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Old 05-09-2007, 10:06 PM   #1
mummasan
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Default diy stirrer

bought a 80mm 12vdc computer fan at compusa for $10 complete with fancy lights...but the best feature is that it has a switch with three settings

connected the fan to a 9vdc converter, attached to fan to a homemade wooden box that was sitting around, screwed a small piece of pyrex ($3 at HD) on top and I am now stirring a starter for my vienna lager

the best thing about my stirrer is that i didn't need to connect a rheostat (I ignored the on/off switch) - simply plug it in on low and the magnets catch the stir bar easily

the three setting switch for the fan is currently on low and works great with a 1 inch stir bar and a 1 liter flask

life is good

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Old 05-09-2007, 10:22 PM   #2
fifelee
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Sounds sweet. Do you have a part #?

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Old 05-17-2007, 07:03 PM   #3
fritz_monroe
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This is awesome. I'll have to give this a shot. Or better yet, I have a bunch of fans laying around, maybe I'll just connect up a spare rheostat.

But yes, I'd also like to find the part number.

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Old 05-17-2007, 07:17 PM   #4
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http://www.compusa.com/products/prod...m_Blue_LED_Fan
Maybe this one?
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Old 05-06-2012, 02:53 PM   #5
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Do I understand this to work as a magnetic stirrer? You put it under the carboy, and
put a properly encased bar magnet in the carboy?

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Old 05-07-2012, 01:39 AM   #6
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jaimesbeam - you are correct that this ill be used for a magnetic stirrer. However, you wouldn't want to set a carboy on top of one of these. I think the largest size container most people use for magnetic stirrers are the 1 gallon jugs, also pretty common are 2000mL erlenmeyer flasks

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