<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="7.7.0">
<drawing>
<board>
<plain>
<text>Loch Box   Rev: A
University of Toronto
A. Steinberg Labs</text>
<text>Alan</text>
<text>Design By</text>
<text>N.B.: In the library, temporarily remove the 4 lower mtg posts on the case.</text>
<wire x1="16" y1="170" x2="16" y2="165" width="6.35" layer="46"/>
<wire x1="16" y1="165" x2="9" y2="165" width="6.35" layer="46"/>
<wire x1="80" y1="170" x2="80" y2="165" width="6.35" layer="46"/>
<wire x1="80" y1="165" x2="85" y2="165" width="6.35" layer="46"/>
<wire x1="80" y1="116" x2="80" y2="121" width="6.35" layer="46"/>
<wire x1="80" y1="121" x2="85" y2="121" width="6.35" layer="46"/>
<wire x1="16" y1="116" x2="16" y2="121" width="6.35" layer="46"/>
<wire x1="16" y1="121" x2="0" y2="121" width="6.35" layer="46"/>
<wire x1="8" y1="147" x2="8" y2="130" width="6.35" layer="46"/>
<wire x1="26" y1="113" x2="43" y2="113" width="6.35" layer="46"/>
<wire x1="53" y1="113" x2="70" y2="113" width="6.35" layer="46"/>
<wire x1="88" y1="130" x2="88" y2="147" width="6.35" layer="46"/>
<text>WS3054 Amp
UofT - Physics</text>
<hole x="16.1414" y="127.8518" drill="3.175"/>
<hole x="16.1414" y="157.8492" drill="3.175"/>
<hole x="80.1494" y="157.8492" drill="3.175"/>
<hole x="80.1494" y="127.8518" drill="3.175"/>
<text>0.506"
6 pl</text>
<text>150.5</text>
<text>13.06</text>
<text>0</text>
<text>254
ref</text>
<text>0</text>
<text>60.07
ref</text>
<text>29.06</text>
<text>180.5</text>
<text>210.5</text>
<text>100</text>
<text>1/4"</text>
<text>3/16"</text>
</plain>
<libraries>
<library name="QuantumOptics">
<description>&lt;b&gt;U of T Physics, Quantum Optics Labs&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by Alan Stummer, Nov '03&lt;/author&gt;&lt;p&gt;
Various devices, symbols and packages used here.</description>
<packages>
<package name="TP-0.042B">
<description>&lt;b&gt;Test Point&lt;/b&gt;, 0.042" hole, to fit small test point such as Keystone 5002K, or wire. Has continious fence so will generate lots of DRCs which can be ignored.</description>
</package>
<package name="TP-LOOP">
<description>&lt;b&gt;Test Point&lt;/b&gt;, with 0.086" through-hole for loop test point (really needs 0.063 hole but 0.086 is standard drill).</description>
</package>
<package name="MISC">
<description>&lt;b&gt;Misc Part&lt;/b&gt;, part not on board but placeholder so it shows up on the BOM.</description>
</package>
<package name="2012(0805)">
<description>&lt;b&gt;R, C or L&lt;/b&gt;, 0805 SMT.</description>
</package>
<package name="2917(7343)">
<description>&lt;b&gt;2917 (7343) SMT package&lt;/b&gt;, using medium density (nominal footprint) from Kemet.</description>
</package>
<package name="1206(3216)">
<description>&lt;b&gt;1206, metric 3216, probably passive&lt;/b&gt;, based on Sei Electonics land pattern.</description>
</package>
<package name="CONN:BNC,DUAL(BOMAR)">
<description>&lt;b&gt;Dual BNC, vertical throughhole, isolated&lt;/b&gt;, Bomar, e.g. 364A2595, H=29.3mm, http://media.digikey.com/pdf/Data%20Sheets/Bomar%20PDFs/BNC_Products_Spec.pdf</description>
</package>
<package name="INDUCTOR:WURTH_74405">
<description>&lt;b&gt;Inductor, Wurth 744&lt;/b&gt;, small SMT.&lt;br&gt;
http://www.we-online.com/eisos/pdf/744052002.pdf</description>
</package>
<package name="LIGHTPIPE,BIVAR_SMFLP">
<description>&lt;b&gt;Lightpipe for SMT LEDs&lt;/b&gt;, Bivar SMFLPx.x</description>
</package>
<package name="BOURNS_3590">
<description>&lt;b&gt;Pot&lt;/b&gt;, 10-turn, Bourns 3590, mounted on side.  Panel, when mounted, is shown with diagonal lines.&lt;br&gt;
&lt;a href="http://www.bourns.com/pdf/3590.pdf"&gt;http://www.bourns.com/pdf/3590.pdf&lt;/a&gt;&lt;br&gt;
Also remember turns counting dial H-22-6a.</description>
</package>
<package name="BOURNS_91">
<description>&lt;b&gt;Bourns 91 Series pot&lt;/b&gt;, single turn, panel mount, conductive plastic, types 91A1A-, cermet has far lower tempco than conductive plastic</description>
