Lrl from Italy

[FrancoItaly]

Hi mee,

1 - one antenna (or more) is connected to L1/C10, this is the only input.

2- the stylus antenna is better than coil antenna, it's easier to build and by stretching it can increase sensitivity.

3 - In my opinion the original values for L1 / C10 are correct and only later (with LRL working) you can find the best possible values.

my email is "sandokan51@libero.it"

Best Regards

[mee]

Lrl

Hi franco
Tanks of you
I make your both circuit LRL ( original board and with 4046)
But no one worked and not detecting my device is silent except when to rotate
Gain or threshold POT.
I don't know. Why?
What This device worked and how tests device?
Im tested with gold coin but device not actions and led is off.
This device used a transmitter board ?
Best regards
M.E.E

[FrancoItaly]

As I have said many times LRL only works with metals buried for a long time, at least a few months, also depending on soil type. It is therefore necessary to have an area where testing, burying for example of silver and waiting at least a few weeks. My lrl is a passive receiver and the oscillator does not transmit.

[mee]

Lrl

Hi franco
Tanks of you
I think a lrl detector parable pi detector , detected
All metal in air or in ground.
I to understand LRL detector, detectet old metal and only in the ground.
But i seen your video in YouTube , the device detected metal in room
It is different detector?

http://youtu.be/eZUfg2kF4-Y

http://youtu.be/ib72FWjxYTw

http://youtu.be/l3nH9CG0lI8

Best regards
M.E.E

[FrancoItaly]

My LRL (as I think the other lrls) reveals not only the "phenomenon" but every other source that emits signals whose frequency (or even harmonics) falls in the input resonant frequency of the LRL. Such as mobile phones, remote controls, wireless and so on. Even in my house there are several points where the LRL is activated and this I think is the case of the video that you saw. Near radio transmitters, the LRL is virtually no use.

[folharin]

any member could post the 1 led display schematic?

[FrancoItaly]

Best Regards

[folharin]

schematic pcb

[FrancoItaly]

This is not my PC and is not complete, however, the power stage there is only one LED and is connected between R6 and + 12V.

[abdou2014]

I DON'T USE BUZZER .

[folharin]

thank you

[sakher]

Hello
Is This device can detect if the target was inside a box?

[taxma1981]

I think NOW

[mee]

not worked

hi dear franco
my device not worked
emeter TR1 is 8Mhz signal .
baise TR2 is not signal .
and i test diffrent LC tank resonance between 100Khz to 140Mhz but my device not worked
pcb (( pcb file upload here ,with altume designer ))and all parts is ok
so i make device with 4069 pll but not worked.
i dont no
help mee
best regards

[brs]

Hi Franco
Is it possible to amplify this phenomenon transmitter Should separate transmitter receiver

http://store1.up-00.com/2016-11/1478940511511.png