Omega and Super D

[Koala]

Not much activity in the coil section.

Saw these a while go.

Is the old fashioned omega worth the effort. Guess the super DD will not be worth the effort or weight in the UK with the amount of iron in our fields.

https://translate.googleusercontent....Fi37g9_DjgpsVg

[Nandor]

Sadly not much activity at all.
These projects look very interesting. I bet no one here on the forum had ever made a Super D coil. I saw Omega style coils, Ivconic said that it did not performed as well as a DD with the TGSL. How they make the omega shape, it's a bended circle?

[green]

Sadly not much activity at all.
These projects look very interesting. I bet no one here on the forum had ever made a Super D coil. I saw Omega style coils, Ivconic said that it did not performed as well as a DD with the TGSL. How they make the omega shape, it's a bended circle?

I tried to make one for a PI detector awhile back. http://www.geotech1.com/forums/showt...352#post204352

[Koala]

How they make the omega shape, it's a bended circle?

Normally wound on a board with the shape mapped out in nails.

[Nandor]

Have you tried with a VLF machine Mr Green?
Maybe someday I will try to make an omega coil, I need a smaller coil for my TGSL currently I'm using a 10.5 inch coil and it works just perfect but there are many trashy areas here, and those require a smaller coil for better separation. I don't worry about depth's if it has to be mine than I will find it !

[green]

[Have you tried with a VLF machine Mr Green?]

No, the PI is all I have.

[Koala]

I have for a long time preferred a concentric to a DD

Better pinpointing and less pop and cracks over iron.


I would like to know how the omega and concentric stack up against each other.


Found this while searching. Old news. But nice to remember that the common images on the nets aren't strictly true.

http://www.fisherlab.com/hobby/davej...eApril2012.pdf

[Nandor]

I prefer DD it's easier to make in a "home lab". I think concentric is a bit complicated. I made my machines without a scope and the DD works good but when I tried CC it was a bit off-phase. DD is fine.

[Tibuck19]

I prefer DD it's easier to make in a "home lab". I think concentric is a bit complicated. I made my machines without a scope and the DD works good but when I tried CC it was a bit off-phase. DD is fine.

I am presently attempting to make a concentric coil for the MMP , and its a pain in the butt to make, im having little to poor results So far but im stubborn lol I'll eventually get it but truth be known , im thinking of putting it aside for a while to make a DD lol just for a moral boost of getting something other then a mono coil to work well. Any suggestions for DD as u had already made some? How much uH do you make the TX and how much more do you give the RX ?

[Koala]

http://www.minelab.com/usa/go-minela...tect-30-deeper


Does the data appear right in the second graph.

Especially at each end

50% bigger nugget seen @ less depth ?

More interesting is the small target still seen deeper with the larger coil. I that because the two Rx windings are acting as two smaller coils ?

[Koala]

http://golddetecting.4umer.net/t2440...don-t-think-so