[Elecraft] K3 and IC- 2KL; negative voltage modification

[gdaught6 at stanford.edu]

Roland wrote...

> I would be also very interested in the interface you will use for band
> switching of the 2KL.
> I use an AT500 tuner and I'd like to do the bandswitching from the K3, but i
> couldn't find any
> decoders in the web.

I built one to switch my 2KL/AT500 from a Yaesu FT1000MP MkV Field.  All I had 
to do to make it work with my K3 was to change the plug on the radio end, and steal 
some 12VDC power from the jack on the back of the K3 [The Yaesu had power 
available on the accessory jack.]  I can come up with a schematic and parts list if 
anyone is interested.

vy 73,

George T Daughters, K6GT
CU in the California QSO Party (CQP)
October 3-4, 2009