<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.7.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="58.4075" y2="0" width="0" layer="20"/>
<wire x1="58.4075" y1="0" x2="58.4075" y2="56.1875" width="0" layer="20"/>
<wire x1="58.4075" y1="56.1875" x2="0" y2="56.1875" width="0" layer="20"/>
<wire x1="0" y1="56.1875" x2="0" y2="0" width="0" layer="20"/>
<text>ENGINEER'S
THUMB</text>
<text>pcb by storyboardist</text>
</plain>
<libraries>
<library name="potentiometers">
<packages>
<package name="16MM_CENTERMOUNT">
</package>
</packages>
</library>
<library name="capacitors-film">
<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_2">
<description>&lt;b&gt;5mm x 3mm, 0.2" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="capacitors-elec">
<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>
<package name="063_025">
<description>&lt;b&gt;6.3mm diameter, 2.5 mm lead spacing, 0.1" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="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="LED3MM">
<description>&lt;B&gt;LED&lt;/B&gt;&lt;p&gt;
3 mm, round</description>
</package>
<package name="DO35-3">
<description>&lt;B&gt;DO-35 0.3" spacing&lt;/B&gt;</description>
</package>
<package name="DO41-3">
<description>&lt;b&gt;DO-41 0.3" pad spacing&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="supply pins">
<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="integrated circuits">
<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="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="DIL16">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="transistors">
<description>&lt;b&gt;Transistors&lt;/b&gt;
&lt;ul&gt;
&lt;li&gt;small signal amps (e.g., 2N508x)
&lt;li&gt;switching transistors (e.g., 2N2222, 2N390x)
&lt;li&gt;JFETs (e.g., J201, 2N3819, 2N5457)
&lt;li&gt;MOSFETs (e.g., BS170, BS250)
&lt;li&gt;mostly copied from Eagle libraries
&lt;/ul&gt;</description>
<packages>
<package name="TO92-">
</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="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="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="EF_Logo">
<packages>
<package name="EF_LOGO">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="ATTACK" library="potentiometers" package="16MM_CENTERMOUNT" value="B100k">
<attribute name="NAME"/>
</element>
<element name="C1" library="capacitors-film" package="050X030_025_2" value="10n"/>
<element name="C2" library="capacitors-film" package="050X030_025_2" value="100p"/>
<element name="C3" library="capacitors-elec" package="050_020_1" value="1µ"/>
<element name="C4" library="capacitors-elec" package="050_020_1" value="1µ"/>
<element name="C5" library="capacitors-film" package="050X030_025_2" value="4.7n"/>
<element name="C6" library="capacitors-elec" package="050_020_1" value="10µ"/>
<element name="C7" library="capacitors-elec" package="050_020_1" value="10µ"/>
<element name="C8" library="capacitors-elec" package="063_025" value="100µ"/>
<element name="D1" library="diodes" package="LED3MM" value="LED3MM">
<attribute name="NAME"/>
</element>
<element name="D2" library="diodes" package="LED3MM" value="LED3MM">
<attribute name="NAME"/>
</element>
<element name="D3" library="diodes" package="DO35-3" value=""/>
<element name="D4" library="diodes" package="DO35-3" value=""/>
<element name="D5" library="diodes" package="DO35-3" value=""/>
<element name="D6" library="diodes" package="DO41-3" value="1N4001"/>
<element name="GND" library="supply pins" package="SQUARE" value="GND_PAD"/>
<element name="-" library="supply pins" package="SQUARE" value="GND_PAD">
<attribute name="NAME"/>
</element>
<element name="IC1" library="integrated circuits" package="DIL08" value=""/>
<element name="IC2" library="integrated circuits" package="DIL08" value=""/>
<element name="IC3" library="integrated circuits" package="DIL16" value="LM13700"/>
<element name="IN" library="supply pins" package="SQUARE" value="IN"/>
<element name="LEVEL" library="potentiometers" package="16MM_CENTERMOUNT" value="A10k">
<attribute name="NAME"/>
</element>
<element name="OUT" library="supply pins" package="SQUARE" value="OUT"/>
<element name="Q1" library="transistors" package="TO92-" value="2N3906-"/>
<element name="R1" library="resistors" package="R0207/3" value="10M"/>
<element name="R10" library="resistors" package="R0207/3" value="10k"/>
<element name="R11" library="resistors" package="R0207/3" value="1k"/>
<element name="R12" library="resistors" package="R0207/3" value="1M"/>
<element name="R13" library="resistors" package="R0207/3" value="1M"/>
<element name="R2" library="resistors" package="R0207/3" value="1k"/>
<element name="R3" library="resistors" package="R0207/3" value="1k"/>
<element name="R4" library="resistors" package="R0207/3" value="1k"/>
<element name="R5" library="resistors" package="R0207/3" value="1k"/>
<element name="R6" library="resistors" package="R0207/3" value="1M"/>
<element name="R7" library="resistors" package="R0207/3" value="10k"/>
<element name="R8" library="resistors" package="R0207/3" value="10n"/>
<element name="R9" library="resistors" package="R0207/3" value="220Ω"/>
<element name="RATIO" library="potentiometers" package="16MM_CENTERMOUNT" value="A1M">
<attribute name="NAME"/>
