<?xml version="1.0" encoding="UTF-8"?>
<export version="D">
  <design>
    <source>/home/rsholmes/Documents/Hobbies/Music/Instruments/Synths/Kassutronics/Precision ADSR/PrecADSRmod/Hardware/PCB/precadsr/precadsr.sch</source>
    <date>Thu 22 Apr 2021 10:22:18 AM EDT</date>
    <tool>Eeschema 5.1.9-73d0e3b20d~88~ubuntu20.04.1</tool>
    <sheet number="1" name="/" tstamps="/">
      <title_block>
        <title>Precision ADSR with mods</title>
        <company>Kassutronics, mods by Rich Holmes/Analog Output</company>
        <rev/>
        <date>2021-04-17</date>
        <source>precadsr.sch</source>
        <comment number="1" value="https://kassu2000.blogspot.com/2015/05/precision-adsr.html"/>
        <comment number="2" value=""/>
        <comment number="3" value=""/>
        <comment number="4" value=""/>
      </title_block>
    </sheet>
    <sheet number="2" name="/Pots, switches, misc/" tstamps="/607ED812/">
      <title_block>
        <title>Precision ADSR with mods</title>
        <company>Kassutronics, mods by Rich Holmes/Analog Output</company>
        <rev/>
        <date>2021-04-17</date>
        <source>potsetc.sch</source>
        <comment number="1" value="https://kassu2000.blogspot.com/2015/05/precision-adsr.html"/>
        <comment number="2" value=""/>
        <comment number="3" value=""/>
        <comment number="4" value=""/>
      </title_block>
    </sheet>
  </design>
  <components>
    <comp ref="D6">
      <value>1N5817</value>
      <footprint>ao_tht:D_DO-41_SOD81_P7.62mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-159</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="D_Schottky" description="Schottky diode"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>5F73FA24</tstamp>
    </comp>
    <comp ref="C5">
      <value>10 uF</value>
      <footprint>ao_tht:CP_Radial_D6.3mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-4349</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="CP" description="Polarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>5F73FA30</tstamp>
    </comp>
    <comp ref="C6">
      <value>100 nF</value>
      <footprint>ao_tht:C_Disc_D3.0mm_W1.6mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-553</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>5F73FA42</tstamp>
    </comp>
    <comp ref="J2">
      <value>Synth_power_2x5</value>
      <footprint>ao_tht:Power_Header</footprint>
      <fields>
        <field name="SKU">A-2939</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="ao_symbols" part="Synth_power_2x5" description="2x5 pin shrouded header 2.54 mm spacing"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6074DF58</tstamp>
    </comp>
    <comp ref="R2">
      <value>1M</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607B9B65</tstamp>
    </comp>
    <comp ref="D1">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607BA32B</tstamp>
    </comp>
    <comp ref="R3">
      <value>47k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607BB4ED</tstamp>
    </comp>
    <comp ref="Q2">
      <value>2N3904</value>
      <footprint>ao_tht:TO-92_Inline_Wide</footprint>
      <datasheet>https://www.onsemi.com/pub/Collateral/2N3903-D.PDF</datasheet>
      <libsource lib="Transistor_BJT" part="2N3904" description="0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607BDC69</tstamp>
    </comp>
    <comp ref="R4">
      <value>22k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607BECCA</tstamp>
    </comp>
    <comp ref="C1">
      <value>1 nF</value>
      <footprint>ao_tht:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607BF55B</tstamp>
    </comp>
    <comp ref="Q3">
      <value>2N3904</value>
      <footprint>ao_tht:TO-92_Inline_Wide</footprint>
      <datasheet>https://www.onsemi.com/pub/Collateral/2N3903-D.PDF</datasheet>
      <libsource lib="Transistor_BJT" part="2N3904" description="0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607C3EBC</tstamp>
    </comp>
    <comp ref="R7">
      <value>22k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607C3EC2</tstamp>
    </comp>
    <comp ref="U1">
      <value>ICM7555xP</value>
      <footprint>Package_DIP:DIP-8_W7.62mm</footprint>
      <datasheet>http://www.intersil.com/content/dam/Intersil/documents/icm7/icm7555-56.pdf</datasheet>
      <libsource lib="Timer" part="ICM7555xP" description="CMOS General Purpose Timer, 555 compatible, PDIP-8"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607DD01C</tstamp>
    </comp>
    <comp ref="D2">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607ED66B</tstamp>
    </comp>
    <comp ref="R15">
      <value>10k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608118BD</tstamp>
    </comp>
    <comp ref="C4">
      <value>10 uF</value>
      <footprint>ao_tht:CP_Radial_D6.3mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-4349</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="CP" description="Polarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6074E7B5</tstamp>
    </comp>
    <comp ref="D7">
      <value>1N5817</value>
      <footprint>ao_tht:D_DO-41_SOD81_P7.62mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-159</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="D_Schottky" description="Schottky diode"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6074E3B2</tstamp>
    </comp>
    <comp ref="R1">
      <value>1M</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607D9F9B</tstamp>
    </comp>
    <comp ref="R21">
      <value>47k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607DECF0</tstamp>
    </comp>
    <comp ref="R20">
      <value>10k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607DF413</tstamp>
    </comp>
    <comp ref="R5">
      <value>10R</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6080708A</tstamp>
    </comp>
    <comp ref="U2">
      <value>TL074</value>
      <footprint>ao_tht:DIP-14_W7.62mm_Socket_LongPads</footprint>
      <datasheet>http://www.ti.com/lit/ds/symlink/tl071.pdf</datasheet>
      <libsource lib="Amplifier_Operational" part="TL074" description="Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60810D04</tstamp>
    </comp>
    <comp ref="C7">
      <value>100 nF</value>
      <footprint>ao_tht:C_Disc_D3.0mm_W1.6mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-553</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60825D35</tstamp>
    </comp>
    <comp ref="D4">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6082B445</tstamp>
    </comp>
    <comp ref="D3">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608695B4</tstamp>
    </comp>
    <comp ref="R17">
      <value>4.7k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608D622C</tstamp>
    </comp>
    <comp ref="D5">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6090A5D1</tstamp>
    </comp>
    <comp ref="R19">
      <value>4.7k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6090B8DB</tstamp>
    </comp>
    <comp ref="C8">
      <value>100 nF</value>
      <footprint>ao_tht:C_Disc_D3.0mm_W1.6mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-553</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6093DF96</tstamp>
    </comp>
    <comp ref="C2">
      <value>10 nF</value>
      <footprint>ao_tht:C_Disc_D3.0mm_W1.6mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607E48CC</tstamp>
    </comp>
    <comp ref="L1">
      <value>LED</value>
      <footprint>ao_tht:LED_D5.0mm</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="LED" description="Light emitting diode"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608AB65B</tstamp>
    </comp>
    <comp ref="R16">
      <value>1k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608B6A60</tstamp>
    </comp>
    <comp ref="R23">
      <value>100k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608DB7C1</tstamp>
    </comp>
    <comp ref="C11">
      <value>1 nF</value>
      <footprint>ao_tht:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608F2B4A</tstamp>
    </comp>
    <comp ref="D8">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608FE06A</tstamp>
    </comp>
    <comp ref="R6">
      <value>22k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60937316</tstamp>
    </comp>
    <comp ref="D10">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>609412D3</tstamp>
    </comp>
    <comp ref="R24">
      <value>100k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>609412E3</tstamp>
    </comp>
    <comp ref="U3">
      <value>LM358</value>
      <footprint>ao_tht:DIP-8_W7.62mm_Socket_LongPads</footprint>
      <datasheet>http://www.ti.com/lit/ds/symlink/lm2904-n.pdf</datasheet>
      <libsource lib="Amplifier_Operational" part="LM358" description="Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>609CF77B</tstamp>
    </comp>
    <comp ref="C9">
      <value>100 nF</value>
      <footprint>ao_tht:C_Disc_D3.0mm_W1.6mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-553</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>609EBD75</tstamp>
    </comp>
    <comp ref="R26">
      <value>1k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60A3E58D</tstamp>
    </comp>
    <comp ref="R25">
      <value>100k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60A3EE3A</tstamp>
    </comp>
    <comp ref="R22">
      <value>10k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60B9700E</tstamp>
    </comp>
    <comp ref="J1">
      <value>AudioJack2_SwitchT</value>
      <footprint>ao_tht:Jack_6.35mm_PJ_629HAN</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector" part="AudioJack2_SwitchT" description="Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling)"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60BB84E7</tstamp>
    </comp>
    <comp ref="J5">
      <value>AudioJack2</value>
      <footprint>ao_tht:Jack_6.35mm_PJ_629HAN</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector" part="AudioJack2" description="Audio Jack, 2 Poles (Mono / TS)"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60C24DAC</tstamp>
    </comp>
    <comp ref="J13">
      <value>AudioJack2</value>
      <footprint>ao_tht:Jack_6.35mm_PJ_629HAN</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector" part="AudioJack2" description="Audio Jack, 2 Poles (Mono / TS)"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60C60E56</tstamp>
    </comp>
    <comp ref="J12">
      <value>AudioJack2</value>
      <footprint>ao_tht:Jack_6.35mm_PJ_629HAN</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector" part="AudioJack2" description="Audio Jack, 2 Poles (Mono / TS)"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60C6E59B</tstamp>
    </comp>
    <comp ref="R18">
      <value>1k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6086C995</tstamp>
    </comp>
    <comp ref="Q1">
      <value>2N3904</value>
      <footprint>ao_tht:TO-92_Inline_Wide</footprint>
      <datasheet>https://www.onsemi.com/pub/Collateral/2N3903-D.PDF</datasheet>
      <libsource lib="Transistor_BJT" part="2N3904" description="0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>607BC569</tstamp>
    </comp>
    <comp ref="J6">
      <value>Conn_01x04</value>
      <footprint>Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector_Generic" part="Conn_01x04" description="Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60AE248C</tstamp>
    </comp>
    <comp ref="J3">
      <value>2_pin_Molex_header</value>
      <footprint>ao_tht:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-804</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="ao_symbols" part="2_pin_Molex_header" description="2 pin Molex header 2.54 mm spacing"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60B13DB2</tstamp>
    </comp>
    <comp ref="J4">
      <value>Conn_01x10</value>
