C CNN
	1    11600 1950
	0    1    1    0   
$EndComp
Text Notes 11250 4000 0    50   ~ 10
Summing Module\nGain: -inf to 0 dB per Ch.
Wire Wire Line
	11350 2300 11750 2300
$Comp
L power:GND #PWR0311
U 1 1 5FFF6777
P 11350 3300
AR Path="/60AA662F/5FFF6777" Ref="#PWR0311"  Part="1" 
AR Path="/60AE7597/5FFF6777" Ref="#PWR0411"  Part="1" 
AR Path="/60AE80F3/5FFF6777" Ref="#PWR0511"  Part="1" 
AR Path="/5FFF6777" Ref="#PWR0130"  Part="1" 
F 0 "#PWR0311" H 11350 3050 50  0001 C CNN
F 1 "GND" H 11355 3127 50  0000 C CNN
F 2 "" H 11350 3300 50  0001 C CNN
F 3 "" H 11350 3300 50  0001 C CNN
	1    11350 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	11350 2300 11350 1950
Wire Wire Line
	11350 1950 11450 1950
Connection ~ 11350 2300
Wire Wire Line
	11450 3100 11350 3100
Wire Wire Line
	11350 3100 11350 3300
Wire Wire Line
	11350 2900 11450 2900
Wire Wire Line
	10450 2600 10450 2700
$Comp
L power:GND #PWR0309
U 1 1 5FF79FFE
P 10450 3000
AR Path="/60AA662F/5FF79FFE" Ref="#PWR0309"  Part="1" 
AR Path="/60AE7597/5FF79FFE" Ref="#PWR0409"  Part="1" 
AR Path="/60AE80F3/5FF79FFE" Ref="#PWR0509"  Part="1" 
AR Path="/5FF79FFE" Ref="#PWR0131"  Part="1" 
F 0 "#PWR0309" H 10450 2750 50  0001 C CNN
F 1 "GND" H 10455 2827 50  0000 C CNN
F 2 "" H 10450 3000 50  0001 C CNN
F 3 "" H 10450 3000 50  0001 C CNN
	1    10450 3000
	1    0    0    -1  
$EndComp
Wire Wire Line
	12050 3000 12150 3000
Wire Wire Line
	11750 1950 12150 1950
Wire Wire Line
	12150 1950 12150 2300
Connection ~ 12150 3000
Wire Wire Line
	12050 2300 12150 2300
Connection ~ 12150 2300
$Comp
L power:GND #PWR0306
U 1 1 5FCA62EC
P 10450 2250
AR Path="/60AA662F/5FCA62EC" Ref="#PWR0306"  Part="1" 
AR Path="/60AE7597/5FCA62EC" Ref="#PWR0406"  Part="1" 
AR Path="/60AE80F3/5FCA62EC" Ref="#PWR0506"  Part="1" 
AR Path="/5FCA62EC" Ref="#PWR0132"  Part="1" 
F 0 "#PWR0306" H 10450 2000 50  0001 C CNN
F 1 "GND" H 10455 2077 50  0000 C CNN
F 2 "" H 10450 2250 50  0001 C CNN
F 3 "" H 10450 2250 50  0001 C CNN
	1    10450 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	10450 1850 10450 1950
Wire Wire Line
	9950 1850 10000 1850
$Comp
L power:GND #PWR0327
U 1 1 5FD303BF
P 11100 4300
AR Path="/60AA662F/5FD303BF" Ref="#PWR0327"  Part="1" 
AR Path="/60AE7597/5FD303BF" Ref="#PWR0427"  Part="1" 
AR Path="/60AE80F3/5FD303BF" Ref="#PWR0527"  Part="1" 
AR Path="/5FD303BF" Ref="#PWR0133"  Part="1" 
F 0 "#PWR0327" H 11100 4050 50  0001 C CNN
F 1 "GND" H 11105 4127 50  0000 C CNN
F 2 "" H 11100 4300 50  0001 C CNN
F 3 "" H 11100 4300 50  0001 C CNN
	1    11100 4300
	1    0    0    -1  
$EndComp
$Comp
L Device:R_POT_Dual RV305
U 1 1 5FD69197
P 10550 3850
AR Path="/60AA662F/5FD69197" Ref="RV305"  Part="1" 
AR Path="/60AE7597/5FD69197" Ref="RV405"  Part="1" 
AR Path="/60AE80F3/5FD69197" Ref="RV505"  Part="1" 
AR Path="/5FD69197" Ref="RV105"  Part="1" 
F 0 "RV305" V 10350 3650 50  0000 R CNN
F 1 "50K log. st." V 10250 3650 50  0000 R CNN
F 2 "c3lingo_unit-footprints:Potentiometer_Alps_RK09K_Double_Vertical" H 10800 3775 50  0001 C CNN
F 3 "https://tech.alpsalpine.com/prod/e/pdf/potentiometer/rotarypotentiometers/rk09k/rk09k.pdf" H 10800 3775 50  0001 C CNN
F 4 "Alps RK09K12C0A2S (dual, vert.)" H 10550 3850 50  0001 C CNN "Model"
	1    10550 3850
	0    1    -1   0   
$EndComp
Wire Wire Line
	10450 3850 10450 3950
Wire Wire Line
	10450 3350 10450 3450
Connection ~ 11000 2850
Wire Wire Line
	11000 2850 11000 2900
Wire Wire Line
	11000 2100 11000 2850
$Comp
L Connector:TestPoint TP302
U 1 1 5FC89275
P 10000 2600
AR Path="/60AA662F/5FC89275" Ref="TP302"  Part="1" 
AR Path="/60AE7597/5FC89275" Ref="TP402"  Part="1" 
AR Path="/60AE80F3/5FC89275" Ref="TP502"  Part="1" 
AR Path="/5FC89275" Ref="TP102"  Part="1" 
F 0 "TP302" H 10000 2925 50  0000 C CNN
F 1 "MicX" H 10000 2834 50  0000 C CNN
F 2 "TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm" H 10200 2600 50  0001 C CNN
F 3 "~" H 10200 2600 50  0001 C CNN
	1    10000 2600
	1    0    0    -1  
$EndComp
Connection ~ 10000 2600
$Comp
L Connector:TestPoint TP303
U 1 1 5FC89B55
P 10000 3350
AR Path="/60AA662F/5FC89B55" Ref="TP303"  Part="1" 
AR Path="/60AE7597/5FC89B55" Ref="TP403"  Part="1" 
AR Path="/60AE80F3/5FC89B55" Ref="TP503"  Part="1" 
AR Path="/5FC89B55" Ref="TP103"  Part="1" 
F 0 "TP303" H 10000 3675 50  0000 C CNN
F 1 "MicA" H 10000 3584 50  0000 C CNN
F 2 "TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm" H 10200 3350 50  0001 C CNN
F 3 "~" H 10200 3350 50  0001 C CNN
	1    10000 3350
	1    0    0    -1  
$EndComp
$Comp
L Connector:TestPoint TP304
U 1 1 5FC8A1ED
P 10000 3850
AR Path="/60AA662F/5FC8A1ED" Ref="TP304"  Part="1" 
AR Path="/60AE7597/5FC8A1ED" Ref="TP404"  Part="1" 
AR Path="/60AE80F3/5FC8A1ED" Ref="TP504"  Part="1" 
AR Path="/5FC8A1ED" Ref="TP104"  Part="1" 
F 0 "TP304" H 10000 4175 50  0000 C CNN
F 1 "MicB" H 10000 4084 50  0000 C CNN
F 2 "TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm" H 10200 3850 50  0001 C CNN
F 3 "~" H 10200 3850 50  0001 C CNN
	1    10000 3850
	1    0    0    -1  
$EndComp
$Comp
L Connector:TestPoint TP301
U 1 1 5FC8AC2C
P 10000 1850
AR Path="/60AA662F/5FC8AC2C" Ref="TP301"  Part="1" 
AR Path="/60AE7597/5FC8AC2C" Ref="TP401"  Part="1" 
AR Path="/60AE80F3/5FC8AC2C" Ref="TP501"  Part="1" 
AR Path="/5FC8AC2C" Ref="TP101"  Part="1" 
F 0 "TP301" H 10000 2083 50  0000 C CNN
F 1 "Stage" H 10000 2174 50  0000 C CNN
F 2 "TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm" H 10200 1850 50  0001 C CNN
F 3 "~" H 10200 1850 50  0001 C CNN
	1    10000 1850
	1    0    0    -1  
$EndComp
Connection ~ 10000 1850
Wire Wire Line
	11000 2900 11350 2900
Wire Wire Line
	12150 2300 12150 3000
Wire Wire Line
	11350 2300 11350 2900
$Comp
L Device:R_POT RV303
U 1 1 6016D9DA
P 10450 2850
AR Path="/60AA662F/6016D9DA" Ref="RV303"  Part="1" 
AR Path="/60AE7597/6016D9DA" Ref="RV403"  Part="1" 
AR Path="/60AE80F3/6016D9DA" Ref="RV503"  Part="1" 
AR Path="/6016D9DA" Ref="RV103"  Part="1" 
F 0 "RV303" H 10381 2804 50  0000 R CNN
F 1 "50K log." H 10381 2895 50  0000 R CNN
F 2 "c3lingo_unit-footprints:Potentiometer_Alps_RK09K_Double_Vertical" V 10380 2850 50  0001 C CNN
F 3 "https://tech.alpsalpine.com/prod/e/pdf/potentiometer/rotarypotentiometers/rk09k/rk09k.pdf" H 10450 2850 50  0001 C CNN
F 4 "Alps RK09K12C0A2S (dual, vert.)" H 10450 2850 50  0001 C CNN "Model"
	1    10450 2850
	1    0    0    1   
$EndComp
$Comp
L Device:R R301
