Jump to content
Sign in to follow this  
karelian

Nuggeteer Anti Inteference 12 X 4 On Tdi Pro

Recommended Posts

I've had this coil for quite some time, but it was packed away and forgotten. It was purchased for A$60 because I was intrigued.

It is the anti-interference version. Measures 12 x 4 and uses the MInelab lower rod.

Weight is decent, build quality is good. Performance in the field still remains a mystery as I've yet to use it. I gave it a quick air test just to see how it behaved on the Tdi Pro.

This version has a hot spot in the centre of the coil which appears very sensitive to small targets at shallow depth. Seems to hit fairly well at shallow depths but doesn't have much punch for the deeper targets. Test garden results on coins would give real world depth on coins between a solid hit around 15cm or 6 inches and fading fast past 20cm or 8 inches. 

Useless air test with ground balance off, gain at max, in ALL, frequency in the middle, pulse delay at 10.

1 grain was               7cm

.5 gram gold coin  16cm

1/2 Sovereign         23cm

Us Quarter              23cm

Aussie Penny         25cm

Whites Buckle        33cm

So in summary it hits hard on small and shallow targets, the centre of the coil is a hot spot for sure.. Fades fast as depth increases, the big Whites buckle just managed 13 inches.

Since I managed max gain on the Tdi Pro in an EMI hot zone, the Anti-interference feature seems to work ok.. One of the things I like about the Tdi machines is the ability to plug in all sorts of coils, never know if you don't have a go..  My Tdi SL is highly resistance to EMI and the Pro less so but still very good. This coil could make more sense mounted on a Minelab around electric fences and mobile phone towers.. etc.

All the best,

Karelian

IMG_1643_edited.jpg

nuggeteer1.jpg

nuggeteer2.jpg

nuggeteer 3.jpg

nuggeteer ai.jpg

  • Like 3

Share this post


Link to post
Share on other sites

Now what I really wanted from this style of coil is something like a 'bigfoot' for the beach. My current beach coil is the Jimmy Sierra Digger 14 x 8 mono coil made for him by Miner John. Well balance and light with a good footprint it is a winner.

I've given up trying to find a bigfoot coil for either my MXT or XL PRO machines, too old and rare plus the prices are a bit high.. A nice Razorback Beach Hog would be great but again too rare and hard to find in Australia whilst   perfect for my Tdi machines.  As luck would have it I am waiting for a Nuggeteer 18 x 6 mono to arrive. Not my first choice but for this style of coil we have few options and opportunities are not to be missed.. Coverage is the key goal, decent depth but not too much... if nothing else it should just eat up large areas fast.. Full review to follow..

Karelian

18 x 6 2.jpg

18 x 6.jpg

beach coil.jpg

  • Like 1

Share this post


Link to post
Share on other sites

I had a couple Jimmy Sierra T-Foot 5.5" x 18" coils in stock at one time, and really wish now I had kept one. I thought exactly what you are thinking - perfect coil for beach sweeping. Jimmy Sierra coils for TDI Anyway, similar to the 6" x 18" mono you have coming but supposedly a dual field instead of mono.

Very interesting about the Nuggeteer coil, I don't recall ever seeing anything about them before. Are they still around? I see the website is dead.

jimmy-sierra-tdi-coils.jpg
Some coils for White's TDI

  • Like 1

Share this post


Link to post
Share on other sites

jimmy-sierra-t-foot-coil-for-tdi.jpg
Jimmy Sierra T-Foot dual field coil for White's TDI

 

Jimmy shows off his coils including the T-Foot starting at 10:45 in this video.....

 

  • Like 1

Share this post


Link to post
Share on other sites

Sadly Pm Coils is out of the game, for a while they made a Scarab 18 x 14, Nuggeteer 18 x 6 in mono and AI, 12 x 4 mono and AI. There was also an 18 Tarantula, it's in the photo, two coils shown with funny shape.  Jimmy's T-foot as an 18 x 5.5 duel field would be the ideal beach coil. Don't know how many Razorback Beach Hog's were made,  a real beach sweeper.  Only rarely spot Nuggeteer coils on the local Australian classifieds, very reasonably priced compared to the 'bigfoot' coils I sometimes see advertised in the USA. Paid $60 for the 12 x 4 AI and $175 delivered, for the 18 x 6 mono. (Australian dollar roughly US 70 cents.)  I'm interested in how the big 18 x 6 mono balances on either the Pro or SL, it was classed as a 'patch finder' coil.

