kaolinwasher
Well-known member
I just got a TDI SL great machine and i have been messing around trying to find the best settings for gold & silver and what i have found is if the GB is at 8-9 you get better depth on silver and my large gold ring will come in as a low tone but on gold if i set the GB to 4.5-5 i get gold better I have a gravle road that is full of mineralized stone and i have a peanut size copper nugget and i got the best depth by turning the GB to 9 wich made a slight nise when lopwering to ground but not badd and a PD of 13.5 got that copper the best gets a silver dime 8 inches good singal and soft at 9 inches i noticed my large gold ring at GB 7 cuts out in both high or low conductors so watch out for that but love the way it cuts thru the ground