<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.3">
<drawing>
<board>
<plain>
<wire x1="-1.27" y1="2.54" x2="82.53" y2="2.54" width="0" layer="20"/>
<wire x1="82.53" y1="2.54" x2="82.53" y2="53.01" width="0" layer="20"/>
<wire x1="82.53" y1="53.01" x2="-1.27" y2="53.01" width="0" layer="20"/>
<wire x1="-1.27" y1="53.01" x2="-1.27" y2="2.54" width="0" layer="20"/>
</plain>
<libraries>
<library name="transistors">
<packages>
<package name="SOT54ES">
</package>
</packages>
</library>
<library name="resistors">
<description>&lt;b&gt;Resistors&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;6mm long -- the size of 1/4 watt resistors
&lt;li&gt; all resistor values have the same size package; you choose the value of resistance 
&lt;/ul&gt;</description>
<packages>
<package name="1W">
</package>
<package name="R0207/5">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;br&gt;
&lt;br&gt;
length: 6mm&lt;br&gt;
format: 0.1" (perfboard)&lt;br&gt;
spacing: 5 holes

&lt;p&gt;This length resistor applies to 1/4 watt metal film.</description>
</package>
</packages>
</library>
<library name="capacitor-wima">
<description>&lt;b&gt;WIMA Capacitors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="C22.5B11">
<description>&lt;B&gt;MKS4&lt;/B&gt;, 27 x 11 mm, grid 22.5 mm</description>
</package>
<package name="C22.5B8">
<description>&lt;B&gt;MKS4&lt;/B&gt;, 27 x 8 mm, grid 22.5 mm</description>
</package>
<package name="C15B5">
<description>&lt;B&gt;MKS4&lt;/B&gt;, 18 x 5 mm, grid 15 mm</description>
</package>
</packages>
</library>
<library name="capacitors-film">
<packages>
<package name="050X030_025_3">
<description>&lt;b&gt;5mm x 3mm, 0.3" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="potentiometers">
<packages>
<package name="2262_TRIM">
<description>&lt;b&gt;Potentiometer&lt;/b&gt;&lt;p&gt;
1/4" on-board trim potentiometer</description>
</package>
</packages>
</library>
<library name="jacks">
<packages>
<package name="NMJ6HCD2">
</package>
</packages>
</library>
<library name="diodes">
<packages>
<package name="DO41-3">
<description>&lt;b&gt;DO-41 0.3" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="capacitors-elec">
<packages>
<package name="063_025_3">
<description>&lt;b&gt;6.3mm diameter, 2.5mm lead spacing, 0.3" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="supply library-big pads (GM-modified)">
<description>&lt;b&gt;Supply&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;input, output, ground, and power supply.  
&lt;li&gt;these are used on a schematic for placeholders and on a board for pads for off-board components like jacks.
