Hello, this this is my first time I post a topic. Because I have a problum with my theremin(LV-4 theremin). I use two ways to ground my theremin. One is grounding my theremin with three-holes-socket(the real grounding),and another is using grounding wires which connect my body and theremin. I found that the linearity is changing, especially for high pitch(C5-C7), the second way's high pitch is more expand than the first one. I want to know which one is the real linearity of the theremin. Thanks, sincerely!
P.S Sorry my english is very rough.
P.S.S By the way, I live in Taiwan, and I have learned theremin for one year.