Existuje financne mene narocna nahrada za tyto audio transformatorky? http://cz.farnell.com/triad-magnetics/sp-70/transformer-audio-0-05w-audio-type/dp/1824902 Pro oddeleni vstupu zvukove karty a SDR prijimace. http://www.rfsystem.it/shop/download/Audio_isolator.pdf MG