<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.3">
<drawing>
<board>
<plain>
<wire x1="27.94" y1="0" x2="15.24" y2="0" width="0" layer="20"/>
<wire x1="15.24" y1="0" x2="15.24" y2="5.08" width="0" layer="20"/>
<wire x1="15.24" y1="5.08" x2="0" y2="5.08" width="0" layer="20"/>
<wire x1="0" y1="31.75" x2="11.43" y2="31.75" width="0" layer="20"/>
<wire x1="11.43" y1="31.75" x2="11.43" y2="36.83" width="0" layer="20"/>
<wire x1="11.43" y1="36.83" x2="31.75" y2="36.83" width="0" layer="20"/>
<wire x1="31.75" y1="36.83" x2="31.75" y2="31.75" width="0" layer="20"/>
<wire x1="31.75" y1="31.75" x2="43.18" y2="31.75" width="0" layer="20"/>
<wire x1="43.18" y1="31.75" x2="43.18" y2="5.08" width="0" layer="20"/>
<wire x1="43.18" y1="5.08" x2="27.94" y2="5.08" width="0" layer="20"/>
<wire x1="27.94" y1="5.08" x2="27.94" y2="0" width="0" layer="20"/>
<wire x1="0" y1="31.75" x2="0" y2="5.08" width="0" layer="20"/>
<text>RETURN</text>
<text>SEND</text>
<text>GND</text>
<text>I</text>
<text>9</text>
<text>G</text>
<text>O</text>
<text>9V</text>
<text>MIX</text>
<text>C5</text>
<text>C8</text>
<text>C2</text>
<text>C6</text>
<text>C7</text>
<text>25kB</text>
<text>SPLITTER BLEND</text>
</plain>
<libraries>
<library name="gm-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="R0207/3">
<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: 3 holes

&lt;p&gt;This length resistor applies to 1/4 watt metal film.</description>
</package>
</packages>
</library>
<library name="gm-caps-film-box">
<description>&lt;b&gt;Capacitors, Film, Box&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;1000pF - 2.2uF  (uF = µF = mF)
&lt;li&gt;popular nonpolarized capacitors because they are small
&lt;li&gt;these have short leads so that pad spacing equals lead spacing
&lt;li&gt;e.g., WIMA capacitors
&lt;/ul&gt;</description>
<packages>
<package name="072X035">
<description>&lt;b&gt;7.2mm x 3.5mm&lt;/b&gt;
&lt;p&gt;WIMA MKP2, MKS2</description>
</package>
</packages>
</library>
<library name="gm-caps-electro-pol">
<description>&lt;b&gt;Capacitors, Polar Electrolytic, Radial &lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;large value capacitors: .22 - 470uF (uF = µF = mF)
&lt;li&gt;often used in power supply filters
&lt;/ul&gt;</description>
<packages>
<package name="050_020_1">
<description>&lt;b&gt;5mm diameter, 2mm lead spacing, 0.1" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="gm-ics">
<description>&lt;b&gt;Integrated Circuits&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;mostly op amps (e.g., 4558, TL072)&lt;/li&gt;
&lt;li&gt;also CD4049 (for Anderton's Tube Sound Fuzz, the Red Llama, ...)
&lt;li&gt;generally gathered from Eagle libraries
&lt;/ul&gt;</description>
<packages>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="gm-supply">
<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="SQUARE">
<description>&lt;b&gt;Square 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>
<library name="gm-diodes">
<description>&lt;b&gt;Diodes&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;Zener 1N47xx (as in protection for the MOSFET in the AMZ MOSFET Booster)
&lt;li&gt;rectifier 1N4001-1N4008 (for polarity reversal protection in power supply sections)
&lt;li&gt;clipping 1N914 (as in a TS808)
&lt;li&gt;LED (light emitting diode, 3mm and 5mm)
&lt;li&gt;mostly gathered from Eagle libraries
&lt;/ul&gt;</description>
<packages>
<package name="DO41-3">
<description>&lt;b&gt;DO-41 0.3" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="mb-switches">
<description>&lt;b&gt;Switches&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;SPST, SPDT, DPDT, 3PDT
&lt;/ul&gt;</description>
<packages>
<package name="SPST">
</package>
</packages>
</library>
<library name="mb-potentiometers">
<packages>
<package name="16MM_CENTERMOUNT">
</package>
</packages>
</library>
<library name="CPLOGO">
<packages>
<package name="CPLOGOFONT">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="R1" library="gm-resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="gm-resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="gm-resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="gm-resistors" package="R0207/3" value="220k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="gm-resistors" package="R0207/3" value="220k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="gm-resistors" package="R0207/3" value="220k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="gm-resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="gm-resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="gm-resistors" package="R0207/3" value="33k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R10" library="gm-resistors" package="R0207/3" value="33k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="gm-caps-film-box" package="072X035" value="220nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="gm-caps-electro-pol" package="050_020_1" value="10uF">
