<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.4">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="88.57" y2="0" width="0" layer="20"/>
<wire x1="88.57" y1="0" x2="88.57" y2="50.79" width="0" layer="20"/>
<wire x1="88.57" y1="50.79" x2="0" y2="50.79" width="0" layer="20"/>
<wire x1="0" y1="50.79" x2="0" y2="0" width="0" layer="20"/>
<text>Earassistable</text>
</plain>
<libraries>
<library name="caleb-passive">
<packages>
<package name="R0400TH">
</package>
<package name="CDX5">
</package>
<package name="C5X2">
</package>
<package name="4544PF">
</package>
</packages>
</library>
<library name="transistor-pnp">
<description>&lt;b&gt;PNP Transistors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO92-EBC">
<description>&lt;b&gt;TO-92&lt;/b&gt;&lt;p&gt;
grid 5.08 mm</description>
</package>
</packages>
</library>
<library name="transistor-npn">
<description>&lt;b&gt;NPN Transistors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO92">
<description>&lt;b&gt;TO 92&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="caleb-con-OST-termblock">
<packages>
<package name="3523N">
</package>
<package name="BCAA">
</package>
<package name="P04002">
</package>
</packages>
</library>
<library name="led">
<description>&lt;b&gt;LEDs&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;&lt;br&gt;
Extended by Federico Battaglin &lt;author&gt;&amp;lt;federico.rd@fdpinternational.com&amp;gt;&lt;/author&gt; with DUOLED</description>
<packages>
<package name="LED5MM">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
5 mm, round</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="R1" library="caleb-passive" package="R0400TH" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="caleb-passive" package="R0400TH" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="caleb-passive" package="R0400TH" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="caleb-passive" package="R0400TH" value="66.5k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="caleb-passive" package="R0400TH" value="100">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="caleb-passive" package="R0400TH" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="caleb-passive" package="R0400TH" value="470k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="caleb-passive" package="R0400TH" value="220k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="caleb-passive" package="R0400TH" value="10k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R10" library="caleb-passive" package="R0400TH" value="27">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="caleb-passive" package="CDX5" value="100n">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="C2" library="caleb-passive" package="CDX5" value="220n">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="C3" library="caleb-passive" package="CDX5" value="50n">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="C4" library="caleb-passive" package="C5X2" value="47u">
<attribute name="VALUE"/>
<attribute name="NAME"/>
</element>
<element name="Q1" library="transistor-pnp" package="TO92-EBC" value="BC557">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q2" library="transistor-npn" package="TO92" value="BC547">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q3" library="transistor-npn" package="TO92" value="BC547">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q4" library="transistor-npn" package="TO92" value="BC547B">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q5" library="transistor-npn" package="TO92" value="BC237">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="J1" library="caleb-con-OST-termblock" package="3523N" value="JACK-STEREO-3523N">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="M1" library="caleb-passive" package="4544PF" value="MICROPHONE-CONDENSER-4544PF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="B1" library="caleb-con-OST-termblock" package="BCAA" value="BATT-2PIN-BCAAPC">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="B2" library="caleb-con-OST-termblock" package="BCAA" value="BATT-2PIN-BCAAPC">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="S1" library="caleb-con-OST-termblock" package="P04002" value="SPDT">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R11" library="caleb-passive" package="R0400TH" value="470">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LED1" library="led" package="LED5MM" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="N$1">
<contactref element="Q3" pad="1"/>
<contactref element="R10" pad="2"/>
<contactref element="C4" pad="POS"/>
<contactref element="R9" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="Q2" pad="1"/>
<contactref element="R9" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="Q1" pad="B"/>
<contactref element="Q2" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="Q1" pad="C"/>
<contactref element="Q3" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="R7" pad="1"/>
<contactref element="R8" pad="2"/>
<contactref element="Q2" pad="2"/>
<contactref element="C3" pad="P$2"/>
</signal>
<signal name="N$7">
<contactref element="R3" pad="1"/>
<contactref element="Q4" pad="3"/>
<contactref element="C3" pad="P$1"/>
<contactref element="R6" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="Q4" pad="2"/>
<contactref element="C2" pad="P$2"/>
<contactref element="R6" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="Q5" pad="2"/>
<contactref element="C1" pad="P$2"/>
<contactref element="R4" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="Q5" pad="1"/>
<contactref element="R5" pad="2"/>
</signal>
<signal name="N$11">
<contactref element="R2" pad="1"/>
<contactref element="Q5" pad="3"/>
<contactref element="C2" pad="P$1"/>
</signal>
<signal name="N$12">
<contactref element="C1" pad="P$1"/>
<contactref element="R1" pad="1"/>
<contactref element="M1" pad="T1"/>
</signal>
<signal name="VCC">
<contactref element="R1" pad="2"/>
<contactref element="Q1" pad="E"/>
<contactref element="R7" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="J1" pad="2"/>
<contactref element="S1" pad="3"/>
<contactref element="R11" pad="2"/>
</signal>
<signal name="GND">
<contactref element="R5" pad="1"/>
<contactref element="C4" pad="NEG"/>
<contactref element="R10" pad="1"/>
<contactref element="R8" pad="1"/>
<contactref element="Q4" pad="1"/>
<contactref element="M1" pad="T2"/>
<contactref element="B2" pad="NEG"/>
<contactref element="LED1" pad="K"/>
</signal>
<signal name="N$15">
<contactref element="Q3" pad="3"/>
<contactref element="J1" pad="1"/>
</signal>
<signal name="N$13">
</signal>
<signal name="N$14">
</signal>
<signal name="N$2">
<contactref element="B2" pad="POS"/>
<contactref element="B1" pad="NEG"/>
</signal>
<signal name="N$16">
<contactref element="B1" pad="POS"/>
<contactref element="S1" pad="2"/>
<contactref element="S1" pad="1"/>
</signal>
<signal name="N$17">
<contactref element="LED1" pad="A"/>
<contactref element="R11" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
