MINEORO 2008 MODS.

[Jeg]

Originally Posted by fmnotes

In one, the company's machine, the original one, that is, I use the alkaline batteries recommended by the company. In the second device I made I have an external power supply and I feed it with a battery that is hung on the shoulder, with a cable that I connect externally to the detector machine.

That is great. So you have more working time on field!! I think i made a mistake on using an lm7809 instead of 317 like in the original. When i have the potentiometer at the edge of detection, then when it finds a target it starts beeping for ever until i turn the pot at a lower level. It is so annoying!!

[fmnotes]

Originally Posted by Jeg

That is great. So you have more working time on field!! I think i made a mistake on using an lm7809 instead of 317 like in the original. When i have the potentiometer at the edge of detection, then when it finds a target it starts beeping for ever until i turn the pot at a lower level. It is so annoying!!

This is usually created when you have increased sensitivity to the machine. And also when the target it has detected is very strong its signal.
I don't think it's because you used the 7809. Just don't set your machine to the highest point of your potentiometer. Bring it down a few units.

[Jeg]

Originally Posted by fmnotes

This is usually created when you have increased sensitivity to the machine. And also when the target it has detected is very strong its signal.
I don't think it's because you used the 7809. Just don't set your machine to the highest point of your potentiometer. Bring it down a few units.

Indeed i have boosted its sensitivity!!! I will take it down again to see how it performs. Thank you brother!!

[abdou2014]

Hi,i want to ask Mr Geo about the antenna amplifier, used NPN or PNP transistor with LM380 ?

[Jeg]

Hi guys.
I would like to ask if you have any experience of detecting iron rust by using your mineoros.
My own clone is sensitive on rust and detects big iron masses full of rust from distances like 50m or even higher. My latest find was an iron barrel completely rusty which was laying on the ground for at least 40 years. Do you have such an experience or is it just me?

[abdou2014]

Originally Posted by abdou2014

Hi,i want to ask Mr Geo about the antenna amplifier, used NPN or PNP transistor with LM380 ?

THE TRANSISTOR IS NPN OR PNP ?