DEEPERS

[WM6]

tercio: not many detector give a strong signal for a coke can at 65cm in the ground .... try with your detector!!!
..

Which of mine detectors? I owned seven factory detectors (most VLFs) and all passed such test (Beer can 0,33L buried at 60 cm) even Chinese TS150. So nothing impressive. Still waiting on coin test.

[Geo]

But who hunt for cola can???? always the same poor mind question....????
the comparative for the aluminum coke can it is because first aluminum response delay is very near to gold .
Second : cola can represent a very few grams of metal...
tercio: not many detector give a strong signal for a coke can at 65cm in the ground .... try with your detector!!!

Ps: coke can in Mexico are in alu , in Europe it is in iron ...

Hahaha my XR71p with 20cm coil don't give any signal at 65 cm, not on the ground but on air
Alexismex you have right


Regards

[Max]

But who hunt for cola can???? always the same poor mind question....????
the comparative for the aluminum coke can it is because first aluminum response delay is very near to gold .
Second : cola can represent a very few grams of metal...
tercio: not many detector give a strong signal for a coke can at 65cm in the ground .... try with your detector!!!

Ps: coke can in Mexico are in alu , in Europe it is in iron ...

no... they are aluminium also here!

I'm drinking 7up right now... it's good aluminium stuff... maybe , one time, it was some B52 fuselage....

Just BS products use iron/steel for beverage stuff.... unless needed (e.g. large containers).

Kind regards,
Max

[Alexismex]

But who hunt for cola can???? always the same poor mind question....????
the comparative for the aluminum coke can it is because first aluminum response delay is very near to gold .
Second : cola can represent a very few grams of metal...
tercio: not many detector give a strong signal for a coke can at 65cm in the ground .... try with your detector!!!

Ps: coke can in Mexico are in alu , in Europe it is in iron ...

[Max]

Thank you Alexismex.

But who hunt for cola can?

Can you give us ground test for coins?

If goes deep with coke cans... it has a good sens, that will mean with smaller targets , like coins, it will go also deeper than others.

The thought is about linear if we consider just small coils like 10'' still it.

With larger coils you'll detect far great stuff, coke can, of course... but will lose grip on small things.

I have made many coils and PIs and know that if MD goes that good on coke cans can't do worse on coins too with that 10'' coil.

The problem of PIs are others... well known already, and discussed here...

E.g. if you're at beach... it's nice having such monsters... but , generally speaking, inland coinshooting is really impossible in most places with that things.

Kind regards,
Max

[WM6]

.. with 10 inch coil.... air test 85cm .... inside ground 70 cm.for a alu-coca-can ....much much better than pulstar.

Thank you Alexismex.

But who hunt for cola can?

Can you give us ground test for coins?

[Geo]

hi Geo i builder one pcb for deepers and work well in manual mode .

http://www.4shared.com/file/124875453/ff2e3451/SN850999.html

http://www.4shared.com/file/12487617.../SN851002.html

Hi Fabio.
Does it work ok at auto mode????
At manual mode does it stable????
Also what about the depth??

Regards

[Geo]

Hello Geo and forum
Geo schematic is 100% ok
and for the discrim it is a simple over voltage detector when you have a big mass of iron red led goes up .... because it is very
very uncommon to have a very big mass of gold or silver ...smart design and i think much smart that the discrimination circuit type lottery of the pulstar
Alexis.

Hi Alexismex.
Thanks for your reply. I am glad that schematic is OK because on winter i am interesting to give it a try. But as i see on simulator, if i will deconnect the Q7 then the U9 works again the same as astable. If so, why they have the Q7??
Regards

[aft_72005]

Hi to all
Discrimination at pi detectors is respective.
Respective to soil condition, detection deep, target size and…..............
Therefore most of them, discrimination correct around 50-70%
Best regards.

[Alexismex]

Hello Geo and forum
Geo schematic is 100% ok
and for the discrim it is a simple over voltage detector when you have a big mass of iron red led goes up .... because it is very
very uncommon to have a very big mass of gold or silver ...smart design and i think much smart that the discrimination circuit type lottery of the pulstar
Alexis.

[fabio]

hi Geo i builder one pcb for deepers and work well in manual mode .

http://www.4shared.com/file/124875453/ff2e3451/SN850999.html

http://www.4shared.com/file/124876175/30059ee3/SN851002.html

[Geo]

Hi.
I checked the oscillator and the pulse delay with a simulator and i found that Q7 can't triger the U9. So U9 gives continue pulses for the audio. But WHY Q7 is connected with pin 2,6 of 555. It is as astable but it must connected as monostable.
Any help for the error???
Does Alexismex can check it??

Regards

[Geo]

Hi. Please who can tell me about the discri led and potentiometer.
As i see the signal is the same who goes at the analog instrument and to the buzzer.
So nothing special signal for ferrous objects. BUT i see that the suply of the transistor for audio out, is from a 555 that it triggered from the transmiting pulses. So maybe there is a delay for the ferrous or no ferrous. Can anyone tell me about what is happening exactly on the 4070???

Regards

[aft_72005]

Hi Alexismex
Manna and Eugene52 requested from you , please upload some pictures
From inside of the box and circuit .
Best regards.

I remember your good pictures from inside of MINEORO PDC210.

[aft_72005]

HiAlexismex
For circuit thank you . can you upload some pictures from inside the box ?
Best regards.

Hi Alexismex
Manna and Eugene52 requested from you , please upload some pictures
From inside of the box and circuit .
Best regards.