10 Pcs UF90B Clip-on Ferrite Ring Core Black for 9mm Diameter Cable
Put one of these onto my Samsung TV power cord, quickly resolving some computer EMI interference!  Fits RG6/RG6Q snug.<br /><br />Prior to using them on the TV cord, I placed several on my computer power cord as well as some other power cords including where ever I could on the inside of the computer case.<br /><br />I was previously getting interference on a low VHF frequency on the TV over the air digital broadcast, where the signal would bounce from eight to nine bars down to three to four bars just afte