Find's Treasure Forums
Welcome to Find's Treasure Forums, Guests!
You are viewing this forums as a guest which limits you to read only status.
Only registered members may post stories, questions, classifieds, reply to other posts, contact other members using built in messaging and use many other features found on these forums.
Why not register and join us today? It's free! (We don't share your email addresses with anyone.) We keep email addresses of our users to protect them and others from bad people posting things they shouldn't.
Click here to register!
Need Support Help?
Cannot log in?, click here to have new password emailed to you
8inch v 10inch coils
- Thread starter altinkum
- Start date
I,agree with Chuck,both of these coils work great.The Tornado 800 allows for a faster sweep and a sharp response and still have good depth.The 10 inch Tornado has excellent depth and is probably the best all around coil.Both are good to have for any search situation. HH Ron
jamesinwesttexas
New member
Since I started using the 8 inch coil almost a year ago, I haven't put the 10 inch back on. If I had to choose only one of them it would be the 8 inch but I tend to hunt trashy areas. The 8 inch is so light and handy it's a real pleasure.
In an air test the difference is fractional, I have and do use both an 8 and a ten inch a coil,, on the ground a coil generates( as you know,), a magnetic field downwards upwards side ways , roughly to the diameter of your coil,, ie , 10 inch coil may detect a copper penny at 11 inches , 8 inch 9 inches ground conditions may alter this if its damp it may give you a bit more depth.
So whats the advantage of using a eight inch coil, on the beach is none at all unless you have a real trashy area and then the physical size may get you in between iron , but because the recovery speed is so slow on FBS machines it wont matter.
Where an eight inch coil come into its own ,, this my opinion,, is on pasture or ground where there are very small targets like small hammered coins ,its not because a bigger 10 inch wont coil wont find them as the size and depth difference between the two is minimal, but when you use the smaller coil to cover the ground you tend to swing slower to cover ground and you tend to do it more precisely and the slower you go with in reason ,, the more time for your machine has to recover and hit that next good target, pinpointing with the eight inch coil is a doddle , and its lighter ...
So whats the advantage of using a eight inch coil, on the beach is none at all unless you have a real trashy area and then the physical size may get you in between iron , but because the recovery speed is so slow on FBS machines it wont matter.
Where an eight inch coil come into its own ,, this my opinion,, is on pasture or ground where there are very small targets like small hammered coins ,its not because a bigger 10 inch wont coil wont find them as the size and depth difference between the two is minimal, but when you use the smaller coil to cover the ground you tend to swing slower to cover ground and you tend to do it more precisely and the slower you go with in reason ,, the more time for your machine has to recover and hit that next good target, pinpointing with the eight inch coil is a doddle , and its lighter ...
JimmyCT
Well-known member
Hi Mike,
To answer your question on depth between the 8" & 10" tornado coils: Well if the ground is fairly clean you want to run the larger coil as it will get a bit better in depth then the 8". The 8", if trashy, will outshine its counterpart as I feel it has the ability to seperate much better. So if there is a coin at 8 inches in a trashy area that 10" coil may null out with all the iron trash and completely miss the target even though it is well capable of reaching the coin. But what good is all that "reaching" if it can't seperate well ? This is where I feel the 8" tornado (actual 7 1/4" ) coil shines through. I recently bought the 800 tornado and have re-visited trashy areas that I have been through with the 10" tornado and have been finding quite a few (old ) coins the larger tornado walked right over. I am not saying the larger coil is no good - I am saying the larger coil is super if the ground is relatively clean. So both coils have their places to be used. The 8" Tornado is a nice versatile coil, it seperates really well between multiple targets and reaches good depths. Ultimately knowing what I know now, I wish I had the Tornado 800 coil when I first purchased my sov GT. That isn't saying I wouldn't buy the 10" because I would as both are super coils. I feel that if I had the 8" coil with the purchase, I would have more good finds in my "basket" as much of my hunting was in trashy sites. hope this helps - Jim aka Q-man
To answer your question on depth between the 8" & 10" tornado coils: Well if the ground is fairly clean you want to run the larger coil as it will get a bit better in depth then the 8". The 8", if trashy, will outshine its counterpart as I feel it has the ability to seperate much better. So if there is a coin at 8 inches in a trashy area that 10" coil may null out with all the iron trash and completely miss the target even though it is well capable of reaching the coin. But what good is all that "reaching" if it can't seperate well ? This is where I feel the 8" tornado (actual 7 1/4" ) coil shines through. I recently bought the 800 tornado and have re-visited trashy areas that I have been through with the 10" tornado and have been finding quite a few (old ) coins the larger tornado walked right over. I am not saying the larger coil is no good - I am saying the larger coil is super if the ground is relatively clean. So both coils have their places to be used. The 8" Tornado is a nice versatile coil, it seperates really well between multiple targets and reaches good depths. Ultimately knowing what I know now, I wish I had the Tornado 800 coil when I first purchased my sov GT. That isn't saying I wouldn't buy the 10" because I would as both are super coils. I feel that if I had the 8" coil with the purchase, I would have more good finds in my "basket" as much of my hunting was in trashy sites. hope this helps - Jim aka Q-man
altinkum said:
Rob in (Ca)
Active member
Clive's latest book, really push's for the 8 inch coil .... You can run higher sensitivity... .. less EMI, the pay off, is you find smaller size jewelry, where the bigger coils can not find the small jewelry .... the con's are, less ground coverage and slightly less depth.