U 1 1 5FFA3C32
P 10800 2100
AR Path="/60AA662F/5FFA3C32" Ref="R301"  Part="1" 
AR Path="/60AE7597/5FFA3C32" Ref="R401"  Part="1" 
AR Path="/60AE80F3/5FFA3C32" Ref="R501"  Part="1" 
AR Path="/5FFA3C32" Ref="R101"  Part="1" 
F 0 "R301" V 10593 2100 50  0000 C CNN
F 1 "22K" V 10684 2100 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 10730 2100 50  0001 C CNN
F 3 "~" H 10800 2100 50  0001 C CNN
	1    10800 2100
	0    1    1    0   
$EndComp
Connection ~ 11350 2900
$Comp
L Device:R R308
U 1 1 601F3758
P 10800 2850
AR Path="/60AA662F/601F3758" Ref="R308"  Part="1" 
AR Path="/60AE7597/601F3758" Ref="R408"  Part="1" 
AR Path="/60AE80F3/601F3758" Ref="R508"  Part="1" 
AR Path="/601F3758" Ref="R108"  Part="1" 
F 0 "R308" V 10593 2850 50  0000 C CNN
F 1 "22K" V 10684 2850 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 10730 2850 50  0001 C CNN
F 3 "~" H 10800 2850 50  0001 C CNN
	1    10800 2850
	0    1    1    0   
$EndComp
Wire Wire Line
	11100 3750 11100 4250
$Comp
L Device:R R317
U 1 1 60218A82
P 10800 3600
AR Path="/60AA662F/60218A82" Ref="R317"  Part="1" 
AR Path="/60AE7597/60218A82" Ref="R417"  Part="1" 
AR Path="/60AE80F3/60218A82" Ref="R517"  Part="1" 
AR Path="/60218A82" Ref="R117"  Part="1" 
F 0 "R317" V 10593 3600 50  0000 C CNN
F 1 "22K" V 10684 3600 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 10730 3600 50  0001 C CNN
F 3 "~" H 10800 3600 50  0001 C CNN
	1    10800 3600
	0    1    1    0   
$EndComp
$Comp
L Device:R R319
U 1 1 6021952F
P 10800 4100
AR Path="/60AA662F/6021952F" Ref="R319"  Part="1" 
AR Path="/60AE7597/6021952F" Ref="R419"  Part="1" 
AR Path="/60AE80F3/6021952F" Ref="R519"  Part="1" 
AR Path="/6021952F" Ref="R119"  Part="1" 
F 0 "R319" V 10593 4100 50  0000 C CNN
F 1 "22K" V 10684 4100 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 10730 4100 50  0001 C CNN
F 3 "~" H 10800 4100 50  0001 C CNN
	1    10800 4100
	0    1    1    0   
$EndComp
Wire Wire Line
	10950 2850 11000 2850
Wire Wire Line
	10600 2100 10650 2100
Wire Wire Line
	10600 2850 10650 2850
Wire Wire Line
	10950 2100 11000 2100
Wire Wire Line
	10950 3600 11000 3600
Connection ~ 11000 3600
Wire Wire Line
	11000 3600 11000 4100
Wire Wire Line
	10950 4100 11000 4100
Wire Wire Line
	10450 3750 11100 3750
Connection ~ 11100 4250
Wire Wire Line
	11100 4250 11100 4300
Wire Wire Line
	10450 4250 11100 4250
Wire Wire Line
	10000 3350 10450 3350
Wire Wire Line
	10000 3850 10450 3850
Wire Wire Line
	10000 2600 10450 2600
Wire Wire Line
	10000 1850 10450 1850
Connection ~ 11000 2900
Wire Wire Line
	11000 2900 11000 3600
Wire Wire Line
	12150 3000 12550 3000
Wire Wire Line
	12850 4200 12850 4300
$Comp
L Device:R R318
U 1 1 5FF18A7E
P 12850 4050
AR Path="/60AA662F/5FF18A7E" Ref="R318"  Part="1" 
AR Path="/60AE7597/5FF18A7E" Ref="R418"  Part="1" 
AR Path="/60AE80F3/5FF18A7E" Ref="R518"  Part="1" 
AR Path="/5FF18A7E" Ref="R118"  Part="1" 
F 0 "R318" H 12780 4096 50  0000 R CNN
F 1 "2.2K" H 12780 4005 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 12780 4050 50  0001 C CNN
F 3 "~" H 12850 4050 50  0001 C CNN
	1    12850 4050
	-1   0    0    -1  
$EndComp
Wire Wire Line
	13500 2900 13500 3650
Wire Wire Line
	4900 3000 5000 3000
Wire Wire Line
	13400 3650 13500 3650
Wire Wire Line
	13000 3650 13100 3650
Wire Wire Line
	7300 3250 8600 3250
NoConn ~ 14100 3300
NoConn ~ 14000 3300
Wire Wire Line
	14000 2550 14000 2700
Wire Wire Line
	14300 2550 14300 2600
$Comp
L Amplifier_Audio:LM386 U303
U 1 1 5FB67AE3
P 14000 3000
AR Path="/60AA662F/5FB67AE3" Ref="U303"  Part="1" 
AR Path="/60AE7597/5FB67AE3" Ref="U403"  Part="1" 
AR Path="/60AE80F3/5FB67AE3" Ref="U503"  Part="1" 
AR Path="/5FB67AE3" Ref="U103"  Part="1" 
F 0 "U303" H 14344 3046 50  0000 L CNN
F 1 "LM386N-4" H 14344 2955 50  0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 14100 3100 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm386.pdf" H 14200 3200 50  0001 C CNN
F 4 "+DIP-8 Socket" H 14000 3000 50  0001 C CNN "Model"
	1    14000 3000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0307
U 1 1 5FCF788F
P 14300 2600
AR Path="/60AA662F/5FCF788F" Ref="#PWR0307"  Part="1" 
AR Path="/60AE7597/5FCF788F" Ref="#PWR0407"  Part="1" 
AR Path="/60AE80F3/5FCF788F" Ref="#PWR0507"  Part="1" 
AR Path="/5FCF788F" Ref="#PWR0134"  Part="1" 
F 0 "#PWR0307" H 14300 2350 50  0001 C CNN
F 1 "GND" H 14305 2427 50  0000 C CNN
F 2 "" H 14300 2600 50  0001 C CNN
F 3 "" H 14300 2600 50  0001 C CNN
	1    14300 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	13900 2100 13900 2700
Wire Wire Line
	14700 1950 14700 1800
Connection ~ 14700 1950
Wire Wire Line
	14700 1950 14900 1950
Wire Wire Line
	14900 1950 14900 2000
$Comp
L power:GND #PWR0305
U 1 1 60200022
P 14900 2000
AR Path="/60AA662F/60200022" Ref="#PWR0305"  Part="1" 
AR Path="/60AE7597/60200022" Ref="#PWR0405"  Part="1" 
AR Path="/60AE80F3/60200022" Ref="#PWR0505"  Part="1" 
AR Path="/60200022" Ref="#PWR0135"  Part="1" 
F 0 "#PWR0305" H 14900 1750 50  0001 C CNN
F 1 "GND" H 14905 1827 50  0000 C CNN
F 2 "" H 14900 2000 50  0001 C CNN
F 3 "" H 14900 2000 50  0001 C CNN
	1    14900 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	14700 1800 14600 1800
Wire Wire Line
	14700 2100 14700 1950
Wire Wire Line
	14300 2100 14700 2100
Connection ~ 13900 2100
Connection ~ 13900 1800
Wire Wire Line
	13900 2100 14000 2100
Wire Wire Line
	13900 1800 13900 2100
Wire Wire Line
	13900 1800 14300 1800
Wire Wire Line
	13900 1700 13900 1800
$Comp
L Device:CP C302
U 1 1 60184128
P 14450 1800
AR Path="/60AA662F/60184128" Ref="C302"  Part="1" 
AR Path="/60AE7597/60184128" Ref="C402"  Part="1" 
AR Path="/60AE80F3/60184128" Ref="C502"  Part="1" 
AR Path="/60184128" Ref="C102"  Part="1" 
F 0 "C302" V 14195 1800 50  0000 C CNN
F 1 "100uF" V 14286 1800 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 14488 1650 50  0001 C CNN
F 3 "~" H 14450 1800 50  0001 C CNN
F 4 "" H 14450 1800 50  0001 C CNN "Model"
	1    14450 1800
	0    -1   1    0   
$EndComp
$Comp
L Device:C C305
U 1 1 5FF934F9
P 14150 2100
AR Path="/60AA662F/5FF934F9" Ref="C305"  Part="1" 
AR Path="/60AE7597/5FF934F9" Ref="C405"  Part="1" 
AR Path="/60AE80F3/5FF934F9" Ref="C505"  Part="1" 
AR Path="/5FF934F9" Ref="C105"  Part="1" 
F 0 "C305" V 13898 2100 50  0000 C CNN
F 1 "100nF" V 13989 2100 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 14188 1950 50  0001 C CNN
