You're right that it is uncommon. Properly installed, the fans are completely inaudible. I believe all the instances where fan noise has been encountered were traced down to some kind of assembly error. Probably Don could point you in the right direction. (Of course, a bad fan is possible as well. Just never heard of one on this list.)
Bill W5WVO ----- Original Message ----- From: "eurom6" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, July 06, 2008 7:35 PM Subject: Re: [Elecraft] k3 fan noise > > Just finished my K3/100 and all's well but the fan noise is an aggravation. > If I loosen the screws and hold the fans, no noise but when assembled it > sounds like the old card on the spokes of our bikes 50 yrs ago (obviously > much softer). The back of the K3 is acting like a sounding board for the > fan and it amplifies and resonates. Felt washers didn't help, tightening > hardware didn't help. No fan wires in the way. I noticed this is not a > common problem so I wonder if I have an out of balance fan/motor. John > N0GBR > > > H. Cary III wrote: > > > > K3-100 #178 went together flawlessly, well almost, but it was smooth. Was > > missing two standoffs and two screws for the fan assembly on the KPA-100. > > When I did the first fan check, the relay or relays clicked but only one > > operated very quietly (short lead) ...disconnected it as instructed, > > installed the KPA-100 module and reconnected the fans & panel per > > instructions. Both fans operate this time but "WOW, is it every loud!" > > - my wife came in from the next room wanting to know what was making the > > noise. Her facial reaction when she realized it was the K3 clearly said: > > "This is the latest and greatest?" > > > > Is it the missing hardware or are others experiencing noisy fans, too? > > I've got to fix this, both for my sanity and to save face! > > > > Thanks for the help and Happy New Year. > > > > 73, > > Cary, K4TM > > K2-100 #5266 > > K3-100 #0178 > > > > > > _______________________________________________ > > Elecraft mailing list > > Post to: [email protected] > > You must be a subscriber to post to the list. > > Subscriber Info (Addr. Change, sub, unsub etc.): > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > Help: http://mailman.qth.net/subscribers.htm > > Elecraft web page: http://www.elecraft.com > > > > > > -- > View this message in context: http://www.nabble.com/k3-fan-noise---lots-of-it.-tp14543796p18308741.html > Sent from the Elecraft mailing list archive at Nabble.com. > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
