<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="8.1.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="29.515" y2="0" width="0" layer="20"/>
<wire x1="29.515" y1="0" x2="29.515" y2="21.58" width="0" layer="20"/>
<wire x1="29.515" y1="21.58" x2="0" y2="21.58" width="0" layer="20"/>
<wire x1="0" y1="21.58" x2="0" y2="0" width="0" layer="20"/>
</plain>
<libraries>
<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="DO35-3">
<description>&lt;B&gt;DO-35 0.3" spacing&lt;/B&gt;</description>
</package>
</packages>
</library>
<library name="transistor-power">
<description>&lt;b&gt;Power Transistors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="TO220BV">
<description>&lt;b&gt;Molded Package&lt;/b&gt;&lt;p&gt;
grid 2.54 mm</description>
</package>
</packages>
</library>
<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-pots">
<description>&lt;b&gt;Potentiometers&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;chassis-mount (e.g., Alpha 16mm) pots&lt;/li&gt;
&lt;li&gt;board-mount trim pots (1/4" and 3/8")&lt;/li&gt;
&lt;li&gt; all pot values have the same size package; you choose the value of resistance 
&lt;/ul&gt;</description>
<packages>
<package name="POT">
<description>&lt;b&gt;Potentiometer&lt;/b&gt;
&lt;p&gt;3 terminals for circuit board for wires connecting to 3 lugs of pot off-board</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="072X025">
<description>&lt;b&gt;7.2mm x 2.5mm&lt;/b&gt;
&lt;p&gt;WIMA MKS2, MKP2</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">
<description>&lt;b&gt;5mm diameter, 2mm lead spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="gm-caps-ceramic">
<description>&lt;b&gt;Capacitors, Ceramic&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;very small capacitances: 1 - 1000pF
&lt;/ul&gt;</description>
<packages>
<package name="050X030_025">
<description>&lt;b&gt;5mm x 3mm, 2.5mm lead spacing
&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="+" library="gm-supply" package="SQUARE" value="+9V(T)"/>
<element name="C1" library="gm-caps-film-box" package="072X025" value="22n">
<attribute name="NAME"/>
</element>
<element name="C2" library="gm-caps-film-box" package="072X025" value="22n">
<attribute name="NAME"/>
</element>
<element name="C3" library="gm-caps-film-box" package="072X025" value="100n">
<attribute name="NAME"/>
</element>
<element name="D1" library="gm-diodes" package="DO35-3" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D2" library="gm-diodes" package="DO35-3" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="GND" library="gm-supply" package="SQUARE" value="GND(T)"/>
<element name="I" library="gm-supply" package="SQUARE" value="IN(T)"/>
<element name="O" library="gm-supply" package="SQUARE" value="OUT(T)"/>
<element name="Q1" library="transistor-power" package="TO220BV" value="IPI22N03S4L-15">
<attribute name="NAME"/>
</element>
<element name="Q2" library="transistor-power" package="TO220BV" value="IPI22N03S4L-15">
<attribute name="NAME"/>
</element>
<element name="R1" library="gm-resistors" package="R0207/3" value="4M7">
<attribute name="NAME"/>
</element>
<element name="R2" library="gm-resistors" package="R0207/3" value="4M7">
<attribute name="NAME"/>
</element>
<element name="R3" library="gm-resistors" package="R0207/3" value="100k (+?)">
<attribute name="NAME"/>
</element>
<element name="R4" library="gm-resistors" package="R0207/3" value="4M7">
<attribute name="NAME"/>
</element>
<element name="R5" library="gm-resistors" package="R0207/3" value="4M7">
<attribute name="NAME"/>
</element>
<element name="R6" library="gm-resistors" package="R0207/3" value="100k">
<attribute name="NAME"/>
</element>
<element name="VOL" library="gm-pots" package="POT" value="100K A">
<attribute name="NAME"/>
</element>
<element name="C4" library="gm-caps-electro-pol" package="050_020" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="gm-resistors" package="R0207/3" value="200">
<attribute name="NAME"/>
</element>
<element name="C5" library="gm-caps-film-box" package="072X025" value="22n - 100n">
<attribute name="NAME"/>
</element>
<element name="GAIN" library="gm-pots" package="POT" value="500K A">
<attribute name="NAME"/>
</element>
<element name="C6" library="gm-caps-ceramic" package="050X030_025" value="470p">
<attribute name="NAME"/>
</element>
<element name="C7" library="gm-caps-ceramic" package="050X030_025" value="470p">
<attribute name="NAME"/>
</element>
</elements>
<signals>
<signal name="N$1">
<contactref element="D1" pad="C"/>
<contactref element="D2" pad="C"/>
</signal>
<signal name="N$2">
<contactref element="Q1" pad="D"/>
<contactref element="R2" pad="2"/>
<contactref element="C2" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="C7" pad="2"/>
</signal>
<signal name="GND">
<contactref element="D2" pad="A"/>
<contactref element="R1" pad="2"/>
<contactref element="Q1" pad="S"/>
<contactref element="GND" pad="1"/>
<contactref element="R4" pad="2"/>
<contactref element="VOL" pad="1"/>
<contactref element="C4" pad="-"/>
<contactref element="R7" pad="1"/>
<contactref element="GAIN" pad="1"/>
<contactref element="C7" pad="1"/>
</signal>
<signal name="+9V">
<contactref element="+" pad="1"/>
<contactref element="R3" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="C4" pad="+"/>
</signal>
<signal name="N$5">
<contactref element="R6" pad="1"/>
<contactref element="Q2" pad="D"/>
<contactref element="R5" pad="2"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="Q2" pad="S"/>
<contactref element="R7" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="D1" pad="A"/>
<contactref element="C1" pad="2"/>
<contactref element="R1" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="Q1" pad="G"/>
</signal>
<signal name="IN">
<contactref element="I" pad="1"/>
<contactref element="C1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="C3" pad="2"/>
<contactref element="VOL" pad="3"/>
</signal>
<signal name="OUT">
<contactref element="VOL" pad="2"/>
<contactref element="O" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="R5" pad="1"/>
<contactref element="R4" pad="1"/>
<contactref element="Q2" pad="G"/>
<contactref element="C5" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="C2" pad="2"/>
<contactref element="GAIN" pad="3"/>
<contactref element="C6" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="GAIN" pad="2"/>
<contactref element="C5" pad="1"/>
<contactref element="C6" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
