Re: [Elecraft] Quiet fans for K3

, K8TE, SMSgt, USAF, ret. Message: 1 Date: Wed, 3 Feb 2016 16:25:21 -0800 From: Fred Jensen <k6...@foothill.net> To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Quiet fans for K3 Message-ID: <56b29a71.1050...@foothill.net> Content-Type: text/plain; charset=windows-1252; format=f

Re: [Elecraft] Quiet fans for K3

espite the heavy duty cycle. >> >> The most irritating part about the stock fans was the whiney noise they >> would make while spooling up and down as they changed speed. >> >> If you're not a contester, you may never hear the fans, so it may not be >> an issue :) >> >&

Re: [Elecraft] Quiet fans for K3

So, what is noise? It's energy. Some of it goes into the fan and moves air, some is from turbulence off the blades, and some heats the bearing. There are quieter fans that still move lots of air. They have carefully shaped blades and all of the flashing is cleaned off so the edges are

Re: [Elecraft] Quiet fans for K3

Well, there are laws of economics for manufacturers, too. And they are at times more rigid than those in physics. Yes, I've been doing thermal design for 25 years. You give me a big enough pile of money, I'll deliver your target temp at target location, with So, what is noise? It's energy.

Re: [Elecraft] Quiet fans for K3

My K3 has fans? I admit, I'm all headphones, all the time. I'm vaguely aware that my KPA500 has a fan, I sometimes hear it in the RTTY Round-Up. I once had to explain the Fundamental Axiom of Engineering to a USAF General who was continually dissatisfied with the schedule increases with

Re: [Elecraft] Quiet fans for K3

Exactly right, Clay. It is, indeed, a matter of compromise between cost and how many customers care about whatever the characteristic you're trying to optimize. At least 90% (and 100% of my serious operation) is wearing headphones, and the times I'm using the speaker I'm monitoring while in

Re: [Elecraft] Quiet fans for K3

a pleasure to listen to. But then again I hear things others don't and not hear things others do. From: Brendon Whateley <bren...@whateley.com> To: Reflector Elecraft <elecraft@mailman.qth.net> Sent: Wednesday, February 3, 2016 12:31 PM Subject: Re: [Elecraft] Quiet fans f

Re: [Elecraft] Quiet fans for K3

ay not be > an issue :) > > Dave Hachadorian, K6LL > Yuma, AZ > > > > -Original Message- From: drewko > Sent: Saturday, January 30, 2016 3:34 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] Quiet fans for K3 > > What are the current options for quiet fans for th

Re: [Elecraft] Quiet fans for K3

Hi Drew, look here please: http://ok1rp.blogspot.cz/2015/08/elecraft-k3-fans-noise-fp-high-temp.html Hope it helps, 73 - Petr, OK1RP - http://ok1rp.blogspot.com -- View this message in context: http://elecraft.365791.n2.nabble.com/Quiet-fans-for-K3-tp7613325p7613375.html Sent from the

Re: [Elecraft] Quiet fans for K3

Update: measured the fans and they're 60mm.  Jim AB4AC Jim Finan ‎ Sent from my BlackBerry 10 smartphone.   Original Message   From: Jim Finan Sent: Saturday, January 30, 2016 6:19 PM To: drewko; elecraft@mailman.qth.net Subject: Re: [Elecraft] Quiet fans for K3 I use Noctua fans for most

[Elecraft] Quiet fans for K3

What are the current options for quiet fans for the K3? My original fans are pretty quiet but at this time of the year when the windows are closed and the ambient noise level is nil, the fan noise really starts to bug me. It's the very slight rattle they make when they start winding up.. (In

Re: [Elecraft] Quiet fans for K3

This was discussed extensively in the past including alternate brands, model numbers and sources. It's somewhere in the archives and better than starting over from scratch. 73, Guy K2AV On Saturday, January 30, 2016, drewko wrote: > What are the current options for quiet

Re: [Elecraft] Quiet fans for K3

mA From: drewko <drew...@verizon.net> To: elecraft@mailman.qth.net Sent: Saturday, January 30, 2016 5:34 PM Subject: [Elecraft] Quiet fans for K3 What are the current options for quiet fans for the K3? My original fans are pretty quiet but at this time of the year when the w

Re: [Elecraft] Quiet fans for K3

PM To: elecraft@mailman.qth.net Subject: [Elecraft] Quiet fans for K3 What are the current options for quiet fans for the K3? My original fans are pretty quiet but at this time of the year when the windows are closed and the ambient noise level is nil, the fan noise really starts to bug me. It's

Re: [Elecraft] Quiet fans for K3

nt: Saturday, January 30, 2016 6:19 PM Subject: Re: [Elecraft] Quiet fans for K3 This was discussed extensively in the past including alternate brands, model numbers and sources. It's somewhere in the archives and better than starting over from scratch. 73, Guy K2AV On Saturday, January 30, 20

Re: [Elecraft] Quiet fans for K3

01/‎2016 8:35 AM To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> Subject: [Elecraft] Quiet fans for K3 What are the current options for quiet fans for the K3? My original fans are pretty quiet but at this time of the year when the windows are closed and the ambient noise level is

Re: [Elecraft] Quiet fans for K3

e spooling up and down as they changed speed. If you're not a contester, you may never hear the fans, so it may not be an issue :) Dave Hachadorian, K6LL Yuma, AZ -Original Message- From: drewko Sent: Saturday, January 30, 2016 3:34 PM To: elecraft@mailman.qth.net Subject: [Elecr

Re: [Elecraft] Quiet fans for K3

to check them? >> I would suspect there may be a problem and either lubrication or a >> mechanical issue may be the culprit? >> Sewing machine oil may help. >> 73 >> Gary >> >> -Original Message- >> From: "drewko" <drew...@verizon.net

Re: [Elecraft] Quiet fans for K3

om: "drewko" <drew...@verizon.net> > Sent: ‎31/‎01/‎2016 8:35 AM > To: "elecraft@mailman.qth.net" <elecraft@mailman.qth.net> > Subject: [Elecraft] Quiet fans for K3 > > What are the current options for quiet fans for the K3? My original fans > are pretty

Re: [Elecraft] Quiet fans for K3

@mailman.qth.net Reply To: drew...@verizon.net Subject: [Elecraft] Quiet fans for K3 What are the current options for quiet fans for the K3? My original fans are pretty quiet but at this time of the year when the windows are closed and the ambient noise level is nil, the fan noise really starts to bug me

Re: [Elecraft] Quiet fans for K3

I never hear the fan on my KXPA-100 - Ha! Of course it doesn't have one but works fine for up to 110w with my KX3 or K3/10. Made several 6m-SSB contacts with 80w for the ARRL VHF Contest this weekend. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: