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  1. I've been experiencing lower yields due to sites being detected, by me for sure and there are also signs by others previously. SchoolofHardNox's success on a beach using the Minelab GPX 5000 reminded me to re-read Steve's treatise on using the (in his case original big box Pulsescan) TDI for coin detecting. I just a few days ago stumbled upon a promising site where extra depth could be key. It's a schoolyard going back at least to 1955. Unfortunately as is the case in many of my public sites, it has a history of backfilling. From aerial photos I see than in the 50's it was grass/sod c
  2. I have an easy and maybe stupid question to present now... Observing my TDI Bh, with both of the coils I own (the original 12" and the aftermarket Detech 8"), I can clearly see way too long wire around the shaft and I'm forced to make several loops up to the control box near the handle. Supposing to measure the right lenght for the maximum extended shaft, and to cut away the hipmount mile long cable.....Am I doing a disaster or not? I actually can't remember the technical cable's specs in the amazing pdf Steve posted time ago, but if I'm correct it talked about to reduce some cu
  3. This maybe a newbie question but, what is the difference in the 12" Dual Field Coils pictured here other than the black and white labels? Is one 1st gen. or 2nd gen. or something else? Thanks, TC-AZ
  4. A year full of distractions, so yes I kind of did forget about this project. All parts had been ordered and arrived in good time. Assembly to follow in the next few days... with photographs and a performance test on the modified Pro I still have.. I'll take it steady and do it right, get the soldering tidy and follow the plan..
  5. A friend traded me an old Tdi Sl for my old Canon DSLR with a couple lenses. The camera was old but still worked well and perhaps worth a couple hundred at most, so I threw in a telephoto lens and we had a deal. I got a dead or dying Tdi Sl in exchange. The machine would power on etc everything seems to work except it will not ground balance and sensitivity was way down to almost nothing. Ok so not dead but way out of sorts at least. The previous owner has moved on after having done something to the machine. Yes he had opened it up and poked about and tried to make adjustments or something to
  6. I am interested to learn more about the 7.5-inch mono versus the 7.5-inch Aussie coils that are available for the TDI series. Is there an advantage of one coil design over the other when hunting for nuggets? I have the standard 12-inch dual field and also a Super Pulse 150 coil and am curious whether I should add either or both of these coils to my collection? Or should I purchase one of the new Nugget Finder 8x6 Sadie mono coils? Any thoughts or advice would be greatly appreciated.
  7. I opened up my TDIBH the other day for some fiddling around and checking out a few things. I powered up the detector with all of the guts and board opened up and had it hooked up to the 14.8v (4 x 18650 cells) battery pack. I had it going for just a few minutes when I gripped the circuit board as part of my “fiddling” around......well I dropped the board and swore a bit in response the burn I was expecting on my fingers. Well it turns out that on the opposite side of the board behind where the big capacitors sit is some sort of heat sink and I can tell you the heat from this spot was something
  8. Hi could you help me to contact the gentleman who makes the mods for the TDI ( Regg's friend ) Thks for your help guy's Bruno 🗿💍
  9. Speaking of PI detectors. Now that Garrett has aquired White's. How about a multi frequency Whites TDI ??? 98 frequencies from the Infinium. Added to the Whites TDI with it's incredible ground tracking and ground balance. That sounds interesting !
  10. I was looking for battery tray design for my Tdi SL which would allow 4 x 18650 batteries. As luck would have it on the local Prospecting Australia website XLOOX posted a simple mod for a Whites factory battery tray. I don't know how to post links so the full description is to be found in the Prospecting Australia site. Simple cut out the guts of the tray, leaving the original battery connectors with mods on one end and a copper connector on the other. I can fit Panasonic NCR18650B cells, without nipples but with protection. They just fit snuggly. The only issue is closing the lid, you need
  11. Is the main difference between the TDI Pro and SL is gb course and fine adjustments? Is there any power difference between the models? An old friend might be selling his TDI and I believe it is one of the older Pro's and I might snag it. Also what 3rd party coils work with them?
