EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:switches
LIBS:relays
LIBS:motors
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:WeaselFuzz-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L GND #PWR01
U 1 1 5A88066F
P 7200 5450
F 0 "#PWR01" H 7200 5200 50  0001 C CNN
F 1 "GND" H 7200 5300 50  0000 C CNN
F 2 "" H 7200 5450 50  0001 C CNN
F 3 "" H 7200 5450 50  0001 C CNN
	1    7200 5450
	0    1    1    0   
$EndComp
$Comp
L POT 100Ka1
U 1 1 5A880720
P 7700 5200
F 0 "100Ka1" V 7525 5200 50  0000 C CNN
F 1 "PRE" V 7600 5200 50  0000 C CNN
F 2 "Potentiometers:Potentiometer_Alps_RK09K_Horizontal" H 7700 5200 50  0001 C CNN
F 3 "" H 7700 5200 50  0001 C CNN
	1    7700 5200
	1    0    0    -1  
$EndComp
$Comp
L R R8
U 1 1 5A880832
P 7450 5450
F 0 "R8" V 7530 5450 50  0000 C CNN
F 1 "1K" V 7450 5450 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 7380 5450 50  0001 C CNN
F 3 "" H 7450 5450 50  0001 C CNN
	1    7450 5450
	0    1    1    0   
$EndComp
$Comp
L R R7
U 1 1 5A8808EC
P 8100 5200
F 0 "R7" V 8180 5200 50  0000 C CNN
F 1 "10K" V 8100 5200 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 8030 5200 50  0001 C CNN
F 3 "" H 8100 5200 50  0001 C CNN
	1    8100 5200
	0    1    1    0   
$EndComp
$Comp
L CP1 C2
U 1 1 5A880A8B
P 8500 5200
F 0 "C2" H 8525 5300 50  0000 L CNN
F 1 "2.2" H 8525 5100 50  0000 L CNN
F 2 "Capacitors_SMD:C_1206_HandSoldering" H 8500 5200 50  0001 C CNN
F 3 "" H 8500 5200 50  0001 C CNN
	1    8500 5200
	0    -1   -1   0   
$EndComp
$Comp
L Q_PNP_CBE Q1
U 1 1 5A880B3E
P 9050 5200
F 0 "Q1" H 9250 5250 50  0000 L CNN
F 1 "EFT83C" H 9250 5150 50  0000 L CNN
F 2 "TO_SOT_Packages_THT:TO-5-3" H 9250 5300 50  0001 C CNN
F 3 "" H 9050 5200 50  0001 C CNN
	1    9050 5200
	1    0    0    1   
$EndComp
$Comp
L GND #PWR02
U 1 1 5A880B96
P 9150 5500
F 0 "#PWR02" H 9150 5250 50  0001 C CNN
F 1 "GND" H 9150 5350 50  0000 C CNN
F 2 "" H 9150 5500 50  0001 C CNN
F 3 "" H 9150 5500 50  0001 C CNN
	1    9150 5500
	1    0    0    -1  
$EndComp
$Comp
L R R9
U 1 1 5A880BCC
P 9000 5800
F 0 "R9" V 9080 5800 50  0000 C CNN
F 1 "100k" V 9000 5800 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 8930 5800 50  0001 C CNN
F 3 "" H 9000 5800 50  0001 C CNN
	1    9000 5800
	0    1    1    0   
$EndComp
$Comp
L POT FUZZ1
U 1 1 5A880D07
P 9250 6050
F 0 "FUZZ1" V 9075 6050 50  0000 C CNN
F 1 "C1k" V 9150 6050 50  0000 C CNN
F 2 "Potentiometers:Potentiometer_Alps_RK09K_Horizontal" H 9250 6050 50  0001 C CNN
F 3 "" H 9250 6050 50  0001 C CNN
	1    9250 6050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR03
U 1 1 5A880D48
P 9250 6300
F 0 "#PWR03" H 9250 6050 50  0001 C CNN
F 1 "GND" H 9250 6150 50  0000 C CNN
F 2 "" H 9250 6300 50  0001 C CNN
F 3 "" H 9250 6300 50  0001 C CNN
	1    9250 6300
	1    0    0    -1  
$EndComp
$Comp
L CP1 C3
U 1 1 5A880DF8
P 9650 6050
F 0 "C3" H 9675 6150 50  0000 L CNN
F 1 "22u" H 9675 5950 50  0000 L CNN
