Old 08-26-2007, 06:59 PM #1
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Default cooling

is there any way to cool down a x105 so that the duty cycle will be longer?
or is that recommended ?

Here is a link to some local computer shop; http://kisildalur.is/?p=2&id=469

as you can see it's a fan with some cool led's in it..
well it's local price is 14 dollars

it says TEC is this just the company witch makes this or is it TEC?


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Old 08-26-2007, 07:12 PM #2
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Default Re: cooling

I suppose it's possible to make a mounting with TEC device installed. The pointer would be inserted and clamped into the "external heatsink. *It would add size and weight but if you are using it more for CW lab type work, it wouldn't make any difference.
You don't want to get it too cold so as to condense water, just pump away the heat.

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Old 08-26-2007, 09:07 PM #3
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Default Re: cooling

@ Hemlock Mike, I have looked via search for anything to do with TEC's or petliers. Size voltage cost and so on. Also goolged for them without much success.
The only ones I have found that I get hold of at the moment are these ones on ebay.

http://cgi.ebay.co.uk/ws/eBayISAPI.d...:IT&ih=010

Are these the same/similar to the ones you guys are using?

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Old 08-26-2007, 09:13 PM #4
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Default Re: cooling

Rog,
The ones we ordered off of ebay are much different, and require much less power. Do a search for SP1950 on ebay and it will pop right up.
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Old 08-26-2007, 09:30 PM #5
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Default Re: cooling

Good man Gazoo that is exactly what I wanted!.....the postage is a bit swingeing, but not as high as some postage I have come across *:-[

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*edit...ordered and paid for *
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Old 08-26-2007, 09:44 PM #6
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Default Re: cooling

These little buggers are amazing...worth every penny. In fact I ordered another one after I received the first one because I liked it so much. The only thing in the ebay specs...it says it draws a max of 4 amps. This is not true at all. At 5 volts it draws a little over an amp, and condensates, which is a good thing because it will freeze a small cap full of water quickly.

For my red GB diode, the peltier is only pulling 200ma and keeps the diode cool, and does not condensate. This is equal to powering it with one nimh AA battery.

When I receive my second peltier, I will be experimenting more to try to get an idea of how much heat sinking it will require running it at low currents. I think it will be easy to use these in a modded flashlight.
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Old 08-26-2007, 09:55 PM #7
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Default Re: cooling

That all sounds very good for what I have in mind, thanks.

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Old 08-27-2007, 12:23 AM #8
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Default Re: cooling

Rog8811 --

Those TEC you show are what I'm using now for experimentation. The mini's we have would work well for you with proper assembly. As I said, you don't want too much cooling and remember that heat produced by the TEC also has to be dumped.
Turn up the red on your spiro !!!!!

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Old 08-27-2007, 10:27 AM #9
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Default Re: cooling

I notice that the peltier is described as double stacked, for the uninitiated *that would be me* what does that actually mean?

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Old 08-27-2007, 07:39 PM #10
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Default Re: cooling

Stacked means a small peltier assembled on top of a little larger peltier. One pumping into the other !! Double cold. The two modules are wired in parallel and work together. You can see the two levels in the pictures I believe.

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Old 08-28-2007, 12:41 PM #11
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Default Re: cooling

Thanks HM, that makes sense now, for some reason I thought about cold side to cold side, hot side to hot side and completely forgot hot side to cold side.....the only one that would work :-[

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Old 08-28-2007, 02:05 PM #12
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Default Re: cooling

Quote:
Originally Posted by Gazoo
Rog,
The ones we ordered off of ebay are much different, and require much less power. Do a search for SP1950 on ebay and it will pop right up.
I did a search on sp1950 but it did not find any matches. Any chance of a direct link?

Cheers
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Old 08-28-2007, 04:54 PM #13
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Default Re: cooling

@ xgeek, I think the problem is that I bought the last one

Here is the link though, you could add it to you watch list to see if he lists some more.

http://cgi.ebay.co.uk/ws/eBayISAPI.d...7368%26fvi%3D1

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Old 08-28-2007, 04:59 PM #14
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Default Re: cooling

Sorry for double post but have a look at the names of buyers on that listing, any of them ring a bell?
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Old 08-28-2007, 10:45 PM #15
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Default Re: cooling

Starts looking like a who's who from LPF ;D

He ships real fast too.

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Old 08-29-2007, 12:05 AM #16
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Default Re: cooling

Quote:
Originally Posted by rog8811
@ xgeek, I think the problem is that I bought the last one

Here is the link though, you could add it to you watch list to see if he lists some more.

http://cgi.ebay.co.uk/ws/eBayISAPI.d...7368%26fvi%3D1

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LOL rats. I will keep an eye out for the next batch. Thanks anyway.
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