Free project PDK

[Nicolas]

Hi all

I want to share my project with members of the forum so they can make their PDK and prove

[mustefa ubram]

hi nicolas
very nice project.Congratulations
Do you have a test this circuit?

[Nicolas]

hi nicolas
very nice project.Congratulations
Do you have a test this circuit?

Hi Mustefa

Again yet not. I do not have time to test my projects. and the weather is too cold here.
Soon when it is nice weather I go for the test

[Nicolas]

I put here the view outside of the box with the components.
LCD is an option with another card. you can use a micro ammeter

[king40]

hi nicolas
this is working with 1 antenna???

[taxma1981]

see at the end of the appearance of a metal detector distance yellow, interest

http://www.youtube.com/watch?v=haqr_72NTY4

[Nicolas]

hi nicolas
this is working with 1 antenna???

No my friend. It work with coil like Totem and PDK morgan
Coil diameter 50 to 80 mm
5 to 8 Ohm
wire 0.6 mm
Frequency between 50 to 80Khz
More sensitive for find only Gold or silver


Note: A small modification on the PCB

[king40]

Thanks
It looks good
You can Explain more
How much turn need with which wire
Or how much need for inductance?
And the Last about jumpers in the pcb ( J1.j2.,,,,,)

[Nicolas]

Thanks
It looks good
You can Explain more
How much turn need with which wire
Or how much need for inductance?
And the Last about jumpers in the pcb ( J1.j2.,,,,,)

Hi you can use this for calculate depending on your frequency choice

50Khz - 60 khz or 80 khz or 100 khz
and the capacitor in parallel to coil

around 630 and 830uh following capacitor

http://www.energylabs.com.br/el/calculadora/lccalc

http://chemelec.com/Calculators/C-L-R-F_Calc.htm

http://chemelec.com/Calculators/Interwire-Coil-Capacitance-Calc.htm

About the jumpers in Pcb look the scheme you understand that

sample for supply, for led , for speaker ..etc

[iron1944]

Mr. Nicolas.
Alanson circuit pd belongs to you.
LCD?
FREQUENCY?
RESET?
SENS?
Signal?
How the inputs and outputs to connect to which pin tips?
If you help to make the circuit assembly is very yadımc
can be.
Thank you.

[Nicolas]

Mr. Nicolas.
Alanson circuit pd belongs to you.
LCD?
FREQUENCY?
RESET?
SENS?
Signal?
How the inputs and outputs to connect to which pin tips?
If you help to make the circuit assembly is very yadımc
can be.
Thank you.

Hi dear Iron the LCD and reset is an Optional part

I not have designed in this PDK free but you can use micrometer or frequency meter or other

sens is on scheme it's Pot = RV2 and Led signal LED 2= Target. LED 1 is Low battery

[Sneshko]

No my friend. It work with coil like Totem and PDK morgan
Coil diameter 50 to 80 mm
5 to 8 Ohm
wire 0.6 mm
Frequency between 50 to 80Khz
More sensitive for find only Gold or silver


Note: A small modification on the PCB

Dear Nicolas!
Thank you for your project PDK A13!
You are selfless man!
Please answer me why you are a bit modified PCB from PDK A13?
Thank you in advance for your answer!
Regards!
Sneshko

[Nicolas]

Dear Nicolas!
Thank you for your project PDK A13!
You are selfless man!
Please answer me why you are a bit modified PCB from PDK A13?
Thank you in advance for your answer!
Regards!
Sneshko

Hi my dear
I cant Understand what mean bu this?

You are selfless man!

Please answer me why you are a bit modified PCB from PDK A13?

I made this change because of problems of small tracks and vias
I saw that is difficult for you to do.
but not a problem for me because I work on a same type of box. I build the proper way to my dimenssions congestion.

but for you. You can choose any box. so you can change your PCB following the diagram.
most imortant in the project is the scheme not the electronic card.

[Sneshko]

Hi my dear
I cant Understand what mean bu this?
I made this change because of problems of small tracks and vias
I saw that is difficult for you to do.
but not a problem for me because I work on a same type of box. I build the proper way to my dimenssions congestion.

but for you. You can choose any box. so you can change your PCB following the diagram.
most imortant in the project is the scheme not the electronic card.

Hi Nicolas!
You are selfless man! = You are a good man!
Thank for your answer!
All the best!
Regards!
Sneshko

[Nicolas]

Hi Nicolas!
You are selfless man! = You are a good man!
Thank for your answer!
All the best!
Regards!
Sneshko

Thank you too you are altruist