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]

Originally Posted by mustefa ubram

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]

Originally Posted by king40

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]

Originally Posted by 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.,,,,,)

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/Inte...tance-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]

Originally Posted by 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.

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]

Originally Posted by Nicolas

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]

Originally Posted by Sneshko

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]

Originally Posted by Nicolas

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]

Originally Posted by Sneshko

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

[Nicolas]

Hi all

If someone want to change the frequency preselected by me which is between 50 and 80 khz

you can use a variable capacitor in parallel with your coil and following your calculation of the inductance of the coil

see here
https://www.google.tn/search?q=capac...w=1388&bih=735

use this website to calculate the values ​​of C and L variable uH
http://www.energylabs.com.br/el/calculadora/lccalc
or this
http://chemelec.com/Calculators/Calculators.htm


FOR JUMPERs

J1-J2 = battery 9V
J4-J5 = LED1
J6-J7 = LED 2
J8-J9 = Sound
J10-J11= Coil Rx

[iron1944]

Mr. Nicolas.
Can you help me?
I amateur with your help himself to the creek behind the microampermet to attach it to the reign of the UIC to what you need?
For example.
J number?
J or B number?
Thank you.

[king40]

Originally Posted by iron1944

Mr. Nicolas.
Can you help me?
I amateur with your help himself to the creek behind the microampermet to attach it to the reign of the UIC to what you need?
For example.
J number?
J or B number?
Thank you.

j means jumper for example J8 and j9 for buzzer

[iron1944]

BUY NİCOLAS.
GREAT MASTERS.
My KOUNOOZ.CO. PDK FORUMS A13 telescopic antenna attached. Says if you takılacak.devr how the telescopic antenna circuit
Some parts of this will vary? Circuit scheme drawing on the show.
Thank you.

Or a plot of land bestowed upon us to use the telescopic antenna attendant complexity, amateur distress rigorous experimentation, there is no cost.

[Nicolas]

Originally Posted by iron1944

BUY NİCOLAS.
GREAT MASTERS.
My KOUNOOZ.CO. PDK FORUMS A13 telescopic antenna attached. Says if you takılacak.devr how the telescopic antenna circuit
Some parts of this will vary? Circuit scheme drawing on the show.
Thank you.

Or a plot of land bestowed upon us to use the telescopic antenna attendant complexity, amateur distress rigorous experimentation, there is no cost.

Hi Iron1944 I cant understand what you mean? your translate is very bad

and if you want stay in our site use only one account please. because come automatic banned.

LOOK HERE THE DETAILS AND LOOK ALSO THE SCHEME FOR UNDERSTAND

[reza vir]

Thanks nico very god project

[iron1944]

DEAR NİOCOLAS.
GREAT MASTERS
Thank you very much for your help.

[king40]

hi dear nic
if you create a loop for your free pd please take a pic of loop
thanks

[Nicolas]

Originally Posted by king40

hi dear nic
if you create a loop for your free pd please take a pic of loop
thanks

Hi dear not again

It's sample my friend need to calculate your frequency with the parallel capacitor

and make diameter 50 mm with core 0.35 mm

I cant told you what number of turns because that need calcul with LC

maybe L=> 820 milliHenry and 90> turns R => 6 Ohm but not sure check by your self my friend

Look comment #16

http://www.longrangelocators.com/for...6&postcount=16

[Nicolas]

Hi likng look here can Help you

http://users.telenet.be/h-consult/in...n_inductor.htm

For L= 830uH
Capacitor 2n2 >>>> Freq = 115 KHz
Capacitor 10n >>>> Freq = 55 KHZ

You can use Capactor variable 10nF

for frequency between 55 to 155 KHz

and make your calcul and your test