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Offline Cornelius
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« Reply #190 on: February 17, 2010, 10:49:27 am »
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Ram . A PI detector is also good for coins  .  It is all up to the size of the coil . You may use a coil with a diameter of 100 mm  and go even down to a pinpointer using a ferrite rod to make your coil .  Cornelius

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Offline ram
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« Reply #191 on: February 17, 2010, 10:58:02 am »
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very big thanks to you cornilius ,i will try to build small coil and exact frequency for it. pls give me an idea for small coil and frequency to transmitter. also if it is okey to you i also want to build your dbp 2010 pi coz i'm hesitant to build those copy cat and modified dbp 2010. i want your design w/c is known 100 percent working. thanks in advance to you cornilius. my email add: flashmobile1@yahoo.com

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Offline hesamavr
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« Reply #192 on: February 17, 2010, 12:27:44 pm »
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Dear Cornilius

Could you mention your reached depth with Delta Pulse for coins?

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« Last Edit: February 17, 2010, 12:31:50 pm by hesamavr »
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Offline Tuxnor
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« Reply #193 on: February 17, 2010, 02:01:12 pm »
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This guy can made Good pcb`s ..he made my singelside..and i will have him to make my dualside as well
he speak english and i belive he will ship worldwide since it fit in a letter
his site also have english button for translating his site

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http://rfelektronik.se/


Naa he could not make me a dualside pcb...and he need hi resulution and in gif format if not gerber
so i am still looking for somone to make me a good dualside pcb for deltapulse..

i might take up my own pcb making again,,,havent done that since 1989,,and i have no laser toner printer either..
at that time i draw them with a marker on coppar.. at school .
i found this site and have sendt them a incury for making me several dualsidepcb..for deltapulse

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http://www.alibaba.com/product-gs/268812938/PCB_making.html

 
 its a englishman or german who have the company there..i see on profile for company, they are taking singel orders to

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« Last Edit: February 17, 2010, 02:03:13 pm by Tuxnor »
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Offline hasan
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« Reply #194 on: February 17, 2010, 02:19:31 pm »
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Hi. I reach to 3 meters depth with a metal box 50*30*30 .

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Offline Tuxnor
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« Reply #195 on: February 17, 2010, 02:24:55 pm »
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Quote:Posted by hasan
Hi. I reach to 3 meters depth with a metal box 50*30*30 .


NICE..here its snow and cold frozen ground..so i have not made final test with a bigger coil Smiley

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« Reply #196 on: February 17, 2010, 02:36:47 pm »
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Hi . I use a 10 meters cable 4*0.75 two turns . goodluck
Hi . I made it I used it in a snow grund and got a good ersult.

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Offline Tuxnor
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« Reply #197 on: February 19, 2010, 12:41:11 pm »
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Quote:Posted by hasan
Hi . I use a 10 meters cable 4*0.75 two turns . goodluck
Hi . I made it I used it in a snow grund and got a good ersult.


Great Smiley can you post a picture of your coil  , i understand 10m ,2 turn ,0.75mm but 4*? 4 leaders in cable ?
Is there a gerberfile for the Delta Pulse dualside pcb Huh?
,,none will make me that pcb without a gerber format file.... Coffee
h?lp please ..anyone have or know?? please
Thanks for any help...

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« Last Edit: February 19, 2010, 12:48:04 pm by Tuxnor »
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Offline raff33
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« Reply #198 on: February 19, 2010, 06:07:38 pm »
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hi,today i finish my delta pulse but contuned sound and C 10000uf 16v is burn  Shocked
can any one guide me.....thanks

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Offline ram
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« Reply #199 on: February 19, 2010, 06:24:46 pm »
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maybe inverted cap polarity in 10000uf/16v or excessive voltage.

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