<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.4.2">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="110.8075" y2="0" width="0" layer="20"/>
<wire x1="110.8075" y1="0" x2="110.8075" y2="41.5925" width="0" layer="20"/>
<wire x1="110.8075" y1="41.5925" x2="54.61" y2="41.5925" width="0" layer="20"/>
<wire x1="54.61" y1="41.5925" x2="54.61" y2="49.53" width="0" layer="20"/>
<wire x1="54.61" y1="49.53" x2="0" y2="49.53" width="0" layer="20"/>
<wire x1="0" y1="49.53" x2="0" y2="0" width="0" layer="20"/>
<text>NOT FOR COMMERCIAL USE</text>
<text>N.E.W.</text>
<text>2021</text>
<text>TTTSNB DIY</text>
</plain>
<libraries>
<library name="mb_caps-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>
<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="mb_caps-electro">
<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="mb_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="mb_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="16MM">
<description>&lt;b&gt;Potentiometer&lt;/b&gt;
&lt;p&gt;potentiometer for showing off-board connections</description>
</package>
</packages>
</library>
<library name="mb_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="DIL08">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="potentiometers">
<packages>
<package name="16MM_DUAL">
</package>
</packages>
</library>
<library name="mb_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>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="mb_caps-box" package="072X025" value="100n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C13" library="mb_caps-box" package="072X025" value="180p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C14" library="mb_caps-box" package="072X025" value="470p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C15" library="mb_caps-box" package="072X025" value="47n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C16" library="mb_caps-box" package="072X035" value="330n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C19" library="mb_caps-electro" package="050_020_1" value="10u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C21" library="mb_caps-electro" package="050_020_1" value="100u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C23" library="mb_caps-box" package="072X025" value="180p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C24" library="mb_caps-electro" package="050_020_1" value="100u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C25" library="mb_caps-box" package="072X025" value="4.7n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C26" library="mb_caps-box" package="072X025" value="33n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C27" library="mb_caps-box" package="072X025" value="180p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C28" library="mb_caps-box" package="072X025" value="100p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C29" library="mb_caps-box" package="072X025" value="8.2n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C30" library="mb_caps-box" package="072X025" value="10n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="G" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="HFREQ" library="mb_pots" package="16MM" value="50kC">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="HIGH" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="I1" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="IC5" library="mb_ics" package="DIL08" value="TL072P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC6" library="mb_ics" package="DIL08" value="TL072P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC7" library="mb_ics" package="DIL08" value="LT1054">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC8" library="mb_ics" package="DIL08" value="TL072P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="L+" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="L-" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="LFREQ" library="potentiometers" package="16MM_DUAL" value="50kC">
<attribute name="NAME"/>
<attribute name="NAME"/>
</element>
<element name="LOW" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MFREQ" library="potentiometers" package="16MM_DUAL" value="50kC">
<attribute name="NAME"/>
<attribute name="NAME"/>
</element>
<element name="MID" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="O1" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="R15" library="mb_resistors" package="R0207/3" value="1.1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R16" library="mb_resistors" package="R0207/3" value="4.7k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R17" library="mb_resistors" package="R0207/3" value="1.1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R18" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R19" library="mb_resistors" package="R0207/3" value="2.4k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R20" library="mb_resistors" package="R0207/3" value="2.4k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R21" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R22" library="mb_resistors" package="R0207/3" value="1.1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R23" library="mb_resistors" package="R0207/3" value="1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R24" library="mb_resistors" package="R0207/3" value="12k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