How to build a loop for LRL

[Geo]

Hi. Here is the way that i made a loop for my electrostatic detector.

1. We pass the lid from a box of plastic colour 10 krg (it has 30cm diameter).
2. We cut it in the middle, as it appears in the photograph, in order to it is lighter.
3. We wrap the core with 2m wire 0,15mm diameter.

[Geo]

4. We wrap 1 turn from wire 2,5 mm diameter
5. We pass the core through the wire
6. Fix the coil (turn) in the plastic nutshell with hot glue (Max, calm )
7. We connect the FIS and we stick it above in the nutshell
Now its ready



Regards

[peroon]

Simillar to White's TM808 coils!?

[Geo]

Originally Posted by peroon

Simillar to White's TM808 coils!?

As loop yes. But i don't know about TM808 tunrs.

[Max]

Originally Posted by Geo

4. We wrap 1 turn from wire 2,5 mm diameter
5. We pass the core through the wire
6. Fix the coil (turn) in the plastic nutshell with hot glue (Max, calm )
7. We connect the FIS and we stick it above in the nutshell
Now its ready



Regards

Hi,
seems very easy to do... nice work.

Did you have any result with that design ?

I guess this is the kind of coil employed with tape recorder preamp/amplifier stuff... as Esteban described... or do you use something different ?

Kind regards,
Max

[zenit52]

Hi dear Geo,

very nice work for building loop !!!

Please explain more this loop that how it working and share your LRL schematic here and tell us about it's performance ...
I am waiting for your answer...

with best regards... zenit52

[Geo]

Originally Posted by zenit52

Hi dear Geo,

very nice work for building loop !!!

Please explain more this loop that how it working and share your LRL schematic here and tell us about it's performance ...
I am waiting for your answer...

with best regards... zenit52

Hi zenit52.
Advantage of this loop is that it is not so sensitive at erratic signals. I have a electrostatic detector that give me some beeps at some places but i can't understand the exactly point to dig....
If this loop has more gain then maybe the "random" beeps to be continuesly so to have the ability to pin point the coins

Regards

[Esteban]

Yes, is style TM808, closed. As Geo said, is similar to aluminium, except is more ease to make. Yes, with this style no pick many interferences.

Geo, good work!

[Esteban]

Originally Posted by Geo

Hi zenit52.
Advantage of this loop is that it is not so sensitive at erratic signals. I have a electrostatic detector that give me some beeps at some places but i can't understand the exactly point to dig....
If this loop has more gain then maybe the "random" beeps to be continuesly so to have the ability to pin point the coins

Regards

In a place, and only in it place, just beeps 5 times at 4 or 5 meters. I found a 1798 Spanish silver coin. Was with circular loop pistol.

[Geo]

Originally Posted by Max

Hi,
seems very easy to do... nice work.

Did you have any result with that design ?

I guess this is the kind of coil employed with tape recorder preamp/amplifier stuff... as Esteban described... or do you use something different ?

Kind regards,
Max

Hi Max.
I saw it at a post from Esteban with a Aluminium loop. I had not al bar so i made it with the lid of a plastic box and a thin copper wire. It is not for the tape recorder preamplifier because i dont believe at it. Tape preamplifies are NAB preamplifiers so i dont like to play with them. I like every preampl to have straight line frequency responce.
I will use the loop with my electrostatic detector that i told at other thread. It is the PCB5 modificated.

Regards

[Esteban]

Originally Posted by Geo

4. We wrap 1 turn from wire 2,5 mm diameter
5. We pass the core through the wire
6. Fix the coil (turn) in the plastic nutshell with hot glue (Max, calm )
7. We connect the FIS and we stick it above in the nutshell
Now its ready



Regards

For my part, don't worry. Here in hotest lands these glues aren't applicable... Maybe somebody can use in excess without problem!

Regards

[Esteban]

Rigid cable and 1 turn copper foil.

[Geo]

Originally Posted by Esteban

For my part, don't worry. Here in hotest lands these glues aren't applicable... Maybe somebody can use in excess without problem!

Regards

Hi Esteban.

I did not think it. So is this the reason that you always use resin glue???
I use very often hot silicon. Very easy to apply and be cold in few seconds


Regards

[epitopios]

Originally Posted by Geo

4. We wrap 1 turn from wire 2,5 mm diameter
5. We pass the core through the wire
6. Fix the coil (turn) in the plastic nutshell with hot glue (Max, calm )
7. We connect the FIS and we stick it above in the nutshell
Now its ready
Regards

Geo , have a look here :
http://freenet-homepage.de/dl4yhf/vl..._turn_loop.htm
maybe it helps ??
σχεδόν το τελειώνω
friendly epitopios

[Geo]

Ωραιο αλλα μεγαλο για το πιστολι που ηθελα. Ηδη εχω καταργησει και αυτο που εκανα και χρησιμοποιω ενα απλο 20 εκατοστων. Πιθανον να το φερω στη συναντηση.

[epitopios]

Originally Posted by Geo

Ωραιο αλλα μεγαλο για το πιστολι που ηθελα. Ηδη εχω καταργησει και αυτο που εκανα και χρησιμοποιω ενα απλο 20 εκατοστων. Πιθανον να το φερω στη συναντηση.

όχι πιθανόν , επιβάλλεται !!!!!!
friendly epitopios