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Old 10-02-2009, 08:21 PM
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Terry B
Country living & viewing

Terry B is offline
 
Join Date: Mar 2006
Location: Armidale
Posts: 2,789
Quote:
Originally Posted by AlexN View Post
Terry, what secondary cooler are you using? I've devised my own little plan (being quite the ingenious fellow I am ) Rather than just running a bucket of water under the mount with the pump feeding the water jacket of the ST9E, I'll be putting a dual core radiator in line with 2x120mm fans feeding air through the radiator... this will ensure the water is as close to ambient temperature as possible... every little bit counts
When I bought my camera (second hand) it has a secondary cooler and water cooler installed. The secondary cooler didn't work so I removed it and purchased a new peltier device to replace it. It needs a 30mm square peltier and the closest I could find is a called a TES1-12703 from these guys.
I bought 2 for US$19 plus postage. (so now I have a spare).
I run it with 13.8V from a marine battery.
I think it is a bit more hefty than the one that SBIG uses hence the good temp drop.
My water is just a 20L drum that sits in the observatory and is at room temp. I don't change the water much as I'm on tank water. It seems to stay OK.
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