New PD

[Geo]

Hi Geo.

My moded pin-pointer can detect "on remote" only earth magnetic field by moving through its line, nothing else.

Seems your PD detect the same phenomena. To aware us that this is not the same in your case, you need to to do some simple additional test (moving PD by unchanged settings in different directions) as you are asked by me and other sceptic here. Instead of give us such evidence, you close your exhibition. Sorry, but this is not enough to believe you that your PD can detect real target and not only planetary magnetism.

Geo, you are great engineer and do not need to stay by cheap unproven solution.



Geo, my first program is to survival. After that if you have something new to test I will be happy to participate in the presentation of evidence. Maybe I need to build real electronic dowsing device, Neuron Laser PD, first, as present for you.

Hi WM6.
Sure i will do some simple additional test (moving PD by unchanged settings in different directions) and i will post it to you and to some other members. I know that i own it. But until now when i move the gold coin it needs some time so to stop to beep at the first position. I made some modifications but i did not finish them because this time i am very busy

Regards

[Geo]

Hallo Geo, how is it going?
Any improvementsn whith your PD?
Come over and visit me.I want you to have a look at my DCH to see if we can make its sensitivity adjustable.

Hi George.
I am fine, you??
Next month i believe to finish with my farm so to "play" a little with the DCH.
After August 15 you can call me

Regards

[WM6]

Hi WM6.
Sure i will do some simple additional test (moving PD by unchanged settings in different directions) and i will post it to you and to some other members. I know that i own it. But until now when i move the gold coin it needs some time so to stop to beep at the first position. I made some modifications but i did not finish them because this time i am very busy

Regards

I am glad that you still insist, thanks Geo, don't hurry, the most important are only end-results.

[J_Player]

Hi Nelson,
if you or anyone wish to try, here all data needed:
I moded Security handheld metal detector model: LT-88B,
producer ZhangFei, China.
Air core coils was replaced by on ferrite rod wound coil (following to keep the same inductance).

Coils data (measured at measuring frequency of 10kHz):
L1
Inductance L=1.0mH
Resistance R=1.2E
Impedance Z=62E
Quality factor Q=54

L2
Inductance L=2.5uH
Resistance R=0.1E
Impedance Z=0.18E
Quality factor Q=1.5

Wire used for both coils: enamelled copper wire 0.25mm (AWG30 or AWG31). I do not remember how many turns was wound, so you have to follow inductance, which is more correct, cause you very likely do not have the same ferrite rod.
Coils have to be tuned on maximal sensitivity by multi-direction moving both coil to reach the best position, then fixed and glued by composite resin.
R33, originally 3kOhm, was replaced by potentiometer (by which we can turn detector in Earth-magnetism sensor) of 100kOhm (look at picture).



That's all. Enjoy sensing our lovely Planet.

Hi WM6,
Thank you for the infos.
This is the best presentation to show how to mod an experimental LRL that I have seen.
It gives ALL of the information needed with easy to read diagrams.
We have never seen such a well written LRL project in this forum.

Of course, other kinds of LRLs are more complicated, and may require more difficult details.
But hopefully others will notice your exceptionally good presentation and pattern their posts for mods to be similar.

Thank you for a job well done.


Best wishes,
J_P

[taxma1981]

fuss for 20 points depth; I have something better

[WM6]

Thank you for a job well done.

Thank you J_P, I highly appreciate your opinion, for your invaluable contribution here.

We should not forget that ivconics "Zahori" was one of the first comprehensive LRL projects on Remote forum.

I don't know why up-loader shrink some picture, here one in original resolution over deposit file:

[J_Player]

Thank you J_P, I highly appreciate your opinion, for your invaluable contribution here.

We should not forget that ivconics "Zahori" was one of the first comprehensive LRL projects on Remote forum.

I don't know why up-loader shrink some picture, here one in original resolution over deposit file:

Hi WM6,
You are correct...
Ivconic was the first to post a schematic for an experimental LRL project.
It was a brilliant project, which even Ivconic said was bogus... that it could only detect static electricity.
We knew it, but we continued to develop the circuit and explore the capabilities to see if there was any hope for this detector.
Even Carl-NC said: "this is a very interesting thread, and exactly what this forum is intended for. Thanks for all the contributions".
See here: http://www.geotech1.com/forums/showt...0957#post40957

This was a classic project that paved the way for future projects.
Since Ivconic's first project we have seen some very sketchy and poorly described LRL projects until now...
when we finally see the concise and well-done project that you posted.

Hopefully some readers can find a way to extend the range that you found and get the locator to find buried metal...

Best wishes,
J_P

[nelson]

Hi WM6

Many thanks for the information.
I will try after i finish my hammerhead and barracuda, that are on the bench.

Best regards

Nelson

Hi Nelson,

if you or anyone wish to try, here all data needed:

I moded Security handheld metal detector model: LT-88B, producer ZhangFei, China.

Air core coils was replaced by on ferrite rod wound coil (following to keep the same inductance).

Coils data (measured at measuring frequency of 10kHz):

L1
Inductance L=1.0mH
Resistance R=1.2E
Impedance Z=62E
Quality factor Q=54

L2
Inductance L=2.5uH
Resistance R=0.1E
Impedance Z=0.18E
Quality factor Q=1.5

Wire used for both coils: enamelled copper wire 0.25mm (AWG30 or AWG31). I do not remember how many turns was wound, so you have to follow inductance, which is more correct, cause you very likely do not have the same ferrite rod.

Coils have to be tuned on maximal sensitivity by multi-direction moving both coil to reach the best position, then fixed and glued by composite resin.

R33, originally 3kOhm, was replaced by potentiometer (by which we can turn detector in Earth-magnetism sensor) of 100kOhm (look at picture).

That's all. Enjoy sensing our lovely Planet.

[g-sani]

Hi George.
I am fine, you??
Next month i believe to finish with my farm so to "play" a little with the DCH.
After August 15 you can call me

Regards

Hi, Geo
Work should be anybodys priority.
I give you a call late August George
All the best

[J_Player]

Hi, Geo
Work should be anybodys priority.
I give you a call late August George
All the best

Geo has the real treasure is on his farm.
When people become hungry enough, they will trade their gold for food.

Best wishes,
J_P

[g-sani]

Geo has the real treasure is on his farm.
When people become hungry enough, they will trade their gold for food.

Best wishes,
J_P

I know my friend.
The way things go now in Greece it will be only farmers and shepards that they will survive.
Somebody should consider themselves very lucky to have friends like George for the days to come.
I am repairing the house up in my fathers village and I see myself as a former farmer in a smaller scale in the near future J_P.
Instead of fishing trout for fun we will fish them just to feed ourselves.
Regards
g-sani

[Geo]

Hi, Geo
Work should be anybodys priority.
I give you a call late August George
All the best

Hi George.
Now i am "free".
You can call me.

Regards

[Geo]

Now it is time to begin the modification of my "new PD". I constructed a new one with new coil but don't work as the first one. i have much work to do
I attach the photo from inside the PD.

[WM6]

Now it is time to begin the modification of my "new PD". I constructed a new one with new coil but don't work as the first one. i have much work to do
I attach the photo from inside the PD.

Nice work Geo. I can saw some interesting black points inside.

[Morgan]

LRL TEST

Now it is time to begin the modification of my "new PD". I constructed a new one with new coil but don't work as the first one. i have much work to do
I attach the photo from inside the PD.

Good work Geo

Next time you visit my country bring this one,and we can make some test near the gold medalion. And then we will go to a search,some competition,your new PD and my PDK

Regards