F 2 "Capacitors_SMD:CP_Elec_5x5.8" H 9650 6050 50  0001 C CNN
F 3 "" H 9650 6050 50  0001 C CNN
	1    9650 6050
	0    1    1    0   
$EndComp
$Comp
L Q_PNP_CBE Q2
U 1 1 5A880EDD
P 9550 5500
F 0 "Q2" H 9750 5550 50  0000 L CNN
F 1 "AC122" H 9750 5450 50  0000 L CNN
F 2 "TO_SOT_Packages_THT:TO-5-3" H 9750 5600 50  0001 C CNN
F 3 "" H 9550 5500 50  0001 C CNN
	1    9550 5500
	1    0    0    1   
$EndComp
$Comp
L POT BIAS1
U 1 1 5A881672
P 9650 4950
F 0 "BIAS1" V 9475 4950 50  0000 C CNN
F 1 "c100K" V 9550 4950 50  0000 C CNN
F 2 "Potentiometers:Potentiometer_Alps_RK09K_Horizontal" H 9650 4950 50  0001 C CNN
F 3 "" H 9650 4950 50  0001 C CNN
	1    9650 4950
	-1   0    0    1   
$EndComp
$Comp
L R 22K1
U 1 1 5A8816D5
P 9950 4950
F 0 "22K1" V 10030 4950 50  0000 C CNN
F 1 "22k" V 9950 4950 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 9880 4950 50  0001 C CNN
F 3 "" H 9950 4950 50  0001 C CNN
	1    9950 4950
	1    0    0    -1  
$EndComp
$Comp
L R R6
U 1 1 5A881882
P 9150 4650
F 0 "R6" V 9230 4650 50  0000 C CNN
F 1 "33K" V 9150 4650 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 9080 4650 50  0001 C CNN
F 3 "" H 9150 4650 50  0001 C CNN
	1    9150 4650
	1    0    0    -1  
$EndComp
$Comp
L R R4
U 1 1 5A8818BD
P 9400 4400
F 0 "R4" V 9480 4400 50  0000 C CNN
F 1 "1.5" V 9400 4400 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 9330 4400 50  0001 C CNN
F 3 "" H 9400 4400 50  0001 C CNN
	1    9400 4400
	0    1    1    0   
$EndComp
Wire Wire Line
	7450 4950 7700 4950
Wire Wire Line
	7700 4950 7700 5050
Wire Wire Line
	7700 5350 7700 5450
Wire Wire Line
	7700 5450 7600 5450
Wire Wire Line
	7850 5200 7950 5200
Wire Wire Line
	8250 5200 8350 5200
Wire Wire Line
	9150 5500 9150 5400
Wire Wire Line
	8650 5200 8850 5200
Wire Wire Line
	8750 5200 8750 5800
Wire Wire Line
	8750 5800 8850 5800
Connection ~ 8750 5200
Wire Wire Line
	9800 6050 9900 6050
Wire Wire Line
	9900 6050 9900 6300
Wire Wire Line
	9900 6300 9250 6300
Wire Wire Line
	9250 6300 9250 6200
Wire Wire Line
	9400 6050 9500 6050
Wire Wire Line
	9150 5800 9650 5800
Wire Wire Line
	9250 5800 9250 5900
Wire Wire Line
	9250 4900 9150 4900
Wire Wire Line
	9150 4800 9150 5000
Wire Wire Line
	9650 5800 9650 5700
Connection ~ 9250 5800
Wire Wire Line
	9350 5500 9250 5500
Connection ~ 9250 5500
Wire Wire Line
	9250 5500 9250 4900
Wire Wire Line
	9500 4950 9400 4950
Wire Wire Line
	9400 4950 9400 4700
Wire Wire Line
	9400 4700 9950 4700
Wire Wire Line
	9650 4700 9650 4800
Wire Wire Line
	9950 4700 9950 4800
Connection ~ 9650 4700
Wire Wire Line
	9950 5100 9950 5200
Wire Wire Line
	9950 5200 9650 5200
Wire Wire Line
	9650 5100 9650 5300
Connection ~ 9650 5200
Connection ~ 9150 4900
Wire Wire Line
	9150 4400 9150 4500
Wire Wire Line
	8550 4400 9250 4400
Wire Wire Line
	9550 4400 9850 4400
Wire Wire Line
	9750 4400 9750 4700
Connection ~ 9750 4700
$Comp
L CP1 C1
U 1 1 5A881AD2
P 10000 4400
F 0 "C1" H 10025 4500 50  0000 L CNN