These coils seem well put together, quality feel and solid. The coil cable is quality, also durable and the coil cover fits well. The Nuggeteer GPX coils already used Litz wire, so I'm looking forward to testing that 18 x 6.  A bit wider than the genuine  'bigfoot' but the same length so on a pulse machine depth should be interesting. 

Karelian

 

table of coils nuggeteer.jpg

  • Like 1

Share this post


Link to post
Share on other sites

The VLF Bigfoot was an entirely different deal, first by being compatible with a very popular mainstream set of detectors, the MXT series, M6, DFX, and V3i. The market is far larger. And they have full discrimination plus ability to shut half the coil off for easy pinpointing. There really is no other VLF coil like it, so they go for a fortune now used.

  • Like 1

Share this post


Link to post
Share on other sites

Forgot to mention PM Coils also produced a limited number of coils for the Whites GMT, possibly other brands and models such as the Infinium , Scorpion Stinger etc. They were happy to experiment, that willingness to 'have a go' is sorely missed, since no current coil manufacturers have yet stepped into the possibly very profitable gap left by the Bigfoot. We can all dream can't we?  Karelian

gmt coil pm 12 x 8_edited.jpg

  • Like 1

Share this post


Link to post
Share on other sites

Steve, thanks for posting the video of Jimmy Sierra and Digger Bob. In which they introduced the TDI SL.  Seeing them both brought back many good memories of the times  that I shared with both of them. 

Mahalo, Terry

 

  • Like 2

Share this post


Link to post
Share on other sites

Too bad it is such a poor translation to video, but the information presented is still just as good.

Share this post


Link to post
Share on other sites
On 1/13/2020 at 3:10 PM, karelian said:

Sadly Pm Coils is out of the game, for a while they made a Scarab 18 x 14, Nuggeteer 18 x 6 in mono and AI, 12 x 4 mono and AI. There was also an 18 Tarantula, it's in the photo, two coils shown with funny shape.  Jimmy's T-foot as an 18 x 5.5 duel field would be the ideal beach coil. Don't know how many Razorback Beach Hog's were made,  a real beach sweeper.  Only rarely spot Nuggeteer coils on the local Australian classifieds, very reasonably priced compared to the 'bigfoot' coils I sometimes see advertised in the USA. Paid $60 for the 12 x 4 AI and $175 delivered, for the 18 x 6 mono. (Australian dollar roughly US 70 cents.)  I'm interested in how the big 18 x 6 mono balances on either the Pro or SL, it was classed as a 'patch finder' coil.

These coils seem well put together, quality feel and solid. The coil cable is quality, also durable and the coil cover fits well. The Nuggeteer GPX coils already used Litz wire, so I'm looking forward to testing that 18 x 6.  A bit wider than the genuine  'bigfoot' but the same length so on a pulse machine depth should be interesting. 

Karelian

 

table of coils nuggeteer.jpg

All those coils shown are field test prototypes using Bill Hayes shells. The Tarantula coil was a big red/orange colored 18" round in both mono and dual loop types. Those guys did a heap of experimentation with various designs incl the spiral mono, concentric, stacked-cone mono and co-planar ideas years before anyone else, from a garage in Mt Gambier. Their AI designs are killer on the salt lakes in SA/WA and the Scarab AI punched deeper than any Coiltek AI I ever owned & used on my 2000 or 4500. The 12x4 AI is incredibly sensitive to tiny gold on a 5000 too.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Similar Content

