He may have another one, don't know about that. I do know that it is one sweet machine as I have found silver with it every time out with it. I am using his custom program using Deep Coin with reactivity set at 2 and 14 kHz freq. and 7 disc. It is a hoot. Del turned me onto the O-R-X last year when visiting ,his had the 9" round HF coil, mine is the 5X9.5 inch coil. it is proving to be quite deep in my mild Kansas soil.