Lrl from Italy

[taxma1981]

this is my lrl ,i use variable capasitor 0-22 pf,i have a strong signal but i dont know what is there

https://www.youtube.com/watch?v=10eh5SoVgMs

[FrancoItaly]

You have a signal only in "pinpoint mode"? In this case I think it is a smaller target, and you can check with a metal detector.

[dream_man]

Hello dear Franco.
Regarding your LRL, I'm sure Abdou is right. According the metrics you mentioned earlier, the L1 length is about 10mm, coil diameter 10mm, and wire diameter 1mm. So with these metrics, the L1 must be around 0.027 micro henry and when we add c10=22pF, the resonance frequency is approximately 200 MegaHertz which is quite far from 100 Megahertz. Something is wrong here.

[WM6]

..... you can check with a metal detector.

All end up with metal detector.

Why not with metal detector from start?

All will be faster, without waste of time on such wanna-be LRL creations.

[taxma1981]

today test the detector in another area, I had small marks at one point, I put detector and banged, very soon we will learn what has thear...

[FrancoItaly]

Hi dream man,

my lrl works well with 3 turns for L1 and 22pF for C10, the resonant frequency is not important, I do not understand what you worry.

Best Regards

[abdou2014]

Mr Dream men, you made false calculates , L1 2 turns length 8 cm wire 1.3 uH. resonance with 22p = 29 MHz.
Mr Franco, you told the resonance is not important , its mean we can locate the targets with these parameter in all countries ?!!!

[taxma1981]

i think the most important of this device is the antenna and the LC circuit

this is my first coin for 1 meter distance and 10 cm depth,am very happy

[abdou2014]

congratulation taxma. is it franco lrl in the video ?, i mean the black box. I saw no exterior antenna, can you show us with a picture please.

[taxma1981]

The antenna is funny but work well, is a cable 10 cm with nose of 24 carat gold, with another antenna not functioned

[taxma1981]

with another antenna i can not calibrate the lrl why?the signal is full and i have problem with the bazzer....

[abdou2014]

10 cm diameter of circle, like Flat spiral pancake Tesla coil , good idea

[taxma1981]

and i use this variable capasitor
2.2-22 pf

[dream_man]

Mr Dream men, you made false calculates , L1 2 turns length 8 cm wire 1.3 uH. resonance with 22p = 29 MHz.

No Mr Abdou. you are quite wrong. first of all it is not 8cm, its 10mm as Franco said.
the second, 2 turns dont give you 1.3 uH at all. Calculate again.

[dream_man]

Hi dream man,

my lrl works well with 3 turns for L1 and 22pF for C10, the resonant frequency is not important, I do not understand what you worry.

Best Regards

Hi Franco. I have no doubt in your work or what you say. just I'm trying to conduct this project and tackle the problems or obstacles if any. dont mind my friend.