</element>
<element name="RELEASE" library="potentiometers" package="16MM_CENTERMOUNT" value="B1M">
<attribute name="NAME"/>
</element>
<element name="BRIGHT" library="switches" package="SPST" value="SPST">
<attribute name="NAME"/>
</element>
<element name="THRESHOLD" library="potentiometers" package="16MM_CENTERMOUNT" value="B1M">
<attribute name="NAME"/>
</element>
<element name="+9V" library="supply pins" package="SQUARE" value="+9V_PAD"/>
<element name="+" library="supply pins" package="SQUARE" value="+9V_PAD">
<attribute name="NAME"/>
</element>
<element name="U$1" library="EF_Logo" package="EF_LOGO" value=""/>
</elements>
<signals>
<signal name="N$2">
<contactref element="R2" pad="1"/>
<contactref element="C1" pad="2"/>
<contactref element="D1" pad="K"/>
<contactref element="D2" pad="A"/>
</signal>
<signal name="N$3">
<contactref element="C1" pad="1"/>
<contactref element="THRESHOLD" pad="1"/>
<contactref element="IC1" pad="3"/>
</signal>
<signal name="N$4">
<contactref element="THRESHOLD" pad="2"/>
<contactref element="IC2" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="C2" pad="1"/>
<contactref element="RATIO" pad="3"/>
<contactref element="R3" pad="2"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="D3" pad="C"/>
<contactref element="RELEASE" pad="1"/>
<contactref element="RELEASE" pad="2"/>
<contactref element="IC2" pad="2"/>
</signal>
<signal name="N$9">
<contactref element="D3" pad="A"/>
<contactref element="D4" pad="C"/>
<contactref element="IC2" pad="1"/>
</signal>
<signal name="GND">
<contactref element="R1" pad="1"/>
<contactref element="GND" pad="1"/>
<contactref element="D1" pad="A"/>
<contactref element="D2" pad="K"/>
<contactref element="-" pad="1"/>
<contactref element="C3" pad="-"/>
<contactref element="C4" pad="-"/>
<contactref element="IC3" pad="10"/>
<contactref element="IC3" pad="9"/>
<contactref element="IC3" pad="8"/>
<contactref element="IC3" pad="6"/>
<contactref element="IC3" pad="7"/>
<contactref element="IC3" pad="16"/>
<contactref element="LEVEL" pad="1"/>
<contactref element="R13" pad="2"/>
<contactref element="D6" pad="A"/>
<contactref element="C8" pad="-"/>
<contactref element="C7" pad="-"/>
<contactref element="IC1" pad="4"/>
<contactref element="IC2" pad="4"/>
</signal>
<signal name="IN">
<contactref element="R1" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="IN" pad="1"/>
</signal>
<signal name="N$11">
<contactref element="D4" pad="A"/>
<contactref element="ATTACK" pad="1"/>
<contactref element="ATTACK" pad="2"/>
</signal>
<signal name="VR">
<contactref element="THRESHOLD" pad="3"/>
<contactref element="R5" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="C5" pad="2"/>
<contactref element="R8" pad="2"/>
<contactref element="R9" pad="2"/>
<contactref element="IC3" pad="4"/>
<contactref element="IC1" pad="6"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="N$1">
<contactref element="ATTACK" pad="3"/>
<contactref element="C3" pad="+"/>
<contactref element="R4" pad="2"/>
<contactref element="RELEASE" pad="3"/>
</signal>
<signal name="N$10">
<contactref element="R4" pad="1"/>
<contactref element="C4" pad="+"/>
<contactref element="IC2" pad="5"/>
</signal>
<signal name="N$13">
<contactref element="D5" pad="A"/>
<contactref element="Q1" pad="2"/>
<contactref element="IC2" pad="7"/>
</signal>
<signal name="N$14">
<contactref element="D5" pad="C"/>
<contactref element="Q1" pad="3"/>
<contactref element="R5" pad="2"/>
<contactref element="IC2" pad="6"/>
</signal>
<signal name="N$17">
<contactref element="R6" pad="2"/>
<contactref element="Q1" pad="1"/>
<contactref element="IC3" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="R3" pad="1"/>
<contactref element="R8" pad="1"/>
<contactref element="IC3" pad="5"/>
<contactref element="BRIGHT" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="C5" pad="1"/>
<contactref element="R7" pad="2"/>
</signal>
<signal name="N$18">
<contactref element="IC3" pad="13"/>
<contactref element="IC3" pad="12"/>
</signal>
<signal name="+9V">
<contactref element="IC3" pad="11"/>
<contactref element="R12" pad="1"/>
<contactref element="+9V" pad="1"/>
<contactref element="D6" pad="C"/>
<contactref element="C8" pad="+"/>
<contactref element="IC1" pad="8"/>
<contactref element="IC2" pad="8"/>
<contactref element="+" pad="1"/>
</signal>
<signal name="N$15">
<contactref element="RATIO" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="R10" pad="2"/>
<contactref element="C6" pad="+"/>
<contactref element="IC1" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="IC3" pad="3"/>
<contactref element="R10" pad="1"/>
<contactref element="R9" pad="1"/>
</signal>
<signal name="N$22">
<contactref element="R11" pad="1"/>
<contactref element="C6" pad="-"/>
</signal>
<signal name="N$23">
<contactref element="R11" pad="2"/>
<contactref element="LEVEL" pad="3"/>
</signal>
<signal name="OUT">
<contactref element="LEVEL" pad="2"/>
<contactref element="OUT" pad="1"/>
</signal>
<signal name="N$20">
<contactref element="R12" pad="2"/>
<contactref element="R13" pad="1"/>
<contactref element="C7" pad="+"/>
<contactref element="IC1" pad="5"/>
</signal>
<signal name="N$12">
<contactref element="R7" pad="1"/>
<contactref element="BRIGHT" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
