mineoro fg/90

[humhum]

Originally Posted by Locator

Hello,
do you think that Mineoro fg-90 works with the help of a radio station in VLF or MW

or it can work and without help?

Mineoro Tube is Ionic Antenna for find from Distance precious Metal and works with very High wave (Ghz) ,
But Mineoro Electromagnetic Loop Receiver is for Locate place of buried and also for Deep meter , works with Radio waves from 50Khz to 150Khz .

[Geo]

Originally Posted by Locator

George,do you believe that Mineoro FG-90 is more sensitive than FG-80?


Regards

No. They have the same (exactly) receiver. Only diference is the working frequency.
Also they have same sensitivity.

[Locator]

Fg-80 works at 91khz but Fg-90 in which frequency?

[Geo]

somewhere betwen 35 and 40 khz.
I don't remember exactly, but don't you think that its critical

[abdou2014]

Thank you ,

how tested our magnetic receiver mineoro, does it react to a magnet or to a spark ???

[Geo]

Originally Posted by abdou2014

Thank you ,

how tested our magnetic receiver mineoro, does it react to a magnet or to a spark ???

I never tried a magnet. DC2008 and FG80 reacts to battery spark from 60..70 cm.
Also i never tried FG90 on battery spark.

[abdou2014]

Thank you I think it detects the spark with the second receiver (electric) and not with the magnetic loop circuit , I want to know what is the reaction of the magnetic loop circuit alone , did you do a test with your mineoro clone

[Geo]

I have try it at both versions... (Original and modified). The reaction is from magnetic receiver, not from electric.

[abdou2014]

Thank you, I am missing the values between the audio amplifier and the beep generator if it's not too much to ask

[abdou2014]

I tried with a small audio transformer, a little stable, detected a 1.5 v spark from 1.5 meter

[abdou2014]

with some modification , 2.5 meter, it's amazing

[abdou2014]

is the ferrite antenna in the frame a stimulator ???

[brain]

Originally Posted by abdou2014

Thank you, I am missing the values between the audio amplifier and the beep generator if it's not too much to ask

Can you post this schematic?

[abdou2014]

excuse me my friend, but I don't, I use my own scheme

[brain]

Originally Posted by abdou2014

excuse me my friend, but I don't, I use my own scheme

I said the schematic in the picture

[abdou2014]

I do not have the values of the components of the diagram, I use another receiver

[Geo]

Originally Posted by abdou2014

is the ferrite antenna in the frame a stimulator ???

I don't think.
But... only Esteban knows it, if he still remember it.

[abdou2014]

Thank you Geo , there is something weird, I feed both receiver and beep circuits with a 9v battery and 5v regulator,
As the battery works too much and the voltage decreases, I can calibrate my receiver in a very sensitive position 2.5 meters for a 1.5v wire, and when the battery is recharging it cannot be in this position.

[abdou2014]

I noticed when the beep gives sound, the receiver led goes out, it's like a ballance , and if each circuit has its own battery, I will not have this results

[Geo]

Originally Posted by abdou2014

Thank you Geo , there is something weird, I feed both receiver and beep circuits with a 9v battery and 5v regulator,
As the battery works too much and the voltage decreases, I can calibrate my receiver in a very sensitive position 2.5 meters for a 1.5v wire, and when the battery is recharging it cannot be in this position.

I can't answer without see the schematic of receiver....

[humhum]

Originally Posted by Geo

I don't think.
But... only Esteban knows it, if he still remember it.

16 Khz , OSC .

[abdou2014]

Originally Posted by Geo

I can't answer without see the schematic of receiver....

It's Sony M-450 Microcassette Recorder with preamp and tranfo + beep generator

[Geo]

This has nothing to do with Mineoro MF receiver .

[abdou2014]

what's the difference, what's special about the mineoro receiver ???

[Geo]

Maybe nothing special... but it is n't a tape recorder.
Preamplifiers of tape recorders have filters so to work according to the NAB curve.
We need a flat curve.