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Treasure Hunting & Metal Detecting Forum Message Boards - Detector Hunter Whites Minelab Tesoro XP > Tech Talk > Metal Detectors > PI Designs & Deepseekers (Moderators: Eugene52, Cornelius) >

DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR

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mohammad ali12341234

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #700 on: May 14, 2015, 03:34:20 am »

سلام من از ایران هستم
ونقشه کامل پی دی اف این مجموعه رو نیاز دارم ممکنه در مورد برد این دستگاه و لوپ هم توضیحاتی بفرمایید

Posted on: May 14, 2015, 03:27:08 am

I want circuit diagram xr71

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #701 on: May 14, 2015, 08:47:30 am »

I want doesn't get. Introduce yourself first please.

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So many questions so little time

mohammad ali12341234

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #702 on: May 14, 2015, 10:39:44 am »

I am from Iran
Full maps PDF I need this set up may also explain the range of the device and loop Here

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I am from Iran
Full maps PDF I need this set up may also explain the range of the device and loop Here

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Posted on: May 14, 2015, 10:33:37 am

send me bilan_qom.komtell@yahoo.com

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #703 on: October 09, 2015, 03:02:34 pm »

Hello guys .. this is first experience with Delta Pulse\sniffer xr71 .. Finally I finished built it after about 1 month .. now the circuit working very good Wink

and stability without heat .. I posted the schematic that i accomplished .. this is some of information and results:
- i am only replaced tl062 with tl082
- And all values are same in the schematic like: ( R5 = 2.2K ohm - R6 = 680 ohm - C30 = 10000 uf - R23, R24, R25, R26 = 4.7K ohm 1%)
- coil : 40cm \ 24tur \ 0.55mm \
The results of detecting is: Cheesy

- coin at 30-40 cm
- Stainless Steel Cup at 50-60 cm
- Stainless Steel disk at 90-110 cm

sorry for my bad English ..

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saker

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #704 on: October 21, 2015, 05:40:43 pm »

hallo .. plz help me .. delta pulse is very good for iron but why it is not Sensitive for gold?
is there any Modify to work more Sensitivty for it ?

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #705 on: October 22, 2015, 08:52:30 am »

	Quote:	Posted by saker
hallo .. plz help me .. delta pulse is very good for iron but why it is not Sensitive for gold? is there any Modify to work more Sensitivty for it ?

not, in DP any modify is yet impossible. DP is too sensitive device with his 500us PULSE WIDTH max. limit is reached. you can only move PULSE WIDTH to value more than 500us, but you will get problem with stability just cause existing ground back influence effect. if you increase a size of coil you get more depth on big targets but less depth on small targets.
this relation is un-linear.

Posted on: October 22, 2015, 08:28:59 am

standart coil for DP - 1 x 1 meter square coil.

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There are 18 attachment(s) in this post which you can not view or download Please register for viewing them. 1m coil.jpg 2x2_1.JPG 2x2_2.JPG 5.jpg Raskop_s1.jpg koliaj.jpg ramka.jpg ramka1.jpg ramka10.jpg ramka11.jpg ramka2.jpg ramka3.jpg ramka4.jpg ramka5.jpg ramka6.jpg ramka7.jpg ramka8.jpg ramka9.jpg
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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #706 on: October 22, 2015, 03:29:33 pm »

thank you NE555 for your Interest .. i will test all Possibilities to get the best result .

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #707 on: November 16, 2015, 01:16:47 am »

Hi readers
In first excuse me about my bad English

I make delta pulse.but its dept is very low.its dept is about half of the others.
For example with a 60 cm dia coil. 430micro Henry. 2.5ohm
It detect a great place of iron (50cm dial late) in 1meter.
If some body know my problem. Please help me
Thanks

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #708 on: April 06, 2016, 04:26:32 pm »

plese help me What is the beast value resistors R5 and R6 to get a more sensitivity for gold? Is there any solution for it?
my coil is 23 tur - 40 cm

help help .... Cry

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	Re: DELTA PULSE / SNIFFER XR71 PULSE INDUCTION METAL DETECTOR « Reply #709 on: April 09, 2016, 09:18:59 am »

where you had read you have to retune R5 R6 for 'best gold depth'? from whom? give name. your romantics day dreams?

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