nice metal detector schematic

GoldDigger1950

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	Re: nice metal detector schematic « Reply #30 on: December 27, 2009, 07:27:04 pm »

Scratch the corrosion off carefully with an X-Acto blade. Then buff it up with an old toothbrush to get the tiny flakes off. Inspect it carefully and if the corrosion is still there, have a technician replace the tab.

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	Re: nice metal detector schematic « Reply #31 on: December 28, 2009, 10:02:10 am »

Thank You
brian

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	Re: nice metal detector schematic « Reply #32 on: January 03, 2010, 06:38:15 pm »

Dear Cornelius,
I have a pulse star II, I want to make a coil 45 cm dia, can you help me with that, or do yo know any one can help..thank you in advance

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	Re: nice metal detector schematic « Reply #33 on: February 11, 2010, 03:53:21 pm »

thanks

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	Re: nice metal detector schematic « Reply #34 on: February 11, 2010, 04:02:29 pm »

n4nasr . Figuere out how long the wire is on the coil you are using . Use the same length on your larger coil . Cornelius

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	Re: nice metal detector schematic « Reply #35 on: February 11, 2010, 06:31:17 pm »

	Quote:	Posted by Cornelius
Xanvier . . Cornelius

"The orginal"
nice site for learning how it works

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http://engnet.anu.edu.au/DEpeople/Salman.Durrani/_teaching/TA5.pdf

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http://pubs.acs.org

this is garys detector and it has recently been updated ..or he will post update when he are comming home 20 feb

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http://www3.telus.net/chemelec/Projects/Metal-2/Metal-2.htm

i have build 2 of them..gary is also selling it as a kit..pcb and components is in kit
i have re drawed pcb rev 3
and gary has also made update for r15-r16..after i had trouble with it
he was amazed that none had spotted this in schema before i did troubling it

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http:

<a href="http://www.youtube.com/watch?v=BgqJaOgHQpU" target="_blank">http://www.youtube.com/watch?v=BgqJaOgHQpU</a>

	Quote:	Posted by homefire
[url=http://www.tahionic.com/electronics/induction%20metal%20detector/index.html]http://www.tahionic.com/electronics/induction%20metal%20detector/index.html[/url]

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There are 5 attachment(s) in this post which you can not view or download Please register for viewing them. 2ND-4X6.jpg Metal-22-PCBsendes.jpg Metal-Sch.jpg NEW-NEW-SCH(2).jpg gary grunnlæst.jpg
« Last Edit: February 11, 2010, 06:39:11 pm by Tuxnor »	Logged

xavier

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	Re: nice metal detector schematic « Reply #36 on: February 12, 2010, 01:31:21 am »

Hi Tuxnor

Thanks for the updated schematics tell me did you build the single or dual coil version or did you build both of them? If you did can you tell me the difference with them as far as detection is concerned? Also what is the battery consumption like with the single and dual coil?

Regards Xavier

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So many questions so little time

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