      <footprint>Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector_Generic" part="Conn_01x10" description="Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/)"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60AA7F73</tstamp>
    </comp>
    <comp ref="C3">
      <value>10 uF</value>
      <footprint>ao_tht:CP_Radial_D6.3mm_P2.50mm</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-4349</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Device" part="CP" description="Polarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60996580</tstamp>
    </comp>
    <comp ref="C10">
      <value>1 uF</value>
      <footprint>ao_tht:C_Rect_L7.2mm_W7.2mm_P5.00mm_FKS2_FKP2_MKS2_MKP2</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6096366E</tstamp>
    </comp>
    <comp ref="C12">
      <value>1 nF</value>
      <footprint>ao_tht:C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="C" description="Unpolarized capacitor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>6085235D</tstamp>
    </comp>
    <comp ref="D9">
      <value>1N4148</value>
      <footprint>ao_tht:D_DO-35_SOD27_P7.62mm_Horizontal</footprint>
      <datasheet>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</datasheet>
      <libsource lib="Diode" part="1N4148" description="100V 0.15A standard switching diode, DO-35"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>60852363</tstamp>
    </comp>
    <comp ref="R27">
      <value>100k</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/" tstamps="/"/>
      <tstamp>608B26BB</tstamp>
    </comp>
    <comp ref="R109">
      <value>A1M</value>
      <footprint>ao_tht:Potentiometer_Alpha_16mm_Single_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>607F01E7</tstamp>
    </comp>
    <comp ref="R113">
      <value>A1M</value>
      <footprint>ao_tht:Potentiometer_Alpha_16mm_Single_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60800A40</tstamp>
    </comp>
    <comp ref="S3">
      <value>SW_SPDT</value>
      <footprint>ao_tht:SPDT-toggle-switch-1M-series</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Switch" part="SW_SPDT" description="Switch, single pole double throw"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>6091D1B4</tstamp>
    </comp>
    <comp ref="R9">
      <value>A1M</value>
      <footprint>ao_tht:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles_centered</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60A9C096</tstamp>
    </comp>
    <comp ref="R13">
      <value>A1M</value>
      <footprint>ao_tht:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles_centered</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60A9C081</tstamp>
    </comp>
    <comp ref="R111">
      <value>A1M</value>
      <footprint>ao_tht:Potentiometer_Alpha_16mm_Single_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60802B98</tstamp>
    </comp>
    <comp ref="R11">
      <value>A1M</value>
      <footprint>ao_tht:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles_centered</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60A9C0A9</tstamp>
    </comp>
    <comp ref="R8">
      <value>100R</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60C3833D</tstamp>
    </comp>
    <comp ref="R12">
      <value>100R</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60C38343</tstamp>
    </comp>
    <comp ref="R10">
      <value>100R</value>
      <footprint>ao_tht:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R" description="Resistor"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60C38349</tstamp>
    </comp>
    <comp ref="J9">
      <value>2_pin_Molex_connector</value>
      <footprint>ao_tht:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="SKU">A-826</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="ao_symbols" part="2_pin_Molex_connector" description="2 pin Molex connector 2.54 mm spacing"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60B16C09</tstamp>
    </comp>
    <comp ref="J8">
      <value>Conn_01x04</value>
      <footprint>Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector_Generic" part="Conn_01x04" description="Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60B16110</tstamp>
    </comp>
    <comp ref="J7">
      <value>Conn_01x10</value>
      <footprint>Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Connector_Generic" part="Conn_01x10" description="Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/)"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60B160FF</tstamp>
    </comp>
    <comp ref="R14">
      <value>B20k</value>
      <footprint>ao_tht:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles_centered</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60A9C088</tstamp>
    </comp>
    <comp ref="S1">
      <value>SW_Push</value>
      <footprint>ao_tht:Push_button_A-5050</footprint>
      <datasheet>~</datasheet>
      <fields>
        <field name="Manufacturer">Dailywell</field>
        <field name="Part">PAS7B3M1CESA6-5</field>
        <field name="SKU">A-3588</field>
        <field name="Vendor">Tayda</field>
      </fields>
      <libsource lib="Switch" part="SW_Push" description="Push button switch, generic, two pins"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60970E37</tstamp>
    </comp>
    <comp ref="R114">
      <value>B20k</value>
      <footprint>ao_tht:Potentiometer_Alpha_16mm_Single_Vertical</footprint>
      <datasheet>~</datasheet>
      <libsource lib="Device" part="R_POT" description="Potentiometer"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60802BB2</tstamp>
    </comp>
    <comp ref="H1">
      <value>MountingHole</value>
      <footprint>ao_tht:MountingHole_3.2mm_M3</footprint>
      <fields>
        <field name="Config">DNF</field>
      </fields>
      <libsource lib="ao_symbols" part="MountingHole" description=""/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>6085845D</tstamp>
    </comp>
    <comp ref="H2">
      <value>MountingHole</value>
      <footprint>ao_tht:MountingHole_3.2mm_M3</footprint>