</package>
<package name="SWITCH,CTS_SP12T(212P0112)">
<description>&lt;b&gt;Rotary switch, 12-pos, CTS 212T01xxxx series&lt;/b&gt;, right angle through-hole panel mount, adjustable stops</description>
</package>
<package name="SWITCH:E-SWITCH_1??AV2?">
<description>&lt;b&gt;Toggle SPDT, right angle PCB, vertical actuation&lt;/b&gt;, C&amp;K E-Switch series, such as E101MD1AV2BE (on-on) or E103MD1AV2BE (on-off-on).</description>
</package>
<package name="SWITCH:E-SWITCH_2??D?AV2?">
<description>&lt;b&gt;Toggle DPDT, right angle PCB, vertical actuation&lt;/b&gt;, C&amp;K E-Switch series, such as E201MD1AV2BE (on-on) or E203MD1AV2BE (on-off-on).</description>
</package>
<package name="SOIC-8">
<description>&lt;b&gt;SOIC-8 (AKA SO-8)&lt;/b&gt;, pads on 0.050" grid.</description>
</package>
<package name="SOIC-14">
<description>&lt;b&gt;Small Outline Package 14&lt;/b&gt;</description>
</package>
<package name="TSOP-6">
<description>&lt;b&gt;TSOP-6, 3x3mm&lt;/b&gt;, from Vishay Siliconix si3586dv complimentary FETs.</description>
</package>
<package name="DC-DC:DCH01(ISO,UNI/BI,1W)">
<description>&lt;b&gt;DC-DC isolated, unregulated, uni- bipolar, such as CUI PEM1-S12-S12-S</description>
</package>
<package name="CASE,BUD_PC11482">
<description>&lt;b&gt;Plastic case with metal panels, 260mmW x 180D x 65H&lt;/b&gt;, Bud PC-11482</description>
</package>
<package name="SOIC-16">
<description>&lt;b&gt; SOIC-16&lt;/B&gt;, 0.05" pad spacing with 0.15" wide case.</description>
</package>
<package name="CONN:BNC-AMP-TYPE3HORIZ">
<description>&lt;b&gt;BNC PCB &lt;u&gt;Horizontal&lt;/u&gt; mount connector&lt;/b&gt;, Amp, horizontal, e.g. 5226990-3,  nut 1-329631-2, shoulder washer 330620.</description>
</package>
<package name="CASE,HAMMOND_RL6105_RL6115">
<description>&lt;b&gt;Hammond plastic case, 80 x 60mm, 30/40mmH, rounded corners.</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="&quot;I&quot;" library="QuantumOptics" package="TP-0.042B" value="">
<attribute name="NAME"/>
</element>
<element name="&quot;PID&quot;" library="QuantumOptics" package="TP-0.042B" value="">
<attribute name="NAME"/>
</element>
<element name="12V+" library="QuantumOptics" package="TP-LOOP" value="">
<attribute name="NAME"/>
<attribute name="NAME"/>
</element>
<element name="12V-" library="QuantumOptics" package="TP-LOOP" value="">
<attribute name="NAME"/>
<attribute name="NAME"/>
</element>
<element name="ACDC" library="QuantumOptics" package="MISC" value="PSM03A-120-R">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C8" library="QuantumOptics" package="2012(0805)" value="390pF">
<attribute name="MFG" value=""/>
<attribute name="TEMPCO" value="NPO,COG"/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C15" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C11" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C12" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C2" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C3" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C24" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C25" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C20" library="QuantumOptics" package="2012(0805)" value="390pF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C4" library="QuantumOptics" package="2012(0805)" value="390pF">
<attribute name="NAME"/>
</element>
<element name="C22" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C21" library="QuantumOptics" package="2917(7343)" value="100uF">
<attribute name="PN" value="593D107X9016E2TE3"/>
<attribute name="NAME"/>
</element>
<element name="C16" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C10" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C18" library="QuantumOptics" package="2917(7343)" value="100uF">
<attribute name="PN" value="593D107X9016E2TE3"/>
<attribute name="NAME"/>
</element>
<element name="C28" library="QuantumOptics" package="2917(7343)" value="100uF">
