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**homefire** · 05-01-2017, 09:59 PM

Came across that one a while back and stuck it in my Collection. Not seen any other info yet.

**Watanabe** · 05-01-2017, 11:30 PM

Yes, I made this circuit.
It works great on the beach.
A very good circuit, it is very successful here in Brazil.
One day, on the beach, a wave knocked me down and wet the whole circuit.
It did not work anymore and I quit.
Then I made the SURF-PI.
My vídeo: https://www.youtube.com/watch?v=6ftcYbugpUM

**Watanabe** · 05-01-2017, 11:42 PM

**6666** · 05-01-2017, 11:46 PM

Originally posted by Watanabe View Post

Yes, I made this circuit.
It works great on the beach.
A very good circuit, it is very successful here in Brazil.
One day, on the beach, a wave knocked me down and wet the whole circuit.
It did not work anymore and I quit.
Then I made the SURF-PI.
My vídeo: https://www.youtube.com/watch?v=6ftcYbugpUM

Because it has no earth field cancellation
What happens when you swing the coil from side to side in the air when you are detecting ?
does it beep at the end of each swing ?

**6666** · 05-02-2017, 01:11 AM

Basicly the Polish PI is a modernised version of the 1979 Sandbanks.

Geotech - Technology for Treasure Hunting

http://www.geotech1.com/cgi-bin/pages/common/index.pl?page=metdet&file=projects/sandbanks/index.dat

**Hammerhead** · 05-02-2017, 04:21 AM

https://www.youtube.com/watch?v=HsbIwzCy0wc&list=PLzW2eO5JMmjY-LLrQwz_Tv4W5rvgtEEkW&index=1

**kt315** · 05-02-2017, 09:10 AM

i have a board for sale. 12 euro to your kitchen. DVD with archive i will send free.

**Hammerhead** · 05-02-2017, 09:16 AM

Originally posted by BKY1337 View Post

Hello , i found this informations about the Pi Polish.
It looks pretty good, very easy and maybe about the same depht as the Surf Pi/Baracuda

http://www.lucaslab.grandhost.pl/lucaslab/wykrywacz_PI.htm

[ATTACH]39649[/ATTACH][ATTACH]39650[/ATTACH][ATTACH]39651[/ATTACH][ATTACH]39652[/ATTACH][ATTACH]39653[/ATTACH][ATTACH]39654[/ATTACH]

http://blog.novaeletronica.com.br/en/pi-polones-construa-seu-detector-de-metal/

Is anybody here , who made this Pi? Has anybody additional stuff?

I have tried to build before and have failed

Attached Files

**Watanabe** · 05-02-2017, 04:43 PM

"Because it has no earth field cancellation
What happens when you swing the coil from side to side in the air when you are detecting ?
does it beep at the end of each swing ?"

I think it's because the video was not set (adjustment) correctly.
But it works very well and gives no false signal.
It was possible to regulate until it was totally silent and only gave a signal when there really was a target.

I think it's a very good circuit.
But now I no longer have ... fell into the sea, rusted everything ...

...

**6666** · 05-03-2017, 12:11 AM

Originally posted by Watanabe View Post

"Because it has no earth field cancellation
What happens when you swing the coil from side to side in the air when you are detecting ?
does it beep at the end of each swing ?"

I think it's because the video was not set (adjustment) correctly.
But it works very well and gives no false signal.
It was possible to regulate until it was totally silent and only gave a signal when there really was a target.

I think it's a very good circuit.
But now I no longer have ... fell into the sea, rusted everything ...

...

Hi Watanabe, thanks for the answer, thats interesting that the circuit does not give false beep at the end of a coil swing
its a shame that you fell into the sea.
I have a lucas lab PCB that I am pretty sure I bought from Silverdog, maybe if there is enough interest he might do a short run of PCB's ?

**Watanabe** · 05-03-2017, 02:07 AM

Originally posted by 6666 View Post

Hi Watanabe, thanks for the answer, thats interesting that the circuit does not give false beep at the end of a coil swing
its a shame that you fell into the sea.
I have a lucas lab PCB that I am pretty sure I bought from Silverdog, maybe if there is enough interest he might do a short run of PCB's ?

pdf from lucaslab

If I had the GERBER files, I would have it done in China.
I recently send at PCBway (https://www.pcbway.com/hh) to make the BARRACUDA GEOTECH PCB.
It took 22 days to get here in Brazil and the quality is excellent.
Now I do not have time to do this, but if you really interested, I think it's worth a lot.

...

**6666** · 05-03-2017, 03:06 AM

Originally posted by Watanabe View Post

pdf from lucaslab

If I had the GERBER files, I would have it done in China.
I recently send at PCBway (https://www.pcbway.com/hh) to make the BARRACUDA GEOTECH PCB.
It took 22 days to get here in Brazil and the quality is excellent.
Now I do not have time to do this, but if you really interested, I think it's worth a lot.
[ATTACH]39667[/ATTACH]

...

Good work thanks.