F 3 "~" H 14150 2100 50  0001 C CNN
	1    14150 2100
	0    -1   1    0   
$EndComp
$Comp
L Device:R R313
U 1 1 5FE4A41D
P 12850 3250
AR Path="/60AA662F/5FE4A41D" Ref="R313"  Part="1" 
AR Path="/60AE7597/5FE4A41D" Ref="R413"  Part="1" 
AR Path="/60AE80F3/5FE4A41D" Ref="R513"  Part="1" 
AR Path="/5FE4A41D" Ref="R113"  Part="1" 
F 0 "R313" H 12780 3296 50  0000 R CNN
F 1 "330K" H 12780 3205 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 12780 3250 50  0001 C CNN
F 3 "~" H 12850 3250 50  0001 C CNN
	1    12850 3250
	-1   0    0    -1  
$EndComp
Wire Wire Line
	8600 3000 8600 3250
$Comp
L Device:CP C308
U 1 1 5FD130B1
P 14150 2550
AR Path="/60AA662F/5FD130B1" Ref="C308"  Part="1" 
AR Path="/60AE7597/5FD130B1" Ref="C408"  Part="1" 
AR Path="/60AE80F3/5FD130B1" Ref="C508"  Part="1" 
AR Path="/5FD130B1" Ref="C108"  Part="1" 
F 0 "C308" V 14405 2550 50  0000 C CNN
F 1 "100uF" V 14314 2550 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 14188 2400 50  0001 C CNN
F 3 "~" H 14150 2550 50  0001 C CNN
F 4 "" H 14150 2550 50  0001 C CNN "Model"
	1    14150 2550
	0    -1   -1   0   
$EndComp
Connection ~ 14800 3000
Wire Wire Line
	14800 3000 14300 3000
Wire Wire Line
	14800 3000 14800 3100
Wire Wire Line
	14900 3000 14800 3000
Wire Wire Line
	13900 3400 13900 3500
Connection ~ 13900 3400
Wire Wire Line
	13700 3400 13900 3400
Wire Wire Line
	13700 3100 13700 3400
Wire Wire Line
	13700 2900 13500 2900
Wire Wire Line
	13900 3300 13900 3400
Wire Wire Line
	12850 3800 12850 3900
$Comp
L power:GND #PWR0328
U 1 1 5FBBA57F
P 12850 4300
AR Path="/60AA662F/5FBBA57F" Ref="#PWR0328"  Part="1" 
AR Path="/60AE7597/5FBBA57F" Ref="#PWR0428"  Part="1" 
AR Path="/60AE80F3/5FBBA57F" Ref="#PWR0528"  Part="1" 
AR Path="/5FBBA57F" Ref="#PWR0136"  Part="1" 
F 0 "#PWR0328" H 12850 4050 50  0001 C CNN
F 1 "GND" H 12855 4127 50  0000 C CNN
F 2 "" H 12850 4300 50  0001 C CNN
F 3 "" H 12850 4300 50  0001 C CNN
	1    12850 4300
	1    0    0    -1  
$EndComp
Wire Wire Line
	12850 3400 12850 3500
$Comp
L Device:R_POT RV304
U 1 1 5FBA2B4E
P 12850 3650
AR Path="/60AA662F/5FBA2B4E" Ref="RV304"  Part="1" 
AR Path="/60AE7597/5FBA2B4E" Ref="RV404"  Part="1" 
AR Path="/60AE80F3/5FBA2B4E" Ref="RV504"  Part="1" 
AR Path="/5FBA2B4E" Ref="RV104"  Part="1" 
F 0 "RV304" H 12781 3604 50  0000 R CNN
F 1 "50K log." H 12781 3695 50  0000 R CNN
F 2 "Potentiometer_THT:Potentiometer_Alps_RK09K_Single_Horizontal" H 12850 3650 50  0001 C CNN
F 3 "https://tech.alpsalpine.com/prod/e/pdf/potentiometer/rotarypotentiometers/rk09k/rk09k.pdf" H 12850 3650 50  0001 C CNN
F 4 "RK09K1110B1R (single, horiz.)" H 12850 3650 50  0001 C CNN "Model"
	1    12850 3650
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR0312
U 1 1 5FB9DA2E
P 13900 3500
AR Path="/60AA662F/5FB9DA2E" Ref="#PWR0312"  Part="1" 
AR Path="/60AE7597/5FB9DA2E" Ref="#PWR0412"  Part="1" 
AR Path="/60AE80F3/5FB9DA2E" Ref="#PWR0512"  Part="1" 
AR Path="/5FB9DA2E" Ref="#PWR0137"  Part="1" 
F 0 "#PWR0312" H 13900 3250 50  0001 C CNN
F 1 "GND" H 13905 3327 50  0000 C CNN
F 2 "" H 13900 3500 50  0001 C CNN
F 3 "" H 13900 3500 50  0001 C CNN
	1    13900 3500
	1    0    0    -1  
$EndComp
$Comp
L power:+15V #PWR0301
U 1 1 5FB9C332
P 13900 1700
AR Path="/60AA662F/5FB9C332" Ref="#PWR0301"  Part="1" 
AR Path="/60AE7597/5FB9C332" Ref="#PWR0401"  Part="1" 
AR Path="/60AE80F3/5FB9C332" Ref="#PWR0501"  Part="1" 
AR Path="/5FB9C332" Ref="#PWR0138"  Part="1" 
F 0 "#PWR0301" H 13900 1550 50  0001 C CNN
F 1 "+15V" H 13915 1873 50  0000 C CNN
F 2 "" H 13900 1700 50  0001 C CNN
F 3 "" H 13900 1700 50  0001 C CNN
	1    13900 1700
	1    0    0    -1  
$EndComp
$Comp
L Device:R R316
U 1 1 5FB6DC67
P 14800 3550
AR Path="/60AA662F/5FB6DC67" Ref="R316"  Part="1" 
AR Path="/60AE7597/5FB6DC67" Ref="R416"  Part="1" 
AR Path="/60AE80F3/5FB6DC67" Ref="R516"  Part="1" 
AR Path="/5FB6DC67" Ref="R116"  Part="1" 
F 0 "R316" H 14870 3596 50  0000 L CNN
F 1 "12R" H 14870 3505 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 14730 3550 50  0001 C CNN
F 3 "~" H 14800 3550 50  0001 C CNN
	1    14800 3550
	1    0    0    -1  
$EndComp
$Comp
L Device:CP C310
U 1 1 5FB6C2ED
P 15050 3000
AR Path="/60AA662F/5FB6C2ED" Ref="C310"  Part="1" 
AR Path="/60AE7597/5FB6C2ED" Ref="C410"  Part="1" 
AR Path="/60AE80F3/5FB6C2ED" Ref="C510"  Part="1" 
AR Path="/5FB6C2ED" Ref="C110"  Part="1" 
F 0 "C310" V 15305 3000 50  0000 C CNN
F 1 "220uF lowESR" V 15214 3000 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 15088 2850 50  0001 C CNN
F 3 "~" H 15050 3000 50  0001 C CNN
F 4 "" H 15050 3000 50  0001 C CNN "Model"
	1    15050 3000
	0    -1   -1   0   
$EndComp
$Comp
L Device:C C312
U 1 1 5FB69AC8
P 14800 3250
AR Path="/60AA662F/5FB69AC8" Ref="C312"  Part="1" 
AR Path="/60AE7597/5FB69AC8" Ref="C412"  Part="1" 
AR Path="/60AE80F3/5FB69AC8" Ref="C512"  Part="1" 
AR Path="/5FB69AC8" Ref="C112"  Part="1" 
F 0 "C312" H 14915 3296 50  0000 L CNN
F 1 "47nF" H 14915 3205 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 14838 3100 50  0001 C CNN
F 3 "~" H 14800 3250 50  0001 C CNN
	1    14800 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	6300 3000 6400 3000
Text Notes 4650 2650 0    50   ~ 0
HP Filter 200 Hz\nf_c = 1/(2*PI*R*C)\n160 Hz @ 1K
Wire Wire Line
	3550 1950 3550 2100
Connection ~ 3550 1950
Wire Wire Line
	3300 1950 3550 1950
Wire Wire Line
	3300 1800 3300 1950
Wire Wire Line
	3550 1800 3550 1950
Connection ~ 3550 2100
Wire Wire Line
	3550 2700 3550 2100
Wire Wire Line
	7900 3900 7900 4000
Connection ~ 7900 3900
Wire Wire Line
	8000 3900 7900 3900
Wire Wire Line
	7900 3800 7900 3900
NoConn ~ 3750 2700
Wire Wire Line
	7300 2300 7300 3250
Connection ~ 7300 2300
Wire Wire Line
	7050 2300 7050 2400
Connection ~ 7050 2300
Wire Wire Line
	7050 2300 7300 2300
Wire Wire Line
	7300 1750 7300 2300
Connection ~ 6400 2150
Wire Wire Line
	6400 1750 6400 2150
Wire Wire Line
	6650 1750 6400 1750
Wire Wire Line
	7300 1750 7050 1750
$Comp
L Device:C C306
U 1 1 60AA92C3
P 6650 2150
AR Path="/60AA662F/60AA92C3" Ref="C306"  Part="1" 
AR Path="/60AE7597/60AA92C3" Ref="C406"  Part="1" 
AR Path="/60AE80F3/60AA92C3" Ref="C506"  Part="1" 
AR Path="/60AA92C3" Ref="C106"  Part="1" 
F 0 "C306" V 6398 2150 50  0000 C CNN
F 1 "100nF" V 6489 2150 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 6688 2000 50  0001 C CNN
F 3 "~" H 6650 2150 50  0001 C CNN
	1    6650 2150
	0    1    1    0   
$EndComp
$Comp
