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Offline mz6466Topic starter
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« on: January 03, 2010, 01:02:06 pm »
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hi to all
happy new year Kiss Waveing
i build anker50 but i have not coils.please help me about L1 -L2-L3
.vlf metal detector have 2 coil.but this circuit have 3 coil.what is L3?Huh??
PLEASE HELP ME THAT WHAT BUILD THIS COILS.
BEST WISH

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http://md04.narod.ru/An50/Anker50.GIF

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Offline inl
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« Reply #1 on: April 03, 2015, 01:45:06 pm »
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cine poate sa spuna cum se construiesc bobinele/coils/ multumesc.

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Offline GoldDigger1950
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« Reply #2 on: April 03, 2015, 01:47:59 pm »
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Quote:Posted by inl
cine poate sa spuna cum se construiesc bobinele/coils/ multumesc.
This is an English only forum.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!
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« Reply #3 on: April 03, 2015, 02:15:57 pm »
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•   The diameter of the sensor - 25cm
•   Sensor type - coaxial-planar (Spider)


pictre only example:

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« Last Edit: April 03, 2015, 02:17:44 pm by cool2010 » 		Logged
Offline xavier
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« Reply #4 on: April 03, 2015, 02:52:02 pm »
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Quote:Posted by mz6466

hi to all
happy new year Kiss Waveing
i build anker50 but i have not coils.please help me about L1 -L2-L3
.vlf metal detector have 2 coil.but this circuit have 3 coil.what is L3?Huh??
PLEASE HELP ME THAT WHAT BUILD THIS COILS.
BEST WISH

If a coplanar coil is used you need the TX coil the RX coil and the bucking coil (look it up on the net) you can make a DD coil or a pinpoint coil instead though as they are much simpler for the beginner.
 

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So many questions so little time
Offline cool2010
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« Reply #5 on: April 03, 2015, 03:02:20 pm »
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United consistently reception and compensating coil together with the capacitor C11 form a circuit. precisely tuned to resonance with the generator circuit. On the DA13 made buffer stage, neutralizing the effect of interference in the cable that connects the sensor to the electronic unit.


and for coil information try here..

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« Reply #6 on: April 04, 2015, 11:07:40 am »
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I need to know how the coils are made - dimensions, balancing

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« Reply #7 on: April 04, 2015, 11:18:20 am »
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Look it up on the net mate, there is all the info that you need on coils and more. If your schematic dose not tell you how to make the coil ie the inductance and the coil dimension non of us can help you, it's going to be a hit and miss I'm afraid.

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Offline inl
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« Reply #8 on: April 11, 2015, 01:09:11 am »
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Quote:Posted by cool2010
•   The diameter of the sensor - 25cm
•   Sensor type - coaxial-planar (Spider)


pictre only example:


please give me the details about hows to calculate the number of turns for the RX coil who has two coils

ex: exterior coil diameter - 25 cm has 80 turns apror 5 khz
I need to know how to calculate the number of turns for the other 2 small coil with small diameter

thank you

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Offline xavier
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« Reply #9 on: April 11, 2015, 03:43:24 am »
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We can't tell you. You need to get this information from the designer, the wire gauge and inductance of the coil is what you need to know and only the designer can tell you that, this is why I said that it will be a hit and miss making a coil for your detector.  It's a bit like if you show me a cake then you ask what are the ingredients in it, get the picture?

Posted on: April 11, 2015, 10:24:17 am
Here is something for you to read

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http://www.seriousdetecting.com/learn/coil-selection-guide/


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