F 1 "0.01" H 10025 4300 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 10000 4400 50  0001 C CNN
F 3 "" H 10000 4400 50  0001 C CNN
	1    10000 4400
	0    -1   -1   0   
$EndComp
Connection ~ 9750 4400
$Comp
L POT LEVEL1
U 1 1 5A881B8F
P 10400 4400
F 0 "LEVEL1" V 10225 4400 50  0000 C CNN
F 1 "500ka" V 10300 4400 50  0000 C CNN
F 2 "Potentiometers:Potentiometer_Alps_RK09K_Horizontal" H 10400 4400 50  0001 C CNN
F 3 "" H 10400 4400 50  0001 C CNN
	1    10400 4400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	10150 4400 10250 4400
$Comp
L GND #PWR04
U 1 1 5A881DA6
P 10650 4400
F 0 "#PWR04" H 10650 4150 50  0001 C CNN
F 1 "GND" H 10650 4250 50  0000 C CNN
F 2 "" H 10650 4400 50  0001 C CNN
F 3 "" H 10650 4400 50  0001 C CNN
	1    10650 4400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	10550 4400 10650 4400
$Comp
L C C5
U 1 1 5A88223B
P 8900 4650
F 0 "C5" H 8925 4750 50  0000 L CNN
F 1 "100n" H 8925 4550 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 8938 4500 50  0001 C CNN
F 3 "" H 8900 4650 50  0001 C CNN
	1    8900 4650
	1    0    0    -1  
$EndComp
$Comp
L CP1 C4
U 1 1 5A882298
P 8650 4650
F 0 "C4" H 8675 4750 50  0000 L CNN
F 1 "100u" H 8675 4550 50  0000 L CNN
F 2 "Capacitors_SMD:CP_Elec_6.3x7.7" H 8650 4650 50  0001 C CNN
F 3 "" H 8650 4650 50  0001 C CNN
	1    8650 4650
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR05
U 1 1 5A882347
P 8900 4850
F 0 "#PWR05" H 8900 4600 50  0001 C CNN
F 1 "GND" H 8900 4700 50  0000 C CNN
F 2 "" H 8900 4850 50  0001 C CNN
F 3 "" H 8900 4850 50  0001 C CNN
	1    8900 4850
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR06
U 1 1 5A882381
P 8650 4850
F 0 "#PWR06" H 8650 4600 50  0001 C CNN
F 1 "GND" H 8650 4700 50  0000 C CNN
F 2 "" H 8650 4850 50  0001 C CNN
F 3 "" H 8650 4850 50  0001 C CNN
	1    8650 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	8650 4800 8650 4850
Wire Wire Line
	8900 4800 8900 4850
Wire Wire Line
	8900 4400 8900 4500
Connection ~ 9150 4400
Wire Wire Line
	8650 4400 8650 4500
Connection ~ 8900 4400
$Comp
L R R2
U 1 1 5A882500
P 8400 4400
F 0 "R2" V 8480 4400 50  0000 C CNN
F 1 "100" V 8400 4400 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 8330 4400 50  0001 C CNN
F 3 "" H 8400 4400 50  0001 C CNN
	1    8400 4400
	0    1    1    0   
$EndComp
Connection ~ 8650 4400
$Comp
L D_Zener D1
U 1 1 5A88263C
P 7900 4400
F 0 "D1" H 7900 4500 50  0000 C CNN
F 1 "1N5817" H 7900 4300 50  0000 C CNN
F 2 "Diodes_THT:D_DO-41_SOD81_P7.62mm_Horizontal" H 7900 4400 50  0001 C CNN
F 3 "" H 7900 4400 50  0001 C CNN
	1    7900 4400
	1    0    0    -1  
$EndComp
$Comp
L R R1
U 1 1 5A882683
P 8150 4150
F 0 "R1" V 8230 4150 50  0000 C CNN
F 1 "4.7" V 8150 4150 50  0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 8080 4150 50  0001 C CNN
F 3 "" H 8150 4150 50  0001 C CNN
	1    8150 4150
	1    0    0    -1  
$EndComp
Wire Wire Line
	8150 4300 8150 4400
Wire Wire Line