R25" library="mb_resistors" package="R0207/3" value="1.1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R26" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R27" library="mb_resistors" package="R0207/3" value="2.4k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R28" library="mb_resistors" package="R0207/3" value="2.4k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R29" library="mb_resistors" package="R0207/3" value="1.1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R30" library="mb_resistors" package="R0207/3" value="4.7k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R31" library="mb_resistors" package="R0207/3" value="1.1k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R32" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R33" library="mb_resistors" package="R0207/3" value="3k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R34" library="mb_resistors" package="R0207/3" value="2.4k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R7" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="V" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="C2" library="mb_caps-box" package="072X025" value="10p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="80HZ" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="750HZ" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="240HZ" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="2.2KHZ" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="6.6KHZ" library="mb_pots" package="16MM" value="10kB">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC4" library="mb_ics" package="DIL08" value="TL072P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R13" library="mb_resistors" package="R0207/3" value="3.3k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R14" library="mb_resistors" package="R0207/3" value="3.3k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC1" library="mb_ics" package="DIL08" value="TL072P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC2" library="mb_ics" package="DIL08" value="TL072P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="IC3" library="mb_ics" package="DIL08" value="TL072P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R8" library="mb_resistors" package="R0207/3" value="430R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="mb_resistors" package="R0207/3" value="110k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="mb_caps-box" package="072X025" value="15n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R9" library="mb_resistors" package="R0207/3" value="300R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="mb_resistors" package="R0207/3" value="160k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="mb_caps-box" package="072X025" value="5.6n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C8" library="mb_caps-box" package="072X035" value="680n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R10" library="mb_resistors" package="R0207/3" value="300R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="mb_resistors" package="R0207/3" value="110K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="mb_caps-box" package="072X025" value="4.7n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C9" library="mb_caps-box" package="072X025" value="330n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R11" library="mb_resistors" package="R0207/3" value="620">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="mb_resistors" package="R0207/3" value="82k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C6" library="mb_caps-box" package="072X025" value="1n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C10" library="mb_caps-box" package="072X025" value="220n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R12" library="mb_resistors" package="R0207/3" value="760">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="mb_resistors" package="R0207/3" value="100k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C11" library="mb_caps-box" package="072X025" value="360p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C12" library="mb_caps-box" package="072X025" value="47n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C17" library="mb_caps-box" package="072X025" value="470p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R35" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C31" library="mb_caps-box" package="072X025" value="100n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R36" library="mb_resistors" package="R0207/3" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="I2" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="O2" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
<element name="R37" library="mb_resistors" package="R0207/3" value="100k">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R38" library="mb_resistors" package="R0207/3" value="100R">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="mb_caps-box" package="072X035" value="3.3u">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C18" library="mb_caps-box" package="072X025" value="47n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C20" library="mb_caps-box" package="072X025" value="47n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="G1" library="mb_supply" package="SQUARE" value="">
<attribute name="NAME"/>
</element>
</elements>
<signals>
<signal name="GND">
