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  1. The chart shows current GPX-6000 coil sizes, weights, and areas. I hope this chart can help you find out which coil to bye in the future. Phrunt- the 6 X 8.5 specifics have been added to the chart.
  2. Well, I figured out what that little dimple is on the front end of the 14 inch coil - it makes a perfect nugget holder so they don’t roll off for pictures, and they fit the little dimple perfectly. This thing is really good at finding them, I found patches all over the place, deep ones too!😉 First weekend out with it, And it’s finding birdshot all over the place. At least I’m using it right! I really like this coil and see being on my detector a lot. One thing I figured out with using it, don’t extend it all the way forward, sure makes the front and lighter. It’s also working well with my gear, pick stays in a holder behind me. I could also use my cell phone for mapping while using the detector, Guess that’s what the DD is best at. One other suggestion, I tested it and was able to use an Apple tag on the detector to help track it if it ever gets stolen. I imbedded it in the bottom of the case, and the tag does not seem to interfere with the detector, Even when using the mono coil. Just a thought if you were concerned about somebody “borrowing” it. If you’re worried about it being on the detector during use, another option is just put it in when you store the detector.
  3. Responding to Peter in SA. Back in the mid 1980s I had been involved in the introduction of the Minelab GS15000 metal detector at Wedderburn in central Victoria. The early Minelab crew were a bunch of clever people from Adelaide university who got together to produce an Australian made metal detector which could challenge the big American companies. Wedderburn was chosen for testing and development due to its reputation of having very mineralized, difficult soil conditions. A number of Australian built detectors had failed to live up to expectations, defeated mainly by the hot soil conditions in Western Australia and central Victoria. The GS15000 proved to be a better machine for these conditions than its competitors and soon gained acceptance throughout the gold detecting fraternity. Craig Hughes, who was part of that early team came up with the idea of a coil towed behind an ATV. An area near the famous 'potato patch' just out of Weddurburn was chosen for testing, using a Honda three wheel ATV (horrible unstable beast of a machine). The coil was fairly small, but I can't recall the exact size. A GS15000 provided the electronics, and although noisy, did work with a small bit of gold recovered. (a few grams) Even though the manual ground balance made for uncomfortable detecting, the concept had been proven, much to our surprise. In 1987 I was involved with the testing of the GT16000, which was the first ever automatic ground tracking. This machine was a major breakthrough and really put Minelab on the map as a serious contender for the title of the world's best gold detector. It dawned on me that the feasibility of tow detecting was a reality now that a detector could stay balanced automatically, and I contacted Don McCoy, one of the original Minelab team and asked him to build me a coil suitable for towing. The result was a rectangular coil about 3' x 2' which was very stable and sensitive. I purchased a Yamaha 4 wheel ATV as a tow vehicle and with the addition of a suppressor managed to keep the EMI to a minimum. The first day of testing yielded a 6oz lump, which was a big surprise, and paid for the ATV in one hit. I sent Don some nice specimens as payment for the coil. I later sold that coil through Miners Den in Melbourne when the SD2200 was introduced. The SD2200 was of course the first auto ground tracking pulse induction detector, and naturally I soon made plans to adapt this concept to 'sledding'. John Hider-Smith, Ian Jaques and myself had been involved in prototype testing of Minelabs first pulse induction detector, and Bruce Candy had taught john how to wind mono coils. One of Johns coils was used in the first PI tow coil testing where we discovered that a 4 stroke engine was not feasible due to the high susceptibility of PI to EMI. With experimentation we discovered that diesel was the way to go as no spark was required for the engine to run, and an isolation switch for the alternator solved any EMI problems. We later used a GPX4000 which worked even better. I have to close now due to having to shut down internet but will add further details later.
  4. I have 2 coils on my Tejon. 8x9 conentric I use in high trash areas and parks (same thing) and a 10x12 i use for woods and fields. I got lazy and left the widescan on and hit a local park and came across bottle cap after bottle cap and could not find a good tone break to cut them out without losing too much range. I saved a couple and tucked them in my back yard 6" down and did a quick test. I set my 2nd discrim for break on the widescan and the primary for the concentric and there is a huge jump between them. Both discrim match up on other items such as coins and rings, pull tabs. Note that both coils actually ground balance the same and the widescan can pick up the tiniest pieces of lead and foil. I have found lead pellets from a pellet gun 4-6" down with it. I can also place a cast iron hammer head half over a dime and still hear just the dime though broken signal It's there. So I am really stumped on the bottle caps. Maybe someone here knows why.
