I have a bad ground balance Potentiometer in my Vista X and it's out of warranty and I live in Australia. I've emailed Deeptech about a month ago but no reply. I'm sure I could replace it myself if I could get one of the newer better quality Potentiometers that they use in the newer Vista X. The older one's like mine had problems. I replaced a Potentiometer in a Whites GMT detector once no problems. I have to max out the Vista ground balance and it still gives a high tone in any ground types. Looking for a part number or where I can purchase a Ground Balance Potentiometer. Thanks