<attribute name="PN" value="593D107X9016E2TE3"/>
<attribute name="NAME"/>
</element>
<element name="C30" library="QuantumOptics" package="2917(7343)" value="100uF">
<attribute name="PN" value="593D107X9016E2TE3"/>
<attribute name="NAME"/>
</element>
<element name="C29" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C31" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C17" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C13" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C19" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C23" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C14" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C9" library="QuantumOptics" package="2012(0805)" value="390pF">
<attribute name="MFG" value=""/>
<attribute name="TEMPCO" value="NPO,COG"/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C1" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="C6" library="QuantumOptics" package="2012(0805)" value="10nF">
<attribute name="NAME"/>
</element>
<element name="C5" library="QuantumOptics" package="2012(0805)" value="100nF">
<attribute name="NAME"/>
</element>
<element name="C7" library="QuantumOptics" package="2012(0805)" value="out">
<attribute name="NAME"/>
</element>
<element name="CASE" library="QuantumOptics" package="MISC" value="PC-11482-A">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="D1" library="QuantumOptics" package="1206(3216)" value="XZMDKVG55W-4">
<attribute name="NAME"/>
</element>
<element name="J1" library="QuantumOptics" package="CONN:BNC,DUAL(BOMAR)" value="112705">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NUT" value="1-1634816-0 "/>
<attribute name="NAME"/>
</element>
<element name="J2" library="QuantumOptics" package="CONN:BNC,DUAL(BOMAR)" value="112705">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NUT" value="1-1634816-0 "/>
<attribute name="NAME"/>
</element>
<element name="J3" library="QuantumOptics" package="CONN:BNC,DUAL(BOMAR)" value="112705">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NUT" value="1-1634816-0 "/>
<attribute name="NAME"/>
</element>
<element name="L3" library="QuantumOptics" package="INDUCTOR:WURTH_74405" value="220uH">
<attribute name="PN" value="SRR4028-221Y"/>
<attribute name="NAME"/>
</element>
<element name="L4" library="QuantumOptics" package="INDUCTOR:WURTH_74405" value="220uH">
<attribute name="PN" value="SRR4028-221Y"/>
<attribute name="NAME"/>
</element>
<element name="L5" library="QuantumOptics" package="INDUCTOR:WURTH_74405" value="220uH">
<attribute name="PN" value="SRR4028-221Y"/>
<attribute name="NAME"/>
</element>
<element name="L1" library="QuantumOptics" package="INDUCTOR:WURTH_74405" value="220uH">
<attribute name="PN" value="SRR4028-221Y"/>
<attribute name="NAME"/>
</element>
<element name="L2" library="QuantumOptics" package="INDUCTOR:WURTH_74405" value="220uH">
<attribute name="PN" value="SRR4028-221Y"/>
<attribute name="NAME"/>
</element>
<element name="LP1" library="QuantumOptics" package="LIGHTPIPE,BIVAR_SMFLP" value="SMFLP06??">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="M+" library="QuantumOptics" package="TP-0.042B" value="">
<attribute name="NAME"/>
</element>
<element name="M-" library="QuantumOptics" package="TP-0.042B" value="">
<attribute name="NAME"/>
</element>
<element name="METER" library="QuantumOptics" package="MISC" value="MC34H">
<attribute name="RANGE" value="±100uA"/>
<attribute name="MFG" value="Multicomp"/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="R2" library="QuantumOptics" package="2012(0805)" value="10K">
<attribute name="NAME"/>
</element>
<element name="R25" library="QuantumOptics" package="2012(0805)" value="out">
<attribute name="NAME"/>
</element>
<element name="R26" library="QuantumOptics" package="2012(0805)" value="402K">
<attribute name="NAME"/>
</element>
<element name="R27" library="QuantumOptics" package="2012(0805)" value="200K">
<attribute name="NAME"/>
