Remember that there is an option on the KPA100 to have the fan run continuously at low speed. This keeps it cooler and cuts down on number of times it kicks into high gear. Still sounds like a 747 winding up for take-off in those instances, but it does help.
Maybe a large, quiet, external muffin fan lying on top would add enough cooling to prevent it from running?
73 de dave ab9ca/4 On 8/23/14 6:31 AM, John Farmer wrote:
Hi Sverre, I did have a look at this but discovered that the options for alternative 30mm fans are limited compared with larger sized case fans. There's no Noctua 30mmx10mm fan. The Evercool fan in the KPA100 runs at 8000rpm. I suspect these smaller fans are inherently noisier. The timbre of the sound they emit in full flight sounds harmonic rich and higher pitched, so it's more noticeable if you have well preserved high frequency auditory acuity :). I use my K2/100 for QRP only, because if I work CW at 20W or more, the fan runs pretty much continuously on Tx. 73, John VK7JB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
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