mavtricks71, by "gold", I'm assuming you mean gold nuggets, right? (as opposed to gold jewelry, gold coins, etc...).
If so, yes, there are machines that are made to be a cross-over, where, with the proper tweeking of the control knobs, you can go back & forth between nugget hunting one day, and coin/relic hunting another day. But a machine designed to be a cross-over, with the flick of a few switches, will excell in neither arena. Ie.: there will be better coin/relic machines, and there will be better nugget machines.
you see, the goals of each venue are almost diametically opposed. A machine for nugget hunting is designed from the ground-up, to excell in teeennnsssy little pinhead sized nuggets (the most common size found). But a coin/relic guy, quite frankly DOESN'T want to hear every little flick of birdshot, staples, etc... He wants to reject the little teeny foil (or whatever), and excell in depth and TID on coin-sized targets. So machines made, from the ground up, for that purpose, are more suited for coin/relics.
Yes a few cross-over machines exist, but they will be out-done by specialty machine's in each class.
[/quote Boy you guys are well informed and a bunch of help im glad i Joined this forum... thanks for all the replys, I Deffintly would like a Gold Nugget Detector thats my goal !