</element>
<element name="R28" library="QuantumOptics" package="2012(0805)" value="100K">
<attribute name="NAME"/>
</element>
<element name="R29" library="QuantumOptics" package="2012(0805)" value="40.2K">
<attribute name="NAME"/>
</element>
<element name="R30" library="QuantumOptics" package="2012(0805)" value="20K">
<attribute name="NAME"/>
</element>
<element name="R31" library="QuantumOptics" package="2012(0805)" value="10K">
<attribute name="NAME"/>
</element>
<element name="R46" library="QuantumOptics" package="2012(0805)" value="2K">
<attribute name="NAME"/>
</element>
<element name="R36" library="QuantumOptics" package="2012(0805)" value="2K">
<attribute name="NAME"/>
</element>
<element name="R39" library="QuantumOptics" package="2012(0805)" value="2K">
<attribute name="NAME"/>
</element>
<element name="R5" library="QuantumOptics" package="2012(0805)" value="200">
<attribute name="NAME"/>
</element>
<element name="R1" library="QuantumOptics" package="BOURNS_3590" value="3590P-1-103L">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="QuantumOptics" package="2012(0805)" value="10K">
<attribute name="NAME"/>
</element>
<element name="R9" library="QuantumOptics" package="BOURNS_91" value="91A1A-B24-A15L">
<attribute name="DESC" value="&quot;P-gain&quot;"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R15" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
</element>
<element name="R13" library="QuantumOptics" package="BOURNS_91" value="91A1A-B24-A15L">
<attribute name="DESC" value="&quot;D-gain&quot;"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R17" library="QuantumOptics" package="2012(0805)" value="10K">
<attribute name="NAME"/>
</element>
<element name="R33" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
</element>
<element name="R4" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
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<element name="R11" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
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<element name="R19" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
</element>
<element name="R8" library="QuantumOptics" package="2012(0805)" value="2K">
<attribute name="NAME"/>
</element>
<element name="R14" library="QuantumOptics" package="BOURNS_91" value="91A1A-B24-A15L">
<attribute name="DESC" value="&quot;I-gain&quot;"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R16" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
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<element name="R37" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
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<element name="R34" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
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<element name="R12" library="QuantumOptics" package="2012(0805)" value="100K">
<attribute name="NAME"/>
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<element name="R42" library="QuantumOptics" package="BOURNS_91" value="91A1A-B24-A15L">
<attribute name="DESC" value="&quot;Fast Out&quot;"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
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<element name="R44" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
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<element name="R48" library="QuantumOptics" package="2012(0805)" value="200">
<attribute name="NAME"/>
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<element name="R43" library="QuantumOptics" package="BOURNS_91" value="91A1A-B24-A15L">
<attribute name="DESC" value="&quot;Slow Out&quot;"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
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<element name="R45" library="QuantumOptics" package="2012(0805)" value="40.2K">
<attribute name="NAME"/>
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<element name="R7" library="QuantumOptics" package="2012(0805)" value="200">
