Feedback from NuWave Phone Converter at RCA inputs


The RCA inputs on Phone Converter seem awful sensitive. If you even touch them when on you get feedback. I have been having one channel drop out and I thought it might be turntable because I have an old Technics SL-1300 but when I hooked it up to Sprout I had no issues. This seems to be a grounding issue turntable is 35 years old and I don’t have newer table to plug in to see if turntable is at fault any suggestions.