[Elecraft] KPA3 removal

[Martin Sole]

Hi,

I am about to start replacement of the LPA output devices. To do so I 
think I first need to remove the KPA3. Once done can I just operate the 
K3 at low power to prove the LPA? I don;t have the jumper block so would 
just leave the interface block in place. I'm assuming it does much the 
same thing at low power .

Is there a procedure of any sort I can follow?
What bias current should I set R18 and R19 for?

Thanks
Martin, HS0ZED