      <fields>
        <field name="Config">DNF</field>
      </fields>
      <libsource lib="ao_symbols" part="MountingHole" description=""/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60858464</tstamp>
    </comp>
    <comp ref="H3">
      <value>MountingHole</value>
      <footprint>ao_tht:MountingHole_3.2mm_M3</footprint>
      <fields>
        <field name="Config">DNF</field>
      </fields>
      <libsource lib="ao_symbols" part="MountingHole" description=""/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>6085846C</tstamp>
    </comp>
    <comp ref="H4">
      <value>MountingHole</value>
      <footprint>ao_tht:MountingHole_3.2mm_M3</footprint>
      <fields>
        <field name="Config">DNF</field>
      </fields>
      <libsource lib="ao_symbols" part="MountingHole" description=""/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60858473</tstamp>
    </comp>
    <comp ref="S2">
      <value>SW_3PDT_x3</value>
      <footprint>ao_tht:3PDT-toggle-switch-1M-seriesx</footprint>
      <libsource lib="ao_symbols" part="SW_3PDT_x3" description="Switch, triple pole double throw, separate symbols"/>
      <sheetpath names="/Pots, switches, misc/" tstamps="/607ED812/"/>
      <tstamp>60813876</tstamp>
    </comp>
  </components>
  <libparts>
    <libpart lib="Amplifier_Operational" part="LM2902">
      <aliases>
        <alias>LM324</alias>
        <alias>TLC274</alias>
        <alias>TLC279</alias>
        <alias>TL074</alias>
        <alias>LM324A</alias>
        <alias>MCP6004</alias>
        <alias>TL084</alias>
        <alias>TL064</alias>
        <alias>LMV324</alias>
        <alias>LMC6484</alias>
        <alias>MCP604</alias>
        <alias>MC33079</alias>
        <alias>MC33174</alias>
        <alias>MC33179</alias>
        <alias>OPA1604</alias>
        <alias>OPA1679</alias>
        <alias>OPA4134</alias>
        <alias>OPA4340UA</alias>
        <alias>OPA4376</alias>
        <alias>MCP6L94</alias>
        <alias>TSV914</alias>
        <alias>ADA4807-4</alias>
        <alias>TSV994</alias>
      </aliases>
      <description>Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14</description>
      <docs>http://www.ti.com/lit/ds/symlink/lm2902-n.pdf</docs>
      <footprints>
        <fp>SOIC*3.9x8.7mm*P1.27mm*</fp>
        <fp>DIP*W7.62mm*</fp>
        <fp>TSSOP*4.4x5mm*P0.65mm*</fp>
        <fp>SSOP*5.3x6.2mm*P0.65mm*</fp>
        <fp>MSOP*3x3mm*P0.5mm*</fp>
      </footprints>
      <fields>
        <field name="Reference">U</field>
        <field name="Value">LM2902</field>
      </fields>
      <pins>
        <pin num="1" name="~" type="output"/>
        <pin num="2" name="-" type="input"/>
        <pin num="3" name="+" type="input"/>
        <pin num="4" name="V+" type="power_in"/>
        <pin num="5" name="+" type="input"/>
        <pin num="6" name="-" type="input"/>
        <pin num="7" name="~" type="output"/>
        <pin num="8" name="~" type="output"/>
        <pin num="9" name="-" type="input"/>
        <pin num="10" name="+" type="input"/>
        <pin num="11" name="V-" type="power_in"/>
        <pin num="12" name="+" type="input"/>
        <pin num="13" name="-" type="input"/>
        <pin num="14" name="~" type="output"/>
      </pins>
    </libpart>
    <libpart lib="Amplifier_Operational" part="LM2904">
      <aliases>
        <alias>LM358</alias>
        <alias>AD8620</alias>
        <alias>LMC6062</alias>
        <alias>LMC6082</alias>
        <alias>TL062</alias>
        <alias>TL072</alias>
        <alias>TL082</alias>
        <alias>NE5532</alias>
        <alias>SA5532</alias>
        <alias>RC4558</alias>
        <alias>RC4560</alias>
        <alias>RC4580</alias>
        <alias>LMV358</alias>
        <alias>TS912</alias>
        <alias>TSV912IDT</alias>
        <alias>TSV912IST</alias>
        <alias>TLC272</alias>
        <alias>TLC277</alias>
        <alias>MCP602</alias>
        <alias>OPA1678</alias>
        <alias>OPA2134</alias>
        <alias>OPA2340</alias>
        <alias>OPA2376xxD</alias>
        <alias>OPA2376xxDGK</alias>
        <alias>MC33078</alias>
        <alias>MC33178</alias>
        <alias>LM4562</alias>
        <alias>OP249</alias>
        <alias>OP275</alias>
        <alias>ADA4075-2</alias>
        <alias>MCP6002-xP</alias>
        <alias>MCP6002-xSN</alias>
        <alias>MCP6002-xMS</alias>
        <alias>LM7332</alias>
        <alias>OPA2333xxD</alias>
        <alias>OPA2333xxDGK</alias>
        <alias>LMC6482</alias>
        <alias>LT1492</alias>
        <alias>LTC6081xMS8</alias>
        <alias>LM6172</alias>
        <alias>MCP6L92</alias>
        <alias>NJM2043</alias>
        <alias>NJM2114</alias>
        <alias>NJM4556A</alias>
        <alias>NJM4558</alias>
        <alias>NJM4559</alias>
        <alias>NJM4560</alias>
        <alias>NJM4580</alias>
        <alias>NJM5532</alias>
        <alias>ADA4807-2ARM</alias>
        <alias>OPA2691</alias>
        <alias>LT6234</alias>
        <alias>OPA2356xxD</alias>
        <alias>OPA2356xxDGK</alias>
        <alias>OPA1612AxD</alias>
        <alias>MC33172</alias>
        <alias>OPA1602</alias>
        <alias>TLV2372</alias>
        <alias>LT6237</alias>
        <alias>OPA2277</alias>
        <alias>MCP6022</alias>
        <alias>MCP6V67EMS</alias>
      </aliases>
      <description>Dual Operational Amplifiers, DIP-8/SOIC-8/TSSOP-8/VSSOP-8</description>
      <docs>http://www.ti.com/lit/ds/symlink/lm358.pdf</docs>
      <footprints>
        <fp>SOIC*3.9x4.9mm*P1.27mm*</fp>
        <fp>DIP*W7.62mm*</fp>
        <fp>TO*99*</fp>
        <fp>OnSemi*Micro8*</fp>
        <fp>TSSOP*3x3mm*P0.65mm*</fp>
        <fp>TSSOP*4.4x3mm*P0.65mm*</fp>
        <fp>MSOP*3x3mm*P0.65mm*</fp>
        <fp>SSOP*3.9x4.9mm*P0.635mm*</fp>
        <fp>LFCSP*2x2mm*P0.5mm*</fp>
        <fp>*SIP*</fp>
        <fp>SOIC*5.3x6.2mm*P1.27mm*</fp>
      </footprints>
      <fields>
        <field name="Reference">U</field>
