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Whites 6T

Picked up a 6T still in the box with the reg spider coil and a 950 coil never been used , for $100.00 bucks. Does anyone know anything about this machine? is there any depth to it. What ever you guys can tell me about it would be great, Being you never here much about it. Thanks in advance.
 
Was what is now the Coinmaster GT. Very good machine, like my GT a lot. Not sure the difference but they are few, you got a freaking great deal!!

Found this just today .. my very first real Ring!
firstdiamondringcrop.jpg
 
The Prizm 6T was black, and the current Coinmaster GT is the same detector/circuitry, but in the burgundy color. Is there a difference? Yes.

The Prizm 6T has a 3-rod design, and rod-locks to snug up the middle and lower rods. The Coinmaster GT is a 2-piece rod design, and there is no rod-lock to snug up the lower rod.

It listed brand new for $699.95 and was promoted at $599.95, but sales were in a slump for a few reasons. White's switched from the Black housings of the Prizm series to Burgundy, which I prefer, and then they trimmed the cost a little by going with a 2-piece rod and no rod-lock in order to put the Coinmaster GT at a more competitive $399.95 suggested retail. So, for $100 you got a bargain, to be sure.

For what they are, they can provide very reasonable depth, but I am not a big fan of 'depth discussions because most of the time I either hear [size=small](or see)[/size] people relate a deep coin find the same way they would describe the size of the fish that got away. I hunt a wide range of site environments, and have for fifty years now and I know that most targets are not that deep. Are there some coins laying in that 6", 8", or maybe even 9" depth range? Of course there are, where conditions have displaced them, but they are very few and far between.

Often people ask about 'depth' because they want to find the older coins, especially silver, and figure it must still be there. Well, some got missed, but I know I found my share, and then some, and many others who got started in this great sport in the 'early days' had that same opportunity to find a lot of silver coins and other older-date coinage ..... and we did. It WAS there, we FOUND it, and now most of it is GONE. We just have to work harder to find it, and that is more a matter of site selection, doing research, asking permission to hunt private and un-searched land, and being patient. It takes that a lot more than it requires a deep-seeking detector.

All that said, I have used both the Prizm 6T and Coinmaster GT and had many times when I found coins that were sufficiently 'deep' to satisfy my curiosity and leave me impressed. The downside to those models is the more limited search coil selection, but you have two of them, and the third would be the Prizm 'Shooter' coil, which is a 4X6 Double-D design, and is the coil I prefer on that model for most of the hunting I do ... which is in trashier locations.

Monte
 
Monte, I have the 4x6 and when I first got it had issues with DOA coil and intermittent failure. So I think the one I have is the 3rd or 4th and starting to act up .. I think. Can not seem to get a solid signal on anything much deeper than 4" on the display which is actually 2". When new I was able to get solid VDI on 6" signals (actually 4") Of course the ground has a lot to do with it but just wondering what kind of performance you get with the 4x6 before I call whites, spend $15 to ship it and find out there can not find anything wrong.
 
airscapes said:
Monte, I have the 4x6 and when I first got it had issues with DOA coil and intermittent failure. So I think the one I have is the 3rd or 4th and starting to act up .. I think. Can not seem to get a solid signal on anything much deeper than 4" on the display which is actually 2". When new I was able to get solid VDI on 6" signals (actually 4") Of course the ground has a lot to do with it but just wondering what kind of performance you get with the 4x6 before I call whites, spend $15 to ship it and find out there can not find anything wrong.
Doug, You kind of lost me when you say <4" on the display which is actually 2">, and when you were able to <get a solid VDI on 6" signals (actually 4")> ... are you referring to the actual coil-to-target depth/distance, or the visual Coin Depth read-out? Just curious.

Personally, I do not rely on 'Coin Depth' with most detectors because the ground mineral can have an effect on the reading, plus the types of coil (metal alloy) and the coin's size, and position (flat or canted), and other variables. Things like the Sensitivity level of some detectors can influence the Coin Depth read-out, etc.

Another factory is we are refereeing to an elliptical-shaped search coil, and one that is a Double-D designed search coil, and the coil size and dimensions can also have an influence on the detection of a target as well as how it reads the TID/VDI/Depth, etc. I know, this is coming from a guy who generally isn't too thrilled with Double-D coils, but they do lack some of the better qualities of consistent performance of most round, Concentric coil behavior.

Also, a general coin depth 'suggestion' on a visual display during the search, where it kind of groups the coin/target into a depth 'group', can often be different by an inch or two compared with the main Coin Depth reading we get when we used the Pinpoint function.

On that note, another problem some people have is using the Pinpoint to try an isolate a target and reads the depth, but they don't get an accurate Coin Depth read-out because they activate the Pinpoint mode function with the search coil over, or partially over, the target. Or, they have done some de-tuning to help pinpoint and the Sensitivity is now reduced, and that causes an errant Coin Depth Read-Out.

