<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
<text>M306B</text>
</plain>
<libraries>
<library name="rcl">
<packages>
<package name="C050-025X075">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 5 mm, outline 2.5 x 7.5 mm</description>
</package>
<package name="0207/10">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 10 mm</description>
</package>
<package name="C102-043X133">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 10.2 mm, outline 4.3 x 13.3 mm</description>
</package>
<package name="C075-032X103">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 7.5 mm, outline 3.2 x 10.3 mm</description>
</package>
</packages>
</library>
<library name="transistor">
<packages>
<package name="TO39">
<description>&lt;b&gt;TO-39&lt;/b&gt;</description>
</package>
<package name="TO5">
<description>&lt;b&gt;TO 5&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="74xx-us">
<packages>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="dec-con">
<packages>
<package name="EDGE-CON2">
<description>Single-Height DEC edge connector</description>
</package>
<package name="SINGLE">
<description>Single-Height DEC board</description>
</package>
<package name="FLIPCHIP">
</package>
<package name="3006Y">
<description>Older, larger style of multi-turn potentiometer.</description>
</package>
</packages>
</library>
<library name="transistor-npn">
<packages>
<package name="TO5">
<description>&lt;b&gt;TO 5&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="wirepad">
<packages>
<package name="3,17/1,3">
<description>&lt;b&gt;THROUGH-HOLE PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="R1" library="rcl" package="0207/10" value="1000"/>
<element name="U$1" library="dec-con" package="EDGE-CON2" value=""/>
<element name="U$2" library="dec-con" package="SINGLE" value="OUTLINE-SINGLE"/>
<element name="U$3" library="dec-con" package="FLIPCHIP" value=""/>
<element name="R4" library="rcl" package="0207/10" value="1000"/>
<element name="E2" library="74xx-us" package="DIL14" value="74H00N"/>
<element name="Q4" library="transistor" package="TO39" value=""/>
<element name="C1" library="rcl" package="C050-025X075" value=".01uF"/>
<element name="C2" library="rcl" package="C050-025X075" value=".01uF"/>
<element name="C4" library="rcl" package="C075-032X103" value=""/>
<element name="C3" library="rcl" package="C102-043X133" value=".1uF"/>
<element name="R2" library="rcl" package="0207/10" value="470"/>
<element name="R3" library="rcl" package="0207/10" value="470"/>
<element name="R5" library="rcl" package="0207/10" value="330"/>
<element name="R8" library="rcl" package="0207/10" value="330"/>
<element name="C5" library="rcl" package="C075-032X103" value=""/>
<element name="R6" library="rcl" package="0207/10" value="190"/>
<element name="R7" library="rcl" package="0207/10" value="330"/>
<element name="R9" library="rcl" package="0207/10" value="1000"/>
<element name="R12" library="rcl" package="0207/10" value="3300"/>
<element name="C6" library="rcl" package="C075-032X103" value=""/>
<element name="R10" library="rcl" package="0207/10" value="3300"/>
<element name="R11" library="rcl" package="0207/10" value="1000"/>
<element name="R13" library="rcl" package="0207/10" value="560"/>
<element name="R16" library="rcl" package="0207/10" value="1000"/>
<element name="R14" library="rcl" package="0207/10" value="100"/>
<element name="R15" library="rcl" package="0207/10" value="470"/>
<element name="R17" library="rcl" package="0207/10" value="190"/>
<element name="E1" library="74xx-us" package="DIL14" value="74H10N"/>
<element name="Q5" library="transistor" package="TO39" value=""/>
<element name="Q6" library="transistor" package="TO39" value=""/>
<element name="Q7" library="transistor" package="TO39" value=""/>
<element name="Q8" library="transistor-npn" package="TO5" value="2N2219"/>
<element name="R18" library="rcl" package="0207/10" value="1000"/>
<element name="R19" library="rcl" package="0207/10" value="1000"/>
<element name="R20" library="rcl" package="0207/10" value="1000"/>
<element name="R21" library="rcl" package="0207/10" value="470"/>
<element name="R22" library="rcl" package="0207/10" value="470"/>
<element name="R23" library="rcl" package="0207/10" value="1000"/>
<element name="R24" library="dec-con" package="3006Y" value="20K"/>
<element name="-" library="wirepad" package="3,17/1,3" value=""/>
<element name="+" library="wirepad" package="3,17/1,3" value=""/>
<element name="Q1" library="transistor" package="TO5" value=""/>
<element name="Q3" library="transistor" package="TO5" value=""/>
<element name="Q2" library="transistor" package="TO5" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="U$1" pad="C2"/>
<contactref element="E2" pad="7"/>
<contactref element="C1" pad="2"/>
<contactref element="C2" pad="2"/>
<contactref element="E1" pad="7"/>
<contactref element="C3" pad="2"/>
<contactref element="R12" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="R23" pad="2"/>
