MINEORO 2008 MODS.

[Morgan]

sure I know that since many years ago, I talk about ancient buried gold

[Geo]

Hi.
My modified Mineoro can locate ancient coins (at good terain) from 30...35 m easy.
Look here.... http://www.longrangelocators.com/for...7&postcount=15

Regards

[humhum]

Originally Posted by Geo

Hi.
My modified Mineoro can locate ancient coins (at good terain) from 30...35 m easy.
Look here.... http://www.longrangelocators.com/for...7&postcount=15

Regards

Dear Geo , very good finding , but (max 30-35m) distance is very short for Mineoro .
With experiment it finding from Km , but only in good wheather coundition .

Regards .

[Geo]

Don't believe what they say!!!
So long distance is possible only with ferrite antenna.

[humhum]

Originally Posted by Geo

Don't believe what they say!!!
So long distance is possible only with ferrite antenna.

Master , I not mean for Original Mineoro , I mean for my home made Mineoro , that find big Object from Km , this is different from Original Mineoro , but also use Org. Mineoro Sensor .

Regards

[Geo]

At my tests the Mineoro sensor (Ion Chamber) did n't give good results .

[Geo]

Last years i don't interesting for very long distance. 50m are enough for me.
I am interesting more for 2 things....
a. the ability to find the center (pinpoint) and
b. the ability to work at more difficult conditions

[humhum]

Originally Posted by Geo

Last years i don't interesting for very long distance. 50m are enough for me.
I am interesting more for 2 things....
a. the ability to find the center (pinpoint) and
b. the ability to work at more difficult conditions

About my home made Mineoro is so:
a) Find of Center is around 1m X 1m
b) No , not works in difficult condition , only in special coundition .
But my last build Alonso PD works in all wheather counditions up to 300m ,
and with center pinpoint around 30cm X 30cm .

I've seen results by experimenting a lot in the real field, also in my garden .

Regards.

[abdou2014]

Originally Posted by Geo

Finally i replaced the electric field detector with a difference one because the first was not so stable. The new is very stable and has more gain.

I built a similar version, magnetic + electric receivers, my electrical receiver is based on TDA7000 ,

what is the inductance of your ferrite magnetic field receiver and the diameter of the wire ?

can I have the schematic of your electric 3 ICs receiver ?

Thank you Geo

[Geo]

Hi.
The coil inside the Pot Core has inductance 2mH.
I don't have the schematic of electric field detector, i lost most schematics before 2 years after a HD crash. I have only some pcb's. The basic IC is an INA-121...

[abdou2014]

Thanks Geo

[folharin]

greetings to newbies

[abdou2014]

I built a new loop antenna for my mineoro, 494 mH I know it's too much but for VLF reception, I don't know the best is a large inductance with parallel picofarade or a medium inductance with parallel nanofarade ???

[abdou2014]

2 mH according to Mr Geo it is not for a VLF reception , on what frequency does the antenna resonate with 2 mH ????

[Geo]

Depended of the tuning capacitor.
A total capacitance of 500pf and an inductance 2mh gives a frequency near to 100Khz.

[abdou2014]

Thank you very much

[ishtar hunter]

Originally Posted by Geo

The antenna loop

Hi dear Geo .
Do you can help me about mineoro FG90 device?
I need the information of these two ferrite cores.
The infrared receiver of my device is defective, what type of infrared should I use instead?
https://s6.uupload.ir/files/img-2021...012-1_vzo6.jpg
<a href="https://uupload.ir/view/img-20211110-wa0012-1_vzo6.jpg" target="_blank"><img src="https://s6.uupload.ir/files/img-20211110-wa0012-1_vzo6_thumb.jpg" border="0" alt="آپلود عکس" /></a>

[Geo]

Ferrite core of magnetic receiver is IP6 / 2000 (potcore).
I have n't details of the other ferrites back of the ion chamber.
FG90 has n't IR receiver

[Geo]

Originally Posted by Geo

front side....

I decided to replace the "electric" receiver.
I new one with more than 120db gain is ready. Now i try to fix it inside the new case.

[abdou2014]

i have this schema but you made some mod , can you give info ?

[Geo]

Nothing special. One more filter for 40Hz and up!!!

[abdou2014]

i need details about input, there ara two 10M and Pot , how its connected ?

[Geo]

One antenna for every input. Potentiometer was only for the test.

[abdou2014]

i tried it with original schema and esteban pcb and don't work for me

[Geo]

For me works ok.
I need best weather to fine adjust it....