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Prototype buy list
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StoreQuantityItemUnit priceTotal priceURL
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Sparkfun1Arduino 32u42525https://www.sparkfun.com/products/10999
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A pre-made 3.3v arduino board (for the prototype only)
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240x40 peltier1530https://www.sparkfun.com/products/10080
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For cooling!
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3Maxim DS18B204.2512.75https://www.sparkfun.com/products/245
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Temperature sensor (we need more than one for testing)
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2RFP30N06LE MOSFETs0.951.9https://www.sparkfun.com/products/10213
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To control cooling and heating
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21N4001 diodes0.150.3https://www.sparkfun.com/products/8589
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To prevent current flowing in the wrong direction.
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1ATX female connector1.951.95https://www.sparkfun.com/products/9498
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To connect the power
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1ATX breakout board4.954.95https://www.sparkfun.com/products/9558
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To connect the power
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1Resistor kit7.957.95https://www.sparkfun.com/products/10969
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Viva la resistance!
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2Male pin headers2.955.9https://www.sparkfun.com/products/117
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2Female pin headers1.53https://www.sparkfun.com/products/115
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4Hook up wire (stranded)2.9511.8https://www.sparkfun.com/products/8865
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Digikey
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1RES 1.0 OHM 10W resistor1.561.56http://www.digikey.com/product-detail/en/RS0101R000FE73/RSD-1.0RCT-ND/1166575
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For heating!
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1RWM 68 OHM 8W resistor44http://www.digikey.com/product-detail/en/RWM063468R0JS09E1/RWMC-68-ND/2712606
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Alternate, because the other one might suck (but is cheaper)
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Metals Depot
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1F4122 1 foot of 1/2” by 2” aluminum flat bar88http://www.metalsdepot.com/products/alum2.phtml?page=flat&LimAcc=%20&aident=#p118
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Where the PCR tubes will sit.
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Amazon
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1ATX power supply2424http://www.amazon.com/Logisys-Corp-Bearing-Supply-PS550E12BK/dp/B004MU8VCS/ref=sr_1_2?ie=UTF8&qid=1360655541&sr=8-2&keywords=atx+power+supply power supply
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A power supply for all devices except the gel electrophoresis
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2CPU cooler fan11.3422.68http://www.amazon.com/StarTech-com-60x65mm-Socket-Cooler-Heatsink/dp/B00006B8DB/ref=sr_1_5?s=pc&ie=UTF8&qid=1360736348&sr=1-5&keywords=cpu+cooler
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Grand total price:165.74+ tax and shipping
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^------remember that this is the prototype price, which is much higher than the production cost.
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We also need some actual PCR tubes!