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Should I buy the 12x15 SEF?
- Thread starter gregliss
- Start date
Yes! I got one for the beach covers so much more ground a swing still picks up the small stuff
and separates like a much smaller coil.
Will hit a coin at 16inch plus on the wet sand
Just wish I had manned up a bit more and gone for the 15x18 throw a swing thing on and you will be fine
Good luck and HH
and separates like a much smaller coil.
Will hit a coin at 16inch plus on the wet sand
Just wish I had manned up a bit more and gone for the 15x18 throw a swing thing on and you will be fine
Good luck and HH
moseng said:
Intent is to use on low trash sites, mainly ovals and parks, maybe at the beach at some point.
I'm happy to hear a little more depth, I have a site where the large majority of coins where found right on the edge of detection depth. If some of the iffy signals come through clear I'll be happy to spend the money.
Last year I took my 15x12 to a park I have hunted a lot with the stock Pro coil. This place quit giving up keepers. I hunted it a few times with the 15x12 sef butterfly coil and found 15 more wheat cents, an 1892 Indian Head cent, an 1896 Barber dime, a 1905 Barber dime and a 1919 Mercury dime. It's a big coil that has excellent separation and, therefore, is great for coinshooting...even though many will say it should only be used for relic hunting. NiagracountyNY hunts coins with the even bigger 18x15 coil. He's done very well with it.
Have one and love it! You can't beat the coverage and for size it sure does separate well. Used it at the beach and it picked up small pierced earrings at depths that most anyone would tell me I'm a liar but it does! Never owned any other large coils that could pick up small targets like it does. It is heavy though and I use a harness with it which makes it swing-able all day long. Mike
I've seen it in action vs. the pro coil. My buddy picked up a colonial era shoe buckle in a plowed field at around 16" measured. When he called me over to check out the find we put the buckle back in the hole. I got no signal at all with the pro coil. The next week I went out and got myself a 12x15 SEF.
Now don't be mistaken - it is heavy - very heavy. The difference in weight is material and noticeable. After detecting with the 12x15 for 2 hours (with my arm and wrist killing me) I switched over to the stock coil - it's such a dramatic difference - it almost felt like the machine's weight was cut in half.
If you get one of them - FWIW - think about adding some sort of harness like a swingy thingy.
Barry
Now don't be mistaken - it is heavy - very heavy. The difference in weight is material and noticeable. After detecting with the 12x15 for 2 hours (with my arm and wrist killing me) I switched over to the stock coil - it's such a dramatic difference - it almost felt like the machine's weight was cut in half.
If you get one of them - FWIW - think about adding some sort of harness like a swingy thingy.
Barry
I had a 15x12 and tested it on multiple occasions and I prefer the stock coil. One day I hunted a 40 x 40 spot with the 15 x 12 and flagged 4 possible deep coin signals at an old fairgrounds then came back with the stock coil and flagged 8 more targets with the pro coil. I went back over these targets with the 15x12 and couldn't get a diggable signal on any of them. Long story short 6 out of the 8 targets that the stock coil liked and the 15x12 didn't turned out to be silver dimes. Bye-Bye 15x12
John
John
silvereagle
Member
ok there is a comparison chart on another site that did side by side comp. of all the sef coils,ok on an explorer which will be almost the same depth as the etrac here are the quarter
penny
5p decimal
coin Crotal bell the first row of #'s is for a quarter penny almost like the lincoln penny copper,the 2nd row is a 5p decimal coin like a silver dime,3rd is a brass bell and these are the results.i hope this helps
Standard slim-line coil 5.5" 8" 13"
12 x 10" S.E.F Detech 6" 9" 15"
15 x 12" S.E.F Detech 5.5" 9" 15.5"
18 x 15" S.E.F Detech 4.5" 8.5" 17"results.
penny
5p decimal
coin Crotal bell the first row of #'s is for a quarter penny almost like the lincoln penny copper,the 2nd row is a 5p decimal coin like a silver dime,3rd is a brass bell and these are the results.i hope this helps
Standard slim-line coil 5.5" 8" 13"
12 x 10" S.E.F Detech 6" 9" 15"
15 x 12" S.E.F Detech 5.5" 9" 15.5"
18 x 15" S.E.F Detech 4.5" 8.5" 17"results.