L Device:R R305
U 1 1 60AAAB08
P 6650 2550
AR Path="/60AA662F/60AAAB08" Ref="R305"  Part="1" 
AR Path="/60AE7597/60AAAB08" Ref="R405"  Part="1" 
AR Path="/60AE80F3/60AAAB08" Ref="R505"  Part="1" 
AR Path="/60AAAB08" Ref="R105"  Part="1" 
F 0 "R305" V 6443 2550 50  0000 C CNN
F 1 "56R" V 6534 2550 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6580 2550 50  0001 C CNN
F 3 "~" H 6650 2550 50  0001 C CNN
	1    6650 2550
	0    1    1    0   
$EndComp
$Comp
L Device:R_POT RV302
U 1 1 60B0D55A
P 7050 2550
AR Path="/60AA662F/60B0D55A" Ref="RV302"  Part="1" 
AR Path="/60AE7597/60B0D55A" Ref="RV402"  Part="1" 
AR Path="/60AE80F3/60B0D55A" Ref="RV502"  Part="1" 
AR Path="/60B0D55A" Ref="RV102"  Part="1" 
F 0 "RV302" V 6935 2550 50  0000 C CNN
F 1 "10K log." V 6844 2550 50  0000 C CNN
F 2 "Potentiometer_THT:Potentiometer_Alps_RK09K_Single_Vertical" V 6980 2550 50  0001 C CNN
F 3 "https://tech.alpsalpine.com/prod/e/pdf/potentiometer/rotarypotentiometers/rk09k/rk09k.pdf" H 7050 2550 50  0001 C CNN
F 4 "Alps RK09K1130AJ3 (single, vert.)" H 7050 2550 50  0001 C CNN "Model"
	1    7050 2550
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6500 2550 6400 2550
Wire Wire Line
	6400 2150 6500 2150
Wire Wire Line
	6400 2150 6400 2550
Connection ~ 6400 2550
Wire Wire Line
	6800 2550 6900 2550
Wire Wire Line
	6800 2150 7050 2150
Wire Wire Line
	7050 2150 7050 2300
Wire Wire Line
	6400 2550 6400 3000
$Comp
L Switch:SW_Push SW302
U 1 1 60D151FD
P 6850 1750
AR Path="/60AA662F/60D151FD" Ref="SW302"  Part="1" 
AR Path="/60AE7597/60D151FD" Ref="SW402"  Part="1" 
AR Path="/60AE80F3/60D151FD" Ref="SW502"  Part="1" 
AR Path="/60D151FD" Ref="SW302"  Part="1" 
F 0 "SW302" H 6850 2035 50  0000 C CNN
F 1 "Mute_X" H 6850 1944 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 6850 1950 50  0001 C CNN
F 3 "https://www.mouser.de/datasheet/2/26/pusbutton-switches-serie-1400N-1519098.pdf" H 6850 1950 50  0001 C CNN
F 4 "APEM 1415NC6 (solder lug)" H 6850 1750 50  0001 C CNN "Model"
	1    6850 1750
	1    0    0    -1  
$EndComp
NoConn ~ 7200 2550
Connection ~ 6400 3000
$Comp
L Switch:SW_DPDT_x2 SW301
U 1 1 60D16A9A
P 6850 1100
AR Path="/60AA662F/60D16A9A" Ref="SW301"  Part="1" 
AR Path="/60AE7597/60D16A9A" Ref="SW401"  Part="1" 
AR Path="/60AE80F3/60D16A9A" Ref="SW501"  Part="1" 
AR Path="/60D16A9A" Ref="SW101"  Part="1" 
F 0 "SW301" H 6850 1385 50  0000 C CNN
F 1 "OnAir_X" H 6850 1294 50  0000 C CNN
F 2 "c3lingo_unit-footprints:SW_APEM_MHPS2273_DPDT" H 6850 1400 50  0001 C CNN
F 3 "https://www.mouser.de/datasheet/2/26/MHPS_Q42014-535293.pdf" H 6850 1400 50  0001 C CNN
F 4 "APEM MHPS2273" H 6850 1100 50  0001 C CNN "Model"
	1    6850 1100
	1    0    0    -1  
$EndComp
Wire Wire Line
	6400 3000 6400 3150
Wire Wire Line
	6400 3350 6400 3550
Wire Wire Line
	6500 3350 6400 3350
Wire Wire Line
	6400 3150 6500 3150
$Comp
L power:GND #PWR0313
U 1 1 60BBC462
P 6400 3550
AR Path="/60AA662F/60BBC462" Ref="#PWR0313"  Part="1" 
AR Path="/60AE7597/60BBC462" Ref="#PWR0413"  Part="1" 
AR Path="/60AE80F3/60BBC462" Ref="#PWR0513"  Part="1" 
AR Path="/60BBC462" Ref="#PWR0139"  Part="1" 
F 0 "#PWR0313" H 6400 3300 50  0001 C CNN
F 1 "GND" H 6405 3377 50  0000 C CNN
F 2 "" H 6400 3550 50  0001 C CNN
F 3 "" H 6400 3550 50  0001 C CNN
	1    6400 3550
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:LM358 U302
U 1 1 60A8F329
P 6800 3250
AR Path="/60AA662F/60A8F329" Ref="U302"  Part="1" 
AR Path="/60AE7597/60A8F329" Ref="U402"  Part="1" 
AR Path="/60AE80F3/60A8F329" Ref="U502"  Part="1" 
AR Path="/60A8F329" Ref="U102"  Part="1" 
F 0 "U302" H 6800 2883 50  0000 C CNN
F 1 "LM833N" H 6800 2974 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 6800 3250 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm833.pdf" H 6800 3250 50  0001 C CNN
F 4 "+DIP-8 Socket" H 6800 3250 50  0001 C CNN "Model"
	1    6800 3250
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR0319
U 1 1 609E4DD0
P 14800 3700
AR Path="/60AA662F/609E4DD0" Ref="#PWR0319"  Part="1" 
AR Path="/60AE7597/609E4DD0" Ref="#PWR0419"  Part="1" 
AR Path="/60AE80F3/609E4DD0" Ref="#PWR0519"  Part="1" 
AR Path="/609E4DD0" Ref="#PWR0140"  Part="1" 
F 0 "#PWR0319" H 14800 3450 50  0001 C CNN
F 1 "GND" H 14805 3527 50  0000 C CNN
F 2 "" H 14800 3700 50  0001 C CNN
F 3 "" H 14800 3700 50  0001 C CNN
	1    14800 3700
	1    0    0    -1  
$EndComp
NoConn ~ 3650 2700
NoConn ~ 3650 3300
$Comp
L Device:CP C314
U 1 1 5FFF6761
P 13250 3650
AR Path="/60AA662F/5FFF6761" Ref="C314"  Part="1" 
AR Path="/60AE7597/5FFF6761" Ref="C414"  Part="1" 
AR Path="/60AE80F3/5FFF6761" Ref="C514"  Part="1" 
AR Path="/5FFF6761" Ref="C114"  Part="1" 
F 0 "C314" V 13505 3650 50  0000 C CNN
F 1 "1uF" V 13414 3650 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 13288 3500 50  0001 C CNN
F 3 "~" H 13250 3650 50  0001 C CNN
F 4 "16V low ESR electrolytic // plastic film" H 13250 3650 50  0001 C CNN "Model"
	1    13250 3650
	0    -1   -1   0   
$EndComp
Text Notes 13500 4000 0    50   ~ 10
Headphone driver\nGain: 26 dB (20)
$Comp
L Amplifier_Operational:LM358 U302
U 3 1 5FFAA8AC
P 8300 4000
AR Path="/60AA662F/5FFAA8AC" Ref="U302"  Part="3" 
AR Path="/60AE7597/5FFAA8AC" Ref="U402"  Part="3" 
AR Path="/60AE80F3/5FFAA8AC" Ref="U502"  Part="3" 
AR Path="/5FFAA8AC" Ref="U102"  Part="3" 
F 0 "U302" V 7975 4000 50  0000 C CNN
F 1 "LM833N" V 8066 4000 50  0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 8300 4000 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm833.pdf" H 8300 4000 50  0001 C CNN
F 4 "+DIP-8 Socket" H 8300 4000 50  0001 C CNN "Model"
	3    8300 4000
	0    1    1    0   
$EndComp
$Comp
L power:-15V #PWR0320
U 1 1 5FFAA8A6
P 7900 3800
AR Path="/60AA662F/5FFAA8A6" Ref="#PWR0320"  Part="1" 
AR Path="/60AE7597/5FFAA8A6" Ref="#PWR0420"  Part="1" 
AR Path="/60AE80F3/5FFAA8A6" Ref="#PWR0520"  Part="1" 
AR Path="/5FFAA8A6" Ref="#PWR0141"  Part="1" 
F 0 "#PWR0320" H 7900 3900 50  0001 C CNN
F 1 "-15V" H 7915 3973 50  0000 C CNN
F 2 "" H 7900 3800 50  0001 C CNN
F 3 "" H 7900 3800 50  0001 C CNN
	1    7900 3800
	1    0    0    -1  
$EndComp
$Comp
L power:+15V #PWR0321
U 1 1 5FFAA8A0
P 8700 3800
AR Path="/60AA662F/5FFAA8A0" Ref="#PWR0321"  Part="1" 
AR Path="/60AE7597/5FFAA8A0" Ref="#PWR0421"  Part="1" 
AR Path="/60AE80F3/5FFAA8A0" Ref="#PWR0521"  Part="1" 
AR Path="/5FFAA8A0" Ref="#PWR0142"  Part="1" 
F 0 "#PWR0321" H 8700 3650 50  0001 C CNN
