I don't think the clicks have anything to do with the transformer mounting. On my amp it occurs when the transistors heat up. Keeping the fan on a higher speed will eliminate this clicking however then you have to listen to fan noise. Perhaps Elecraft has a fix for this but I have not used the amp enough to pursue it.
John KK9A Craig Buck k4ia wrote: Make sure the transformer is on straight and secured. Mine clicked for a while but has since stopped. On Sat, Apr 21, 2018, 1:35 PM ANDY DURBIN <a.durbin at msn.com> wrote: > I find the "clicks" my KPA500 makes as its temperature changes to be quite > distracting. Part of the problem is that I'm chasing a problem where the > KPA500 changes band spuriously and the thermal clicks sound too much like > the relays re-configuring the LPF. > > > 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? > > > Any other proven techniques for eliminating the thermal > expansion/contraction clicks? (I know the manual says this is normal so no > need to tell me that). > > > 73, > > 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]
