On Thu, Nov 12, 2009 at 1:49 PM, Russ Tobolic <erusst at yahoo.com> wrote: > K4SAV mentioned that obtaining ferrite cores is sometimes a problem. Are you running high power thus the need for RG213? Would a length of RG-8X sufficient for looping through the ferrite cores easily handle full legal power on 1.8Mhz? Barry N1EU