F 1 "+15V" H 8715 3973 50  0000 C CNN
F 2 "" H 8700 3800 50  0001 C CNN
F 3 "" H 8700 3800 50  0001 C CNN
	1    8700 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	8600 3900 8700 3900
Wire Wire Line
	8700 3900 8700 3800
Wire Wire Line
	8700 3900 8700 4000
Connection ~ 8700 3900
$Comp
L Device:C C317
U 1 1 5FFAA892
P 8700 4150
AR Path="/60AA662F/5FFAA892" Ref="C317"  Part="1" 
AR Path="/60AE7597/5FFAA892" Ref="C417"  Part="1" 
AR Path="/60AE80F3/5FFAA892" Ref="C517"  Part="1" 
AR Path="/5FFAA892" Ref="C117"  Part="1" 
F 0 "C317" H 8585 4104 50  0000 R CNN
F 1 "100nF" H 8585 4195 50  0000 R CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 8738 4000 50  0001 C CNN
F 3 "~" H 8700 4150 50  0001 C CNN
	1    8700 4150
	-1   0    0    1   
$EndComp
$Comp
L Device:C C316
U 1 1 5FFAA88C
P 7900 4150
AR Path="/60AA662F/5FFAA88C" Ref="C316"  Part="1" 
AR Path="/60AE7597/5FFAA88C" Ref="C416"  Part="1" 
AR Path="/60AE80F3/5FFAA88C" Ref="C516"  Part="1" 
AR Path="/5FFAA88C" Ref="C116"  Part="1" 
F 0 "C316" H 7785 4104 50  0000 R CNN
F 1 "100nF" H 7785 4195 50  0000 R CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 7938 4000 50  0001 C CNN
F 3 "~" H 7900 4150 50  0001 C CNN
	1    7900 4150
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0326
U 1 1 5FFAA880
P 8700 4300
AR Path="/60AA662F/5FFAA880" Ref="#PWR0326"  Part="1" 
AR Path="/60AE7597/5FFAA880" Ref="#PWR0426"  Part="1" 
AR Path="/60AE80F3/5FFAA880" Ref="#PWR0526"  Part="1" 
AR Path="/5FFAA880" Ref="#PWR0143"  Part="1" 
F 0 "#PWR0326" H 8700 4050 50  0001 C CNN
F 1 "GND" H 8705 4127 50  0000 C CNN
F 2 "" H 8700 4300 50  0001 C CNN
F 3 "" H 8700 4300 50  0001 C CNN
	1    8700 4300
	1    0    0    -1  
$EndComp
Wire Wire Line
	900  3300 1300 3300
Wire Wire Line
	1200 2900 1300 2900
Wire Wire Line
	900  3200 900  3300
$Comp
L Device:R R314
U 1 1 5F84095A
P 3050 3500
AR Path="/60AA662F/5F84095A" Ref="R314"  Part="1" 
AR Path="/60AE7597/5F84095A" Ref="R414"  Part="1" 
AR Path="/60AE80F3/5F84095A" Ref="R514"  Part="1" 
AR Path="/5F84095A" Ref="R114"  Part="1" 
F 0 "R314" V 2843 3500 50  0000 C CNN
F 1 "1K 1%" V 2934 3500 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 2980 3500 50  0001 C CNN
F 3 "~" H 3050 3500 50  0001 C CNN
	1    3050 3500
	0    1    1    0   
$EndComp
$Comp
L Amplifier_Operational:NE5534 U301
U 1 1 5F80D909
P 3650 3000
AR Path="/60AA662F/5F80D909" Ref="U301"  Part="1" 
AR Path="/60AE7597/5F80D909" Ref="U401"  Part="1" 
AR Path="/60AE80F3/5F80D909" Ref="U501"  Part="1" 
AR Path="/5F80D909" Ref="U101"  Part="1" 
F 0 "U301" H 3994 3046 50  0000 L CNN
F 1 "NE5534" H 3994 2955 50  0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 3700 3050 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/ne5534.pdf" H 3700 3150 50  0001 C CNN
F 4 "+DIP-8 Socket" H 3650 3000 50  0001 C CNN "Model"
	1    3650 3000
	1    0    0    1   
$EndComp
Text Notes 5900 4000 0    50   ~ 10
Adjustable Input Gain\nGain: -15 to 30 dB
$Comp
L power:GND #PWR0315
U 1 1 5F923283
P 15450 3650
AR Path="/60AA662F/5F923283" Ref="#PWR0315"  Part="1" 
AR Path="/60AE7597/5F923283" Ref="#PWR0415"  Part="1" 
AR Path="/60AE80F3/5F923283" Ref="#PWR0515"  Part="1" 
AR Path="/5F923283" Ref="#PWR0144"  Part="1" 
F 0 "#PWR0315" H 15450 3400 50  0001 C CNN
F 1 "GND" H 15455 3477 50  0000 C CNN
F 2 "" H 15450 3650 50  0001 C CNN
F 3 "" H 15450 3650 50  0001 C CNN
	1    15450 3650
	1    0    0    -1  
$EndComp
Text Notes 2700 4000 0    50   ~ 10
Mic Preamp\nGain: 50 dB
$Comp
L Device:CP C301
U 1 1 5F863B13
P 4150 1800
AR Path="/60AA662F/5F863B13" Ref="C301"  Part="1" 
AR Path="/60AE7597/5F863B13" Ref="C401"  Part="1" 
AR Path="/60AE80F3/5F863B13" Ref="C501"  Part="1" 
AR Path="/5F863B13" Ref="C101"  Part="1" 
F 0 "C301" V 4405 1800 50  0000 C CNN
F 1 "100uF" V 4314 1800 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 4188 1650 50  0001 C CNN
F 3 "~" H 4150 1800 50  0001 C CNN
F 4 "" H 4150 1800 50  0001 C CNN "Model"
	1    4150 1800
	0    1    -1   0   
$EndComp
Wire Wire Line
	4400 1950 4400 2100
Connection ~ 4400 1950
Wire Wire Line
	4600 1950 4600 2000
Wire Wire Line
	4400 1950 4600 1950
Wire Wire Line
	4400 1800 4400 1950
Wire Wire Line
	4400 4150 4400 4000
Connection ~ 4400 4150
Wire Wire Line
	4600 4150 4600 4200
Wire Wire Line
	4400 4150 4600 4150
Wire Wire Line
	3550 4150 3550 4300
Connection ~ 3550 4150
Wire Wire Line
	3300 4150 3300 4000
Wire Wire Line
	3550 4150 3300 4150
Wire Wire Line
	4000 4000 4400 4000
Wire Wire Line
	4400 4300 4400 4150
Wire Wire Line
	4300 4300 4400 4300
Connection ~ 3550 4000
Wire Wire Line
	3550 4300 4000 4300
Wire Wire Line
	3550 4000 3550 4150
Wire Wire Line
	4400 2100 4000 2100
Wire Wire Line
	4300 1800 4400 1800
Wire Wire Line
	3550 1800 4000 1800
Wire Wire Line
	3550 2100 3700 2100
Wire Wire Line
	3550 3300 3550 4000
Connection ~ 4500 3500
Wire Wire Line
	5000 3500 4500 3500
Wire Wire Line
	5000 3400 5000 3500
Wire Wire Line
	5000 3000 5000 3100
Connection ~ 4500 3000
Wire Wire Line
	4500 3000 4600 3000
$Comp
L Device:R R312
U 1 1 5F86655E
P 5000 3250
AR Path="/60AA662F/5F86655E" Ref="R312"  Part="1" 
AR Path="/60AE7597/5F86655E" Ref="R412"  Part="1" 
AR Path="/60AE80F3/5F86655E" Ref="R512"  Part="1" 
AR Path="/5F86655E" Ref="R112"  Part="1" 
F 0 "R312" H 4930 3204 50  0000 R CNN
F 1 "820R" H 4930 3295 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 4930 3250 50  0001 C CNN
F 3 "~" H 5000 3250 50  0001 C CNN
	1    5000 3250
	-1   0    0    -1  
$EndComp
$Comp
L Device:CP C309
U 1 1 5F864500
P 4750 3000
AR Path="/60AA662F/5F864500" Ref="C309"  Part="1" 
AR Path="/60AE7597/5F864500" Ref="C409"  Part="1" 
AR Path="/60AE80F3/5F864500" Ref="C509"  Part="1" 
AR Path="/5F864500" Ref="C109"  Part="1" 
F 0 "C309" V 5005 3000 50  0000 C CNN
F 1 "1uF" V 4914 3000 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 4788 2850 50  0001 C CNN
F 3 "~" H 4750 3000 50  0001 C CNN
F 4 "16V low ESR electrolytic // plastic film" H 4750 3000 50  0001 C CNN "Model"
	1    4750 3000
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR0304
U 1 1 5F8640B0
P 4600 2000
AR Path="/60AA662F/5F8640B0" Ref="#PWR0304"  Part="1" 
AR Path="/60AE7597/5F8640B0" Ref="#PWR0404"  Part="1" 
AR Path="/60AE80F3/5F8640B0" Ref="#PWR0504"  Part="1" 
AR Path="/5F8640B0" Ref="#PWR0145"  Part="1" 
F 0 "#PWR0304" H 4600 1750 50  0001 C CNN
F 1 "GND" H 4605 1827 50  0000 C CNN
