<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.7.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="33.782" y2="0" width="0" layer="20"/>
<wire x1="33.782" y1="0" x2="33.782" y2="33.4645" width="0" layer="20"/>
<wire x1="33.782" y1="33.4645" x2="0" y2="33.4645" width="0" layer="20"/>
<wire x1="0" y1="33.4645" x2="0" y2="0" width="0" layer="20"/>
<text>KO Amps Cherub
v1.0 2021</text>
<text>v3</text>
<text>IN</text>
<text>v1</text>
<text>LED</text>
<text>GND</text>
<text>9v</text>
<text>GND</text>
</plain>
<libraries>
<library name="caps-film">
<packages>
<package name="0.1&quot;">
<description>0.1" (2.54mm) spacing</description>
</package>
</packages>
</library>
<library name="caps-elec">
<packages>
<package name="0502">
<description>0.1" (2.54mm) spacing</description>
</package>
</packages>
</library>
<library name="capacitors-film">
<packages>
<package name="BOX_SMALL">
</package>
</packages>
</library>
<library name="diodes">
<packages>
<package name="DO41-1">
<description>&lt;b&gt;DO-41 0.1" pad spacing, vertical&lt;/b&gt;</description>
</package>
<package name="3MM_2">
</package>
</packages>
</library>
<library name="integrated circuits">
<packages>
<package name="SIL08">
</package>
</packages>
</library>
<library name="potentiometers">
<packages>
<package name="16MM_B.MOUNT">
<description>&lt;b&gt;16mm / Right-Angle /  PC Mount / Short Pin&lt;/b&gt;
&lt;p&gt;
For bottom-mount potentiometers
&lt;p&gt;
&lt;a href="http://smallbear-electronics.mybigcommerce.com/alpha-single-gang-16mm-right-angle-pc-mount/"&gt;http://smallbear-electronics.mybigcommerce.com/alpha-single-gang-16mm-right-angle-pc-mount/&lt;/a&gt;</description>
</package>
</packages>
</library>
<library name="resistors">
<packages>
<package name="0.1&quot;">
<description>0.1"  (2.54mm) lead spacing, 1/8 or 1/4W (standing)</description>
</package>
<package name="0.3&quot;.B">
<description>0.3"  (7.62mm) lead spacing, 1/4W (flat)</description>
</package>
<package name="0.2&quot;">
<description>0.2"  (5mm) lead spacing, 1/8W (flat), 1/4W (standing)</description>
</package>
</packages>
</library>
<library name="supply pins">
<packages>
<package name="OCTO">
<description>Octogon shaped IN pad</description>
</package>
<package name="UNLABELED">
</package>
<package name="GROUND">
<description>Square shaped GROUND pad</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="caps-film" package="0.1&quot;" value="150p">
<attribute name="NAME"/>
</element>
<element name="C10" library="caps-elec" package="0502" value="10uf">
<attribute name="NAME"/>
</element>
<element name="C11" library="caps-elec" package="0502" value="10uf"/>
<element name="C12" library="caps-elec" package="0502" value="1uf">
<attribute name="NAME"/>
</element>
<element name="C13" library="caps-elec" package="0502" value="1uf">
<attribute name="NAME"/>
</element>
<element name="C2" library="capacitors-film" package="BOX_SMALL" value="0.15"/>
<element name="C3" library="capacitors-film" package="BOX_SMALL" value="0.01"/>
<element name="C4" library="capacitors-film" package="BOX_SMALL" value="0.005"/>
<element name="C5" library="capacitors-film" package="BOX_SMALL" value="0.1"/>
<element name="C6" library="capacitors-film" package="BOX_SMALL" value="0.1"/>
<element name="C7" library="capacitors-film" package="BOX_SMALL" value="0.22"/>
<element name="C8" library="caps-elec" package="0502" value="100uf"/>
<element name="C9" library="caps-elec" package="0502" value="10uf"/>
<element name="D1" library="diodes" package="DO41-1" value="1n5819">
<attribute name="NAME"/>
</element>
<element name="D2" library="diodes" package="3MM_2" value="LED.3">
<attribute name="NAME"/>
</element>
<element name="D3" library="diodes" package="3MM_2" value="LED.3">
<attribute name="NAME"/>
</element>
<element name="IC1" library="integrated circuits" package="SIL08" value="4558">
<attribute name="NAME"/>
</element>
<element name="IC2" library="integrated circuits" package="SIL08" value="4558">
<attribute name="NAME"/>
</element>
<element name="SUST" library="potentiometers" package="16MM_B.MOUNT" value="10kb">
<attribute name="NAME"/>
</element>
<element name="TONE" library="potentiometers" package="16MM_B.MOUNT" value="10kb">
<attribute name="NAME"/>
</element>
<element name="R1" library="resistors" package="0.3&quot;.B" value="47R"/>
<element name="R10" library="resistors" package="0.1&quot;" value="47R">
<attribute name="NAME"/>
</element>
<element name="R11" library="resistors" package="0.1&quot;" value="8.2k">
<attribute name="NAME"/>
</element>
<element name="R12" library="resistors" package="0.1&quot;" value="470k">
<attribute name="NAME"/>
</element>
<element name="R13" library="resistors" package="0.2&quot;" value="6.8k"/>
<element name="R14" library="resistors" package="0.1&quot;" value="1.2k">
<attribute name="NAME"/>
</element>
<element name="R15" library="resistors" package="0.1&quot;" value="220k">
<attribute name="NAME"/>
</element>
<element name="R16" library="resistors" package="0.1&quot;" value="220k">
<attribute name="NAME"/>
</element>
<element name="R17" library="resistors" package="0.3&quot;.B" value="820k"/>
<element name="R18" library="resistors" package="0.1&quot;" value="1M">
<attribute name="NAME"/>
</element>
<element name="R2" library="resistors" package="0.1&quot;" value="2.2M">
