[Elecraft] K2, KAT2 and displaced choke balun feed

Don Ehrlich ehrlich at clallambroadband.com
Thu Sep 6 18:05:22 EDT 2007


I had to design and build my own because I wanted to run up to a KW through 
it.  If I had to buy new matched roller inductors they alone would cost over 
400 dollars.

I found most of what I needed in my junkbox or on Ebay but even so the parts 
and materials alone were well over 300 dollars ... and I laid out and built 
my own circuit board, bent my own aluminum, and made many component 
compromises.   Any commercially built balanced autotuner for a KW would be 
*very* expensive.  Many hundreds of man-hours later for construction and 
software programming have finally got me what I wanted and I am very happy 
with it.  But I don't ever expect to see one on the market that is easily 
affordable for most hams.

Don K7FJ

-----------------------------------------
> However, it would be so nice to have a wide-range balanced  autotuner.   I 
> couldn't find one on the amateur market.


>> Though this works for me at the moment, it should be nice if  someone 
>> (Elecraft?) could come up with a stand alone truely  balanced automatic 
>> antenna tuner.
>>
>> 73,
>> Roelof Bakker, pa0rdt
>> Middelburg, Netherlands
>> JO11tm



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