dr. Best Ultimate Single Chip Two Antennas LRL

[WM6]

Long avaiting, best of the best: dr. Best Ultimate Single Chip Two Antennas LRL is finally here.
Built around single Burn Browns chip INA121. Amazing! Never seen to this day, even on TV.

Order INA121 chip today - right now!

Seat down and enjoy!

All data on schematic (PCB 2.2x2.2 inch).

Dont use near to banks, jewelery or exchange posts! Never!

Here you are, complete schematic and PCB:
(here some simplified without output amplifier /V to F converter - marked as IC1/ which is replaced by simple LED indicator, but you can use instead of led indicator some kind of VU meter or add your own amplifier, as you wish,,, depending on your soil condition R1 can vary from 5 to 20 Ohms ,,,, put all circuit in metal (copper or rather silver) housing binded to ground point,,, and yes, spacing between antennas have to be from 3,5 and 5,3 cm).

[Geo]

Hi WM6.
Any details for L1, L2???
Is there any kind of sample ?????

Regards

[Esteban]

Hi WM6.
Any details for L1, L2???
Is there any kind of sample ?????

Regards

Geo

This doesn't work, and not in this very poor implementation. Is a simple joke.

Regards

[WM6]

Hi WM6.
Any details for L1, L2???
Is there any kind of sample ?????

Regards

In fact, L1 and L2, are not critical Geo.
You can compensate deviations by telescope antenas.

You can put on your finger 3 to 5 windings (dependent on which finger you use) of 2 mm dia Cul wire by same spacing between windings and you came out by 56nH.

I am sorry, but dr. Best are not alowed to publish photo of his more sophisticated final LRL device. He give us only simplified schematic and PCB of pure joy due personal bankruptcy his former wife.

[WM6]

Geo

This doesn't work, and not in this very poor implementation. Is a simple joke.

Regards

You never judge other products according to your own products.

Device is working, and working even far better than all Mineoros. Which are just extremly expensive joke.

And Esteban, take notice that the dr. Best plans may not be used commercially.

[Max]

Geo

This doesn't work, and not in this very poor implementation. Is a simple joke.

Regards

doesn't work ! poor implementation! Simple joke!

Not like yours , uh ?

Kind regards,
Max

[Geo]

Geo

This doesn't work, and not in this very poor implementation. Is a simple joke.

Regards

Hi Esteban. INA121 is a low noise amplifier with max gain 10.000. So at low frequency it can detect (maybe) a signal smaller than 1uV. But it need some filters.....
One answer: does it see any different between the 2 antennas???
Regards

[J_Player]

Hi Esteban. INA121 is a low noise amplifier with max gain 10.000. So at low frequency it can detect (maybe) a signal smaller than 1uV. But it need some filters.....
One answer: does it see any different between the 2 antennas???
Regards

Yes, good question.
If both antennas are close together, then maybe maybe they both will see the same gold signal. Maybe it is important to make the antenna spacing some distance from each other in order to detect the presence of gold signals shooting in the direction of the antennas.

Best wishes,
J_P

[WM6]

Yes, good question.
If both antennas are close together, then maybe maybe they both will see the same gold signal. Maybe it is important to make the antenna spacing some distance from each other in order to detect the presence of gold signals shooting in the direction of the antennas.

Best wishes,
J_P

As you stated, placement of antennas can be important question. Related to soil antennas have to be stacked. So below antenna load more capacitance from soil in comparisons to upper antenna so signal by right antennas position cannot be the same. Additional this help to establish right direction to gold cause dip can be strongest in position in which no one of antennas cover apart other antenna reflected VHF signal from buried gold. A strong and sharp signal is obtained only from the precious metal with a smooth surface with no rust, therefore, filters are not necessary.

But for more advanced and experienced LRL user dr. Best suggest to build spiral wide-band antenna which represent big improvement in comparisons to telescope antennas. Spiral antennas are connected by center of windings to pin2 and pin3 of INA121, by other end of coil over 22pf C to ground point and spaced between each other for 1/2 of diameter of antenna (you can figure it by attached picture).

Even better than spiral antenna can be Pyramidal logarithmic quadro spiral antenna as currently used in their LRL devices dr. Best, but it is hard to build in the home workshop.

[J_Player]

...But for more advanced and experienced LRL user dr. Best suggest to build spiral wide-band antenna which represent big improvement in comparisons to telescope antennas. Spiral antennas are connected by center of windings to pin2 and pin3 of INA121, by other end of coil over 22pf C to ground point and spaced between each other for 1/2 of diameter of antenna (you can figure it by attached picture).

Even better than spiral antenna can be Pyramidal logarithmic quadro spiral antenna as currently used in their LRL devices dr. Best, but it is hard to build in the home workshop.

Yes, We can see the construction of the spiral antenna for big improvements over the telescopic antennas. But what about the Pyramidal logarithmic quadro spiral antenna? Is this antenna only used in the Dr. Best secret LRLs?

Best wishes,
J_P

[WM6]

Yes, We can see the construction of the spiral antenna for big improvements over the telescopic antennas. But what about the Pyramidal logarithmic quadro spiral antenna? Is this antenna only used in the Dr. Best secret LRLs?

Best wishes,
J_P

In the final version of the Ultimate LRL rev. 3.2, dr. Best use only Pyramidal logarithmic quadro spiral antenna. Probably antenas structure not to be publish until anything gold is find in the ground.

[Geo]

As you stated, placement of antennas can be important question. Related to soil antennas have to be stacked. So below antenna load more capacitance from soil in comparisons to upper antenna so signal by right antennas position cannot be the same. Additional this help to establish right direction to gold cause dip can be strongest in position in which no one of antennas cover apart other antenna reflected VHF signal from buried gold. A strong and sharp signal is obtained only from the precious metal with a smooth surface with no rust, therefore, filters are not necessary.

But for more advanced and experienced LRL user dr. Best suggest to build spiral wide-band antenna which represent big improvement in comparisons to telescope antennas. Spiral antennas are connected by center of windings to pin2 and pin3 of INA121, by other end of coil over 22pf C to ground point and spaced between each other for 1/2 of diameter of antenna (you can figure it by attached picture).

Even better than spiral antenna can be Pyramidal logarithmic quadro spiral antenna as currently used in their LRL devices dr. Best, but it is hard to build in the home workshop.

Hi. We need filters at least for 50/60 Hz. Also we have strong signal at gold even if near it there is rust.
Regards

[WM6]

Dr Best Ultimate Spiral Antenna LRL

Spiral antenna need some changes in schematic nad PCB. Separate inductor of 56nH not needed anymore, it is now included in antenna inductivity.

All mods here in this new design.

[WM6]

Hi. We need filters at least for 50/60 Hz. Also we have strong signal at gold even if near it there is rust.
Regards

Hi Geo, if you work under power line you need 50/60Hz filter for sure. The same near railway. About 500 m away from such disturbances you do not need filter anymore. But if you wish you can put VLF compensative capacitor 22nF in parallel to R1. In this case you can not count on VLF signal detection. Dr. Best rejects the use of filters. In case of strong outer disturbances spiral antenas can bi installed in plastic tube (as for sewer use) shielded by householding alu foil connected to ground point.

In case of gold signal is strong and sharp. In case of rusty ferro signal is still strong but towed and not sharp. In case of gold and rusty ferro combination signal is strong and towed with sharp dips. One need reasonable practice to achieve good distinguish between signals.

[Fred]

Where do you glue the calculator ?