<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.4.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="-2.54" x2="49.2" y2="-2.54" width="0" layer="20"/>
<wire x1="49.2" y1="-2.54" x2="49.2" y2="29.2" width="0" layer="20"/>
<wire x1="49.2" y1="29.2" x2="0" y2="29.2" width="0" layer="20"/>
<wire x1="0" y1="29.2" x2="0" y2="-2.54" width="0" layer="20"/>
</plain>
<libraries>
<library name="rcl">
<packages>
<package name="C050-024X044">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 5 mm, outline 2.4 x 4.4 mm</description>
</package>
<package name="E3,5-8">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 3.5 mm, diameter 8 mm</description>
</package>
<package name="0204/7">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0204, grid 7.5 mm</description>
</package>
<package name="RTRIM3339P">
<description>&lt;b&gt;Trimm resistor&lt;/b&gt; BOURNS&lt;p&gt;
Cermet MIL-R-22097</description>
</package>
</packages>
</library>
<library name="linear">
<packages>
<package name="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="buzzer">
<packages>
<package name="AL11P">
<description>&lt;b&gt;SPEAKER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="opto-trans-siemens">
<packages>
<package name="SFH303">
<description>&lt;b&gt;Silicon NPN Phototransistor&lt;/b&gt;&lt;p&gt;
Source: Siemens</description>
</package>
</packages>
</library>
<library name="con-molex">
<packages>
<package name="22-23-2021">
<description>.100" (2.54mm) Center Headers - 2 Pin</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="R2" library="rcl" package="0204/7" value="1K"/>
<element name="R1" library="rcl" package="0204/7" value="10K"/>
<element name="R3" library="rcl" package="RTRIM3339P" value="50K"/>
<element name="C1" library="rcl" package="C050-024X044" value="10 nf"/>
<element name="C2" library="rcl" package="E3,5-8" value="10uF"/>
<element name="C3" library="rcl" package="E3,5-8" value="470uF"/>
<element name="IC1" library="linear" package="DIL08" value="LM386N-1"/>
<element name="SP1" library="buzzer" package="AL11P" value="AL11P">
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="T1" library="opto-trans-siemens" package="SFH303" value="SFH303">
<attribute name="MF" value=""/>
<attribute name="MPN" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
<attribute name="OC_NEWARK" value="unknown"/>
</element>
<element name="VCC" library="con-molex" package="22-23-2021" value="22-23-2021">
<attribute name="MF" value="MOLEX"/>
<attribute name="MPN" value="22-23-2021"/>
<attribute name="OC_FARNELL" value="1462926"/>
<attribute name="OC_NEWARK" value="25C3832"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="N$1">
<contactref element="C1" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="T1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="R3" pad="1"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="R3" pad="2"/>
<contactref element="IC1" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="IC1" pad="1"/>
<contactref element="C2" pad="+"/>
</signal>
<signal name="N$6">
<contactref element="C2" pad="-"/>
<contactref element="IC1" pad="8"/>
</signal>
<signal name="N$7">
<contactref element="IC1" pad="5"/>
<contactref element="C3" pad="+"/>
</signal>
<signal name="N$8">
<contactref element="C3" pad="-"/>
<contactref element="SP1" pad="+"/>
</signal>
<signal name="N$4">
<contactref element="R2" pad="1"/>
<contactref element="C1" pad="2"/>
</signal>
<signal name="N$12">
<contactref element="IC1" pad="6"/>
<contactref element="T1" pad="2"/>
<contactref element="VCC" pad="1"/>
</signal>
<signal name="GND">
<contactref element="IC1" pad="4"/>
<contactref element="R1" pad="1"/>
<contactref element="IC1" pad="2"/>
<contactref element="VCC" pad="2"/>
<contactref element="SP1" pad="-"/>
<contactref element="R3" pad="3"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
