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Offline Eugene52Topic starter
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« Reply #30 on: August 01, 2009, 12:22:36 am »
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Quote:Posted by ram
hello eugene52, (my idol) i need some effective data of delta pulse/xr71 search coil from 20cm to 45cm. and also the data of 1x1meter square coil for my plan to field test the dp in various search coils and to post in this forum the result.

hello to all readers, this is the result of the delta pulse/xr71 schematic and pcb gave to me by eugene52 and yielded more than very good result.  thank you very much eugene52..

search coil data:23 turns #24swg with 40cm dia.
flwng results:
note: steel ammo box 7x8x12 inch full loaded with copper cartridge of cal 5.56mm ammos.
7x8x12 steel ammo box at 5ft covered with soil,rocks=detected
7x8x12 steel ammo box burried at 5ft in L type to simulate undisturbed soil=detected
i also tested the capability of dp in 5ft water and still detected the steel box.

Q, why ammo box?
A, this is my smallest target.



Excellent Work Ram !!! Thank-You posting some good Field Tests . I think anyone interested in building a Good PI should build the Delta Pulse/XR71 !!! You can build many shapes and sizes of PI coils as long as the total DC resistance of the wire stays around 2.0 ohms or greater !! HH and Best Regards.......Eugene

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« Last Edit: August 01, 2009, 12:24:50 am by Eugene52 » 		Logged
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Offline ram
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« Reply #31 on: August 01, 2009, 06:59:47 am »
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yesss! my idol, delta pulse/xr71 metal detector is a good detector my field test shows.

now, the delta pulse detector/xr71 is tested, to all dp/xr71 builder, be sure to use the schematics and pcb board trace and .lay file posted by eugene52  then i'll guarantee your satisfaction in building the dp/xr71 metal detector.

one thing, the five controls and one reset button and the meter, you can play those controls effectively for various functions, eg. deep of the target,sensitivity,tone,can simulate geiger counter tone like detecting radio active materials. the best i've noticed in tone  is clicking tone while you are approaching the target and not affected by grasses, bushes,holes,water,mud,uneven grounds and miniralized soil. but, be sure to field test the machine so that you know the reaction of the machine when subjected to actual usage and the effectiveness.

this result is taken from 40cm dia coil with #24swg enamelled wire and 23 turns with 6ft rg58 coax cable (belden u.s.a.)
i use MF (mentenance free) 12 volt motorcycle battery 7amperes

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« Reply #32 on: August 13, 2009, 12:57:41 am »
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pls give someone part list for
 delta pulse

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Offline erolunall
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« Reply #33 on: August 13, 2009, 05:43:55 am »
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hello

You can find all info about Delta pulse 1 side pcb.
a lot of people made it working excellent.

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Regards
Erol

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« Reply #34 on: August 13, 2009, 05:51:51 am »
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Coil examples for Delta

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« Reply #35 on: August 13, 2009, 08:13:41 am »
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my eu52 dp detector.very powerful detector and very stable. with my water proof search coil.

for lcd panel just add ready made lcd vu or led vu. use stereo indicator.left channel for find indicator, right for battery level indicator. no need pic.

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« Reply #36 on: August 13, 2009, 08:29:53 am »
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in latvia i cant get lm556 do my delta pulse will work whit ne556

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« Reply #37 on: August 13, 2009, 09:34:49 am »
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masons21;  Waveing

Hi, every new member has to go  through the 15 post requirement, before this stuff is freely available, then its wide open!

Of course, even then, it depends on your needs, some stuff is old and mostly not available in its entirety.

Good luck, hope you find it.  Great

The LM556, is replaceable by a 556, as the 556 is a DOUBLE 555 and has different pin arrangements, than a 555. Look for NE556, 7556 possibly, TLC556?? Just plain 556 should be the same. I misread your post, the first time so this one has changed 3 times!  Funny

goldigger (Brian)

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Offline Eugene52Topic starter
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« Reply #38 on: August 13, 2009, 11:40:15 am »
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Quote:Posted by erolunall
hello

You can find all info about Delta pulse 1 side pcb.
a lot of people made it working excellent.

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Regards
Erol


Hello again Erolunall  . We are Very Happy to see you on Thunting.com . Your Metal Detector knowledge and Electronic experience is very welcome Here !!!!! Thank-You for joining us and I hope you stay a member on this forum for a long time , then we will have a super  "Electronics Team" here .
HH and Best Regards.........Eugene


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« Reply #39 on: August 13, 2009, 10:40:28 pm »
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i have problems with lf357 in latvia can i replace it with somting pls help

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