A New Concentric Coil Coming For The Earlier GPX 4500/5000 Series From X-coils

[phrunt]

You really need to try an older GPX on this ground, especially with a DD coil, I think you would be pleasantly surprised.  Borrow or hire one or something, there has to be a way to try before you buy.  Someone may meet up with you with one.  If the concentric deals with it in DD mode while also controlling EMI and having some decent sensitivity I will be a very happy person.

These rock formations are quite weird, I don't know if lava caused them, but they're nasty to detect and smash up to try get targets out of them.  There is no soil there, it's all rock.

[Aureous]

44 minutes ago, phrunt said:

You really need to try an older GPX on this ground, especially with a DD coil, I think you would be pleasantly surprised.  Borrow or hire one or something, there has to be a way to try before you buy.  Someone may meet up with you with one.  If the concentric deals with it in DD mode while also controlling EMI and having some decent sensitivity I will be a very happy person

Its a very exciting development, pity its through X coils though.....great product but crazy pricing. If I had a decent ABS coil shell to work with, I could build a CC coil for about $150, costs only. Plenty of old ML DD coils floating around to deconstruct & obtain the transmit and receive coil specs from. When I had my 4500 (and earlier models) I built maybe 9 coils for it. Using old Hayes USA and Bulgarian shells. Also a pity that Detech only ever made big CC coils for the legacy ML machines....the size that X coils are developing (or slightly smaller) would be killer....

[dig4gold]

On 11/29/2023 at 8:31 AM, phrunt said:

On 11/29/2023 at 8:30 AM, Luis said:

What would be the price Simon?

They haven't worked that out yet.

Hi Phrunt. If they haven't worked out the pricing  yet how have you managed to be getting one sent to you. Are you being given it, & if so, why?

D4G

[phrunt]

29 minutes ago, dig4gold said:

Hi Phrunt. If they haven't worked out the pricing  yet how have you managed to be getting one sent to you. Are you being given it, & if so, why?

I've been friends with them from just about the start, and manage their FB group.  I am being sent the coil as a gift.  They have also made a 20" version so far which has proven to be a good coil in the testing handling bad ground very well with great EMI handling.  15" suits my needs a lot better than 20" though.

[Dutchman4]

On 11/29/2023 at 4:06 AM, Gold Catcher said:

We are dealing with the same type of hot rocks (mostly volcanic). Here is a flavor of what I am talking about. Literally every rock screams like a beer can. There is alot of gold in this ground. But good luck getting it. These rocks go all the way deep. If the old gpx with the Xcoils can work here and outperform the gpz in general/difficult, I am in! BTW, despite all that I have recovered small nuggets that were stuck to these hot rocks with the GPZ. Just to show the power of the GPZ timings. The 6000 is totally useless here, doesn't matter the configuration.

 

 

 

 

 

 

 

 

 

After reading up on the benefits of DD coils on PI machines, I tried the 14-DD coil on the 6K to see if it was better with hot rocks and also saw no improvement.

[phrunt]

2 hours ago, Dutchman4 said:

After reading up on the benefits of DD coils on PI machines, I tried the 14-DD coil on the 6K to see if it was better with hot rocks and also saw no improvement.

That's because the 6000 is like a 5000 where you've broken your knob off and got stuck in sensitive extra, yes you get the best small gold capability by being in sensitive extra but it struggles with hot rocks, change timing and watch the hot rocks go away, something the 6000 severely lacks, if you encounter a bad area the 6000 doesn't like you have to use a different detector, not a different timing.

[schoolofhardNox]

Looking forward to hearing about the black sand beach and also the EMI capabilities when you have a chance to put it to the test. Thanks for doing that Simon. The 6000 for me is uninteresting, no matter who makes a new coil for it ?. I now use it to prop up all my other detectors. Makes a great book end?

[Gold Catcher]

5 hours ago, phrunt said:

if you encounter a bad area the 6000 doesn't like you have to use a different detector, not a different timing.

Spot on. With all the greatness of the 6000 this is a severe limitation. That's why my 7000 is always in my truck (also since I don't own an Axiom...). ?

GC

[phrunt]

3 hours ago, schoolofhardNox said:

Looking forward to hearing about the black sand beach and also the EMI capabilities when you have a chance to put it to the test. Thanks for doing that Simon. The 6000 for me is uninteresting, no matter who makes a new coil for it ?. I now use it to prop up all my other detectors. Makes a great book end?

That's what I'm interested in most too, the earlier GPX can make an excellent beach detector, and with the Concentric depth, being in DD mode as a Concentric cutting out a lot of EMI.    Just need to screw these little things onto the switches to prolong their life when exposed to sand.  

If it cuts out EMI as well as a DD yet provides Concentric depth, I'll be super happy, top that off with good ground handling for the black sand and it will be ideal for me.  Having the discrimination is another bonus I guess, I'd need to play with that a bit to see how I like it.