Lrl from Italy

[RS_Phil]

Originally Posted by FrancoItaly

Well, it's ok.

Do you have update on your newly circuit my friend FrancoItaly, I mean a PCB?

[FrancoItaly]

Originally Posted by RS_Phil

Do you have update on your newly circuit my friend FrancoItaly, I mean a PCB?

No you have to change the original one or add a small pcb.

[erfan]

Hello franco Italy.
I put sample of L1 and L2 in your antenna adapter for example. I want to know if you mean antenna adapter like this.(Attached picture 3)
1.There is L1=3 TURNS inside which is connected to earth in one side and connected to C10 and capacitor 100pf in other side.
2.There is L2=2 TURNS outside which is connected to earth in one side and connected to antenna in other side.
Do you confirm all these?

[FrancoItaly]

Originally Posted by erfan

Hello franco Italy.
I put sample of L1 and L2 in your antenna adapter for example. I want to know if you mean antenna adapter like this.(Attached picture 3)
1.There is L1=3 TURNS inside which is connected to earth in one side and connected to C10 and capacitor 100pf in other side.
2.There is L2=2 TURNS outside which is connected to earth in one side and connected to antenna in other side.
Do you confirm all these?

yes, I confirm. I recommend making this change (and the amplifier antenna) only after having developed the sensor stage in the original version.

[edward]

Originally Posted by FrancoItaly

yes, I confirm. I recommend making this change (and the amplifier antenna) only after having developed the sensor stage in the original version.

Hi mr franco

I completed the lrl

I was wrong the pcb was not self oscillation the battry was corrupt

With the switching power supply your lrl pcb is self oscillation because in the switching is a potentiometer between vcc and gnd for setting the voltage this causes passing a little current

This is a really perfect treasure detector i dont tested it on my test area yet but i tested it on a really ancient site and this reacted to the main point with very high sensivity in all directions that my last buildings from this version didnt had any reaction

Thank you for every thing mr franco

Regards

[teo]

For all of you Franco when you say in the original version I was not aware of it

[FrancoItaly]

Originally Posted by teo

For all of you Franco when you say in the original version I was not aware of it

I post here my original lrl.

[teo]

thanks franco

[abdou2014]

https://ibb.co/ckb8768

https://ibb.co/WDFgrg4

is this winding method is right Mr Franco ?

[FrancoItaly]

Originally Posted by abdou2014

https://ibb.co/ckb8768

https://ibb.co/WDFgrg4

is this winding method is right Mr Franco ?

Yes.

[abdou2014]

Thank you

[FrancoItaly]

Originally Posted by walkman

Dear Franco

Would I use the metal case Bc108 instead of the Bc183C?

Yes, no problem.

[darkman]

hi guys miss you all >>

[abdou2014]

Thank you friend

[Arash]

hi All
I assembled this pcb and tested it
I TAKE RESULTS TO SENSE METAL

[abdou2014]

can you share Layout file ?

[darkman]

hi all :


Mr franco , abdu bro hope you are OK


what did you think of this Edition of your lrl ?



https://drive.google.com/drive/folde...VE?usp=sharing




thx

[abdou2014]

Nice job, I hope it will work

[FrancoItaly]

I just got home, I think your project is valid, the important thing is that it works.

[Geo]

Hello Franco.
Long time......
How are you ???

My wishes

[FrancoItaly]

Originally Posted by Geo

Hello Franco.
Long time......
How are you ???

My wishes

Hi Geo,
I'm well and you? Unfortunately I am a long time away from home and from my laboratory and also from the research fields ... I hope you are luckier.

[Geo]

Oh yes, i am home with laborator at underground.
I have one month yet before begin the works at farm.
Yesterday i took a Xtal version to see (for another time) how it works and catch the phenomeno, or how phenomenon aplied at input circuit....
I connected the scope at collector of Tr2 (mixer) and gave signal with generator (via a small wire as antenna) at input. Without input signal i had a signal of 8Mhz at Tr2 but with input signal 120Mhz i had signal about 1Khz. Why???? where are the other frequences of mixer?? (120+ 8Mhz or 120-8Mhz or the same for harmonics)????
It works as to exist a LF filter at out of mixer. Any idea???

Regards

[FrancoItaly]

Originally Posted by Geo

Oh yes, i am home with laborator at underground.
I have one month yet before begin the works at farm.
Yesterday i took a Xtal version to see (for another time) how it works and catch the phenomeno, or how phenomenon aplied at input circuit....
I connected the scope at collector of Tr2 (mixer) and gave signal with generator (via a small wire as antenna) at input. Without input signal i had a signal of 8Mhz at Tr2 but with input signal 120Mhz i had signal about 1Khz. Why???? where are the other frequences of mixer?? (120+ 8Mhz or 120-8Mhz or the same for harmonics)????
It works as to exist a LF filter at out of mixer. Any idea???

Regards

I have no idea, but the fact is that TR2 is not really a mixer that is used for frequency conversion, if I remember well in this case the signals must be very large to make TR2 work in a non-linear way, that is to say with distortion . In the case of my lrl signals of very small amplitude are mixed.
Regards

[mc_307]

hello my fiends.,
What's the latest working document on the circuit?
and was it really a friend who could work?

[humhum]

I Think that with Franco Xtal LRL , Lucky frequency can be is with 9.736,305 Mhz .