I noticed the clicks when the amp was new. Advice was to re-seat the
toroid transformer. That made no difference but the clicks have gone
away. I assume the transformer settled in, if such a thing is possible.
Buck, k4ia
Honor Roll
8BDXCC
EasyWayHamBooks.com
On 7/17/2018 5:37 PM, ANDY DURBIN wrote:
"I'd appreciate a pointer to any discussions of Z bracket clicks. My search didn't
find anything."
I looked again and this time found some discussion here -
https://forums.qrz.com/index.php?threads/elecraft-kpa500-pinging-during-operating.591521/
and here -
http://elecraft.365791.n2.nabble.com/KPA500-Heat-Expansion-Pop-td7075132.html.
Reading between the lines I get the impression Elecraft tried to fix the
problem, found they had not, so wrote in the manual that it is normal.
I'd still like an answer to the question I asked April 21, 2018 -
"To what extend does the thermal design require conduction between the PA heat sink
and the case metalwork? Would the thermal management be compromised if very thin mylar
strips were placed between the heat sink and the case side panel , case rear panel, or Z
bracket?".
Would someone at Elecraft please respond to this.
Thanks and 73,
Andy k3wyc
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