    • By Stephen Allen
      I'm just wondering if this has been asked before ?
      When I purchased my Equinox 800 the shop told me that the multi-iq is not available when in gold mode, only 40 and 20 kHz. In the manual it if I understand it correctly it says that in gold mode you have multi, 40 and 20khz modes. My question is
      In gold mode is the multi, all frequencies 5, 10, 15, 20 and 40khz or is it only scanning 20 and 40khz in gold modes.
      Hope someone can set me straight
       
    • By Whitbey
      Whites quoted on their website that the TDI beach hunter can also be used as a nuggett hunting  detector in the gold fields. Was wondering if their was somebody who tried it and what their experience is and what the sensitivity on small gold is?
    • By madtuna
      Found a nice little run a couple of days ago, 2 days in a row just over 1/2 oz  each day and another 23 grams this morning.
      Here's a pic of this mornings total....

      I don't film many digs anymore, but the bigger chunk had a bit of depth. I was hoping it would be deeper and bigger...but alas, not to be, it went just under 10 grams
      https://www.youtube.com/watch?v=qpUIZp0f7zQ
    • By idahogold
      Beautiful Country! Tremendous Patch! Enjoy! Ig 😜
       
    • By Steve Herschbach
      Well, thanks to forum member YubaJ I just ended up with a very slightly used White's Sierra Pulse Pro, or as it is more commonly referred to, the White's SPP. Bonus is it came with three coils, the standard 12" round mono, a 6" round mono that was part of an introductory special when they first came out, and a 5" x 9" Miner John folded mono coil.

      The Sierra Pulse Pro is nothing more than a White's TDI SL with the Conductivity switch and Pulse Delay knob both removed. The unit is locked into the hottest 10uS pulse delay. It is a limited availability machine only available from west coast dealers and in Australia. The whole story on how it came about is kind of interesting and detailed in my original thread on the machine from May 2014 at http://www.detectorprospector.com/forum/topic/213-whites-sierra-pulse-pro-whites-spp/

      Now you may ask, why did I get this detector? There is a story there also. My first detector was a White's Coinmaster IV that I purchased in 1972. My first detector dealership was for White's in 1976, and I have had good success using many of their detectors. I currently have a White's V3i with Bigfoot coil that is my jewelry machine for large parks and sports fields. Bottom line is White's and I go way back.
      Whether I intend to use them myself or not I like spreading the word about on new models others might be interested in, so I perked up when the SPP was announced. I was more than anything just excited to see a ground balancing pulse induction machine introduced for under a grand, plus I always liked the ultra light weight of the previous TDI SL model. So I really was kind of pumped up to get one and posted on a few forums about it.
      Now, I used to hang out a lot on the White's Electronics forum at http://forums.whiteselectronics.com/ to just offer some free help and support as one of the only people there that seemed to know much about the White's GMT and TDI models. I made a post there identical to the one on this forum at the link above, and I get this message from the moderator:
      "Had to remove the Pic and "Sierra" name from the title of your post. The SPP is a Jimmy Sierra product, and as such isn't allowed to be "advertised" or "plugged" on the open forum."
      I posted again, something along the lines of "WTF it is made by White's and is sold by White's dealers but because it says "Sierra" in the actual name of the product I am being censored?". I got another message saying my "rant" had been deleted and the issue forwarded to the admin. That was it for me - I banned myself and have not participated there since. Jimmy Sierra later contacted me to apologize and he did set things straight with the people at the forum but water under the bridge by then. Just another example of the strange and convoluted politics at White's Electronics.
      I had been all fired up to get the SPP but just put the whole idea aside at that point. Yet down inside I still wanted one. So when by pure chance I saw this SPP for sale at a good price I pounced, purely as an impulse buy. I have no real use for the machine and will probably sell it but I want to play around with it a bit.
      The main thing about the White's TDI SL and the SPP is they are crazy light weight. The machine weighs about 3.5 lbs with the 12" coil and right at a perfectly balanced 3 lbs with the smaller coils. This is what the Garrett ATX or Minelab SDC 2300 could have been and should be packaged like. After swinging a GPZ 7000 all summer the SPP feels like a feather!
      Now, the TDI SL and SPP models are not high power pulse units and like the Garrett Infinium they really do not do any better in low mineral ground than a good VLF detector. However, as ground mineralization and hot rocks get worse there is a crossover point where the problems these conditions cause on a VLF (loss of depth, false signals) can be overcome by using a ground balancing pulse induction (GBPI) detector. Something many people do not understand is that by adding a ground balancing circuit to a PI some depth is lost in an absolute sense, and this is very easily illustrated with the TDI/SPP models in air tests by just turning the ground balance off. The machine gains quite a bit of extra punch, and a nice thing about the White's GBPI models is they have this ability to be run in pure PI mode in low mineral ground. In particular this makes the original TDI and TDI Pro models some of the best beach PI detectors you can get your hands on.
      In the case of the TDI SL and SPP however running the machines with ground balance off is almost the same as running a good VLF in all metal mode. The only difference is you do get the ability inherent in all PI detectors to ignore some ground conditions due to the pulse delay and how it works. See Understanding the PI Metal Detector by Reg Sniff for details.
      More about the SPP versus the TDI SL. The SL comes with what White's calls a Dual Field coil, which is basically a small mono running inside a large mono. The coils look like doughnuts, the outer rim being the large coil, and the inner circle being a smaller mono coil, both running at the same time. The theory is the depth of a large coil with the small gold sensitivity of a small coil, all at the same time. The problem was these coils were a bit too hot for Australia, and so the SPP coils are just regular mono coils. Easy to confuse also because a 12" Dual Field looks identical to the regular 12" mono. My unit has both the 12" mono and a 6" round mono that was part of an introductory special (now over). The SPP was a killer deal at introduction with two coils for $999.95. It is now being advertised new with a single 12" coil for $999.95 but is being offered by at least one dealer for $899.95 with the single coil.

