[Elecraft] KAT500 update

[Wayne Burdick]

We originally had two antenna jacks on the KAT500, with one of them  
switchable between balanced and unbalanced.

Recently we decided that a third antenna jack would provide greater  
utility overall. (In my case, I'll be keeping a dummy load on the  
third jack.) All three jacks will be unbalanced (SO239).

We're hoping to add a high-power, high-performance balun to our  
product line sometime next year that will serve the needs of those  
using balanced lines.

73,
Wayne
N6KR