  5. I didn't really know where to put this but for Nel coil fans such as myself it looks like they're coming back! I really hope so. They have updated their website with this notice. It's sad what has happened to them but I'm glad it looks like they're going to survive it as a company.
  6. Hi all, I just ordered a NEL Thunder coil for my also new Notka Makro Simplex+. This coil has a straight shape center receiving area. Other coils have a football (American type) shaped receiving area. I can't find any discussion on these two types of constructions. Does anyone know what each shape does? Like specifically, bennifits and differences? I can only speculate as I'm not very knowledgeable on this. I am thinking the NEL Thunder may have even sensing front to rear, and maybe narrower field which may be able to separate slightly better. The football shape coils I am thinking, may have a different field shape and may do something different. All this is speculation. However, it is this Thunder coil that is different than most and I'm curious as to what this coil does in it's detection field. For me, the coil has a lighter weight and larger area than other options. I'm searching dry sand and open park areas. Maybe even waist deep water. This shape and size is ideal for me. And the construction is new to me, just so you know. Thanks! TG
  7. GPX 6000 coil makers information Nugget Finder Xceed 6000 series Nugget Finder has now announced there will be 3 Minelab approved coils in the Xceed 6000 range at this stage. It looks like there will be Mono coils in 8x6", 12x7" and 16x10" sizes, which represent some great options for bushy or tight spots! If you would like to be kept in the loop regarding pricing and release date, visit our website here and click on the size or sizes you are interested in and hit the 'Notify me' button to receive news as it comes in! Coiltek Goldhawk Gpx6000 Series Coils Will be available in 3 sizes - 10x5", 9" and 14x9" Mono configuration Precision pinpointing and great manoeuvrability Fully approved by Minelab Visit our website here and click on the size or sizes you are interested in and hit the 'Notify Me' button to receive info on pricing and release date as it comes to hand. Once we have firm intel from Coiltek we will begin taking pre-orders!
  8. Hey all, I just found my coil connection sheared off at the control housing. (oops, and bad timing as I was just headed out!) Luckily no damage to the control housing connection but the other end was bent and broken right off... I sent some photos to minelab to asses if they will fix it or not but still waiting. I was wondering if anyone knows if its possible to buy this connector anywhere? If minelab wont fix it then I will end up splicing one on myself and hope for the best (minus the water tightness of course) . Any help would be so appreciated!
  9. Questions regarding NEL coils for those that might know.----I understand that production of NEL coils has ceased at the NEL plant & service center (because of the war in Ukraine).-----Is the supply of these coils drying up that are in the "pipeline" (at distributors)?----Is the prices on NEL coils expected to increase because of this?-----Any info regarding this would be much appreciated.
  10. VLF detectors can come with DD or concentric coils. This is similar to but not quite the same thing as DD versus mono on a pulse induction detector. There are three basic coil types in wide use, Concentric, Double D (DD) and Mono. A VLF detector transmits and receives simultaneously and so there must be both a transmit coil and a receive coil. A pulse induction (PI) detector can alternate between transmit and receive and so one coil can be employed as both transmit and receive in an alternating fashion. There is confusion on this but simply put VLF (induction balance or continuous wave) detectors do not employ mono coils. A VLF can only employ the concentric or DD options. A pulse induction coil can work with all three types. Metal detector coil types illustrated - concentric vs DD vs mono VLF detectors are more alike than different these days. One thing that can make a real difference is what coil the detector comes with. Two very similar models will be quite different if one comes with a 12" round concentric, and another an 11" x 7" DD. In this case the very same detector can be turned into two different detectors by changing coils. Here are a couple rarely seen on the F75 - the 10" x 5" DD and 10" elliptical concentric. A big difference between the Teknetics T2 and Fisher F75 was that the F75 came later and the ability to use concentric coils was added. The T2 can only use DD coils. Why DD or concentric? DD coils are all the rage these days. However, concentrics have more consistent detection patterns with less dead spots up close. Every notice how that DD coil goes wacky on shallow targets? And concentric coils are much better at identifying flat ferrous targets like bottle caps. Here it is from the guy that should know best, Dave Johnson, lead designer on the F75. About Search Coils by Dave Johnson Search Coil Field Shape by Dave Johnson Coil Basics by Carl Moreland I like the 10" DD for the solid design, better for working in stubble or other locations where an open coil might hang up. The concentric just for being better behaved. The DD is the better prospecting coil for bad ground. Concentrics do well on milder ground. A note on coils. The