This came up recently w/ the K3 as well, and perhaps a year or two
back. It /sounds/ like a tiny relay is clicking in the K3 on t/r
switching even though it's all solid-state. Wayne speculated that the
sound might be coming from relay springs re-balancing slightly in response
to associated voltage changes on the power rails. I don't believe it's
been tested further. Perhaps you're hearing something similar from the
KPA500. -kb7psg
On Mon, 27 Jan 2014, [email protected] wrote:
FWIW, I've noticed these clicks from within my KPA500 too. I always
assumed they were thermal expansion and contraction of hardware within
the amp. I ignore them because they have
never been associated with any problem with the function of the amp.
Besides, I don't know how you'd begin to try to isolate exactly
which bit of metal in there is doing the clicking to be able to do
anything about it.
73,
John
VK7JB
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