KPA500 fan noise
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*/I have been so happy with the pair of Noctua fans I put on the back of
my K3 very very quite moves a lot of air, so I looked for a way to help my KPA500 cool better because Noctua does not make a fan that will work as a replacement for the fan on the amp. What I did was get a *helper* fan that sits on top of the amp air inlet the model number I chose is a NF-A9x14 PWM92mm I purchased from Amazon it sits on the opening using the silicone feet that are supplied The idle temp before ran at 31c The idle temp helper fan installed 24c ... in the summer when the shack is a lot warmer these numbers are higher. I use the 12v out put from the K3 to power the *helper* fan is always running can't hear it. This helps in so much as I can get into a cw fix a few minutes longer before the big fan kicks in and it sounds like a Tomcat after burners lit before carrier launch. If some one has tried a pair of Noctua fans stacked that could fit the back of amp that would be great these are very well developed fans that are very very quiet moving a lot of air. K3 fans http://www.amazon.com/gp/product/B009NQMESS?psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00 KPA500 *helper* http://www.amazon.com/gp/product/B009NQM7V2?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00 Regards Art ka9zap /* ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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I remember all the flack I got when I when I first posted about the Noctua fans for the K3.They make the K3 nearly silent; It sure would be nice to find a suitable one for the KPA500. I'm glad to see others using them and enjoying the peace and quiet. I may need to try your Helper Fan idea, I have considered ordering a replacementtop for the KPA500 and opening up the slits and putting a screen in their place. From: Arthur Nienhouse <[hidden email]> To: [hidden email] Sent: Friday, September 4, 2015 9:50 AM Subject: [Elecraft] KPA500 fan noise */I have been so happy with the pair of Noctua fans I put on the back of my K3 very very quite moves a lot of air, so I looked for a way to help my KPA500 cool better because Noctua does not make a fan that will work as a replacement for the fan on the amp. What I did was get a *helper* fan that sits on top of the amp air inlet the model number I chose is a NF-A9x14 PWM92mm I purchased from Amazon it sits on the opening using the silicone feet that are supplied The idle temp before ran at 31c The idle temp helper fan installed 24c ... in the summer when the shack is a lot warmer these numbers are higher. I use the 12v out put from the K3 to power the *helper* fan is always running can't hear it. This helps in so much as I can get into a cw fix a few minutes longer before the big fan kicks in and it sounds like a Tomcat after burners lit before carrier launch. If some one has tried a pair of Noctua fans stacked that could fit the back of amp that would be great these are very well developed fans that are very very quiet moving a lot of air. K3 fans http://www.amazon.com/gp/product/B009NQMESS?psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00 KPA500 *helper* http://www.amazon.com/gp/product/B009NQM7V2?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00 Regards Art ka9zap /* ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Arthur Nienhouse
Art:
Thanks for the info on the helper fan. I just bought one from the Amazon link you provided. Strangely enough, heat is never a problem here in the summer as the Central Air always keeps the shack cool (Basement). During the winter is when the shack gets warm as the furnace runs quite a bit and I usually have the door closed so the warm or hot air gets trapped in the shack. Never hurts to keep the equipment cool. Do you have a filter or anything like that to keep the dust out. 73 De Mike VE3YF http://www.ve3yf.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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