Managed to break the sensitivity and threshold knobs off of my GT. Me being the diy'er type desoldered them hoping to find a part number but no luck. What I have figured out is they are both alpha 100k parts, one audio one linear with type 30 terminals. I'm not an electronics guy so I'm a bit stumped at this point. I can't seem to decipher a part number from the code explanation on Alphas site. I haven't tried contacting Minelab repair yet, thought I would ask for help here first. Hopefully I haven't painted myself into a corner. Thanks.
Jim
Jim