F 2 "" H 4600 2000 50  0001 C CNN
F 3 "" H 4600 2000 50  0001 C CNN
	1    4600 2000
	1    0    0    -1  
$EndComp
$Comp
L Device:C C304
U 1 1 5F862FE2
P 3850 2100
AR Path="/60AA662F/5F862FE2" Ref="C304"  Part="1" 
AR Path="/60AE7597/5F862FE2" Ref="C404"  Part="1" 
AR Path="/60AE80F3/5F862FE2" Ref="C504"  Part="1" 
AR Path="/5F862FE2" Ref="C104"  Part="1" 
F 0 "C304" V 3598 2100 50  0000 C CNN
F 1 "100nF" V 3689 2100 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 3888 1950 50  0001 C CNN
F 3 "~" H 3850 2100 50  0001 C CNN
	1    3850 2100
	0    1    1    0   
$EndComp
$Comp
L power:-15V #PWR0302
U 1 1 5F842347
P 3300 1800
AR Path="/60AA662F/5F842347" Ref="#PWR0302"  Part="1" 
AR Path="/60AE7597/5F842347" Ref="#PWR0402"  Part="1" 
AR Path="/60AE80F3/5F842347" Ref="#PWR0502"  Part="1" 
AR Path="/5F842347" Ref="#PWR0146"  Part="1" 
F 0 "#PWR0302" H 3300 1900 50  0001 C CNN
F 1 "-15V" H 3315 1973 50  0000 C CNN
F 2 "" H 3300 1800 50  0001 C CNN
F 3 "" H 3300 1800 50  0001 C CNN
	1    3300 1800
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0314
U 1 1 5F84E5EB
P 4500 3600
AR Path="/60AA662F/5F84E5EB" Ref="#PWR0314"  Part="1" 
AR Path="/60AE7597/5F84E5EB" Ref="#PWR0414"  Part="1" 
AR Path="/60AE80F3/5F84E5EB" Ref="#PWR0514"  Part="1" 
AR Path="/5F84E5EB" Ref="#PWR0147"  Part="1" 
F 0 "#PWR0314" H 4500 3350 50  0001 C CNN
F 1 "GND" H 4505 3427 50  0000 C CNN
F 2 "" H 4500 3600 50  0001 C CNN
F 3 "" H 4500 3600 50  0001 C CNN
	1    4500 3600
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0324
U 1 1 5F84F240
P 4600 4200
AR Path="/60AA662F/5F84F240" Ref="#PWR0324"  Part="1" 
AR Path="/60AE7597/5F84F240" Ref="#PWR0424"  Part="1" 
AR Path="/60AE80F3/5F84F240" Ref="#PWR0524"  Part="1" 
AR Path="/5F84F240" Ref="#PWR0148"  Part="1" 
F 0 "#PWR0324" H 4600 3950 50  0001 C CNN
F 1 "GND" H 4605 4027 50  0000 C CNN
F 2 "" H 4600 4200 50  0001 C CNN
F 3 "" H 4600 4200 50  0001 C CNN
	1    4600 4200
	1    0    0    -1  
$EndComp
$Comp
L Device:C C315
U 1 1 5F8504A1
P 3850 4000
AR Path="/60AA662F/5F8504A1" Ref="C315"  Part="1" 
AR Path="/60AE7597/5F8504A1" Ref="C415"  Part="1" 
AR Path="/60AE80F3/5F8504A1" Ref="C515"  Part="1" 
AR Path="/5F8504A1" Ref="C115"  Part="1" 
F 0 "C315" V 3598 4000 50  0000 C CNN
F 1 "100nF" V 3689 4000 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 3888 3850 50  0001 C CNN
F 3 "~" H 3850 4000 50  0001 C CNN
	1    3850 4000
	0    -1   1    0   
$EndComp
$Comp
L Device:CP C318
U 1 1 5F8514CB
P 4150 4300
AR Path="/60AA662F/5F8514CB" Ref="C318"  Part="1" 
AR Path="/60AE7597/5F8514CB" Ref="C418"  Part="1" 
AR Path="/60AE80F3/5F8514CB" Ref="C518"  Part="1" 
AR Path="/5F8514CB" Ref="C118"  Part="1" 
F 0 "C318" V 3895 4300 50  0000 C CNN
F 1 "100uF" V 3986 4300 50  0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D6.3mm_P2.50mm" H 4188 4150 50  0001 C CNN
F 3 "~" H 4150 4300 50  0001 C CNN
F 4 "" H 4150 4300 50  0001 C CNN "Model"
	1    4150 4300
	0    -1   1    0   
$EndComp
Wire Wire Line
	3550 4000 3700 4000
Wire Wire Line
	4500 3500 4500 3600
Wire Wire Line
	4250 3500 4500 3500
Wire Wire Line
	3300 3500 3200 3500
Connection ~ 3300 3500
Connection ~ 3300 3200
Wire Wire Line
	3300 3200 3300 3500
Wire Wire Line
	3300 2500 3200 2500
Connection ~ 3300 2500
Connection ~ 3300 2800
Wire Wire Line
	3300 2800 3300 2500
Wire Wire Line
	2900 3200 2900 3150
Wire Wire Line
	3300 3200 2900 3200
Wire Wire Line
	3300 3100 3300 3200
Wire Wire Line
	3350 3100 3300 3100
Wire Wire Line
	3300 2900 3350 2900
Wire Wire Line
	3300 2800 3300 2900
Wire Wire Line
	2900 2800 3300 2800
Wire Wire Line
	2900 2850 2900 2800
Wire Wire Line
	3950 3500 3300 3500
Wire Wire Line
	3950 2500 3300 2500
Wire Wire Line
	4500 2500 4250 2500
Wire Wire Line
	4500 3000 4500 2500
Wire Wire Line
	3950 3000 4500 3000
$Comp
L Device:R R304
U 1 1 5F84960A
P 4100 2500
AR Path="/60AA662F/5F84960A" Ref="R304"  Part="1" 
AR Path="/60AE7597/5F84960A" Ref="R404"  Part="1" 
AR Path="/60AE80F3/5F84960A" Ref="R504"  Part="1" 
AR Path="/5F84960A" Ref="R104"  Part="1" 
F 0 "R304" V 3893 2500 50  0000 C CNN
F 1 "330K 1%" V 3984 2500 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 4030 2500 50  0001 C CNN
F 3 "~" H 4100 2500 50  0001 C CNN
	1    4100 2500
	0    -1   1    0   
$EndComp
$Comp
L power:+15V #PWR0322
U 1 1 5F84163B
P 3300 4000
AR Path="/60AA662F/5F84163B" Ref="#PWR0322"  Part="1" 
AR Path="/60AE7597/5F84163B" Ref="#PWR0422"  Part="1" 
AR Path="/60AE80F3/5F84163B" Ref="#PWR0522"  Part="1" 
AR Path="/5F84163B" Ref="#PWR0149"  Part="1" 
F 0 "#PWR0322" H 3300 3850 50  0001 C CNN
F 1 "+15V" H 3315 4173 50  0000 C CNN
F 2 "" H 3300 4000 50  0001 C CNN
F 3 "" H 3300 4000 50  0001 C CNN
	1    3300 4000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R309
U 1 1 5F83F337
P 2900 3000
AR Path="/60AA662F/5F83F337" Ref="R309"  Part="1" 
AR Path="/60AE7597/5F83F337" Ref="R409"  Part="1" 
AR Path="/60AE80F3/5F83F337" Ref="R509"  Part="1" 
AR Path="/5F83F337" Ref="R109"  Part="1" 
F 0 "R309" H 2970 3046 50  0000 L CNN
F 1 "27K 1%" H 2970 2955 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 2830 3000 50  0001 C CNN
F 3 "~" H 2900 3000 50  0001 C CNN
	1    2900 3000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R315
U 1 1 5F83D91E
P 4100 3500
AR Path="/60AA662F/5F83D91E" Ref="R315"  Part="1" 
AR Path="/60AE7597/5F83D91E" Ref="R415"  Part="1" 
AR Path="/60AE80F3/5F83D91E" Ref="R515"  Part="1" 
AR Path="/5F83D91E" Ref="R115"  Part="1" 
F 0 "R315" V 3893 3500 50  0000 C CNN
F 1 "330K 1%" V 3984 3500 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 4030 3500 50  0001 C CNN
F 3 "~" H 4100 3500 50  0001 C CNN
	1    4100 3500
	0    1    1    0   
$EndComp
$Comp
L Device:R R310
U 1 1 5F83C638
P 6150 3000
AR Path="/60AA662F/5F83C638" Ref="R310"  Part="1" 
AR Path="/60AE7597/5F83C638" Ref="R410"  Part="1" 
AR Path="/60AE80F3/5F83C638" Ref="R510"  Part="1" 
AR Path="/5F83C638" Ref="R110"  Part="1" 
F 0 "R310" V 5943 3000 50  0000 C CNN
F 1 "330R" V 6034 3000 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6080 3000 50  0001 C CNN
F 3 "~" H 6150 3000 50  0001 C CNN
	1    6150 3000
	0    1    1    0   
$EndComp
$Comp
L Device:R R303
U 1 1 5F83A5E0
P 3050 2500
AR Path="/60AA662F/5F83A5E0" Ref="R303"  Part="1" 
AR Path="/60AE7597/5F83A5E0" Ref="R403"  Part="1" 
AR Path="/60AE80F3/5F83A5E0" Ref="R503"  Part="1" 
AR Path="/5F83A5E0" Ref="R103"  Part="1" 
