Dont mean to jump in but I'd be the difference would be significant. Air flow into a low pressure area causes it to expand and thus cool down (similar to the heat exchange method used in air conditioners), and the reverse for air stuffed into a high pressure area (compresses, heats up). Also, in any air cooling system the most important item is arguably the design of the _exhaust_ port - it has to be configured in such a way as to most efficiently produce a pressure differential (which is what actually moves the air) in area of the thing you need to keep cool. This is a critical design factor in engine cooling systems in aircraft for example (interestingly enough, most of the attention is on the holes in the bottom/side/top of the cowling, not the big holes in the front).
In the K3 box, it doesn't look like air getting pushed in from the back has as many clean escape areas as it would the other way around. Just eyeballing mine that is. But even if so, you still have to consider the contribution of the heat exchange situation introduced by the fan in all that too. I'd be willing to bet it'd be a noticeable difference.... 73, LS W5QD -- View this message in context: http://n2.nabble.com/K3-Cooling-tp4855994p4856246.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