<attribute name="NAME"/>
</element>
<element name="R3" library="resistors" package="0.2&quot;" value="56k"/>
<element name="R4" library="resistors" package="0.1&quot;" value="330k">
<attribute name="NAME"/>
</element>
<element name="R5" library="resistors" package="0.3&quot;.B" value="10k"/>
<element name="R6" library="resistors" package="0.3&quot;.B" value="47k"/>
<element name="R7" library="resistors" package="0.3&quot;.B" value="62k"/>
<element name="R8" library="resistors" package="0.3&quot;.B" value="LED"/>
<element name="R9" library="resistors" package="0.3&quot;.B" value="560k"/>
<element name="U$1" library="supply pins" package="OCTO" value="OCTOPAD"/>
<element name="U$2" library="supply pins" package="OCTO" value="OCTOPAD"/>
<element name="U$3" library="supply pins" package="UNLABELED" value="ROUNDPAD"/>
<element name="U$4" library="supply pins" package="UNLABELED" value="ROUNDPAD"/>
<element name="U$5" library="supply pins" package="GROUND" value="SQUAREPAD"/>
<element name="U$6" library="supply pins" package="GROUND" value="SQUAREPAD"/>
<element name="U$7" library="supply pins" package="GROUND" value="SQUAREPAD"/>
</elements>
<signals>
<signal name="N$1">
<contactref element="U$3" pad="P$1"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="N$2">
<contactref element="D1" pad="C"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="R1" pad="2"/>
<contactref element="IC1" pad="8"/>
<contactref element="IC2" pad="8"/>
<contactref element="R15" pad="1"/>
<contactref element="C8" pad="+"/>
<contactref element="R17" pad="1"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="R15" pad="2"/>
<contactref element="R16" pad="1"/>
<contactref element="IC1" pad="5"/>
<contactref element="C9" pad="+"/>
</signal>
<signal name="N$6">
<contactref element="U$4" pad="P$1"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="GND">
<contactref element="IC1" pad="4"/>
<contactref element="IC2" pad="4"/>
<contactref element="C8" pad="-"/>
<contactref element="R16" pad="2"/>
<contactref element="R18" pad="2"/>
<contactref element="U$5" pad="P$1"/>
<contactref element="R2" pad="1"/>
<contactref element="C3" pad="2"/>
<contactref element="C10" pad="-"/>
<contactref element="R14" pad="2"/>
<contactref element="C6" pad="1"/>
<contactref element="U$6" pad="P$1"/>
<contactref element="C7" pad="1"/>
<contactref element="C9" pad="-"/>
<contactref element="U$7" pad="P$1"/>
</signal>
<signal name="VREF">
<contactref element="R17" pad="2"/>
<contactref element="R18" pad="1"/>
<contactref element="C7" pad="2"/>
<contactref element="IC1" pad="3"/>
<contactref element="IC2" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="IC1" pad="1"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="C2" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="U$1" pad="P$1"/>
</signal>
<signal name="N$10">
<contactref element="C2" pad="1"/>
<contactref element="R3" pad="2"/>
</signal>
<signal name="N$11">
<contactref element="IC1" pad="6"/>
<contactref element="R3" pad="1"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="N$12">
<contactref element="IC1" pad="7"/>
<contactref element="R4" pad="2"/>
<contactref element="R5" pad="1"/>
</signal>
<signal name="N$5">
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="1"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="R6" pad="2"/>
<contactref element="IC2" pad="5"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="N$13">
<contactref element="IC2" pad="6"/>
<contactref element="R7" pad="2"/>
<contactref element="R9" pad="2"/>
</signal>
<signal name="N$14">
<contactref element="R9" pad="1"/>
<contactref element="IC2" pad="7"/>
<contactref element="C4" pad="2"/>
<contactref element="C11" pad="+"/>
</signal>
<signal name="N$15">
<contactref element="R10" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="C10" pad="+"/>
</signal>
<signal name="N$16">
<contactref element="SUST" pad="1"/>
<contactref element="R10" pad="2"/>
</signal>
<signal name="N$18">
<contactref element="C11" pad="-"/>
<contactref element="SUST" pad="3"/>
</signal>
<signal name="N$17">
<contactref element="SUST" pad="2"/>
<contactref element="C12" pad="-"/>
</signal>
<signal name="N$19">
<contactref element="C12" pad="+"/>
<contactref element="R11" pad="1"/>
</signal>
<signal name="N$20">
<contactref element="R11" pad="2"/>
<contactref element="IC2" pad="2"/>
<contactref element="R12" pad="1"/>
<contactref element="C1" pad="2"/>
<contactref element="D2" pad="P$1"/>
<contactref element="D3" pad="ANODE"/>
</signal>
<signal name="N$21">
<contactref element="IC2" pad="1"/>
<contactref element="R12" pad="2"/>
<contactref element="C1" pad="1"/>
<contactref element="D2" pad="ANODE"/>
<contactref element="D3" pad="P$1"/>
<contactref element="C5" pad="1"/>
<contactref element="C13" pad="+"/>
</signal>
<signal name="N$22">
<contactref element="C6" pad="2"/>
<contactref element="TONE" pad="1"/>
<contactref element="R13" pad="2"/>
</signal>
<signal name="N$23">
<contactref element="TONE" pad="3"/>
<contactref element="R14" pad="1"/>
<contactref element="C5" pad="2"/>
</signal>
<signal name="N$24">
<contactref element="C13" pad="-"/>
<contactref element="R13" pad="1"/>
</signal>
<signal name="N$25">
<contactref element="U$2" pad="P$1"/>
<contactref element="TONE" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