        <field name="Value">LM2904</field>
      </fields>
      <pins>
        <pin num="1" name="~" type="output"/>
        <pin num="2" name="-" type="input"/>
        <pin num="3" name="+" type="input"/>
        <pin num="4" name="V-" type="power_in"/>
        <pin num="5" name="+" type="input"/>
        <pin num="6" name="-" type="input"/>
        <pin num="7" name="~" type="output"/>
        <pin num="8" name="V+" type="power_in"/>
      </pins>
    </libpart>
    <libpart lib="Connector" part="AudioJack2">
      <description>Audio Jack, 2 Poles (Mono / TS)</description>
      <docs>~</docs>
      <footprints>
        <fp>Jack*</fp>
      </footprints>
      <fields>
        <field name="Reference">J</field>
        <field name="Value">AudioJack2</field>
      </fields>
      <pins>
        <pin num="S" name="~" type="passive"/>
        <pin num="T" name="~" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Connector" part="AudioJack2_SwitchT">
      <description>Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling)</description>
      <docs>~</docs>
      <footprints>
        <fp>Jack*</fp>
      </footprints>
      <fields>
        <field name="Reference">J</field>
        <field name="Value">AudioJack2_SwitchT</field>
      </fields>
      <pins>
        <pin num="S" name="~" type="passive"/>
        <pin num="T" name="~" type="passive"/>
        <pin num="TN" name="~" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Connector_Generic" part="Conn_01x04">
      <description>Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)</description>
      <docs>~</docs>
      <footprints>
        <fp>Connector*:*_1x??_*</fp>
      </footprints>
      <fields>
        <field name="Reference">J</field>
        <field name="Value">Conn_01x04</field>
      </fields>
      <pins>
        <pin num="1" name="Pin_1" type="passive"/>
        <pin num="2" name="Pin_2" type="passive"/>
        <pin num="3" name="Pin_3" type="passive"/>
        <pin num="4" name="Pin_4" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Connector_Generic" part="Conn_01x10">
      <description>Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/)</description>
      <docs>~</docs>
      <footprints>
        <fp>Connector*:*_1x??_*</fp>
      </footprints>
      <fields>
        <field name="Reference">J</field>
        <field name="Value">Conn_01x10</field>
      </fields>
      <pins>
        <pin num="1" name="Pin_1" type="passive"/>
        <pin num="2" name="Pin_2" type="passive"/>
        <pin num="3" name="Pin_3" type="passive"/>
        <pin num="4" name="Pin_4" type="passive"/>
        <pin num="5" name="Pin_5" type="passive"/>
        <pin num="6" name="Pin_6" type="passive"/>
        <pin num="7" name="Pin_7" type="passive"/>
        <pin num="8" name="Pin_8" type="passive"/>
        <pin num="9" name="Pin_9" type="passive"/>
        <pin num="10" name="Pin_10" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Device" part="C">
      <description>Unpolarized capacitor</description>
      <docs>~</docs>
      <footprints>
        <fp>C_*</fp>
      </footprints>
      <fields>
        <field name="Reference">C</field>
        <field name="Value">C</field>
      </fields>
      <pins>
        <pin num="1" name="~" type="passive"/>
        <pin num="2" name="~" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Device" part="CP">
      <description>Polarized capacitor</description>
      <docs>~</docs>
      <footprints>
        <fp>CP_*</fp>
      </footprints>
      <fields>
        <field name="Reference">C</field>
        <field name="Value">CP</field>
      </fields>
      <pins>
        <pin num="1" name="~" type="passive"/>
        <pin num="2" name="~" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Device" part="D_Schottky">
      <description>Schottky diode</description>
      <docs>~</docs>
      <footprints>
        <fp>TO-???*</fp>
        <fp>*_Diode_*</fp>
        <fp>*SingleDiode*</fp>
        <fp>D_*</fp>
      </footprints>
      <fields>
        <field name="Reference">D</field>
        <field name="Value">D_Schottky</field>
      </fields>
      <pins>
        <pin num="1" name="K" type="passive"/>
        <pin num="2" name="A" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Device" part="LED">
      <description>Light emitting diode</description>
      <docs>~</docs>
      <footprints>
        <fp>LED*</fp>
        <fp>LED_SMD:*</fp>
        <fp>LED_THT:*</fp>
      </footprints>
      <fields>
        <field name="Reference">D</field>
        <field name="Value">LED</field>
      </fields>
      <pins>
        <pin num="1" name="K" type="passive"/>
        <pin num="2" name="A" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Device" part="R">
      <description>Resistor</description>
      <docs>~</docs>
      <footprints>
        <fp>R_*</fp>
      </footprints>
      <fields>
        <field name="Reference">R</field>
        <field name="Value">R</field>
      </fields>
      <pins>
        <pin num="1" name="~" type="passive"/>
        <pin num="2" name="~" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Device" part="R_POT">
      <description>Potentiometer</description>
      <docs>~</docs>
      <footprints>
        <fp>Potentiometer*</fp>
      </footprints>
      <fields>
        <field name="Reference">RV</field>
        <field name="Value">R_POT</field>
      </fields>
      <pins>
        <pin num="1" name="1" type="passive"/>
        <pin num="2" name="2" type="passive"/>
        <pin num="3" name="3" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Diode" part="1N4148">
      <aliases>
        <alias>1N4448</alias>
        <alias>1N4149</alias>
        <alias>1N4151</alias>
        <alias>1N914</alias>
        <alias>BA243</alias>
        <alias>BA244</alias>
        <alias>BA282</alias>
        <alias>BA283</alias>
        <alias>BAV17</alias>
        <alias>BAV18</alias>
