[Elecraft] ATU question

[Tom Hammond NØSS]

Tim:

>1 - As I understand it, if I attached the K2/100 to my LDG AT-11MP
>tuner, the K2/100 would drop to twenty watts whenever I tuned. Once it
>tuned at twenty watts I could then drop down to 5 watts and operate QRP
>through the LDG - right?

Heck, unless the LDG requires a minimum of 20W to tune, you sould even go 
lower... say 5W-10W to do the tuning.

>2 - I also have an LDG Z-11. What exactly is it about the Z-11 as well
>as the K2's current QRP tuner that does not allow them to be used at the
>higher power?

The relays, the capacitor working voltage, the physical size of the 
toroids, and  to some extent, the gauge of the wire in the inductors are 
all limiting factors.

>I'm just asking a straight forward "how does it work" kinda' question!

I don't expect the Elecraft QRO tuner to be significantly different in 
basic design, but it will use heavier-duty relays, caps with a higher 
rating, and probably larger wire and toroidal cores, to handle the 
increased power.

73,

Tom  N0SS