John and others,
if you want to go for the "lazy" (but more expensive :-)) approach: Difona
started selling K9AY control and balun units.
See:
http://www.difona.de/details.php?&artmatch=HFCLOOPCONT
There are other units from other manufacturers, but the DX-engineering one
is the only one with control unit in that price-range, a.f.a.i.k..
I bought the unit a few days ago. It generates between 3 to 20dB of
difference, depending which direction you switch.
Vy 73
Uwe, DL8OBF
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