        <alias>BAV19</alias>
        <alias>BAV20</alias>
        <alias>BAV21</alias>
        <alias>BAW75</alias>
        <alias>BAW76</alias>
        <alias>BAY93</alias>
      </aliases>
      <description>100V 0.15A standard switching diode, DO-35</description>
      <docs>https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf</docs>
      <footprints>
        <fp>D*DO?35*</fp>
      </footprints>
      <fields>
        <field name="Reference">D</field>
        <field name="Value">1N4148</field>
        <field name="Footprint">Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal</field>
      </fields>
      <pins>
        <pin num="1" name="K" type="passive"/>
        <pin num="2" name="A" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Switch" part="SW_Push">
      <description>Push button switch, generic, two pins</description>
      <docs>~</docs>
      <fields>
        <field name="Reference">SW</field>
        <field name="Value">SW_Push</field>
      </fields>
      <pins>
        <pin num="1" name="1" type="passive"/>
        <pin num="2" name="2" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Switch" part="SW_SPDT">
      <description>Switch, single pole double throw</description>
      <docs>~</docs>
      <fields>
        <field name="Reference">SW</field>
        <field name="Value">SW_SPDT</field>
      </fields>
      <pins>
        <pin num="1" name="A" type="passive"/>
        <pin num="2" name="B" type="passive"/>
        <pin num="3" name="C" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="Timer" part="NE555P">
      <aliases>
        <alias>LM555xN</alias>
        <alias>ICM7555xP</alias>
        <alias>LMC555xN</alias>
        <alias>MC1455P</alias>
        <alias>TLC555xP</alias>
        <alias>NA555P</alias>
        <alias>SE555P</alias>
        <alias>SA555P</alias>
      </aliases>
      <description>Precision Timers, 555 compatible,  PDIP-8</description>
      <docs>http://www.ti.com/lit/ds/symlink/ne555.pdf</docs>
      <footprints>
        <fp>DIP*W7.62mm*</fp>
      </footprints>
      <fields>
        <field name="Reference">U</field>
        <field name="Value">NE555P</field>
        <field name="Footprint">Package_DIP:DIP-8_W7.62mm</field>
      </fields>
      <pins>
        <pin num="1" name="GND" type="power_in"/>
        <pin num="2" name="TR" type="input"/>
        <pin num="3" name="Q" type="output"/>
        <pin num="4" name="R" type="input"/>
        <pin num="5" name="CV" type="input"/>
        <pin num="6" name="THR" type="input"/>
        <pin num="7" name="DIS" type="input"/>
        <pin num="8" name="VCC" type="power_in"/>
      </pins>
    </libpart>
    <libpart lib="Transistor_BJT" part="2N3904">
      <description>0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92</description>
      <docs>https://www.onsemi.com/pub/Collateral/2N3903-D.PDF</docs>
      <footprints>
        <fp>TO?92*</fp>
      </footprints>
      <fields>
        <field name="Reference">Q</field>
        <field name="Value">2N3904</field>
        <field name="Footprint">Package_TO_SOT_THT:TO-92_Inline</field>
      </fields>
      <pins>
        <pin num="1" name="E" type="passive"/>
        <pin num="2" name="B" type="passive"/>
        <pin num="3" name="C" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="ao_symbols" part="2_pin_Molex_connector">
      <description>2 pin Molex connector 2.54 mm spacing</description>
      <docs>~</docs>
      <footprints>
        <fp>Connector*:*_1x??_*</fp>
      </footprints>
      <fields>
        <field name="Reference">J</field>
        <field name="Value">2_pin_Molex_connector</field>
        <field name="Vendor">Tayda</field>
        <field name="SKU">A-826</field>
      </fields>
      <pins>
        <pin num="1" name="Pin_1" type="passive"/>
        <pin num="2" name="Pin_2" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="ao_symbols" part="2_pin_Molex_header">
      <description>2 pin Molex header 2.54 mm spacing</description>
      <docs>~</docs>
      <footprints>
        <fp>Connector*:*_1x??_*</fp>
      </footprints>
      <fields>
        <field name="Reference">J</field>
        <field name="Value">2_pin_Molex_header</field>
        <field name="Footprint">ao_tht:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical</field>
        <field name="Vendor">Tayda</field>
        <field name="SKU">A-804</field>
      </fields>
      <pins>
        <pin num="1" name="Pin_1" type="passive"/>
        <pin num="2" name="Pin_2" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="ao_symbols" part="MountingHole">
      <footprints>
        <fp>MountingHole*</fp>
      </footprints>
      <fields>
        <field name="Reference">H</field>
        <field name="Value">MountingHole</field>
        <field name="Config">DNF</field>
      </fields>
    </libpart>
    <libpart lib="ao_symbols" part="SW_3PDT_x3">
      <description>Switch, triple pole double throw, separate symbols</description>
      <docs>~</docs>
      <footprints>
        <fp>SW*DPDT*</fp>
      </footprints>
      <fields>
        <field name="Reference">SW</field>
        <field name="Value">SW_3PDT_x3</field>
      </fields>
      <pins>
        <pin num="1" name="A" type="passive"/>
        <pin num="2" name="B" type="passive"/>
        <pin num="3" name="C" type="passive"/>
        <pin num="4" name="A" type="passive"/>
        <pin num="5" name="B" type="passive"/>
        <pin num="6" name="C" type="passive"/>
        <pin num="7" name="A" type="passive"/>
        <pin num="8" name="B" type="passive"/>
        <pin num="9" name="C" type="passive"/>
      </pins>
    </libpart>
    <libpart lib="ao_symbols" part="Synth_power_2x5">
      <description>2x5 pin shrouded header 2.54 mm spacing</description>
      <fields>
        <field name="Reference">J</field>
        <field name="Value">Synth_power_2x5</field>
        <field name="Footprint">ao_tht:Power_Header</field>