<attribute name="VALUE"/>
</element>
<element name="C3" library="gm-caps-film-box" package="072X035" value="220nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="gm-caps-film-box" package="072X035" value="220nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="gm-caps-electro-pol" package="050_020_1" value="10uF">
<attribute name="VALUE"/>
</element>
<element name="C6" library="gm-caps-electro-pol" package="050_020_1" value="10uF">
<attribute name="VALUE"/>
</element>
<element name="C7" library="gm-caps-electro-pol" package="050_020_1" value="22uF">
<attribute name="VALUE"/>
</element>
<element name="C8" library="gm-caps-electro-pol" package="050_020_1" value="100uF">
<attribute name="VALUE"/>
</element>
<element name="IC1" library="gm-ics" package="DIL14" value="TL074P">
<attribute name="VALUE"/>
</element>
<element name="+9V2" library="gm-supply" package="SQUARE" value="+9V(T)"/>
<element name="GND5" library="gm-supply" package="SQUARE" value="GND(T)"/>
<element name="GND6" library="gm-supply" package="SQUARE" value="GND(T)"/>
<element name="IN1" library="gm-supply" package="SQUARE" value="IN(T)"/>
<element name="OUT1" library="gm-supply" package="SQUARE" value="OUT(T)"/>
<element name="D1" library="gm-diodes" package="DO41-3" value="4001">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SEND" library="gm-supply" package="SQUARE" value="SEND"/>
<element name="RETURN" library="gm-supply" package="SQUARE" value="RETURN"/>
<element name="SW1" library="mb-switches" package="SPST" value="SPST"/>
<element name="MIX" library="mb-potentiometers" package="16MM_CENTERMOUNT" value="25kB"/>
<element name="+9V1" library="gm-supply" package="SQUARE" value="+9V(T)"/>
<element name="U$1" library="CPLOGO" package="CPLOGOFONT" value=""/>
</elements>
<signals>
<signal name="IN">
<contactref element="IN1" pad="1"/>
<contactref element="C1" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="IC1" pad="1"/>
<contactref element="C5" pad="+"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="N$2">
<contactref element="C1" pad="2"/>
<contactref element="IC1" pad="3"/>
<contactref element="IC1" pad="5"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="IC1" pad="6"/>
<contactref element="IC1" pad="7"/>
<contactref element="C2" pad="+"/>
</signal>
<signal name="N$4">
<contactref element="SEND" pad="1"/>
<contactref element="C2" pad="-"/>
<contactref element="R2" pad="2"/>
</signal>
<signal name="GND">
<contactref element="R2" pad="1"/>
<contactref element="C7" pad="-"/>
<contactref element="R10" pad="1"/>
<contactref element="C8" pad="-"/>
<contactref element="D1" pad="A"/>
<contactref element="GND6" pad="1"/>
<contactref element="GND5" pad="1"/>
<contactref element="IC1" pad="11"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="VB">
<contactref element="R1" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="SW1" pad="1"/>
<contactref element="R7" pad="2"/>
<contactref element="R9" pad="1"/>
<contactref element="R10" pad="2"/>
<contactref element="C7" pad="+"/>
</signal>
<signal name="N$5">
<contactref element="IC1" pad="10"/>
<contactref element="C3" pad="2"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="IC1" pad="9"/>
<contactref element="IC1" pad="8"/>
<contactref element="C4" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="C4" pad="2"/>
<contactref element="R4" pad="1"/>
<contactref element="R5" pad="1"/>
<contactref element="R7" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="R4" pad="2"/>
<contactref element="IC1" pad="12"/>
<contactref element="SW1" pad="2"/>
</signal>
<signal name="N$10">
<contactref element="R5" pad="2"/>
<contactref element="R6" pad="1"/>
<contactref element="IC1" pad="13"/>
</signal>
<signal name="N$11">
<contactref element="R6" pad="2"/>
<contactref element="IC1" pad="14"/>
<contactref element="C6" pad="+"/>
</signal>
<signal name="N$12">
<contactref element="C6" pad="-"/>
<contactref element="MIX" pad="3"/>
</signal>
<signal name="OUT">
<contactref element="MIX" pad="2"/>
<contactref element="OUT1" pad="1"/>
<contactref element="R8" pad="2"/>
</signal>
<signal name="N$13">
<contactref element="C5" pad="-"/>
<contactref element="MIX" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="C3" pad="1"/>
<contactref element="RETURN" pad="1"/>
</signal>
<signal name="+9V">
<contactref element="+9V2" pad="1"/>
<contactref element="D1" pad="C"/>
<contactref element="C8" pad="+"/>
<contactref element="R9" pad="2"/>
<contactref element="IC1" pad="4"/>
<contactref element="+9V1" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