&lt;/ul&gt;</description>
<packages>
<package name="ROUND">
<description>&lt;b&gt;Round Pad&lt;/b&gt;
&lt;ul&gt;&lt;li&gt;drill diameter 0.7 mm&lt;/li&gt;&lt;/ul&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="Q1" library="transistors" package="SOT54ES" value="LND150"/>
<element name="Q2" library="transistors" package="SOT54ES" value="LND150"/>
<element name="R1" library="resistors" package="R0207/5" value="2M2">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="resistors" package="R0207/5" value="100k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="resistors" package="R0207/5" value="220k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="resistors" package="R0207/5" value="1k5">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="resistors" package="R0207/5" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="resistors" package="R0207/5" value="470R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="resistors" package="R0207/5" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R10" library="resistors" package="R0207/5" value="110k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R11" library="resistors" package="1W" value="33k/2w">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="capacitor-wima" package="C15B5" value="100n/250v">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="capacitor-wima" package="C22.5B11" value="470n/400v">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="capacitor-wima" package="C22.5B8" value="330n/250v">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="capacitor-wima" package="C15B5" value="100n/400v">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="capacitors-film" package="050X030_025_3" value="10p"/>
<element name="SEND" library="potentiometers" package="2262_TRIM" value="50k"/>
<element name="SEND_J" library="jacks" package="NMJ6HCD2" value="STEREOSW"/>
<element name="RETURN_J" library="jacks" package="NMJ6HCD2" value="STEREOSW"/>
<element name="D2" library="diodes" package="DO41-3" value="1n4148"/>
<element name="D3" library="diodes" package="DO41-3" value="BZX79 C12"/>
<element name="D4" library="diodes" package="DO41-3" value="BZX79 C12"/>
<element name="C6" library="capacitors-elec" package="063_025_3" value="22uF"/>
<element name="RETURN" library="potentiometers" package="2262_TRIM" value="A1M"/>
<element name="R4" library="resistors" package="R0207/5" value="10R"/>
<element name="B+" library="supply library-big pads (GM-modified)" package="ROUND" value=""/>
<element name="OUT" library="supply library-big pads (GM-modified)" package="ROUND" value=""/>
<element name="IN" library="supply library-big pads (GM-modified)" package="ROUND" value=""/>
<element name="G1" library="supply library-big pads (GM-modified)" package="ROUND" value=""/>
<element name="G2" library="supply library-big pads (GM-modified)" package="ROUND" value=""/>
<element name="G3" library="supply library-big pads (GM-modified)" package="ROUND" value=""/>
</elements>
<signals>
<signal name="N$2">
<contactref element="C1" pad="2"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="Q1" pad="D"/>
<contactref element="R2" pad="1"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="SEND" pad="3"/>
<contactref element="C3" pad="1"/>
<contactref element="Q1" pad="G"/>
<contactref element="R1" pad="1"/>
<contactref element="SEND" pad="2"/>
</signal>
<signal name="GND">
<contactref element="R3" pad="1"/>
<contactref element="RETURN_J" pad="S"/>
<contactref element="D2" pad="C"/>
<contactref element="C6" pad="-"/>
<contactref element="R9" pad="1"/>
<contactref element="RETURN" pad="3"/>
<contactref element="R4" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="G1" pad="1"/>
<contactref element="G2" pad="1"/>
<contactref element="G3" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="RETURN_J" pad="T"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="C4" pad="2"/>
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="R5" pad="1"/>
<contactref element="Q2" pad="G"/>
<contactref element="D3" pad="C"/>
</signal>
<signal name="N$11">
<contactref element="Q2" pad="S"/>
<contactref element="R7" pad="2"/>
<contactref element="D4" pad="C"/>
</signal>
<signal name="N$14">
<contactref element="Q2" pad="D"/>
<contactref element="C5" pad="1"/>
<contactref element="R10" pad="1"/>
</signal>
<signal name="N$15">
<contactref element="C5" pad="2"/>
<contactref element="R9" pad="2"/>
<contactref element="RETURN" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="R10" pad="2"/>
<contactref element="R11" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="C6" pad="+"/>
</signal>
<signal name="N$18">
<contactref element="D3" pad="A"/>
<contactref element="D4" pad="A"/>
</signal>
<signal name="N$13">
<contactref element="R11" pad="1"/>
<contactref element="B+" pad="1"/>
</signal>
<signal name="N$19">
<contactref element="C2" pad="2"/>
<contactref element="SEND" pad="1"/>
<contactref element="R3" pad="2"/>
<contactref element="SEND_J" pad="T"/>
<contactref element="C3" pad="2"/>
<contactref element="RETURN_J" pad="TN"/>
</signal>
<signal name="N$1">
<contactref element="SEND_J" pad="S"/>
<contactref element="R4" pad="2"/>
</signal>
<signal name="N$3">
<contactref element="Q1" pad="S"/>
<contactref element="D2" pad="A"/>
</signal>
<signal name="N$5">
<contactref element="RETURN" pad="2"/>
<contactref element="OUT" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="C1" pad="1"/>
<contactref element="IN" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