        <field name="Vendor">Tayda</field>
        <field name="SKU">A-2939</field>
      </fields>
      <pins>
        <pin num="1" name="-12V" type="power_out"/>
        <pin num="2" name="-12V" type="passive"/>
        <pin num="3" name="GND" type="power_out"/>
        <pin num="4" name="GND" type="passive"/>
        <pin num="5" name="GND" type="passive"/>
        <pin num="6" name="GND" type="passive"/>
        <pin num="7" name="GND" type="passive"/>
        <pin num="8" name="GND" type="passive"/>
        <pin num="9" name="+12V" type="power_out"/>
        <pin num="10" name="+12V" type="passive"/>
      </pins>
    </libpart>
  </libparts>
  <libraries>
    <library logical="Amplifier_Operational">
      <uri>/usr/share/kicad/library/Amplifier_Operational.lib</uri>
    </library>
    <library logical="Connector">
      <uri>/usr/share/kicad/library/Connector.lib</uri>
    </library>
    <library logical="Connector_Generic">
      <uri>/usr/share/kicad/library/Connector_Generic.lib</uri>
    </library>
    <library logical="Device">
      <uri>/usr/share/kicad/library/Device.lib</uri>
    </library>
    <library logical="Diode">
      <uri>/usr/share/kicad/library/Diode.lib</uri>
    </library>
    <library logical="Switch">
      <uri>/usr/share/kicad/library/Switch.lib</uri>
    </library>
    <library logical="Timer">
      <uri>/usr/share/kicad/library/Timer.lib</uri>
    </library>
    <library logical="Transistor_BJT">
      <uri>/usr/share/kicad/library/Transistor_BJT.lib</uri>
    </library>
    <library logical="ao_symbols">
      <uri>/home/rsholmes/Documents/Hobbies/Music/Instruments/Synths/Kassutronics/Precision ADSR/PrecADSRmod/Hardware/PCB/precadsr/ao_symbols.lib</uri>
    </library>
  </libraries>
  <nets>
    <net code="1" name="Net-(U3-Pad6)">
      <node ref="U3" pin="7"/>
      <node ref="U3" pin="6"/>
    </net>
    <net code="2" name="GND">
      <node ref="R27" pin="1"/>
      <node ref="J4" pin="1"/>
      <node ref="U1" pin="1"/>
      <node ref="R24" pin="1"/>
      <node ref="R6" pin="1"/>
      <node ref="C10" pin="1"/>
      <node ref="C3" pin="2"/>
      <node ref="J2" pin="4"/>
      <node ref="J2" pin="3"/>
      <node ref="C8" pin="2"/>
      <node ref="J2" pin="5"/>
      <node ref="R1" pin="1"/>
      <node ref="C4" pin="1"/>
      <node ref="C7" pin="1"/>
      <node ref="U2" pin="12"/>
      <node ref="R5" pin="1"/>
      <node ref="R26" pin="1"/>
      <node ref="C6" pin="2"/>
      <node ref="C5" pin="2"/>
      <node ref="Q3" pin="1"/>
      <node ref="D1" pin="2"/>
      <node ref="J2" pin="8"/>
      <node ref="J2" pin="7"/>
      <node ref="J2" pin="6"/>
      <node ref="C9" pin="2"/>
      <node ref="C2" pin="2"/>
      <node ref="R23" pin="1"/>
      <node ref="J12" pin="S"/>
      <node ref="J13" pin="S"/>
      <node ref="J5" pin="S"/>
      <node ref="J1" pin="S"/>
      <node ref="U3" pin="5"/>
      <node ref="U3" pin="4"/>
    </net>
    <net code="3" name="Net-(R25-Pad1)">
      <node ref="U3" pin="3"/>
      <node ref="R26" pin="2"/>
      <node ref="R25" pin="1"/>
    </net>
    <net code="4" name="+12V">
      <node ref="U3" pin="8"/>
      <node ref="U1" pin="8"/>
      <node ref="U2" pin="4"/>
      <node ref="C8" pin="1"/>
      <node ref="R22" pin="2"/>
      <node ref="R7" pin="1"/>
      <node ref="R15" pin="2"/>
      <node ref="R25" pin="2"/>
      <node ref="C9" pin="1"/>
      <node ref="R3" pin="2"/>
      <node ref="R20" pin="1"/>
      <node ref="R4" pin="2"/>
      <node ref="D6" pin="1"/>
      <node ref="C5" pin="1"/>
      <node ref="C6" pin="1"/>
    </net>
    <net code="5" name="LOOP_CONN_1">
      <node ref="J4" pin="7"/>
      <node ref="U3" pin="1"/>
    </net>
    <net code="6" name="Net-(L1-Pad2)">
      <node ref="R19" pin="1"/>
      <node ref="R18" pin="2"/>
      <node ref="L1" pin="2"/>
    </net>
    <net code="7" name="Net-(J12-PadT)">
      <node ref="R18" pin="1"/>
      <node ref="J12" pin="T"/>
    </net>
    <net code="8" name="Net-(J13-PadT)">
      <node ref="J13" pin="T"/>
      <node ref="R16" pin="1"/>
    </net>
    <net code="9" name="Net-(D5-Pad2)">
      <node ref="U2" pin="14"/>
      <node ref="D5" pin="2"/>
      <node ref="L1" pin="1"/>
    </net>
    <net code="10" name="SPEED_2">
      <node ref="U2" pin="10"/>
      <node ref="J4" pin="3"/>
    </net>
    <net code="11" name="Net-(C11-Pad1)">
      <node ref="C11" pin="1"/>
      <node ref="D10" pin="2"/>
      <node ref="R24" pin="2"/>
    </net>
    <net code="12" name="TRIG">
      <node ref="D10" pin="1"/>
      <node ref="Q3" pin="2"/>
      <node ref="D9" pin="1"/>
      <node ref="D8" pin="1"/>
    </net>
    <net code="13" name="Net-(C1-Pad1)">
      <node ref="C1" pin="1"/>
      <node ref="D8" pin="2"/>
      <node ref="R6" pin="2"/>
    </net>
    <net code="14" name="Net-(C12-Pad1)">
      <node ref="C12" pin="1"/>
      <node ref="R27" pin="2"/>
      <node ref="D9" pin="2"/>
    </net>
    <net code="15" name="-12V">
      <node ref="C7" pin="2"/>
      <node ref="C4" pin="2"/>
      <node ref="U2" pin="11"/>
      <node ref="D7" pin="2"/>
    </net>
    <net code="16" name="/TIN">
      <node ref="R23" pin="2"/>
      <node ref="C11" pin="2"/>
      <node ref="J5" pin="T"/>
    </net>
    <net code="17" name="SUS2">
      <node ref="J6" pin="2"/>
      <node ref="U2" pin="5"/>
    </net>
    <net code="18" name="SUS1">
      <node ref="U1" pin="7"/>
      <node ref="J6" pin="1"/>
    </net>
    <net code="19" name="SUS3">
      <node ref="R15" pin="1"/>
      <node ref="J6" pin="3"/>
    </net>
    <net code="20" name="PUSH_2">
      <node ref="R21" pin="2"/>
      <node ref="J3" pin="2"/>
    </net>
    <net code="21" name="PUSH_1">
      <node ref="R20" pin="2"/>
      <node ref="J3" pin="1"/>
    </net>
    <net code="22" name="LOOP_CONN_2">
      <node ref="J4" pin="8"/>
      <node ref="C12" pin="2"/>
    </net>