F 0 "R303" V 2843 2500 50  0000 C CNN
F 1 "1K 1%" V 2934 2500 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 2980 2500 50  0001 C CNN
F 3 "~" H 3050 2500 50  0001 C CNN
	1    3050 2500
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR0317
U 1 1 5F830544
P 600 3700
AR Path="/60AA662F/5F830544" Ref="#PWR0317"  Part="1" 
AR Path="/60AE7597/5F830544" Ref="#PWR0417"  Part="1" 
AR Path="/60AE80F3/5F830544" Ref="#PWR0517"  Part="1" 
AR Path="/5F830544" Ref="#PWR0150"  Part="1" 
F 0 "#PWR0317" H 600 3450 50  0001 C CNN
F 1 "GND" H 605 3527 50  0000 C CNN
F 2 "" H 600 3700 50  0001 C CNN
F 3 "" H 600 3700 50  0001 C CNN
	1    600  3700
	1    0    0    -1  
$EndComp
$Comp
L Connector:XLR3_Ground J301
U 1 1 5F81A769
P 900 2900
AR Path="/60AA662F/5F81A769" Ref="J301"  Part="1" 
AR Path="/60AE7597/5F81A769" Ref="J401"  Part="1" 
AR Path="/60AE80F3/5F81A769" Ref="J501"  Part="1" 
AR Path="/5F81A769" Ref="J101"  Part="1" 
F 0 "J301" H 900 3265 50  0000 C CNN
F 1 "Mic X In" H 900 3174 50  0000 C CNN
F 2 "Connector_Audio:Jack_XLR_Neutrik_NC3FAAH2_Horizontal" H 900 2900 50  0001 C CNN
F 3 "https://www.neutrik.com/media/8333/download/nc3faah2-1.pdf" H 900 2900 50  0001 C CNN
F 4 "NC3FAAH2 (Horiz. Male)" H 900 2900 50  0001 C CNN "Model"
	1    900  2900
	1    0    0    -1  
$EndComp
Wire Wire Line
	6650 1100 6400 1100
Wire Wire Line
	6400 1100 6400 1750
Connection ~ 6400 1750
Wire Wire Line
	7050 1000 7300 1000
Wire Wire Line
	7300 1000 7300 1750
Connection ~ 7300 1750
Connection ~ 6800 5900
Text Notes 7350 1100 0    50   ~ 0
Mute/ On-Air:\nClosed = -inf Gain\nMute: NO (un-muted)\nOn-Air: NC (mic muted) / push to activate
Text Notes 6350 6400 1    50   ~ 0
-32 dBu
$Comp
L Comparator:LM339 U305
U 4 1 60B427E4
P 6150 7100
AR Path="/60AA662F/60B427E4" Ref="U305"  Part="4" 
AR Path="/60AE7597/60B427E4" Ref="U405"  Part="4" 
AR Path="/60AE80F3/60B427E4" Ref="U505"  Part="4" 
AR Path="/60B427E4" Ref="U105"  Part="4" 
F 0 "U305" H 6150 7467 50  0000 C CNN
F 1 "LM339" H 6150 7376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 6100 7200 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 6200 7300 50  0001 C CNN
F 4 "+DIP-14 Socket" H 6150 7100 50  0001 C CNN "Model"
	4    6150 7100
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6150 5900 6800 5900
$Comp
L power:GND #PWR0308
U 1 1 61420530
P 8000 2800
AR Path="/60AA662F/61420530" Ref="#PWR0308"  Part="1" 
AR Path="/60AE7597/61420530" Ref="#PWR0408"  Part="1" 
AR Path="/60AE80F3/61420530" Ref="#PWR0508"  Part="1" 
AR Path="/61420530" Ref="#PWR0151"  Part="1" 
F 0 "#PWR0308" H 8000 2550 50  0001 C CNN
F 1 "GND" H 8005 2627 50  0000 C CNN
F 2 "" H 8000 2800 50  0001 C CNN
F 3 "" H 8000 2800 50  0001 C CNN
	1    8000 2800
	1    0    0    -1  
$EndComp
NoConn ~ 7050 1200
Wire Wire Line
	8000 2300 8000 2400
Wire Wire Line
	8000 2700 8000 2800
Text GLabel 7900 1300 0    50   Input ~ 0
V_LED
Wire Wire Line
	7900 1300 8000 1300
Wire Wire Line
	8000 1300 8000 1400
Wire Wire Line
	7900 1800 7900 1900
Wire Wire Line
	7900 1900 8000 1900
Wire Wire Line
	8000 1900 8000 2000
NoConn ~ 8100 1800
Wire Wire Line
	7100 3250 7300 3250
Connection ~ 7300 3250
Text Notes 5500 4450 0    50   ~ 0
Gain Range (Rin @input, R1 + Rpot @feedback):\nGain_min = R1 / Rin (Rpot_min = 0)\nGain_max = (R1+Rpot_max) / Rin\n=> R1 = -(Rpot * Gain_min) / (Gain_min - Gain_max)\n=> R2 = -(Rpot) / (Gain_min - Gain_max) 
$Comp
L power:GND #PWR0354
U 1 1 60EDD4B5
P 7000 11000
AR Path="/60AA662F/60EDD4B5" Ref="#PWR0354"  Part="1" 
AR Path="/60AE7597/60EDD4B5" Ref="#PWR0454"  Part="1" 
AR Path="/60AE80F3/60EDD4B5" Ref="#PWR0554"  Part="1" 
AR Path="/60EDD4B5" Ref="#PWR0154"  Part="1" 
F 0 "#PWR0354" H 7000 10750 50  0001 C CNN
F 1 "GND" H 7005 10827 50  0000 C CNN
F 2 "" H 7000 11000 50  0001 C CNN
F 3 "" H 7000 11000 50  0001 C CNN
	1    7000 11000
	1    0    0    -1  
$EndComp
$Comp
L power:+15V #PWR0353
U 1 1 60EDD4BB
P 7200 10900
AR Path="/60AA662F/60EDD4BB" Ref="#PWR0353"  Part="1" 
AR Path="/60AE7597/60EDD4BB" Ref="#PWR0453"  Part="1" 
AR Path="/60AE80F3/60EDD4BB" Ref="#PWR0553"  Part="1" 
AR Path="/60EDD4BB" Ref="#PWR0153"  Part="1" 
F 0 "#PWR0353" H 7200 10750 50  0001 C CNN
F 1 "+15V" H 7215 11073 50  0000 C CNN
F 2 "" H 7200 10900 50  0001 C CNN
F 3 "" H 7200 10900 50  0001 C CNN
	1    7200 10900
	-1   0    0    1   
$EndComp
$Comp
L power:-15V #PWR0352
U 1 1 60EDD4C1
P 7200 10600
AR Path="/60AA662F/60EDD4C1" Ref="#PWR0352"  Part="1" 
AR Path="/60AE7597/60EDD4C1" Ref="#PWR0452"  Part="1" 
AR Path="/60AE80F3/60EDD4C1" Ref="#PWR0552"  Part="1" 
AR Path="/60EDD4C1" Ref="#PWR0152"  Part="1" 
F 0 "#PWR0352" H 7200 10700 50  0001 C CNN
F 1 "-15V" H 7215 10773 50  0000 C CNN
F 2 "" H 7200 10600 50  0001 C CNN
F 3 "" H 7200 10600 50  0001 C CNN
	1    7200 10600
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 10900 7200 10800
Wire Wire Line
	7000 10900 7000 11000
$Comp
L Connector:Conn_01x04_Male J306
U 1 1 60EDD4C9
P 6500 10800
AR Path="/60AA662F/60EDD4C9" Ref="J306"  Part="1" 
AR Path="/60AE7597/60EDD4C9" Ref="J406"  Part="1" 
AR Path="/60AE80F3/60EDD4C9" Ref="J506"  Part="1" 
AR Path="/60EDD4C9" Ref="J106"  Part="1" 
F 0 "J306" H 6473 10732 50  0000 R CNN
F 1 "PowerSupply" H 6473 10823 50  0000 R CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_PTSM-0,5-4-2.5-H-THR_1x04_P2.50mm_Horizontal" H 6500 10800 50  0001 C CNN
F 3 "" H 6500 10800 50  0001 C CNN
F 4 "PTSM 0,5/ 4-2,5-H THR" H 6500 10800 50  0001 C CNN "Model"
	1    6500 10800
	1    0    0    1   
$EndComp
Text GLabel 7000 10500 1    50   Output ~ 0
V_Phant
Wire Wire Line
	7000 10600 7000 10500
Wire Wire Line
	7200 10700 7200 10600
Wire Wire Line
	6700 10800 7200 10800
Wire Wire Line
	6700 10900 7000 10900
Wire Wire Line
	6700 10600 7000 10600
Wire Wire Line
	6700 10700 7200 10700
Wire Wire Line
	8500 10600 8500 10500
Wire Wire Line
	15450 2850 15450 3650
$Comp
L Connector:AudioJack3_Ground J302
U 1 1 5F821533
P 15750 2950
AR Path="/60AA662F/5F821533" Ref="J302"  Part="1" 
AR Path="/60AE7597/5F821533" Ref="J402"  Part="1" 
AR Path="/60AE80F3/5F821533" Ref="J502"  Part="1" 
AR Path="/5F821533" Ref="J102"  Part="1" 
F 0 "J302" H 15750 3300 50  0000 R CNN
F 1 "Headphone X" H 15950 3200 50  0000 R CNN
F 2 "Connector_Audio:Jack_6.35mm_Neutrik_NMJ6HFD2_Horizontal" H 15750 2950 50  0001 C CNN
F 3 "https://www.rean-connectors.com/media/9014/download/nys-216.pdf?v=1" H 15750 2950 50  0001 C CNN
