[Elecraft] KAT100 Question

[Brian Machesney]

If you're going to use a "balun" as a "transformer," be prepared to 
accept heating of and consequent power loss in the balun core. 
Traditional, transmission-ine baluns are designed to be operated 
into a specific set of impendances. Operation into other loads upsets 
the current balance, causing magnetic flux to develop in the core; 
see Sevick's book for an excellent treatment of this subject.

I have not investigated whether "oversizing" the cores (vs. the 
power level the "traditional" balun should tolerate) would help by
ameliorating the deleterious effects of heating.

Brian Machesney, K1LI

reference text:

"...if I use ladder line and a balun with a short piece of coax into the 
shack to a wide range tuner preferably a wide-range T-network tuner, 
I can work the WARC bands as well."