Re: Giving my test equipment away?
even if you could build one it is likely that the variance of that one component would make having all the expensive other equipment abit expensive.
Easiest DIY approach off the top of my head is to use tap water or a very large tank. Can get constant temps that way but can't varry input temps. Could try water heat exchanger using house water supply (comes through your cold tap and goes back into your cold water system in your house) should be able to rig something up that it can varry temps. Would be alot better at cooling the flow than a rad.
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