blade like knife edged detecting pattern depicted in DD marketing ads, and even the diagram above, is largely myth. Electromagnetic fields radiate and simple coils cannot focus them into beams. A round concentric coil has a search field shaped like a soccer ball cut in half. A similar size DD coil will have a search field more like a football cut in half lengthwise. If you ever doubt this, just fire up your detector with a DD coil, flip it over, and run a coin under the coil noting where the signal fades at different locations under the coil. This is best seen via true all metal modes, as disc modes suppress the edge signal to a large degree. But it’s there, and targets under the edge of a DD coil will mask centerline targets to a degree that would surprise most people. Finally, depth is more related to coil width than coil length. Think of a 5" x 10" coil as a stretched out 5" coil, not as a skinny 10" coil. That is why when listing elliptical coil sizes you will often see me putting the small number first. Marketers do it the other way around so you tend to think you are getting more than you are. A truer picture can be had by comparing the total area of a coil, one to the other, but for quick and dirty comparisons, comparing by width will give you a more conservative idea of comparative coil performance, than comparing by length. Fisher F75 with 10" Elliptical DD Coil Fisher F75 with 10" Elliptical Concentric Coil
  11. You maybe thought I sold it - no way! I am the original owner of this Bigfoot coil and it is treated like the gem it is. It certainly is not going anywhere. However, I have bounced it back and forth between several detectors over the years. It started on a DFX, the went to a Vision, then an MXT, then a V3i, then a DFX, then back to a V3i.... and now back to a DFX. I really love the V3i, but the Bigfoot coil was not designed for it, and it has erratic performance that I just can't really get used to. Specifically, the 22.5 kHz frequency target id numbers triple in value, and this makes everything on the high end, like all coins, wrap around into a ferrous reading. This creates an intriguing expanded low end VDI range with a 100 point spread between ferrous and a nickel. But it make running in multifrequency pretty weird. It also seems to throw the multi ground balance off, which makes sense as 22.5 kHz is involved in that. I really only get stable operation running in 7.5 kHz single frequency. But then why bother? I love the features the V3i offers, but getting solid stable performance with the Bigfoot coil is questionable at best. So I decided to go back to the DFX, again, and found a clean one at a decent price on eBay. Many DFX are overpriced right now, going for up to $500, but with shopping you should pay half that. I got a clean one delivered to me for $260. The detector will be dedicated to the DFX, and the 950 concentric will help fill out my V3i coil collection, which right now includes the new D2 coil and a 6" concentric. The 950 may not be V rated so remains to see if the gain can be maxed out on the V3i. Be fun to get out again with this all time favorite combo of mine. White's DFX with Bigfoot coil
  12. I have received some bad news in the last few hours and I don't know how many around Europe know the current availability of the D2 with 9 "coil. There seems to be nothing in this second delivery batch either, except 11 "coils. This could mean an additional one to two months of waiting for anyone who wants the smaller version. Bad, really bad😣
  13. We have a new season of gold hunting just about to start and I've already seen a couple guys out and about making some finds of the heavy yellow metal. With the new season about to start is a few beginner nugget hunter want-a-bees. Let's take the time to share some of the knowledge we have learned. I myself recommend newer users to the nugget hunting scene to run as small of a coil on their VLF gold detector as possible. I have my reasoning for this, but before I say, I'd like to hear from others, your input, thoughts and experiences. What's interesting is the manufactures stock coil is usually larger than what I prefer and recommend for newer hunters. Thanks for helping out the newbies everyone.
  14. If you get out your measuring tape you will find that most are not what they say they are. I have the beast coil and it’s called a 12” coil. I found from side to side it’s 11 7/8 . I’d say that’s near enough to call it a 12” coil. From front to back you will find it to be 11 1/2” and that’s due to it having a flat nose front and back. If any of you can check what is the true measurement of the stock coil I would appreciate it. I plan on ordering the stock coil and I’m wondering what’s the true size. I was thinking about getting another shaft but at I believe is 60 dollars is on the high side. I don’t see 12 dollars for a coil cover to be a bad price. Thanks ahead for your time! Chuck
  15. Hello, i just bought my new Garrett Ace Apex with 8.5x11 Raider Coil This is my first metal detector and I relied on a person who recommended it to me and I was sure everyone came with a viper coil. And in the end I got an 8.5 raider coil. I wanted to ask what is the difference between them? Does the viper have higher detection capabilities? Apart from the size there is a real difference? im usually working on the beach and i want to know if i will miss things with this coil? thanks!