<contactref element="Q4" pad="1"/>
<contactref element="R10" pad="1"/>
<contactref element="Q7" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="R15" pad="1"/>
<contactref element="Q8" pad="1"/>
<contactref element="U$1" pad="M2"/>
<contactref element="-" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="R20" pad="1"/>
<contactref element="R18" pad="1"/>
<contactref element="R21" pad="1"/>
</signal>
<signal name="VCC">
<contactref element="U$1" pad="A2"/>
<contactref element="E2" pad="14"/>
<contactref element="C1" pad="1"/>
<contactref element="C2" pad="1"/>
<contactref element="E1" pad="14"/>
<contactref element="C3" pad="1"/>
<contactref element="R5" pad="2"/>
<contactref element="R9" pad="1"/>
<contactref element="R22" pad="2"/>
<contactref element="R24" pad="3"/>
<contactref element="R24" pad="2"/>
<contactref element="R1" pad="1"/>
<contactref element="R11" pad="1"/>
<contactref element="R17" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="Q1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="R17" pad="2"/>
<contactref element="R16" pad="2"/>
<contactref element="C6" pad="1"/>
<contactref element="E2" pad="11"/>
</signal>
<signal name="N$4">
<contactref element="R15" pad="2"/>
<contactref element="R16" pad="1"/>
<contactref element="C6" pad="2"/>
<contactref element="Q8" pad="2"/>
</signal>
<signal name="N$5">
<contactref element="R14" pad="2"/>
<contactref element="Q8" pad="3"/>
<contactref element="R13" pad="2"/>
</signal>
<signal name="N$8">
<contactref element="R11" pad="2"/>
<contactref element="R12" pad="1"/>
<contactref element="Q4" pad="3"/>
<contactref element="E2" pad="5"/>
</signal>
<signal name="N$11">
<contactref element="R8" pad="2"/>
<contactref element="C5" pad="1"/>
<contactref element="Q4" pad="2"/>
<contactref element="R23" pad="1"/>
</signal>
<signal name="N$12">
<contactref element="R7" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="Q2" pad="2"/>
</signal>
<signal name="N$13">
<contactref element="R1" pad="2"/>
<contactref element="Q6" pad="3"/>
</signal>
<signal name="N$14">
<contactref element="R2" pad="2"/>
<contactref element="Q5" pad="3"/>
<contactref element="Q1" pad="2"/>
</signal>
<signal name="N$15">
<contactref element="R3" pad="2"/>
<contactref element="Q5" pad="1"/>
<contactref element="Q6" pad="1"/>
</signal>
<signal name="N$16">
<contactref element="R4" pad="2"/>
<contactref element="R5" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="Q6" pad="2"/>
</signal>
<signal name="N$33">
<contactref element="R4" pad="1"/>
<contactref element="Q7" pad="3"/>
<contactref element="E1" pad="13"/>
</signal>
<signal name="N$28">
<contactref element="R8" pad="1"/>
<contactref element="Q3" pad="3"/>
</signal>
<signal name="D2">
<contactref element="U$1" pad="D2"/>
<contactref element="R24" pad="1"/>
</signal>
<signal name="T2">
<contactref element="U$1" pad="T2"/>
<contactref element="E1" pad="5"/>
<contactref element="E2" pad="8"/>
</signal>
<signal name="S2">
<contactref element="U$1" pad="S2"/>
<contactref element="E1" pad="6"/>
</signal>
<signal name="L2">
<contactref element="U$1" pad="L2"/>
<contactref element="+" pad="1"/>
<contactref element="R14" pad="1"/>
<contactref element="Q5" pad="2"/>
<contactref element="Q3" pad="2"/>
</signal>
<signal name="J2">
<contactref element="U$1" pad="J2"/>
<contactref element="E1" pad="10"/>
</signal>
<signal name="H2">
<contactref element="U$1" pad="H2"/>
<contactref element="E1" pad="11"/>
</signal>
<signal name="E2">
<contactref element="U$1" pad="E2"/>
<contactref element="R13" pad="1"/>
</signal>
<signal name="N$52">
<contactref element="Q7" pad="2"/>
<contactref element="R20" pad="2"/>
<contactref element="C4" pad="1"/>
<contactref element="R19" pad="1"/>
</signal>
<signal name="N$57">
<contactref element="E1" pad="8"/>
<contactref element="E2" pad="13"/>
<contactref element="E2" pad="1"/>
</signal>
<signal name="N$59">
<contactref element="E1" pad="12"/>
<contactref element="E2" pad="9"/>
</signal>
<signal name="N$70">
<contactref element="E2" pad="6"/>
<contactref element="E2" pad="12"/>
<contactref element="E2" pad="2"/>
<contactref element="E2" pad="10"/>
</signal>
<signal name="N$71">
<contactref element="E2" pad="3"/>
<contactref element="E2" pad="4"/>
</signal>
<signal name="N$83">
<contactref element="C4" pad="2"/>
<contactref element="R18" pad="2"/>
<contactref element="R19" pad="2"/>
<contactref element="Q1" pad="3"/>
</signal>
<signal name="N$90">
<contactref element="R22" pad="1"/>
<contactref element="Q2" pad="1"/>
<contactref element="Q3" pad="1"/>
</signal>
<signal name="N$94">
<contactref element="R21" pad="2"/>
<contactref element="Q2" pad="3"/>
</signal>
<signal name="+3V3">
<contactref element="R9" pad="2"/>
<contactref element="U$1" pad="K2"/>
<contactref element="E1" pad="1"/>
<contactref element="E1" pad="2"/>
<contactref element="E1" pad="3"/>
<contactref element="E1" pad="4"/>
<contactref element="E1" pad="9"/>
<contactref element="R10" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
