<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.5.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="26.904" y2="0" width="0" layer="20"/>
<wire x1="26.904" y1="0" x2="26.904" y2="28.88" width="0" layer="20"/>
<wire x1="26.904" y1="28.88" x2="0" y2="28.88" width="0" layer="20"/>
<wire x1="0" y1="28.88" x2="0" y2="0" width="0" layer="20"/>
<text>GND</text>
<text>5V</text>
<text>LEFT</text>
<text>RIGHT</text>
<text>MIC1</text>
<text>MIC2</text>
<text>GND</text>
<text>5V</text>
<text>LEFT</text>
<text>RIGHT</text>
<text>Informations at
http://hallard.me
Amplifer V1.0 
</text>
</plain>
<libraries>
<library name="linear">
<description>&lt;b&gt;Linear Devices&lt;/b&gt;&lt;p&gt;
Operational amplifiers,  comparators, voltage regulators, ADCs, DACs, etc.&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="SO08">
<description>&lt;b&gt;Small Outline Package 8&lt;/b&gt;&lt;br&gt;
NS Package M08A</description>
</package>
</packages>
</library>
<library name="dp_devices">
<description>Dangerous Prototypes Standard PCB sizes
http://dangerousprototypes.com</description>
<packages>
<package name="R805">
</package>
<package name="C805">
</package>
</packages>
</library>
<library name="SparkFun-Passives">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="CPOL-RADIAL-10UF-25V">
</package>
<package name="EIA3216">
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="9.7ELECTRET">
</package>
<package name="TC33X">
</package>
<package name="STX3100">
<description>&lt;b&gt;MIC/HEADPHONE JACK&lt;/b&gt;&lt;p&gt;
KS-S stereo microphone/headphone jack&lt;p&gt;
 PG203JN (Schukat)</description>
</package>
</packages>
</library>
<library name="_c2h">
<packages>
<package name="1X04_LOCK">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC1" library="linear" package="SO08" value="NE5532">
<attribute name="VALUE"/>
</element>
<element name="R1" library="dp_devices" package="R805" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="dp_devices" package="R805" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="dp_devices" package="R805" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="dp_devices" package="R805" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="dp_devices" package="R805" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Passives" package="EIA3216" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="SparkFun-Passives" package="EIA3216" value="4.7uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MIC1" library="adafruit" package="9.7ELECTRET" value="Electret">
<attribute name="NAME"/>
</element>
<element name="C3" library="dp_devices" package="C805" value="47pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C8" library="dp_devices" package="C805" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="SparkFun-Passives" package="CPOL-RADIAL-10UF-25V" value="100uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="P1" library="adafruit" package="TC33X" value="200K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="dp_devices" package="R805" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="dp_devices" package="R805" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="dp_devices" package="R805" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="dp_devices" package="R805" value="1K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R10" library="dp_devices" package="R805" value="10K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="SparkFun-Passives" package="EIA3216" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="SparkFun-Passives" package="EIA3216" value="4.7uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MIC2" library="adafruit" package="9.7ELECTRET" value="Electret">
<attribute name="NAME"/>
</element>
<element name="C6" library="dp_devices" package="C805" value="47pF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="P2" library="adafruit" package="TC33X" value="200K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J1" library="_c2h" package="1X04_LOCK" value="Analog"/>
<element name="X1" library="adafruit" package="STX3100" value="STEREOJACK">
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="N$1">
<contactref element="IC1" pad="3"/>
<contactref element="R1" pad="1"/>
<contactref element="R2" pad="2"/>
<contactref element="C2" pad="A"/>
</signal>
<signal name="N$2">
<contactref element="R3" pad="1"/>
<contactref element="C1" pad="A"/>
</signal>
<signal name="GND">
<contactref element="C8" pad="1"/>
<contactref element="C7" pad="2"/>
<contactref element="IC1" pad="4"/>
<contactref element="R2" pad="1"/>
<contactref element="C1" pad="C"/>
<contactref element="MIC1" pad="-"/>
<contactref element="R7" pad="1"/>
<contactref element="C4" pad="C"/>
<contactref element="MIC2" pad="-"/>
<contactref element="J1" pad="4"/>
<contactref element="X1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="R4" pad="1"/>
<contactref element="R3" pad="2"/>
<contactref element="C3" pad="1"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="LEFT">
<contactref element="C2" pad="C"/>
<contactref element="R5" pad="1"/>
<contactref element="MIC1" pad="+"/>
<contactref element="X1" pad="2"/>
</signal>
<signal name="+5V">
<contactref element="IC1" pad="8"/>
<contactref element="C7" pad="1"/>
<contactref element="C8" pad="2"/>
<contactref element="R1" pad="2"/>
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="R10" pad="2"/>
<contactref element="J1" pad="1"/>
</signal>
<signal name="LEFT-AIN">
<contactref element="C3" pad="2"/>
<contactref element="IC1" pad="1"/>
<contactref element="P1" pad="3"/>
<contactref element="P1" pad="2"/>
<contactref element="J1" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="P1" pad="1"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="R6" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="C5" pad="A"/>
<contactref element="IC1" pad="5"/>
</signal>
<signal name="N$8">
<contactref element="R8" pad="1"/>
<contactref element="C4" pad="A"/>
</signal>
<signal name="N$9">
<contactref element="R9" pad="1"/>
<contactref element="R8" pad="2"/>
<contactref element="C6" pad="1"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="RIGHT">
<contactref element="C5" pad="C"/>
<contactref element="R10" pad="1"/>
<contactref element="MIC2" pad="+"/>
<contactref element="X1" pad="5"/>
</signal>
<signal name="RIGHT-AIN">
<contactref element="C6" pad="2"/>
<contactref element="P2" pad="3"/>
<contactref element="P2" pad="2"/>
<contactref element="IC1" pad="7"/>
<contactref element="J1" pad="3"/>
</signal>
<signal name="N$12">
<contactref element="P2" pad="1"/>
<contactref element="R9" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
