Lrl from Italy

[FrancoItaly]

Hi liudengyuand,

On one side of PCB you must solder all the components and the other side must be completely covered by copper and it is connected to Ground.

Best Regards

[liudengyuand]

FrancoItaly，thank you

[payam20]

here my pcb files
its 2bl side ( one side as franco said ground )
i put each component where to have the least effect to other one . becuase of its ground it have to much low noise .
what do you think dear franco . need any changes ??
sry for my english Untitled.jpg

[pigeon]

hi

thank you very much.nice job

[liudengyuand]

payam20，Hello, your PCB is positive and negative are copper? Or only the reverse side of copper? Please answer, thank you

[zakari]

hi payam20

my friend improve these items

1-out put of reg7812 connected the ground !!!!

2-connecte r=330r series with r=6.8k out put of collector tr2

3-improve out put collector tr5

[payam20]

Originally Posted by zakari

hi payam20

my friend improve these items

1-out put of reg7812 connected the ground !!!!

2-connecte r=330r series with r=6.8k out put of collector tr2

3-improve out put collector tr5

thank you
i will correct it
but i didnt understand what you mean by: improve out put collector tr5
and for number 2 . it make no differences as i have tested too . but i will do it as it is

[payam20]

Originally Posted by liudengyuand

payam20，Hello, your PCB is positive and negative are copper? Or only the reverse side of copper? Please answer, thank you

one side as franco said completely ground .and other side have ground zone too .

[zakari]

hi payam20

how are you?

if your pcb is according franco' schematic you have to put all components in schematic

if you have changed schematic or pcb you must declare here

[payam20]

Originally Posted by zakari

hi payam20

how are you?

if your pcb is according franco' schematic you have to put all components in schematic

if you have changed schematic or pcb you must declare here

yes you are right . i put it right now as schematic.
check it again plz maybe i have forgotten s.th

[payam20]

problme solved
here you are
!Untitled.jpg

[payam20]

Originally Posted by pigeon

hi

thank you very much.nice job

your wellcome

[pigeon]

Originally Posted by payam20

your wellcome

[liudengyuand]

Someone made the experiment effect? Do you have any response on metals？

[mokkethon80]

Hye Guy is this work or not ,,,please show to me schema and how to Made ,thx

[FrancoItaly]

Hi mokkethon80,

Here I repost original schematic e sensor stage PCB.

Best regards

[mokkethon80]

thnk franco..are hav your schema show to me i try made the best when i can.

[sakher]

Hello
i have finish build the device.
it is work with three leds but without sound ( only noise)!! and it is not response to tv or spark .
it is only response to mobile signal .
what is the value of buzzer12v ohm?
when i sure that my lrl is ready to work very good? i mean what is the best experiments
(without buried goal) ?

sorry for alot of questions

[liudengyuand]

Yes, I also made it, the circuit work very well, but did not find it to respond to a long buried metal, I need to confirm whether LRL really useful? Because many people do not have successfully detect the metal

[mokkethon80]

hllo sekhar can u show to me the picture your pcb and all component please n thx

[liudengyuand]

Everybody is good! I succeeded, about 10 meters from the distance, I found a few pieces of silver, its depth in 1.2 meters

[pigeon]

Originally Posted by liudengyuand

Everybody is good! I succeeded, about 10 meters from the distance, I found a few pieces of silver, its depth in 1.2 meters

nice job

[darkman]

Originally Posted by liudengyuand

Everybody is good! I succeeded, about 10 meters from the distance, I found a few pieces of silver, its depth in 1.2 meters

hi there
did u change any thing in the circuit like L1 or C10 , C13 , C14 ?
and what Type of antenna did you Used ?
regards ;

[ouiarabe]

HI
I congratulate you on this good result
liudengyuand
And let me ask you about the PCB that you have realized
thank you

[liudengyuand]

My English is not good, I can't upload pictures, if you are interested, we can email communication together