There can be another source for "clicking" in the KPA500. See:
https://groups.io/g/Elecraft-K3/message/38986
On 11/13/2024 7:03 PM, Andy Durbin wrote:
I found the thermal clicking to be annoying and I tried to understand what
caused it. I instrumented my KPA500 with thermistors on the heat sink and on
the Z bracket. I recorded these temperatures together with the standard finals
temperature over many hours of KPA500 use.
I could see that the thermal flow between the heat sink and the Z bracket
changed direction and I speculated that this changing thermal gradient was
causing differential expansion and contraction. I planned to put thin mylar
isolation strips between the Z bracket and heat sink and between the heat sink
and the side panel. I thought these would allow the surfaces to slip without
making any noise.
However, my natural procrastination paid off and my KPA500 stopped clicking
before I got round to implementing any fixes.
Andy, k3wyc
______________________________________________________________
______________________________________________________________
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
Message delivered to [email protected]