Smokin_Cache
New member
JohnTN you want to sell your 12X15?
OhioCoinHunter
New member
I hunted a park that has been heavily hunted for decades. With the Pro coil I found 11 wheats, a buffalo nickel and a1900 indian head cent (and a lot of modern coins). I didn't find any silver there. None. 
After I bought the 15x12 sef coil I went back there and hunted the same places. I found 15 more wheats, another indian, a merc and two barber dimes. I like the coil. 
After I bought the 15x12 sef coil I went back there and hunted the same places. I found 15 more wheats, another indian, a merc and two barber dimes. I like the coil. Critterhunter
New member
The less depth than the 12x10 was on a cut quarter penny, which is a TINY piece of silver about half the size of a half dime or less. Any smaller coil will get better depth on something that small, and the 15x12 only had a half inch less depth than the 12x10 on it. 5.5" is pretty darn good for any coil on something that small. Penny/dime sized targets and bigger the 15x12 most people say gets better depth than the 12x10, but both (again, most say) are deeper than the 10" Sovereign coil or the 11" Pro Coil. In fact, with all the digging I've done on the net about this coil most opinions are that it's the deepest large coil they've ever used on coin sized targets, even beating the WOT out.
Compared to the WOT the majority opinion on the 15x12 is that it's more stable, has better separation (almost like a 10" coil), allows higher sensitivity settings, doesn't false as much on iron, is more sensitive to tiny targets, provides better audio harmonics, pinpoints better, and so on. It's a winner. Remove the coil cover and it's lighter than the Tornado 10". I plan to spray bed liner on mine because without the coil cover it drops about 3.6oz and makes it lighter than my 10" Tornado with cover on. From what I've read the 18x15 is past the point of deminishing returns on penny/dime/ring sized targets but still an excellent coil for relic or cache hunting. I wanted the deepest coil on the market for coins/rings, and after several months of research I'm confident the 15x12 is the one.
One other interesting note that I've read alot of remarks about is that people are surprised that they are digging not just deeper coins than they did with other coils, but they are also digging shallow coins that other coils somehow missed. Some of these were either on edge or mixed in with trash. Now, I'm not going to claim that even with it's excellent separation that it's separating trash better than say an 8" coil (some think it's close to a 10" and even a few think better than that), but I've heard many people indicate that maybe the field dynamics of these unique SEF designs are hitting those coins in a different way and so is better at unmasking them than typical DD or even oval & eclipse designs. When you think about it, many of these coins that typical DD designs can unmask have been found, but by all rights there should be a lot of other coins masked or on edge in a certain specific way that the SEF magnetic field has an easier time revealing.
Compared to the WOT the majority opinion on the 15x12 is that it's more stable, has better separation (almost like a 10" coil), allows higher sensitivity settings, doesn't false as much on iron, is more sensitive to tiny targets, provides better audio harmonics, pinpoints better, and so on. It's a winner. Remove the coil cover and it's lighter than the Tornado 10". I plan to spray bed liner on mine because without the coil cover it drops about 3.6oz and makes it lighter than my 10" Tornado with cover on. From what I've read the 18x15 is past the point of deminishing returns on penny/dime/ring sized targets but still an excellent coil for relic or cache hunting. I wanted the deepest coil on the market for coins/rings, and after several months of research I'm confident the 15x12 is the one.
One other interesting note that I've read alot of remarks about is that people are surprised that they are digging not just deeper coins than they did with other coils, but they are also digging shallow coins that other coils somehow missed. Some of these were either on edge or mixed in with trash. Now, I'm not going to claim that even with it's excellent separation that it's separating trash better than say an 8" coil (some think it's close to a 10" and even a few think better than that), but I've heard many people indicate that maybe the field dynamics of these unique SEF designs are hitting those coins in a different way and so is better at unmasking them than typical DD or even oval & eclipse designs. When you think about it, many of these coins that typical DD designs can unmask have been found, but by all rights there should be a lot of other coins masked or on edge in a certain specific way that the SEF magnetic field has an easier time revealing.