Tribute to Andy Flind

[Geo]

This is good notice, you obtain 60% more. With this device is very easy to found treasure at distance, 70-80 meters. Coil stimulator can be useful but sometimes not necessary. The stimulator put more sensitive the input, because is as a reference, introduces a small mV signal in input, so incoming signals can be more easy detectable.

Recently MFD found a big couple of oxidated nails used in rails at some meters... so thing also big oxidated iron box full of gold can be detectable.

Regards

Hi Esteban.
I am not sure if you understood me about my LRL. The basic is a mod passive receiver + stimulator, but this time at higher frequency.
What do you think??? is it good to connect a second detector on it??

Regards

[Geo]

What is this? Creme or massage oil?

WHY?????
Please... If you don't know something, it is better to ask about it or to not answer,... but don't laugh with us.

Regards

[Esteban]

Hi Esteban.
I am not sure if you understood me about my LRL. The basic is a mod passive receiver + stimulator, but this time at higher frequency.
What do you think??? is it good to connect a second detector on it??

Regards

I don't connect another second detector. But also works with secondary detector.

[Geo]

I don't connect another second detector. But also works with secondary detector.

Thank you Esteban.
Next days if weather would not be good i"ll try to connect a second one.
Who knows???

Regards

[Geo]

Hi.
Today is a good day but how to try the LRL??
Yesterday i replaced the 9V batteries with a pack of 4x1.2V rechargeable and o pcb with TL497A. All are OK but the LRL don't detect the electromagnetic field at Lab. Problem??? the oscillator of TL497!!!
Pulses of it overload the input so it is not able to detect anything. Today i will try with a shielding coil for TL497 and if no results i will replace it again with 9V batteries.

Regards

[WM6]

Pulses of it overload the input so it is not able to detect anything.

Dont worry Geo, LRL is in perfect working condition, as all others LRLs.

[Geo]

Hi.
Today i went for test.
Sensitivity was very High. When i tried first at a place where there are buried some copper coins i took a very strong signal.
I turned the LRL to other direction and it beep again. After some experiments i saw that my pistol detected the horizons. I had the sensitivity just a clik before it beep. When i turned the pistol left, it beep at the line with south and north. When i turned it right it beep at the line with east and west. I reduced a little the sensitivity and stop to detect the horizons. As i walked it begun to beep again and again. It was a high voltage wire, at distance 15m, and 40cm height. It need for some livestocks to don't go out from farm. At other times before today, my pistol detected this wire from 3..5 m far. But near the coins i did not took any beep with this sensitivity. Maybe tomorrow to try to another place. I saw that the sensitivity is very very high, so i believe that i must detect the voltage near the buried objects.
Esteban, do you know any other way to reduce the detecting of horizons???

Regards

[Esteban]

Hi.
Today i went for test.
Sensitivity was very High. When i tried first at a place where there are buried some copper coins i took a very strong signal.
I turned the LRL to other direction and it beep again. After some experiments i saw that my pistol detected the horizons. I had the sensitivity just a clik before it beep. When i turned the pistol left, it beep at the line with south and north. When i turned it right it beep at the line with east and west. I reduced a little the sensitivity and stop to detect the horizons. As i walked it begun to beep again and again. It was a high voltage wire, at distance 15m, and 40cm height. It need for some livestocks to don't go out from farm. At other times before today, my pistol detected this wire from 3..5 m far. But near the coins i did not took any beep with this sensitivity. Maybe tomorrow to try to another place. I saw that the sensitivity is very very high, so i believe that i must detect the voltage near the buried objects.
Esteban, do you know any other way to reduce the detecting of horizons???

Regards

Horizons? All detectors are affected by magnetic field of Earth. When you have adjusted excluding it, well the difference is another cause, almost always metal buried many years. Of course, you can use a kind of dish connected to - , but you must found distance between dish and coil.

I modificate the old I have, but now with preamp. Look shielded cables in input, potentiometer and main PCB input. Also you can try shielding the core or the coil, deppend what you use. I use core and aluminum loop.

Regards

[Alexismex]

"but when they were upon the second one, the oscillator transistors got burned due to the intense fields"
What a big treasure !!! to kick *** the transistors, like e EMP from atomic bomb explosion !!!!
Make me laugh again, this thread is a delicatessen sensation for me and a positive enlightment for the technical forum....

[Geo]

"but when they were upon the second one, the oscillator transistors got burned due to the intense fields"
What a big treasure !!! to kick *** the transistors, like e EMP from atomic bomb explosion !!!!
Make me laugh again, this thread is a delicatessen sensation for me and a positive enlightment for the technical forum....

Hi Alexismex.
I don't have the knowlevel to understand and explain you what is happening. Simple.... i try, sometimes with results and other without results.
But i am good (not expert) with Lrods, i have found objects with them, I saw real LRL with perfect results... and of course i have friends who are rich from treasures who found with LRL. These are the reasons that tell me to continue experiment.

Regards

[Geo]

Horizons? All detectors are affected by magnetic field of Earth. When you have adjusted excluding it, well the difference is another cause, almost always metal buried many years. Of course, you can use a kind of dish connected to - , but you must found distance between dish and coil.

I modificate the old I have, but now with preamp. Look shielded cables in input, potentiometer and main PCB input. Also you can try shielding the core or the coil, deppend what you use. I use core and aluminum loop.

Regards

Thank you Esteban.
I must try another coil so to have the ability to shield it.
Now the coil has diameter about 10 cm. Who is your opinion??? to winding a biger coil or no.

Regards

[FrancoItaly]

Hi Geo
With my pistol, oscillator coil (a square of 25 cm) at 135 Khz, rx stage with more then 100M of impedance, no motion stage with push button retune, I sense a charged plastic rod at more then 2 m and a tree at 1 m and a stone wall at 80 cm, but I don't have a test target. The next week I will test my instrument near an old castle. My design is not similar to Morgan pistol, the sensor is a squared printed board of 5 cm, the amplification of rf stage is about 80 and after I rectify the signal.
Best Regards

[Esteban]

Thank you Esteban.
I must try another coil so to have the ability to shield it.
Now the coil has diameter about 10 cm. Who is your opinion??? to winding a biger coil or no.

Regards

I'm finish another MFD with 16 cm coil. I'll post here results of it. But with core and aluminium loop also at 23 hour (I test the last night) detect very well, better the couple of "green" coins in pile buried 15 years ago than stainless-steel gold platted clock buried 16 years.

[Esteban]

"but when they were upon the second one, the oscillator transistors got burned due to the intense fields"
What a big treasure !!! to kick *** the transistors, like e EMP from atomic bomb explosion !!!!
Make me laugh again, this thread is a delicatessen sensation for me and a positive enlightment for the technical forum....

Treasure knock (or destroy) fet input IC as CA3130 when his input is connected to antenna.

[aft_72005]

Hi Geo
With my pistol, oscillator coil (a square of 25 cm) at 135 Khz, rx stage with more then 100M of impedance, no motion stage with push button retune, I sense a charged plastic rod at more then 2 m and a tree at 1 m and a stone wall at 80 cm, but I don't have a test target. The next week I will test my instrument near an old castle. My design is not similar to Morgan pistol, the sensor is a squared printed board of 5 cm, the amplification of rf stage is about 80 and after I rectify the signal.
Best Regards

Hi Francoitaly

Congratulate .
I am interesting to your test result in real field .
Best regards.