  12. I did a coil test some time ago using a Tdi Pro OZ, quite a variety of coils involved. Just a bit of information not wanting it to go to waste. The test area was located in the middle of the Golden Triangle in Victoria, Australia. Looking at the images the test site is located on a area that produced large nuggets. Heavily mineralized to give the depth tests some authenticity. Targets were varied as were the coils tested. The Tdi Pro was ground balanced, gain was at 5, conductivity was in ALL, pulse delay was 10. Frequency was set in the middle and the audio was boosted by a Nokia MD-11 e
  13. Looking for advice on a small elliptical coil purchase for a TDI Pro. As someone pointed out in the Classified section Serious Detecting is having a clearance sale. Looking at the Coiltek 10 x 5 Joey Mono, and the Whites 7.5 x 12 TDI HI-Q Dual Field. See lots of good reviews for the Joey, but not much is posted on the HI-Q. I guess that initially the HI-Q was only available as part of a TDI-SL package and some were hoping that it would be available separately in the future. It appears that when it became available on its own that it was possibly misleadingly labeled as for MX series detectors,
  14. I currently use a Equinox 800 and I consider myself to know absolutely everything about it. There really isnt anything that anyone can tell me about that machine that i havent mastered and completely already know. Its probably the most simple machine to use on the planet. I understand all the settings and I even know how to exploit the machine to get the results that i want when i want and i know how to get the maximum depth possible on the machine. I can even get a 22 inch air test on a silver quarter. Not too many people know how to do that and it is very relevant when you hunt in places wit
  15. Hey All, Measured White's TDI SL factory battery packs and discovered the following differences. NiMh Battery - HD #802-5321, 2200 mAh. After full a charge, one day later..........................................10.99 VDC AA Battery Holder - #802-7150, 8 cell. With Nuon Industrial Alkaline from White's Factory............12.94 VDC With Member's Mark Alkaline from Sam's Club...................12.96 VDC With Energizer Ultimate Lithium...........................................14.46 VDC Was very surprised that with Alkaline batteries, the t
  16. hello , my wiring go out of my plug and i need a picture or resistance test for, pin out connector , one red with a shield and one clear wire with one shield, the connector have 5 pins but one pin have no seen wire one it, thanks Yves
  17. I finished my channel's intro footage, squeezing some of the last finds in less than two minutes... Hope you enjoy the atmosphere 🙃. Will be difficult to keep it updated constantly with all the work I'm next to start on dryland for water sessions improvement, but keep an eye on my diary now and then🔥 https://youtu.be/1kyGlM9-_do
  18. Hi I have a question regarding all the talk regarding ramping up the amps volts etc on the tdi sl wouldn't good batteries like 8 x energizer lithium batteries add up to 14 volts rather than trying to squeeze an extra battery in there or striping the guts out of the battery pack to put in 4 18500? What about 4 x 14500 which for memory are the same width maybe a tad longer they add up to 15 volts plus I'm not sure any thoughts
  19. I need to have my coil replaced on my TDI BH Whites service center is not sure they have one at the moment. My Question is what are the pros and cons of putting a 12 inch Aussie Mono coil on. Not for diving just waist deep wading, also does anyone know if the mono will float like the yellow dual field? I am not looking to find small bits of gold, mostly coins and ring size targets on the Northeast beaches. Thanks Jim
  20. Hi, there. I was using my TDI BH for almost two years now. It worked great till the las week then I noticed an important sensitivity drop. In other words, the detector switches on and work as usual, but no matter what I do, I am getting less depth on my targets. Just to give you some numbers. My test target is a nickel coin which I was detecting from 27 cm a least (10us, gain full, gb off). Now, under the same conditions I can detect the same coin at 10-12 cm only. It is not the matter of the battery, as I have tested it with different batteries I have laying around. The TD
  21. I promised myself to go out and test the changes I made on the Tdi Beachhunter ... In the end, all works properly and I'm a bit proud of what I've done thanks to some help I received here on the forum... Last night, however, I got my hands on the scuba harness and made one of the most serious miscalculations ... Removing a lot of weight to be free to reach the beach without paying the price of pain after the fatigue ... I had in mind some splendid video on sidemount setup, which intrigued me to try in terms of set-up ... The result was crap to say the least ...Sh...happens... Not only
  22. I have decided to finally swap out my big 12” Dual field coil on my TDIBH for something smaller. The purpose is to use in the water. I have some pros and cons with each model so feel free to add any ideas you have. Coiltek Platypus 12x8. Waterproof, epoxy filled. Maybe too long on the 12” side which sees the most water resistance Detech 8” Mono. Foam filled so more buoyant but not too worried as 2/3 the size of the Dual Field coil. Good size. Waterproof. Garrett 8” Mono coil. Waterproof, epoxy filled. Good size. Suitable for lower delays? Garrett coil Coiltek c
  23. this machine is new have used it for about a month never droped it or abused it , this is what is happeneing when i turn it on ,it starts overloading and moaning but only in the All or high position if i turn to low its a quite as a mouse turn it to all and it starts moaning and will not stop , any ideas?
  24. I took my Excalibur out yesterday water hunting to an area I thought might hold some loot.....I was rewarded with a very nice Platinum ring. The area was inundated with old bottlecaps and even though the Excal was nulling them out perfectly, it was hard going and required a good deal of patience. Because of this, I have decided to keep the TDIBH strictly for beach work as using a PI in this area would have made me quit in disgust. The detector has been reassembled back to the original Coil as I was planning on swapping out for a smaller coil for the water. I feel too much time would
  25. Hi! after a year of snorkeling with TDI BH I concluded that I can clearly note the sensitivity goes down ones the voltage of my battery pack goes down. Other conclusion was that even at 12.6V the TDI BH is noisy underwater at maximum settings: it reacts to the waves. Thus at the moment I really prefer to have just a stabilized battery pack. For my experiment I took a couple of 21700 5aH Li-Ion cells and a dc-dc booster board. the plan is to get "one hunt" battery pack.
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