	8050 4400 8250 4400
Connection ~ 8150 4400
$Comp
L Conn_01x01 LED-1
U 1 1 5A894578
P 8150 3700
F 0 "LED-1" H 8150 3800 50  0000 C CNN
F 1 "LED-" H 8150 3600 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_single_1mmDrill" H 8150 3700 50  0001 C CNN
F 3 "" H 8150 3700 50  0001 C CNN
	1    8150 3700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	8150 3900 8150 4000
$Comp
L VCC #PWR07
U 1 1 5A894744
P 7650 4300
F 0 "#PWR07" H 7650 4150 50  0001 C CNN
F 1 "VCC" H 7650 4450 50  0000 C CNN
F 2 "" H 7650 4300 50  0001 C CNN
F 3 "" H 7650 4300 50  0001 C CNN
	1    7650 4300
	1    0    0    -1  
$EndComp
$Comp
L Conn_01x01 VCC1
U 1 1 5A894827
P 7350 4400
F 0 "VCC1" H 7350 4500 50  0000 C CNN
F 1 "-9V" H 7350 4300 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_single_1mmDrill" H 7350 4400 50  0001 C CNN
F 3 "" H 7350 4400 50  0001 C CNN
	1    7350 4400
	-1   0    0    1   
$EndComp
Wire Wire Line
	7550 4400 7750 4400
Wire Wire Line
	7650 4400 7650 4300
Connection ~ 7650 4400
$Comp
L Conn_01x01 LED+1
U 1 1 5A89561E
P 7800 5650
F 0 "LED+1" H 7800 5750 50  0000 C CNN
F 1 "LED+" H 7800 5550 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_single_1mmDrill" H 7800 5650 50  0001 C CNN
F 3 "" H 7800 5650 50  0001 C CNN
	1    7800 5650
	-1   0    0    1   
$EndComp
$Comp
L Conn_01x01 GND1
U 1 1 5A89569B
P 8400 5750
F 0 "GND1" H 8400 5850 50  0000 C CNN
F 1 "GND" H 8400 5650 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_single_1mmDrill" H 8400 5750 50  0001 C CNN
F 3 "" H 8400 5750 50  0001 C CNN
	1    8400 5750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR08
U 1 1 5A895714
P 8100 5850
F 0 "#PWR08" H 8100 5600 50  0001 C CNN
F 1 "GND" H 8100 5700 50  0000 C CNN
F 2 "" H 8100 5850 50  0001 C CNN
F 3 "" H 8100 5850 50  0001 C CNN
	1    8100 5850
	1    0    0    -1  
$EndComp
Wire Wire Line
	8000 5650 8100 5650
Wire Wire Line
	8100 5650 8100 5850
Wire Wire Line
	8200 5750 8100 5750
Connection ~ 8100 5750
Wire Wire Line
	10400 3950 10400 4250
$Comp
L Conn_01x01 Q2Bias1
U 1 1 5A901C60
P 10150 5200
F 0 "Q2Bias1" H 10150 5300 50  0000 C CNN
F 1 "Q2Bias" H 10150 5100 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_single_1mmDrill" H 10150 5200 50  0001 C CNN
F 3 "" H 10150 5200 50  0001 C CNN
	1    10150 5200
	1    0    0    -1  
$EndComp
$Comp
L Conn_01x01 Input1
U 1 1 5A908B76
P 7250 4950
F 0 "Input1" H 7250 5050 50  0000 C CNN
F 1 "I" H 7250 4850 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_single_1mmDrill" H 7250 4950 50  0001 C CNN
F 3 "" H 7250 4950 50  0001 C CNN
	1    7250 4950
	-1   0    0    1   
$EndComp
Wire Wire Line
	7200 5450 7300 5450
$Comp
L Conn_01x01 Output1
U 1 1 5A909ACF
P 10400 3750
F 0 "Output1" H 10400 3850 50  0000 C CNN
F 1 "O" H 10400 3600 50  0000 C CNN
F 2 "Wire_Pads:SolderWirePad_2x_1mmDrill" H 10400 3750 50  0001 C CNN
F 3 "" H 10400 3750 50  0001 C CNN
	1    10400 3750
	0    -1   -1   0   
$EndComp
$EndSCHEMATC