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Offline fffTopic starter
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« on: January 13, 2011, 01:14:49 am »
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 Easily made at home.Very good work.

Posted on: January 13, 2011, 12:22:53 AM
Small error in schematic.R24=R26=10k Sorry.

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Offline hesamavr
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« Reply #1 on: January 13, 2011, 03:58:16 am »
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Could you mention detection range of this design?

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Offline fffTopic starter
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« Reply #2 on: January 13, 2011, 07:19:33 am »
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Depends on the size of the target, metal type and size of the search coil.

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« Reply #3 on: January 13, 2011, 11:34:13 am »
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Hi fff

Do you have that schematic in a PDF format it would be better for us to download.

Regards Xavier

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So many questions so little time
Offline GoldDigger1950
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« Reply #4 on: January 13, 2011, 04:40:40 pm »
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Quote:Posted by fff
Depends on the size of the target, metal type and size of the search coil.

Perfect answer. I'm getting a bit sick of answering this question though.

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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.
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Offline fffTopic starter
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« Reply #5 on: January 14, 2011, 12:37:25 am »
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 Schematic PDF format.

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« Reply #6 on: January 14, 2011, 03:13:20 am »
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Thanks fff

I was looking at the schematic at R19 (100K) is it a trim pot or a pot? and what is it's purpose? also do you have the coil specs for it?

All the best
Xavier
 

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So many questions so little time
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« Reply #7 on: January 14, 2011, 03:26:24 am »
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 R-19-trimmer for single set of output op1 = +1.5v.Coils are standard from to PI detectors.5sm diam. -2х2 meters.

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Offline xavier
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« Reply #8 on: January 14, 2011, 03:37:04 am »
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Thanks for the prompt reply. I take it that it will not work with smaller coils of 300mm diameter

Regards Xavier

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Offline hesamavr
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« Reply #9 on: January 14, 2011, 08:13:53 am »
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Quote:Posted by fff
Depends on the size of the target, metal type and size of the search coil.


Please mention its detection range for several tested metals and coils, if you have. thanks

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