T2 Metal Detector using S.E.F. Coil

[patricia]

Hi Has anyone used the new Coil known as S.E.F. Coil (Symetrical Electromagnetic Coils) on T2.Metal Detector.
These coils have been available for approx 1/2 Years for other machines, at first Minelabs, the manufacturers have slowly added
other machines over time The manufacturer is based in Bulgaria
Coils are expensive approx (

 

[thompy]

ive heard mixed results on the sef on other machines, like you mentioned lots of money

 

[fieldboy]

n/t

 

[patricia]

Hello Thumpy

Thanks for your comments re S.E.F. Coil. I would be pleased to hear from any one who has used these coils. They do not come cheap, so I am waiting for feed back
befor buying one.

Thanks
Patricia.

 

[Ed in SoDak]

Well, Patricia, somebody's gotta be the first to buy one! And you're a lot closer to Bulgaria than I am!

I can offer a "no-cost" tip that you can try to extend detection range with the stock T2 coil. Just hunt using pinpoint mode. Flip the trigger to pinpoint and hold it there while scanning broad areas. I've found my T2 to be sensitive to coins 2 feet away (.6m) horizontally. Depth is extended also, but I can't quantify the maximum as of yet. Where I did my testing at a woodchipped playground, the chips are only 12 inches deep and then you hit asphalt.

The technique works great for sparse-target sites. Since depth is constantly updated, you can use that to guide your search. We have a mindset to only use pinpoint just prior to digging. If you follow the manual, you reduce pinpoint's sensitivity to narrow the response. I've always been a bit contrarian in my approach to things. Once in a while, it pays off!

In the R6 version of the T2, you can adjust pinpoint sensitivity. Crank it up, instead of down. Use that to your advantage to broaden the swath the coil takes in.

As to aftermarket coils, it's hard to say. I don't think there's enough market time with the units you're asking about. There's just way too many variables between individal machines (even of the same make and model), soil conditions, hunting styles, random luck/karma/price of copper, etc., to know for yourself without personal experience at your specific locales. Once enough people have tried a random sampling of the product at random locations, a pattern might emerge.

A detector coil is just a hank or three of wire, some shielding, a capacitor or two and a trimmer to fine-tune it before sealing it up in a housing. I guess you could also say a Stradivarius violin is merely some wood, cat gut and ivory. What I guess I'm saying is anyone can string a wire, but does it sound good when it's played? The Teknetics design crew has faced several challenges in bringing their coils to market. Can a relatively unknown company just seemingly "port over" their design that obviously originated with some other machine as it's heart? Sure, anything's possible! But, like you, I'll wait for someone else to be the "Me first!" guy.

-Ed

 

[patricia]

Hi Ed

Thanks for your comments re S.E.F. Coil. I know many people who have used the coil on many different machines some rave about it, but as you say it could be all hype.
Therefore I am going to do as you suggested, hang on and play for time. The important information that I have picked up is it is very heavy on the end of the shaft, some have discribed it as like having a sack of potatoes on the end of the shaft. I also thought you did put a lot of effort into your reply.

Thanks
Patricia.

 

[OzarkTom]

I did see someone review the coil with a Fisher F75. I will try and find it. He said it was definitely not worth the money, actually made the detector less stable.

 

[patricia]

Hello Ozark

Thanks for your reply re S.E.F. coil for the T2. I have also read the comments re the result of fitting to a F75. I am going to pass on this coil.
in the meantime. I think I will stay with the coil that came with the T2. We are all so easily caught by the HYPE.
Thanks
Patricia

 

[coenwolf]

i had one of them for my dfx a 15x12 ,it was a load of rubbish ,heavy and not worth the money it went on e/bay very quickly indeed

 

[coenwolf]

will try that pinpoint hunting idea next time i'm out ,cheers

 

[Ed in SoDak]

will try that pinpoint hunting idea next time i'm out ,cheers

It's worth a try and as I say, the price is right! It probably won't work too well if there's numerous targets, but if you're having trouble raising a signal, it's something to keep in the bag of tricks. I was getting skunked at the local schoolyard. While pinpointing one signal, I noticed it also beeping on something that turned out to be way off to the side. After that, I played around with it. You can apparently scan a huge area quickly and home in on the signal, then go back to normal detecting mode and get your ID, etc. I presume it would go as deep as it does wide, but that's yet to be checked by me, and I've never heard of anyone else stimbling onto this technique.

-Ed