<contactref element="R7" pad="2"/>
<contactref element="R6" pad="2"/>
<contactref element="C24" pad="-"/>
<contactref element="L-" pad="1"/>
<contactref element="G" pad="1"/>
<contactref element="IC7" pad="3"/>
<contactref element="C21" pad="+"/>
<contactref element="C13" pad="2"/>
<contactref element="LOW" pad="3"/>
<contactref element="R16" pad="2"/>
<contactref element="R21" pad="2"/>
<contactref element="C23" pad="2"/>
<contactref element="MID" pad="3"/>
<contactref element="R24" pad="2"/>
<contactref element="R26" pad="2"/>
<contactref element="C27" pad="2"/>
<contactref element="R33" pad="2"/>
<contactref element="IC3" pad="5"/>
<contactref element="R5" pad="1"/>
<contactref element="R4" pad="1"/>
<contactref element="R1" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="R36" pad="2"/>
<contactref element="R35" pad="2"/>
<contactref element="R37" pad="1"/>
<contactref element="C18" pad="1"/>
<contactref element="C20" pad="2"/>
<contactref element="G1" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="C1" pad="1"/>
<contactref element="R6" pad="1"/>
<contactref element="I1" pad="1"/>
</signal>
<signal name="-VA">
<contactref element="IC5" pad="4"/>
<contactref element="IC6" pad="4"/>
<contactref element="IC8" pad="4"/>
<contactref element="IC7" pad="5"/>
<contactref element="C21" pad="-"/>
<contactref element="IC3" pad="4"/>
<contactref element="IC4" pad="4"/>
<contactref element="IC1" pad="4"/>
<contactref element="IC2" pad="4"/>
<contactref element="C18" pad="2"/>
</signal>
<signal name="N$12">
<contactref element="R23" pad="2"/>
<contactref element="L+" pad="1"/>
</signal>
<signal name="+9V">
<contactref element="IC7" pad="8"/>
<contactref element="C24" pad="+"/>
<contactref element="R23" pad="1"/>
<contactref element="V" pad="1"/>
<contactref element="IC5" pad="8"/>
<contactref element="IC6" pad="8"/>
<contactref element="IC8" pad="8"/>
<contactref element="IC3" pad="8"/>
<contactref element="IC2" pad="8"/>
<contactref element="IC1" pad="8"/>
<contactref element="IC4" pad="8"/>
<contactref element="C20" pad="1"/>
</signal>
<signal name="N$15">
<contactref element="C19" pad="+"/>
<contactref element="IC7" pad="2"/>
<contactref element="C2" pad="2"/>
</signal>
<signal name="N$36">
<contactref element="C19" pad="-"/>
<contactref element="IC7" pad="4"/>
</signal>
<signal name="N$3">
<contactref element="C1" pad="2"/>
<contactref element="R15" pad="1"/>
</signal>
<signal name="N$4">
<contactref element="R15" pad="2"/>
<contactref element="R7" pad="1"/>
<contactref element="C13" pad="1"/>
<contactref element="IC5" pad="3"/>
</signal>
<signal name="N$5">
<contactref element="IC5" pad="1"/>
<contactref element="LOW" pad="1"/>
<contactref element="R18" pad="2"/>
<contactref element="C14" pad="1"/>
<contactref element="C15" pad="1"/>
<contactref element="R20" pad="1"/>
<contactref element="R22" pad="1"/>
</signal>
<signal name="N$6">
<contactref element="IC5" pad="5"/>
<contactref element="R17" pad="2"/>
</signal>
<signal name="N$7">
<contactref element="R17" pad="1"/>
<contactref element="LOW" pad="2"/>
<contactref element="R16" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="IC5" pad="2"/>
<contactref element="R18" pad="1"/>
<contactref element="C14" pad="2"/>
<contactref element="C15" pad="2"/>
<contactref element="R19" pad="2"/>
</signal>
<signal name="N$9">
<contactref element="IC5" pad="6"/>
<contactref element="IC5" pad="7"/>
<contactref element="C16" pad="2"/>
</signal>
<signal name="N$10">
<contactref element="R20" pad="2"/>
<contactref element="LFREQ" pad="3"/>
</signal>
<signal name="N$11">
<contactref element="LFREQ" pad="1"/>
<contactref element="LFREQ" pad="6"/>
<contactref element="LFREQ" pad="2"/>
<contactref element="C16" pad="1"/>
</signal>
<signal name="N$13">
<contactref element="LFREQ" pad="4"/>
<contactref element="R19" pad="1"/>
<contactref element="LFREQ" pad="5"/>
</signal>
<signal name="N$16">
<contactref element="IC6" pad="3"/>
<contactref element="R22" pad="2"/>
<contactref element="R21" pad="1"/>
<contactref element="C23" pad="1"/>
</signal>
<signal name="N$19">
<contactref element="IC6" pad="5"/>
<contactref element="R25" pad="2"/>
</signal>
<signal name="N$20">
<contactref element="R25" pad="1"/>
<contactref element="MID" pad="2"/>
<contactref element="R24" pad="1"/>
</signal>
<signal name="N$21">
<contactref element="IC6" pad="2"/>
<contactref element="R27" pad="2"/>
<contactref element="IC6" pad="1"/>
<contactref element="MID" pad="1"/>
<contactref element="C25" pad="1"/>
</signal>
<signal name="N$22">
<contactref element="IC6" pad="6"/>
<contactref element="IC6" pad="7"/>
<contactref element="C26" pad="1"/>
</signal>
<signal name="N$23">
<contactref element="R28" pad="2"/>
<contactref element="MFREQ" pad="3"/>
</signal>
<signal name="N$24">
<contactref element="MFREQ" pad="1"/>
<contactref element="MFREQ" pad="6"/>
<contactref element="MFREQ" pad="2"/>
<contactref element="C26" pad="2"/>
</signal>
<signal name="N$25">
<contactref element="MFREQ" pad="4"/>
<contactref element="R27" pad="1"/>
<contactref element="MFREQ" pad="5"/>
</signal>
<signal name="N$17">
<contactref element="C25" pad="2"/>
<contactref element="R28" pad="1"/>
<contactref element="R29" pad="1"/>
</signal>
<signal name="N$18">
<contactref element="R29" pad="2"/>
<contactref element="R26" pad="1"/>
<contactref element="C27" pad="1"/>
<contactref element="IC8" pad="3"/>
