[Elecraft] Rf in the shack distorting audio - the results

[Darrell Bellerive]

On February 22, 2007 09:44 am, Don Wilhelm wrote:
> Look at the Elecraft BL2 for a switchable 1:1/4:1 balun, it will handle up
> to 250 watts.  If you do not need the switchable arrangement, the BL1 can
> be constructed for either a 1:1 or a 4:1 configuration and its power rating
> is 150 watts.  A convenient ground lug is located on the balun output side.

How can a balun be switchable from 1:1 or 4:1? Surely the characteristic 
impedance of the windings will be missmatched at one of the settings.

-- 
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada