What did you find with a lrl

[abdou2014]

Hi , is it necessary to put the led in a black tube ?

[Jeg]

is it not the one we use in the fire detector ?

https://www.ebay.com/itm/Flame-Senso...-/173342113403

Hi abdou2014
What is your opinion on this module? Is it sensitive enough to detect IR emissions from metals? Or it is better to build one from scratch like Morgan did?





Thanks in advance

[abdou2014]

I was wrong about everything, I have all changed, the led and the circuit

[Jeg]

Thanks Abdou! Very interesting technique anyway. With some short of demodulation it might catches those fields from longer distances than few meters.

[Geo]

Here is another find from a Serbian friend.
It is a silver ancient Greek ring. He found it with Alonso's PD clone.

[Geo]

another Roman coin from the Serbian friend Bojan.
If the phenomenon is strong then the PD makes good "job"....

[JHERICKU]

Hello Geo,I am happy that u are showing result of lrl..Can u advice us newbies an effective electronic lrl?I am using spring dowsing rod but I am planing to connect in a signal generator or to make an electronic lrl..which one can u advice?
REGARDS..

[kostas87]

Εύελπις( Ευέλπιστός )εστιν εικότως,
Ως κλήρον έξει τον Θεόν τμηθείς κάραν.

Τhe ring is just wonderful!

[Mike(Mont)]

Hello Geo,I am happy that u are showing result of lrl..Can u advice us newbies an effective electronic lrl?I am using spring dowsing rod but I am planing to connect in a signal generator or to make an electronic lrl..which one can u advice?
REGARDS..

You can use a DDS signal generator and hook up one or two L-rods to the output. I've never experienced an electrical shock but I heard somebody did with a somewhat different unit. High humidity or rain might want to wear insulated gloves. Power it with a cheap 5 volt cellphone power pack. Some sofisticated power packs won't work. There thousands similar to this on ebay.

Something like this:https://www.ebay.com/itm/36365378833...MAAOSwRwFfSFJx

[Mike(Mont)]

Here is one I put together a while back. I hand it around my neck. You can put some electrical tape over the copper handles if you are nervous. I hasn't bothered me.

[Mike(Mont)]

n/t

[Mike(Mont)]

Frequencies. These in khz, not mhz!

[Geo]

This system don't works properly.
It can locate objects even with wrong frequences but loses the center.
I believe that the signal from generator excites the operator and not the goal.
10Hz was enouth to move 10..20cm the center from the target...

[Mike(Mont)]

Works best with the box-in method. Yeah, these are old frequencies but I have used a few of them.

[Mike(Mont)]

Or you can pound two brass rods into the ground 20 cm or so deep 2-5 cm apart and hook the signal generator up to them then wait five minutes and circle it (at a distance of 3 m minimum) with your L-rods or spring rod. When you get a rod response put a mark on the ground. Then move the generator over 10 - 20 m and repeat. Where the two lines intersect is your suspected target area.