<attribute name="NAME"/>
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<element name="R49" library="QuantumOptics" package="2012(0805)" value="200">
<attribute name="NAME"/>
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<element name="R10" library="QuantumOptics" package="2012(0805)" value="100K">
<attribute name="NAME"/>
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<element name="R18" library="QuantumOptics" package="2012(0805)" value="200">
<attribute name="NAME"/>
</element>
<element name="R35" library="QuantumOptics" package="2012(0805)" value="1.2M">
<attribute name="NAME"/>
</element>
<element name="R38" library="QuantumOptics" package="2012(0805)" value="10K">
<attribute name="NAME"/>
</element>
<element name="R40" library="QuantumOptics" package="2012(0805)" value="11.8K">
<attribute name="NAME"/>
</element>
<element name="R41" library="QuantumOptics" package="BOURNS_91" value="91A1A-B24-A15L">
<attribute name="DESC" value="&quot;Scan&quot;"/>
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="QuantumOptics" package="2012(0805)" value="200">
<attribute name="NAME"/>
</element>
<element name="R47" library="QuantumOptics" package="2012(0805)" value="2K">
<attribute name="NAME"/>
</element>
<element name="R50" library="QuantumOptics" package="2012(0805)" value="100K">
<attribute name="NAME"/>
</element>
<element name="R20" library="QuantumOptics" package="2012(0805)" value="4.02K">
<attribute name="NAME"/>
</element>
<element name="R32" library="QuantumOptics" package="2012(0805)" value="1K">
<attribute name="NAME"/>
</element>
<element name="R21" library="QuantumOptics" package="2012(0805)" value="1.62K">
<attribute name="NAME"/>
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<element name="R22" library="QuantumOptics" package="2012(0805)" value="out">
<attribute name="NAME"/>
</element>
<element name="R23" library="QuantumOptics" package="2012(0805)" value="out">
<attribute name="NAME"/>
</element>
<element name="R24" library="QuantumOptics" package="2012(0805)" value="out">
<attribute name="NAME"/>
</element>
<element name="SW1" library="QuantumOptics" package="SWITCH,CTS_SP12T(212P0112)" value="212P0112N332RA">
<attribute name="DESC" value="&quot;BandWidth&quot;"/>
<attribute name="NAME"/>
</element>
<element name="SW2" library="QuantumOptics" package="SWITCH:E-SWITCH_1??AV2?" value="E101MD1AV2BE">
<attribute name="DESC" value="&quot;Slope&quot;"/>
<attribute name="NAME"/>
</element>
<element name="SW4" library="QuantumOptics" package="SWITCH:E-SWITCH_2??D?AV2?" value="E203MD1AV2BE">
<attribute name="DESC" value="&quot;Run/Off/Scan&quot;"/>
<attribute name="NAME"/>
</element>
<element name="SW5" library="QuantumOptics" package="SWITCH:E-SWITCH_2??D?AV2?" value="E203MD1AV2BE">
<attribute name="DESC" value="&quot;Run/Off/Scan&quot;"/>
<attribute name="NAME"/>
</element>
<element name="SW3" library="QuantumOptics" package="SWITCH:E-SWITCH_1??AV2?" value="E101MD1AV2BE">
<attribute name="DESC" value="&quot;Int/Ext&quot;"/>
<attribute name="NAME"/>
</element>
<element name="SW6" library="QuantumOptics" package="SWITCH:E-SWITCH_1??AV2?" value="E101MD1AV2BE">
<attribute name="DESC" value="&quot;Fast/Slow&quot;"/>
<attribute name="NAME"/>
</element>
<element name="SWITCH" library="QuantumOptics" package="MISC" value="M2112LCW01">
<attribute name="MFG" value=""/>
<attribute name="PN" value=""/>
<attribute name="NAME"/>
</element>
<element name="SCAN" library="QuantumOptics" package="TP-0.042B" value="">
<attribute name="NAME"/>
</element>
<element name="U1" library="QuantumOptics" package="SOIC-8" value="LT1678CS8">
<attribute name="NAME"/>
</element>
<element name="U3" library="QuantumOptics" package="SOIC-14" value="LT1679CS">
<attribute name="NAME"/>
</element>
<element name="U2" library="QuantumOptics" package="TSOP-6" value="DG468DV">
<attribute name="NAME"/>
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</board>
</drawing>
</eagle>