    <net code="23" name="LOOP_NORM_2">
      <node ref="J4" pin="6"/>
      <node ref="J1" pin="TN"/>
    </net>
    <net code="24" name="LOOP_NORM_1">
      <node ref="J4" pin="5"/>
      <node ref="R22" pin="1"/>
    </net>
    <net code="25" name="SPEED_3">
      <node ref="C3" pin="1"/>
      <node ref="J4" pin="4"/>
    </net>
    <net code="26" name="SPEED_1">
      <node ref="C10" pin="2"/>
      <node ref="J4" pin="2"/>
    </net>
    <net code="27" name="Net-(D2-Pad2)">
      <node ref="D2" pin="2"/>
      <node ref="U1" pin="3"/>
    </net>
    <net code="28" name="Net-(C2-Pad1)">
      <node ref="U1" pin="5"/>
      <node ref="C2" pin="1"/>
    </net>
    <net code="29" name="Net-(Q1-Pad3)">
      <node ref="R3" pin="1"/>
      <node ref="Q2" pin="2"/>
      <node ref="Q1" pin="3"/>
    </net>
    <net code="30" name="Net-(Q3-Pad3)">
      <node ref="U1" pin="2"/>
      <node ref="R7" pin="2"/>
      <node ref="Q3" pin="3"/>
    </net>
    <net code="31" name="Net-(D4-Pad1)">
      <node ref="D4" pin="1"/>
      <node ref="U2" pin="7"/>
    </net>
    <net code="32" name="DEC1">
      <node ref="J4" pin="10"/>
      <node ref="D4" pin="2"/>
      <node ref="U2" pin="6"/>
    </net>
    <net code="33" name="ATT1">
      <node ref="J4" pin="9"/>
      <node ref="D2" pin="1"/>
    </net>
    <net code="34" name="/+12_IN">
      <node ref="J2" pin="10"/>
      <node ref="J2" pin="9"/>
      <node ref="D6" pin="2"/>
    </net>
    <net code="35" name="/GIN">
      <node ref="J1" pin="T"/>
      <node ref="R2" pin="2"/>
      <node ref="R1" pin="2"/>
    </net>
    <net code="36" name="GATE">
      <node ref="Q2" pin="3"/>
      <node ref="U1" pin="4"/>
      <node ref="R4" pin="1"/>
      <node ref="C1" pin="2"/>
      <node ref="U2" pin="3"/>
    </net>
    <net code="37" name="THR">
      <node ref="R17" pin="1"/>
      <node ref="U2" pin="8"/>
      <node ref="U3" pin="2"/>
      <node ref="U2" pin="9"/>
      <node ref="U1" pin="6"/>
      <node ref="R16" pin="2"/>
    </net>
    <net code="38" name="Net-(D3-Pad1)">
      <node ref="U2" pin="1"/>
      <node ref="D3" pin="1"/>
    </net>
    <net code="39" name="REL1">
      <node ref="J6" pin="4"/>
      <node ref="U2" pin="2"/>
      <node ref="D3" pin="2"/>
    </net>
    <net code="40" name="Net-(D5-Pad1)">
      <node ref="U2" pin="13"/>
      <node ref="R19" pin="2"/>
      <node ref="D5" pin="1"/>
      <node ref="R17" pin="2"/>
    </net>
    <net code="41" name="Net-(D1-Pad1)">
      <node ref="D1" pin="1"/>
      <node ref="R2" pin="1"/>
      <node ref="R21" pin="1"/>
      <node ref="Q1" pin="2"/>
    </net>
    <net code="42" name="/-12_IN">
      <node ref="J2" pin="1"/>
      <node ref="J2" pin="2"/>
      <node ref="D7" pin="1"/>
    </net>
    <net code="43" name="Net-(Q1-Pad1)">
      <node ref="Q1" pin="1"/>
      <node ref="Q2" pin="1"/>
      <node ref="R5" pin="2"/>
    </net>
    <net code="44" name="SPEED_1_P">
      <node ref="J7" pin="2"/>
      <node ref="S3" pin="1"/>
    </net>
    <net code="45" name="DEC1_P">
      <node ref="R12" pin="2"/>
      <node ref="J7" pin="10"/>
    </net>
    <net code="46" name="REL1_P">
      <node ref="J8" pin="4"/>
      <node ref="R10" pin="2"/>
    </net>
    <net code="47" name="SPEED_2_P">
      <node ref="S3" pin="2"/>
      <node ref="R111" pin="3"/>
      <node ref="R111" pin="2"/>
      <node ref="R11" pin="2"/>
      <node ref="R13" pin="3"/>
      <node ref="R11" pin="3"/>
      <node ref="R113" pin="3"/>
      <node ref="R113" pin="2"/>
      <node ref="R109" pin="3"/>
      <node ref="R109" pin="2"/>
      <node ref="R9" pin="2"/>
      <node ref="R13" pin="2"/>
      <node ref="R9" pin="3"/>
      <node ref="J7" pin="3"/>
    </net>
    <net code="48" name="SPEED_3_P">
      <node ref="S3" pin="3"/>
      <node ref="J7" pin="4"/>
    </net>
    <net code="49" name="LOOP_NORM_1_P">
      <node ref="J7" pin="5"/>
      <node ref="S2" pin="3"/>
    </net>
    <net code="50" name="LOOP_NORM_2_P">
      <node ref="J7" pin="6"/>
      <node ref="S2" pin="2"/>
    </net>
    <net code="51" name="LOOP_CONN_1_P">
      <node ref="S2" pin="6"/>
      <node ref="J7" pin="7"/>
    </net>
    <net code="52" name="LOOP_CONN_2_P">
      <node ref="J7" pin="8"/>
      <node ref="S2" pin="5"/>
    </net>
    <net code="53" name="ATT1_P">
      <node ref="R8" pin="2"/>
      <node ref="J7" pin="9"/>
    </net>
    <net code="54" name="SUS3_P">
      <node ref="J8" pin="3"/>
      <node ref="R114" pin="3"/>
      <node ref="R14" pin="3"/>
    </net>
    <net code="55" name="/Pots, switches, misc/PUSH_2_P">
      <node ref="S1" pin="1"/>
      <node ref="J9" pin="2"/>
    </net>
    <net code="56" name="SUS2_P">
      <node ref="J8" pin="2"/>
      <node ref="S2" pin="8"/>
    </net>
    <net code="57" name="/Pots, switches, misc/PUSH_1_P">
      <node ref="S1" pin="2"/>
      <node ref="J9" pin="1"/>
    </net>
    <net code="58" name="SUS1_P">
      <node ref="J8" pin="1"/>
      <node ref="R114" pin="1"/>
      <node ref="R14" pin="1"/>
      <node ref="S2" pin="9"/>
    </net>
    <net code="59" name="Net-(S2-Pad4)">
      <node ref="S2" pin="4"/>
    </net>
    <net code="60" name="SUS2_S">
      <node ref="S2" pin="7"/>
      <node ref="R14" pin="2"/>
      <node ref="R114" pin="2"/>
    </net>
    <net code="61" name="GND2">
      <node ref="J7" pin="1"/>
    </net>
    <net code="62" name="Net-(S2-Pad1)">
      <node ref="S2" pin="1"/>
    </net>
    <net code="63" name="Net-(R109-Pad1)">
      <node ref="R9" pin="1"/>
      <node ref="R109" pin="1"/>
      <node ref="R8" pin="1"/>
    </net>
    <net code="64" name="Net-(R113-Pad1)">
      <node ref="R13" pin="1"/>
      <node ref="R12" pin="1"/>
      <node ref="R113" pin="1"/>
    </net>
    <net code="65" name="Net-(R10-Pad1)">
      <node ref="R10" pin="1"/>
      <node ref="R111" pin="1"/>
      <node ref="R11" pin="1"/>
    </net>
  </nets>
</export>