F 4 "NYS216G (Horiz.)" H 15750 2950 50  0001 C CNN "Model"
	1    15750 2950
	-1   0    0    -1  
$EndComp
NoConn ~ 15750 3250
$Comp
L Mechanical:MountingHole H301
U 1 1 61277394
P 4500 10500
AR Path="/60AA662F/61277394" Ref="H301"  Part="1" 
AR Path="/60AE7597/61277394" Ref="H401"  Part="1" 
AR Path="/60AE80F3/61277394" Ref="H501"  Part="1" 
AR Path="/61277394" Ref="H301"  Part="1" 
F 0 "H301" H 4600 10546 50  0000 L CNN
F 1 "MountingHole" H 4600 10455 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3" H 4500 10500 50  0001 C CNN
F 3 "~" H 4500 10500 50  0001 C CNN
	1    4500 10500
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole H302
U 1 1 612A42CA
P 4500 10750
AR Path="/60AA662F/612A42CA" Ref="H302"  Part="1" 
AR Path="/60AE7597/612A42CA" Ref="H402"  Part="1" 
AR Path="/60AE80F3/612A42CA" Ref="H502"  Part="1" 
AR Path="/612A42CA" Ref="H302"  Part="1" 
F 0 "H302" H 4600 10796 50  0000 L CNN
F 1 "MountingHole" H 4600 10705 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3" H 4500 10750 50  0001 C CNN
F 3 "~" H 4500 10750 50  0001 C CNN
	1    4500 10750
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole H303
U 1 1 613C942A
P 4500 11000
AR Path="/60AA662F/613C942A" Ref="H303"  Part="1" 
AR Path="/60AE7597/613C942A" Ref="H403"  Part="1" 
AR Path="/60AE80F3/613C942A" Ref="H503"  Part="1" 
AR Path="/613C942A" Ref="H303"  Part="1" 
F 0 "H303" H 4600 11046 50  0000 L CNN
F 1 "MountingHole" H 4600 10955 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3" H 4500 11000 50  0001 C CNN
F 3 "~" H 4500 11000 50  0001 C CNN
	1    4500 11000
	1    0    0    -1  
$EndComp
Text HLabel 1200 7150 0    50   Input ~ 0
PreampOut
$Comp
L Connector:Conn_01x03_Male J308
U 1 1 60E30DA1
P 1900 10400
AR Path="/60AA662F/60E30DA1" Ref="J308"  Part="1" 
AR Path="/60AE7597/60E30DA1" Ref="J408"  Part="1" 
AR Path="/60AE80F3/60E30DA1" Ref="J508"  Part="1" 
AR Path="/60E30DA1" Ref="J108"  Part="1" 
F 0 "J308" H 2008 10075 50  0000 C CNN
F 1 "Interconnect" H 2008 10166 50  0000 C CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_PTSM-0,5-3-2.5-H-THR_1x03_P2.50mm_Horizontal" H 1900 10400 50  0001 C CNN
F 3 "" H 1900 10400 50  0001 C CNN
F 4 "PTSM 0,5/ 3-2,5-H THR" H 1900 10400 50  0001 C CNN "Model"
	1    1900 10400
	1    0    0    1   
$EndComp
$Comp
L Connector:Conn_01x03_Female J307
U 1 1 60E33C38
P 1500 10400
AR Path="/60AA662F/60E33C38" Ref="J307"  Part="1" 
AR Path="/60AE7597/60E33C38" Ref="J407"  Part="1" 
AR Path="/60AE80F3/60E33C38" Ref="J507"  Part="1" 
AR Path="/60E33C38" Ref="J107"  Part="1" 
F 0 "J307" H 1392 10075 50  0000 C CNN
F 1 "Interconnect" H 1392 10166 50  0000 C CNN
F 2 "TerminalBlock_Phoenix:TerminalBlock_Phoenix_PTSM-0,5-3-2.5-H-THR_1x03_P2.50mm_Horizontal" H 1500 10400 50  0001 C CNN
F 3 "" H 1500 10400 50  0001 C CNN
F 4 "PTSM 0,5/ 3-2,5-H THR" H 1500 10400 50  0001 C CNN "Model"
	1    1500 10400
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR0355
U 1 1 60EEBE7C
P 2200 10600
AR Path="/60AA662F/60EEBE7C" Ref="#PWR0355"  Part="1" 
AR Path="/60AE7597/60EEBE7C" Ref="#PWR0455"  Part="1" 
AR Path="/60AE80F3/60EEBE7C" Ref="#PWR0555"  Part="1" 
AR Path="/60EEBE7C" Ref="#PWR0125"  Part="1" 
F 0 "#PWR0355" H 2200 10350 50  0001 C CNN
F 1 "GND" H 2205 10427 50  0000 C CNN
F 2 "" H 2200 10600 50  0001 C CNN
F 3 "" H 2200 10600 50  0001 C CNN
	1    2200 10600
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0316
U 1 1 60EECF6B
P 1200 10600
AR Path="/60AA662F/60EECF6B" Ref="#PWR0316"  Part="1" 
AR Path="/60AE7597/60EECF6B" Ref="#PWR0416"  Part="1" 
AR Path="/60AE80F3/60EECF6B" Ref="#PWR0516"  Part="1" 
AR Path="/60EECF6B" Ref="#PWR0155"  Part="1" 
F 0 "#PWR0316" H 1200 10350 50  0001 C CNN
F 1 "GND" H 1205 10427 50  0000 C CNN
F 2 "" H 1200 10600 50  0001 C CNN
F 3 "" H 1200 10600 50  0001 C CNN
	1    1200 10600
	1    0    0    -1  
$EndComp
Text GLabel 5450 3100 3    50   Output ~ 0
MicPreOut
Text GLabel 5750 3100 3    50   Input ~ 0
MicGainIn
Wire Wire Line
	5000 3000 5450 3000
Wire Wire Line
	5450 3000 5450 3100
Connection ~ 5000 3000
Wire Wire Line
	5750 3100 5750 3000
Wire Wire Line
	5750 3000 6000 3000
Text GLabel 1100 10300 0    50   Input ~ 0
MicPreOut
Text GLabel 2300 10300 2    50   Output ~ 0
MicGainIn
Text GLabel 1100 10400 0    50   Output ~ 0
AmpIn
Text GLabel 12850 2800 1    50   Input ~ 0
AmpIn
Text GLabel 12550 2800 1    50   Output ~ 0
SumOut
Connection ~ 8700 3000
Wire Wire Line
	8700 3000 9300 3000
Wire Wire Line
	12550 2800 12550 3000
Wire Wire Line
	12850 2800 12850 3100
Text GLabel 2300 10400 2    50   Input ~ 0
SumOut
Wire Wire Line
	2100 10500 2200 10500
Wire Wire Line
	2200 10500 2200 10600
Wire Wire Line
	2100 10400 2300 10400
Wire Wire Line
	2100 10300 2300 10300
Wire Wire Line
	1100 10300 1300 10300
Wire Wire Line
	1100 10400 1300 10400
Wire Wire Line
	1300 10500 1200 10500
Wire Wire Line
	1200 10500 1200 10600
$Comp
L Mechanical:MountingHole H305
U 1 1 60C57BF3
P 3400 10500
AR Path="/60AA662F/60C57BF3" Ref="H305"  Part="1" 
AR Path="/60AE7597/60C57BF3" Ref="H405"  Part="1" 
AR Path="/60AE80F3/60C57BF3" Ref="H505"  Part="1" 
AR Path="/60C57BF3" Ref="H305"  Part="1" 
F 0 "H305" H 3500 10546 50  0000 L CNN
F 1 "MountingHole" H 3500 10455 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3" H 3400 10500 50  0001 C CNN
F 3 "~" H 3400 10500 50  0001 C CNN
	1    3400 10500
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole H306
U 1 1 60C57E93
P 3400 10750
AR Path="/60AA662F/60C57E93" Ref="H306"  Part="1" 
AR Path="/60AE7597/60C57E93" Ref="H406"  Part="1" 
AR Path="/60AE80F3/60C57E93" Ref="H506"  Part="1" 
AR Path="/60C57E93" Ref="H306"  Part="1" 
F 0 "H306" H 3500 10796 50  0000 L CNN
F 1 "MountingHole" H 3500 10705 50  0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3" H 3400 10750 50  0001 C CNN
F 3 "~" H 3400 10750 50  0001 C CNN
	1    3400 10750
	1    0    0    -1  
$EndComp
Text Notes 11800 9900 0    58   ~ 12
PCB Errata:\n- R302 (R102 on PCB) has pins 1 and 3 swapped. Connect R305 (R105) directly to the left\n   potentiometer pin!\n- The ground plane at the headphone mix potentiometers is not connected to the remaining\n   ground plane/ power input. Place a jumper manually!
Text Notes 4650 3750 0    50   ~ 0
DNP R312 and\nreplace C309 with\na jumper!
Text Notes 8000 10200 0    50   ~ 0
Bridge V_LED to +15V\n(5V V_LED didn’t work)
$EndSCHEMATC