On 5/26/2020 10:22 AM, K8TE wrote: > I > added type 31 ferrite snap-on cores to the 240 VAC, the "high" DC voltage, > and control lines at the power supply. Hi Bill, For 10M, I suggest three turns through a #31 clamp-on that's large enough to hold the turns. Two turns is about right for 6M. 73, Jim K9YC