SQ2JRS - słabo szukałeś
https://www.google.pl/search?q=balun+1:1&oe=utf-8&aq=t&rls=org.mozilla:pl
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I najszybciej
http://radiotengkorak.blogspot.com/2012/10/balun-1-1-dan-balun-4-1.html
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https://www.google.pl/search?q=balun+1:1&oe=utf-8&aq=t&rls=org.mozilla:pl
fficial&client=firefox-a&um=1&ie=UTF-8&hl=pl&tbm=isch&source=og&sa=N&tab=wi&ei=Hgn3UIwJ0JiFB83GgdgN&biw=1280&bih=841&sei=Jwn3UJOKFNOWhQfR5oCYBgI najszybciej
http://radiotengkorak.blogspot.com/2012/10/balun-1-1-dan-balun-4-1.html
http://www.m0ukd.com/1to1_HF_Balun_for_dipole/index.php