Hi I have a bunch of amidon T200-2 in stock. Have anyone idea "if" I can use this to wind my own beverage balun? I know people says I need to look into the ON4UN book, which says use a FT-50-43 ferrit core. PM to LA6FJA <mailto:la6fja at gmail.com> mailto:la6fja at gmail.com 73 LA6FJA Stein Roar