So, to check your search coil and detector's performance for Pinpointing and giving an accurate (or close to accurate) Coin Depth,:

• check it out using a variety of coins, from a small dime to a Zinc penny, to a nickel and then a quarter and a half-dollar.
• lay each of the coins flat-on-the-ground
• hold the search coil about 2" to 3" above the target AND OFF TO THE SIDE.
• THEN pull a trigger or press a button or touchpad to select the All Metal Pinpoint , and
• sweep the search coil over the target and listen for the highest pitched audio to Pinpoint, at which time you should have the more accurate Coin Depth that detector model is able to produce and it won't be 'detuned' from activating Pinpoint when the search coil is too close to or over a target. Nothing is 'perfect' so we know some makes and models will show their weaknesses, but check out the Pinpoint function on your detector without the coil being over or too close when you switch into the Pinpoint function.

When you check out your detector and coil(s), just remember that some makes and models might just be off a little and even reducing the Sensitivity can help bring about a more accurate Coin Depth reading.

Monte
 
Montye on the GT with a 4x6 a target that pinpoints or reads when swinging 4" is only 2 inches when you dig it up. I understand that and have no issue. What I am saying is the coil will not pick up a solid signal of a coin that is actually in the ground 3"-4" down.. I would find a solid target at 3 or 4" with the nel but the 4x6 was very broken up and bouncy. This was not the case when new, nor was it that way with my first coil that became intermittent and was replaced. Yes I did ground balance after the coil change, I even went so far as to pop out the battery tray before powering up..
Thought you still had one of these on hand and could comment on it the 4x6 and how it responds on your machine.. Trying to figure out if I should send this coil in..
 
airscapes said:
What I am saying is the coil will not pick up a solid signal of a coin that is actually in the ground 3"-4" down.. I would find a solid target at 3 or 4" with the nel but the 4x6 was very broken up and bouncy.
Coin buried at 3" to 4", a check with the White's 4X6 DD = broken, poor signal. A check with the NEL coil = Good solid response. That suggests the detector is working okay as one coil and detector do fine, but the 4X6 Prizm coil doesn't perform well. Logic seems the 4X6 coil needs to be taken care of.


airscapes said:
This was not the case when new, nor was it that way with my first coil that became intermittent and was replaced. Yes I did ground balance after the coil change, I even went so far as to pop out the battery tray before powering up.
The 4X6 Prizm DD worked okay when new, but doesn't work okay now? Seems to me the coil needs to be fixed.

airscapes said:
Thought you still had one of these on hand and could comment on it the 4x6 and how it responds on your machine.. Trying to figure out if I should send this coil in.
No, I don't have a Prizm 6T or Coinmaster GT in my detector arsenal, however I have two friends who each have their own Coinmaster GT, which is the Prizm 6T in a different colored package. They use the 9" spider in wide open areas, but the 4X6 DD Prizm coil is mounted for regular use in trashier urban settings. I worked with them in some training recently and was curious about the performance of a 4½" round Concentric coil on my Classic ID [size=small](the Blue Max 350)[/size] so I compared the Coin GT w/4X6DD to my Classic ID set-up.

Mineralized ground there, and while none of the 4X6 DD and 4½" Concentric coils matched the performance of my 6½" or 9" coils on two comparison detectors, they did okay on most of the coins at approximately 4" deep. So, I would suggest you take the detector and both coils and grid a dedicated area. Do not use a planted coin, just search for some naturally-lost targets. Use the 4X6 and find several targets that sound good, and mark the spot. Jot down what the audio info sounded like and also the visual read-out information. Also listen for any crappy signals that you're not sure about and are 'iffy' at best. Again, mark those spots and jot down some notes.

Then, without changing the settings, swap to the NEL coil and double-check all of the targets. The good sounding targets first, then the questionable targets. Make notes of the differences, good or bad. Then, with the NEL coil mounted, repeat the process and search for and mark maybe 8-10 targets and make notes. Swap to the White's coil and check them all with the same settings, and make notes.

When finished, you will have some detailed notes to use to describe the difference in performance of the coils. Make sure you mention the NEL model or size in the note. Also, let them know you had this happen before with a repair. Send it off to White's factory in Oregon to get taken care of and you can still get some detecting in while they remedy the problem.

Monte
 
Thanks so much!
I had done this on Sunday but not to the detail I should have. Checked an area with the NEL, had lots of targets then with the 4x6 not much and nothing solid.
Contacted my Deal (flphil) and he suggested I do an air test with quarter and nickel and send him the results. He would then do the same on a new 4x6 and GT at his shop and let me know if I have an actual problem.
This could just be me being stupid thinking I had better results in the past..
 
The Whites Prizm 6T has been one of my favorite detectors that I have owned. It was plenty deep with the stock coil and the detector has lots of nice features. I had two NEL coils for mine that worked really well but what Monte said is true the coil selection is the biggest drawback to this detector. I think I read somewhere that NEL was no longer recommending there coils for the GT or 6T but you might want to check them out. The problem that I have had with coils on the 6T has always an overload signal at full sensitivity. I have with both of my 6T's had to send 4X6 coils back that had the overload issues but they eventually found ones that worked for me. I almost always ran the 6T at full sensitivity !! $100 price tag on a 6T is crazy, ridiculous good !! I would buy as many as I could find at that price because they are a good little machine. Good luck with your 6T and keep us posted.
Pesc
 
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