      I really like the little 5" x 9" folded mono coil and scuff cover that came with my unit. What is a folded mono you ask? Something Reg Sniff came up with, details at Link deleted since Findmall Forum update broke all old links Basically his answer to the White's Dual Field, which was patented. Miner John sells these for $199 at http://razorbackcoils.webs.com/apps/webstore/products/show/6277891 and it is probably one of the best coils you can get for a TDI to hunt gold.
      Finally, the SPP is interesting because it really is a TDI SL under the hood. The plug in connections for the Conductivity switch and Pulse Delay control knob are still on the circuit board, and the SPP can be upgraded back into a TDI SL for just a few dollars in parts. Here is a thread on adding the Conductivity switch back in at https://www.prospectingaustralia.com.au/forum/viewtopic.php?id=13934 You can see the little white plastic sockets on the control board picture below marked conductivity and pulse delay.
      Anyway, just got this and no time yet to do more than take pictures and post but when I get time more will be forthcoming.


    • By karelian
      The passing of a friend unfortunately has led to me taking ownership of a modified Tdi Pro. My machine is mounted on an Anderson shaft and is factory spec. My old mate had his machine modified to smooth out the threshold and to add some sensitivity. The specifics related to the modifications are not known by me, other than that they were conducted by 'Luke'..Oz Digger.. This happened some time ago. So the modified machine is probably not a keeper, I don't want two Tdi Pro machines.. The opportunity to do a comparison cannot and should not be ignored. 
      My intention is to focus on small gold performance, the threshold smoothness, the ability to use gain, basic performance and handling characteristics  under different circumstances. The machines will use the same fully charged battery pack, same coil, same targets, same test location and conditions on the same day etc. Trying to minimise external variations. I'll start with the usual useless air test. Later I'll follow up with in ground testing on the actual goldfields in mineralized soil. Test coils will be with a small coil and a large coil. Targets will be gold only. The 1 grain ingot, the half gram gold coin, a half sovereign gold coin. Some real small sub gram nuggets to see how small we can go.. There is a process involved so I'll take my time and do it right.  Any specific questions or suggestions, speak now or forever hold you peace.. I'm only doing this once. Once it sold it will be too late to revisit.. 
      All the best.

×
×
  • Create New...