[Elecraft] K3 powers off when after several minutes of 12W carrier

[Brian Hunt]

My K3 is #4113 factory assembled and delivered in April 2010. I'm pretty sure the bottom cover had never been off when I did the update mods a couple months ago. That's when I asked Elecraft support about it and I assumed it had been added to later #s. I've never had any issues but run mostly CW at either 5 watts or 100 watts. 
73,
Brian, K0DTJ

> On Mar 28, 2018, at 18:02, Mark E. Musick <markmusick at sbcglobal.net> wrote:
> 
> When I built K3 serial #3505 in September of 2009, the kit had thermal pads
> for the LPA transistors.
> 
> Mark, WB9CIF
>