[Elecraft] K2: KPA100 & KAT100 in EC2 enclosure

[Don Wilhelm]

Randy,

The KPA100 and KAT100 in an EC2 enclosure works FB.
Order the KAT100-2 and the EC2 case.  The KPA100 cables (except for the 
speaker)  plug into the headers on the KAT100-2 board, so no change to 
the KPA100 are needed.  The info by Lyle Johnson was for the KPA100 
alone in the EC2, adding the KAT100-2 makes the task easier - just plug 
it in and connect a BNC cable from the K2 to the KAT100 AUX RF input.

You may want to change the 15 uH inductor on the KIO2 AUX2 board to a 
toroid - 12 to 14 turns on an FT23-43 or FT37-43 core will do, but the 
smaller core fits better.  I have seen several of those small chokes go 
open when used with both the KPA100 and KAT100 mounted externally.

73,
Don W3FPR

Randy Moore wrote:
> I'm considering adding the KPA100 and KAT100 to K2 #337, and building 
> them together in an EC2 enclosure so that I can leave my K2/10 in its 
> QRP state with the PA and ATU outboard.  I have found info on this at 
> http://www.kk7p.com/k2kpa100.html and I've downloaded the KPA100 and 
> KAT100 manuals.  Just wondering if anyone has done this recently on an 
> older K2 like mine and if there are any gotchas that I should be aware 
> of.  I know I have to do the A-to-B upgrades (some already done) and 
> upgrade my firmware.  Anything else?  Does this configuration work well?
>
> Tnx es 73,
> Randy, KS4L
>   
>