Please post here if Elecraft confirms they have a fix for this. 73 de Sebastian, W4AS
On Jan 27, 2014, at 3:54 PM, Steve AI9T <[email protected]> wrote: > Hi Dave > > I didn't know that Elecraft had a fix for this. I will send Tech Support an > email and ask them about it. My Amp is fairly new. I built the kit last May. > The serial number is 1469. > > -- > 73 > > Steve AI9T > > http://www.ai9t.com > > AI9T DX Cluster > > Version 4 AI9T Telnet: dxc.ai9t.com port 7300 > Version 6 AI9T-2 Telnet: dxc.ai9t.com port 7373 (CW + Skimmer) > > > On 1/27/2014 3:27 PM, Dave Perry wrote: >> Steve, >> >> My KPA500 also has the clicks and pops as it heats up and expands. As I >> recall, Elecraft offers a fix for this. The fix involves replacing the >> metal screws that fasten the heat sink to the chassis. They had to go with >> a larger screw to obtain a tighter hold on the bracket for the heat sink. I >> assume this has been fixed in newer models. My serial number is in the low >> 200s. I have never bothered to install this fix, but the clicks do get >> annoying at times. Is this fix still available? I would think that you can >> search the archives for a discussion on this topic right after the amp came >> out. >> >> 73, >> >> Dave, N4QS >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Steve AI9T >> Sent: Monday, January 27, 2014 1:05 PM >> To: [email protected] >> Subject: Re: [Elecraft] KPA500 Clicks >> >> Thanks for all the comments on the KPA500 Clicks. Looks like I'm not the >> only one that has noticed it. I guess I won't worry about it. >> I have had the AMP for a few months now and have been very satisfied with it >> so far. >> >> Thanks again! >> >> -- >> 73 >> >> Steve AI9T >> >> http://www.ai9t.com >> >> AI9T DX Cluster >> >> Version 4 AI9T Telnet: dxc.ai9t.com port 7300 >> Version 6 AI9T-2 Telnet: dxc.ai9t.com port 7373 (CW + Skimmer) >> >> >> On 1/26/2014 3:03 PM, Steve AI9T wrote: >>> During a couple recent RTTY contest I have noticed that my KPA500 is >>> making a noise. It kind of sounds like a relay clicking in and out. >>> When I first noticed it I thought it was a fan relay or something to >>> do with the fan. But after hearing this longer it seems to be related >>> to the temp. It clicks in an out around the temps of 62C and 56C. It >>> kind or reminds me of an old radiator warming up and cooling off. I >>> took the cover off yesterday and checked the nut that holds the >>> transformer in place. I thought maybe that spring washer might be a >>> little loose but it wasn't. >>> >>> Anyone else ever notice this? Hopefully it is not a serious problem. >>> >>> Thanks ______________________________________________________________ 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