  16. I'm new to this forum and was pleasantly surprised at the number of knowledgeable members here. Hopefully someone can help diagnose my coil problem. I have two M6's, both about 12-13 years old and have the 9.5 coil and the 4x6 shooter coils. One has less than 10 hours use and the other has 100's of hours use. The most used one had been unused for a few months and when I took it out with the 4x6 coil, it overloaded immediately when I turned the sensitivity level to max. I always run it that way. I took the other (barely used) 4x6 and put it on and same thing. So I took the other M6 and tried both 4x6 coils on it and they overloaded as well. The 9.5 coils have no issues. I took the metal detector to a different location to rule out possible EMI and the same overload issue. After using the detector with the 9.5 for a few weeks I put the unused 4x6 on it and it will work for a while 40-45 minutes and then overload. The heavily used 4x6 won't work at all at high sens. It's got me stumped.
  17. I was considering reinforcing the coil ears with some fiberglass and epoxy (on the outside). Two questions: a) does it make sense to do that at all? b) I'm partial to JB Weld for the epoxy part, which is non-conductive (the steel powder is fine and the particles isolated by the epoxy matrix), but it is relatively ferromagnetic. Even though the ears don't move with respect to the coil, would it have a potential of disturbing the magnetic field so close to the coil, as I understand some metal lower rods and bolts did in older detectors designs?
  18. Just curious I'd anyone knows if the Detech boomarang coils are flat wound like delete and evolution coils. The shape of the housing suggests it. If so how do they compare to the similar evo and elite coils? Also anyone using one of the ultimate 15 dd coils? Thanks
  19. Can someone explain why coils are different between a CTX and a Equinox? Or an Etrac and a Equinox? What's going on with the coils that makes each model not compatible with other models? I understand we are talking about 3 different types here FBS, FBSII, Multi-IQ. It just seems odd to me to put something in the coils that make them function only with the model they were designed for.
  20. Maybe I haven't been paying attention, but with the recent push towards digital multifrequency flagship detectors, why have concentric coils been shunned? I don't think it's an engineering/physics issue although I can't rule that out. The White's Vision/V3/V3i/VX3 had concentric coil options and it was digital multifrequency. Did any of the Minelab BBS, FBS, FBS2 models have compatible concentric coils, either in-house or 3rd party aftermarket?
  21. I like an 8" or 9" coil. I don't care for an 11" coil that much but I relic and lake hunt in Michigan. Bigger than a 9" coil gets tiring faster in the water. I really liked the Tesoro 8" coil in the water.
  22. Dear Minelab.. You've probably never heard of me but I've bought quite a few of your detectors and coils.. So it's time to return the favour, I've supported your business and now I want you to make me a coil.. Just a one-off for now.. I need a bigger coil for my Foxy Noxy to detect on beaches.. I'm thinking about 20" round so it'll punch deeper than current options.. Not just for beach hunting but also to sniff out some deeper silver coins.. I'm not just thinking about myself here.. I'm sure creating a 20" coil for the Equinox will make you a lot of badly needed cash.. You'd be able to settle your huge tax debt in one swoop.. There's no need to thank me yet, we can discuss my share of the pie later.. For now, just knock me up a coil.. I'll give it a trail run and if I'm happy with it you can begin mass production.. Win/Win.. So get off your arse, I want to swing the 20" coil during the Xmas holidays.. Your sincerely, Erik
  23. Looking for information. Which ones are best for the NOX 800
  24. Consider myself pretty handy, a question for anyone. I would like to repair an ATX 12in dd with the typical cracked up coil wire, looking for info on replacement coiled wire and a new connector plug . If none are available then what would be the proper straight cable to use to connect it without the capability to retract it? Just for a “see if I can fix it” project. Thx for any info, Jerseybones
  25. Hey I was wandering If anyone knew where I can buy or get a coil connector plug for my equinox I just broke it very frustrated.
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