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Offline b79Topic starter
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« on: August 12, 2009, 07:19:24 pm »
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im from Cagayan de Oro City, which means river of gold.

i have a property that is very near the known gold mine in gango. it also has a history of Japanese presence in ww2. we survey it for buried treasure with garrett gti 2500 detector. we did not find any possible buried treasure but the detector keeps on picking up gold nuggets signal specially on dry creek bed rock.

i wanted to detect the nuggets, sack/bag it and recover the nuggets thru panning or sluice. my problem is the metal detector because the owner of the garrett which i hired is only interested in YTH and wanted to operate only on sunday.

im posting this open invitation for partnership to anyone who has a metal detector. here's the term
 
1. 30/70..30% detector...free board and lodging.
2. 40/60...40% detector ...no free board and lodging

the buying rate of nuggets is P800 to 1000 /g. in my estimate, using a metal detector, 100g per week is very feasible. we will not be detecting inside tunnel. its surface gold mostly in dry creeks and small running streams.


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got their digging tools! sooner or later the buried loot:}

Offline b79Topic starter
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« Reply #1 on: August 12, 2009, 07:25:11 pm »
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admin,

i thought im on exclusive pinoy site. you may delete this post if i violated your term. ill transfer it to exclusive pinoy site. thanks

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got their digging tools! sooner or later the buried loot:}

Offline goldigger
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« Reply #2 on: August 13, 2009, 10:35:03 am »
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Quote:Posted by b79
im from Cagayan de Oro City, which means river of gold.

i have a property that is very near the known gold mine in gango. it also has a history of Japanese presence in ww2. we survey it for buried treasure with garrett gti 2500 detector. we did not find any possible buried treasure but the detector keeps on picking up gold nuggets signal specially on dry creek bed rock.

i wanted to detect the nuggets, sack/bag it and recover the nuggets thru panning or sluice. my problem is the metal detector because the owner of the garrett which i hired is only interested in YTH and wanted to operate only on sunday.

im posting this open invitation for partnership to anyone who has a metal detector. here's the term
 
1. 30/70..30% detector...free board and lodging.
2. 40/60...40% detector ...no free board and lodging

the buying rate of nuggets is P800 to 1000 /g. in my estimate, using a metal detector, 100g per week is very feasible. we will not be detecting inside tunnel. its surface gold mostly in dry creeks and small running streams.



b79;

Your estimate sounds low, both for what you can sell for, and how much you can find. This is a renewable resource.

Why not build a locator, the information is out there?

Even a simple BFO locator will find nuggets, if you had your own machine, you could search when and if you felt like it. It is called INDEPENDENCE.

goldigger

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Offline b79Topic starter
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« Reply #3 on: August 13, 2009, 05:03:07 pm »
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brian,

thanks for the guidance.

going for independence is good direction.

you see i got very interested when you taked about sluice in one of your post here. now i have found a good website who teaches how to build a homemade sluice.

with metal detector, would you  recommend a good website where i can get the info on how to build one?

thanks again.

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Offline GoldDigger1950
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« Reply #4 on: August 13, 2009, 05:13:10 pm »
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Right here is good for building a metal detector. Go here:

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You will find a wealth of information there and elsewhere on these forums.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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« Reply #5 on: August 13, 2009, 06:41:43 pm »
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Here is a cool set up!

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« Reply #6 on: August 13, 2009, 06:47:44 pm »
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Quote:Posted by goldigger
b79;

Your estimate sounds low, both for what you can sell for, and how much you can find. This is a renewable resource.

Why not build a locator, the information is out there?

Even a simple BFO locator will find nuggets, if you had your own machine, you could search when and if you felt like it. It is called INDEPENDENCE.

goldigger


Back in 1972 my first machine was a BFO and it only duge down about 3-6 inches.   IF YOU COULD KEEP IT TUNED!

I wish I still had it.

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Offline goldigger
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« Reply #7 on: August 14, 2009, 04:12:42 am »
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b79;

Website? For metal detectors? No, I do not know any, it might confuse me.  Funny

I design my own, but if you want simple, like BFO, I can give you something, in fact I uploaded an circuit, that I got from a member in Argentina... its an old design, fairly simple, and I improved it, redesigned it for 30 kHz, which is VLF, or was until the 5 kHz ones started appearing, I would call them ELF (Extra Low Frequency)

I kind of modernized it for the average available transistors, 2N2222 (NPN) and 2N3906 (PNP) I rearranged the coils so one end was grounded, this cut out a lot of unnecessary parts so now the search coil goes through coax to thhe oscillator with no chance of shorting the battery.

Coils will be hard to do, because you need a lot of fine insulated wire. But I suggested making the coil form from 1/2 inch soft copper pipe, split around the outside. This makes a coil form and a shield. the coax braid has to be wired to the copper pipe so the copper is grounded.

What I can do is type up directions, for the coils, and upload them to you, as well.

You can get transistors and other stuff from old TVs, just be careful of the picture tube, because it may have a 20,000 volt charge, still on it and the glass is LEAD glass so it has to be disposed of , safely.

I will upload the schematic which is in poor shape, try to print it and if you need to, pencil in the faint stuff. I will redo it and make it darker, but meanwhile, you have something.  Great

Note, the wires may seem to cross but there is no connection except where ther is a big dot. The original was terrible.

The LCR bridge (it has limits) can use a 2N2222 type as it is similar enough.... it is designed to put a potentiometer (10k) from the green binding post, to a black one then a coil or resistor or a capacitor (0.0016 ufd smallest) from the red binding post to the other black binding post. The oscillator should be set to 10,000 Hertz. It will measure coils from about 500 uHYs to 155, 000 uHYs and capacitors from 0.0016 ufd to 1.55 ufd., suitable for VLF detectors.

Plug in a set of Mono 16 ohm phones and turn the potentiometer until the tone disappears, or the DVM reads zero. Then measure  the pot. and this equals the resistance, if a resistor, and impedance if a cap or coil. You have to know the formula for converting impedance to capacitance or inductance. But it is simple. I will include some simple calculator formulas with the coil data.

goldigger

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« Last Edit: August 14, 2009, 04:30:05 am by goldigger »
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Offline b79Topic starter
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« Reply #8 on: August 14, 2009, 04:59:59 am »
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brian,

thanks a lot.

i have some units in electronics but that was long ago (bill gates was still in his garage) and i have not practice it. after graduation i went to sales, in a hurry to get rich ;{...

anyway, il let my nephew assembly it for me. he has an electronic repair shop and has a lot of junk old tv. ill just print your post so he could read and follow your instructions.

how about the coil? is there a specific dimension?

thanks a lot



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Offline b79Topic starter
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« Reply #9 on: August 14, 2009, 05:08:05 am »
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hoomefire,

thanks for the plan. makes my work easier with the complete dimension and materials in it. thanks a lots. this is really cool.

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