[Elecraft] KPA-1500 failed!

[Wes]

I think a two-tone test is the best evaluation tool..  The generator is built 
into the K3 if you have another receiver that you can use to listen to the amp 
output.  I use an SDR-IQ which is a very nice tool for this but any other SDR 
would do.

Sorry for your pain.

Wes  N7WS

On 2/16/2019 7:28 AM, lists at w2irt.net wrote:
> I was operating in the ARRL-CW contest this morning and on 20m, with a 1.2:1
> SWR on the Yagi, all of a sudden I saw my power drop to about 450-500W with
> about 40W in. Worked a few stations but not as easily as when I turned
> everything on this morning. Switched over to phone and made a few contacts.
> Audio is fine barefoot with 100W out of the K3s-which suffered blown finals
> itself during CQWW SSB last fall, but with the amp in I got reports that my
> audio was badly distorted.
>
> Before I send it in, is there anything I should look at or any diagnostics I
> can easily perform? For the cost of this, I'd have thought protection would
> have kicked in to prevent anything untoward from happening. I'm in complete
> disbelief, to be honest.
>
> ---------------------------------------------
> 73 and Good DX
> Peter, W2IRT
>