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Offline Wilson
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Delta Pulse stage assemply
« Reply #610 on: July 12, 2011, 02:47:49 pm »
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Ok Japanese, correct the resistors and transistor is the Delta Pulse.
 Thank you.
 Great

Posted on: July 12, 2011, 02:26:20 PM
Tradução do português para inglês
Japanese Hello, a question for you and other forum members, Delta pulse has little sensible for gold, only gold rings and earrings with round shape it is possible to detect the 26cm, other objects of gold with other formats do not round and small size detects 5cm. A can of soda 90cm. 23cm nickel, paint 1 / 4 "detects more than 100cm.
 Use a 32cm coil.
 This occurs with all detectors PI??  Idea
 Thank you.


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Offline Engr Obaid
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« Reply #611 on: July 12, 2011, 02:59:59 pm »
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Dear ,

I also practically noticed that delta pulse md gives very poor response for  gold, also gives fake signals on salty and mineralized  soil even buried ashes.


  I think now we should think about any good VLF Metal Detector on this forum , which is having less deep rang than  any PI Detector, but it has good ability for discrimination between the metals , free from fake signals.

Br,

Engr Obaid

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Offline Wilson
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Delta Pulse stage assemply
« Reply #612 on: July 12, 2011, 03:15:34 pm »
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Engr Obaid Hello, thank you for your response, you could tell me where to mount circuit that can be better at the moment?
 thanks


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Offline Engr Obaid
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« Reply #613 on: July 12, 2011, 03:39:41 pm »
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Dear ,

plz see my Reply (#598 on: June 30, 2011, 01:55:21 PM ») where i have given my delta pulse pics ,  circuit can be easily made by pasting both sides of pcb design (components + lining ) printed paper available on this forum on any doted board,simply placed the components on its correct position and also connect the lines on the other side as like printed on the paper,
i made this circuit in only 4 hours and tested .
very simple to made,
i will send my detector snaps

Best Regards,

Engr Obaid   

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Delta Pulse stage assemply
« Reply #614 on: July 12, 2011, 03:59:24 pm »
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Hello Engr Obaid, this response was sent to me? I build the Delta pulse and is functioning. I use the translator to talk and this causes problems to understand correctly.
 Thank you.
 Shake Hand

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« Reply #615 on: July 12, 2011, 05:45:18 pm »
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Ok Engr Obaid, let's search.
 Thank you. Detecting


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« Reply #616 on: July 13, 2011, 05:45:36 am »
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hi

I want to make a coil with 50cm cable adsl how many rounds I have to do

thank you




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Offline Engr Obaid
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« Reply #617 on: July 13, 2011, 06:53:57 am »
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Dear ,

Use  24 SWG copper wire for Delta pulse coils ,  required 25 to 30 turns  , will give very good result.

BR,

Obaid

Posted on: July 13, 2011, 06:53:30 AM
Dear ,

Use  24 SWG copper wire for Delta pulse coils ,  required 25 to 30 turns  , will give very good result.

BR,

Obaid

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Offline japanese
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« Reply #618 on: July 13, 2011, 07:50:36 am »
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Hi haikel774
                50 cm  0.6 mm   24 turn  2.6 ohm  =adsl cat5  3 turn  (3 x 8 tu=24 tu)
best time
j. 

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Offline xavier
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« Reply #619 on: July 13, 2011, 08:52:31 am »
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Hi Japanese

Can you tell me what is the inductance on that 50 cm coil?

Regards Xavier

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So many questions so little time
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