[Elecraft] KPA500 thermal clicks

[Randy Farmer]

I have never heard anything like that on my early kit-assembled KPA500. 
But... I've only used it extensively on CW. It would be interesting to 
know if the clicks are being experienced only under high duty cycle 
usage such as digital modes or if they have also been heard in CW/SSB duty.

73...
Randy, W8FN

On 7/18/2018 6:25 PM, ANDY DURBIN wrote:
> I placed my Android phone on top of my KPA500 and made a recording while making a few cycles of FT8 TX/RX.  The audio files can be found here:
>
> https://www.dropbox.com/sh/amfy3dz8pgl083n/AAAKi2GYripXyIDjiLpJ2hDwa?dl=0