I would like to build a 2:1 balun on a 1 inch pvc pipe form. Not metal core. I wound 12 bifilar turns on my 1 ince pvc. I think I need 10 turns and 14 turns for 2:1. Using 12 gauge wire. Do I bifilar them also and let the rest of the 4 turns out by themselfs? I hope this makes sence. Murf n7uvh