For a short period the wrong instructions sent with the current type of fans.
If you're interested to see if you installed them correctly you can download the current KPA3 manual from the Elecraft web site. I doubt if the installation could have an effect on the noise since you checked and nothing was touching the blades. Ron AC7AC From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Missouri Guy Sent: Tuesday, December 09, 2008 12:37 PM To: [email protected] Subject: Re: [Elecraft] K3 Noisy fans? Thanks Tom (and several others too!), I'll contact Elecraft. Screws tight, but not over-tightened. Finger guards centered. Fans move air in the right direction. Also, nothing touching the blades. I did notice that the instructions said to install some bushings at the corners of the fans. My fans were made so that "bushings" were already part of the fan and bushings were not in the kit....could be a change in supplier or fan model. Also, the instructions (including errata) didn't apply to my fan model. Interesting...and it's got to be a tough job for anyone to keep up with suppliers and all the details that go into producing these kits! My k3's serial is 1719. I just checked the fans again using the TECH-MD PA-FN1 thru PA-FN4, and yes, they do "whine" at all speeds, although sounding different of course with varying degrees of "whine". Listening very carefully when they power-down, I could swear that the fan bearings and/or brushes (if there are any) sound rough. Thanks, Charlie, N0TT
_______________________________________________ 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
