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Offline xavier
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« Reply #10 on: June 25, 2015, 02:41:45 am »
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http://www.geotech1.com/cgi-bin/pages/common/index.pl?page=metdet&file=/projects/fastcoils/index.dat
       There's no such thing as a complicated pi coil to buil, VLF yes and only because of the bucking coil. A home made coil with work just as well as a bought coil if not better if you build it correctly.  There is a lot of good information about coils, I suggest that you have a look at the one posted in the geotech  forum, there is the link for you at the top of my post (some how could not get it at the bottom of the page using my tablet)

Have fun and a great built.


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So many questions so little time

Offline sinclairuser
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« Reply #11 on: June 25, 2015, 01:39:56 pm »
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hi X, when i said building the coil was the hardest part i mean mechanically, winding a pi coil is quite easy as you said, but making a shell and getting it watertight can be a real pain.
i recommend searching for "don bowers coil shells" on google he makes and sells some good ones, cheap too.

p.s. added a link to dons page

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https://sites.google.com/site/dbcoilshells/home


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open source hardware supporter

Offline Mudflap
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« Reply #12 on: June 25, 2015, 06:58:56 pm »
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Quote:Posted by sinclairuser
p.s. added a link to dons page

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https://sites.google.com/site/dbcoilshells/home




A lot of nice info there. Thanks for sharing.



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Offline adame
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« Reply #13 on: July 15, 2015, 09:12:01 am »
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hi all
is there other sites have other kits and of cours trusted
i found this but i'm confusing

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www.teknolojiekibi.com

 and this sell Sniffer xr71 he said (Maximal deep for large target  up to 6 meter whit 1x1m. coil)

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http://powerscan.eu/cart/index.php?route=product/category&path=20


please need help because i want to buy kit (electronic  board ) and i will make th coil at home ,
i want to use it to detect large size target 
regards

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Offline Homefire
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« Reply #14 on: July 15, 2015, 10:03:18 am »
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  The Sirf PI is like the old Sand banks.  Simple, Works and Kicks Ass. I'm working on finding a way for it to get below on a Sample Delay of 10 us!   This is were gold is.  With the right sample and Coil I think it can do it.  I don't care much about the Ground Balance. I started on a BFO and learned the tunes.

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« Reply #15 on: July 15, 2015, 06:44:29 pm »
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homefire , i'm looking for ready kit ,because i tried to make TGSL and pulse of gry but i fail because parts are poorly qualtiy and sometime i ddn't find right parts

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« Last Edit: July 15, 2015, 06:47:00 pm by adame »
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Offline 6666
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« Reply #16 on: July 15, 2015, 07:11:43 pm »
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Adame
what type of treasure do you seek and at what depth ?

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« Reply #17 on: July 16, 2015, 07:16:52 am »
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2 to 3 meters and gold no mettre if it detect all metal

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Offline Homefire
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« Reply #18 on: July 16, 2015, 08:20:54 am »
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No detector is that good.   You need to do more research on Metal Detector.    It seems you do not know there limits.

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« Reply #19 on: July 16, 2015, 10:47:07 am »
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so what about this , is fake ?

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http://powerscan.eu/cart/index.php?route=product/category&path=20

in TECHNICAL CHARACTERISTICS the saller said
 "Maximal deep for large target  up to 6 meter whit 1x1m. coil"


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« Last Edit: July 16, 2015, 10:50:09 am by adame »
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