</signal>
<signal name="N$27">
<contactref element="IC8" pad="1"/>
<contactref element="HIGH" pad="1"/>
<contactref element="R32" pad="2"/>
<contactref element="C28" pad="1"/>
<contactref element="R34" pad="2"/>
<contactref element="O1" pad="1"/>
</signal>
<signal name="N$28">
<contactref element="IC8" pad="5"/>
<contactref element="R31" pad="2"/>
</signal>
<signal name="N$29">
<contactref element="R31" pad="1"/>
<contactref element="HIGH" pad="2"/>
<contactref element="R30" pad="1"/>
</signal>
<signal name="N$31">
<contactref element="IC8" pad="6"/>
<contactref element="IC8" pad="7"/>
<contactref element="C29" pad="2"/>
<contactref element="C30" pad="2"/>
</signal>
<signal name="N$33">
<contactref element="C29" pad="1"/>
<contactref element="C30" pad="1"/>
<contactref element="IC8" pad="2"/>
<contactref element="R32" pad="1"/>
<contactref element="C28" pad="2"/>
<contactref element="HFREQ" pad="3"/>
</signal>
<signal name="N$30">
<contactref element="HIGH" pad="3"/>
<contactref element="R30" pad="2"/>
<contactref element="R33" pad="1"/>
</signal>
<signal name="N$26">
<contactref element="HFREQ" pad="2"/>
<contactref element="HFREQ" pad="1"/>
<contactref element="R34" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="IC7" pad="7"/>
<contactref element="C2" pad="1"/>
</signal>
<signal name="N$46">
<contactref element="IC4" pad="2"/>
<contactref element="IC4" pad="1"/>
<contactref element="R13" pad="1"/>
</signal>
<signal name="N$49">
<contactref element="R14" pad="2"/>
<contactref element="IC4" pad="7"/>
<contactref element="C17" pad="2"/>
<contactref element="R38" pad="1"/>
</signal>
<signal name="N$51">
<contactref element="IC1" pad="2"/>
<contactref element="IC1" pad="1"/>
<contactref element="R8" pad="1"/>
</signal>
<signal name="N$52">
<contactref element="IC1" pad="3"/>
<contactref element="R1" pad="2"/>
<contactref element="C3" pad="1"/>
</signal>
<signal name="N$53">
<contactref element="R8" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="C7" pad="1"/>
</signal>
<signal name="N$57">
<contactref element="R9" pad="1"/>
<contactref element="IC1" pad="6"/>
<contactref element="IC1" pad="7"/>
</signal>
<signal name="N$58">
<contactref element="R2" pad="2"/>
<contactref element="C4" pad="1"/>
<contactref element="IC1" pad="5"/>
</signal>
<signal name="N$59">
<contactref element="R9" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="C8" pad="1"/>
</signal>
<signal name="N$60">
<contactref element="C8" pad="2"/>
<contactref element="240HZ" pad="2"/>
</signal>
<signal name="N$63">
<contactref element="R10" pad="1"/>
<contactref element="IC2" pad="2"/>
<contactref element="IC2" pad="1"/>
</signal>
<signal name="N$64">
<contactref element="R3" pad="2"/>
<contactref element="C5" pad="1"/>
<contactref element="IC2" pad="3"/>
</signal>
<signal name="N$65">
<contactref element="R10" pad="2"/>
<contactref element="C5" pad="2"/>
<contactref element="C9" pad="1"/>
</signal>
<signal name="N$66">
<contactref element="C9" pad="2"/>
<contactref element="750HZ" pad="2"/>
</signal>
<signal name="N$69">
<contactref element="R11" pad="1"/>
<contactref element="IC2" pad="6"/>
<contactref element="IC2" pad="7"/>
</signal>
<signal name="N$70">
<contactref element="R4" pad="2"/>
<contactref element="C6" pad="1"/>
<contactref element="IC2" pad="5"/>
</signal>
<signal name="N$71">
<contactref element="R11" pad="2"/>
<contactref element="C6" pad="2"/>
<contactref element="C10" pad="1"/>
</signal>
<signal name="N$72">
<contactref element="C10" pad="2"/>
<contactref element="2.2KHZ" pad="2"/>
</signal>
<signal name="N$48">
<contactref element="R14" pad="1"/>
<contactref element="IC4" pad="6"/>
<contactref element="C17" pad="1"/>
<contactref element="2.2KHZ" pad="3"/>
<contactref element="6.6KHZ" pad="3"/>
<contactref element="750HZ" pad="3"/>
<contactref element="80HZ" pad="3"/>
<contactref element="240HZ" pad="3"/>
</signal>
<signal name="N$55">
<contactref element="IC4" pad="5"/>
<contactref element="R13" pad="2"/>
<contactref element="2.2KHZ" pad="1"/>
<contactref element="6.6KHZ" pad="1"/>
<contactref element="750HZ" pad="1"/>
<contactref element="80HZ" pad="1"/>
<contactref element="240HZ" pad="1"/>
</signal>
<signal name="N$61">
<contactref element="R12" pad="1"/>
<contactref element="IC3" pad="2"/>
<contactref element="IC3" pad="1"/>
</signal>
<signal name="N$73">
<contactref element="R5" pad="2"/>
<contactref element="C11" pad="1"/>
<contactref element="IC3" pad="3"/>
</signal>
<signal name="N$74">
<contactref element="R12" pad="2"/>
<contactref element="C11" pad="2"/>
<contactref element="C12" pad="1"/>
</signal>
<signal name="N$75">
<contactref element="C12" pad="2"/>
<contactref element="6.6KHZ" pad="2"/>
</signal>
<signal name="N$62">
<contactref element="IC3" pad="7"/>
<contactref element="IC3" pad="6"/>
</signal>
<signal name="N$32">
<contactref element="C31" pad="1"/>
<contactref element="R35" pad="1"/>
<contactref element="I2" pad="1"/>
</signal>
<signal name="N$35">
<contactref element="R36" pad="1"/>
<contactref element="IC4" pad="3"/>
<contactref element="C31" pad="2"/>
</signal>
<signal name="N$34">
<contactref element="O2" pad="1"/>
<contactref element="R37" pad="2"/>
<contactref element="R38" pad="2"/>
</signal>
<signal name="N$14">
<contactref element="80HZ" pad="2"/>
<contactref element="C7" pad="2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
