[Elecraft] KPA500 Clicks

[Steve AI9T]

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

-- 
73

Steve AI9T

http://www.ai9t.com

AI9T DX Cluster

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