[Elecraft] K3 tune mode question

[K3JPS]

Well, I finally figured out how to tune this SB-220 using what Elecraft gave
me for now.  FSK-D at 50W is a good place to start; quickly peak tune and
load while keeping an eye on lg and lp seems to work well.  That portion of
the tuning takes me about 5 to 7 seconds to do.  I then bump power up to
100w and then tune for max smoke which is another 3-5 seconds.  Afterwards,
I drop exciter power to whatever output I want while leaving the SB-220 at
its current tune settings. As a result, 100 watts out of the K3 and a good
tune registers about ~790ma lp and about ~250mA lg. It seems like a 10-1
ratio with the 220 on CW/Tune mode; i.e. 10 watts out of the K3 gets me 100w
out of the SB-220... 100w out of the K3 gets me 1000watts out of the amp. I
think all is well at this point!

73 de James K3JPS

On Thu, May 28, 2009 at 11:20 PM, Bob Garrett <rgarrett5 at comcast.net> wrote:

> Jim,
>
> Let's not make this complicated.  Set the K3 to say 10 watts out and tune
> up the SB220.  Increase the output  from the K3 and adjust the SB-220 for
> the output you desire keeping in mind the plate and grid current limits.
>  BINGO, you are good to go.
>
> 73,  Bob K3UL
>