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Offline escorpio500Topic starter
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« on: January 23, 2011, 02:17:04 pm »
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How make a DD coil for a pulse Induction detector?. It is necesary 350-400uH in the coil and resistance 2 Ohms. I have coils and there is only two wire, that leave of control unit to Serachcoil.
Coils that I only have two connectors (wires) exit the control unit (detector). Accordinj to their desijners coils values must be 350-400 uH and 2 Ohms. Help me. Thanks.

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Offline Rodrigo
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« Reply #1 on: October 04, 2011, 05:17:21 am »
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hey friend I look for this project for long time! Shocked

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« Reply #2 on: October 04, 2011, 08:12:37 am »
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Here is a cool Article written in association with the TGSL Project that should help.

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TGSLCoil Making.pdf

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Offline Rodrigo
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« Reply #3 on: October 04, 2011, 10:46:26 am »
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Tks alot again friend! see you Grin

Posted on: October 04, 2011, 10:24:25 AM
I'm again! I have a doubt, not intend to mae a coil D to detector PI Gary's pulse2 for example has two outputs for coils and when mae a coil D need 4 connection right? help Embarrassed

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« Reply #4 on: October 04, 2011, 11:18:30 am »
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Objective is to Use the RX to Cancel out the TX.  180 out on Rx will dump part of the Tx Fly back.

How to build is illustrated.

Numbers are not.

As for the connections seperate the old connections on the Rx to Tx.

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« Reply #5 on: October 04, 2011, 11:36:05 am »
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I understand more less! Shocked

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« Reply #6 on: October 04, 2011, 11:47:17 am »
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Keep the Tx coil to the original points.

Put the Rx coil to the Amp input and Original Ground.

Rx coil being 180 out of the Tx coil.

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« Reply #7 on: October 04, 2011, 12:08:43 pm »
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sorry but have a some example in illustration? tks Smiley

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« Reply #8 on: October 04, 2011, 12:55:03 pm »
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Look up the Hammer Head or Garys PI and you can see what is done.

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« Reply #9 on: October 04, 2011, 01:32:46 pm »
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ye I look for this but don't found!! picture


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