Comments on: A Basic Guide To Metal Detector Coils http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/ The almanac of a dirt fisher Thu, 12 Aug 2010 11:58:33 -0400 http://wordpress.org/?v=2.8.6-beta1 hourly 1 By: ALVIN THE CHIPMONK http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-188 ALVIN THE CHIPMONK Thu, 04 Mar 2010 15:36:21 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-188 HIGH MR. CRIST THE CHIPMONK IS HEAR, I'M A 69 YEAR OLD NAM-VET AND 35 YEAR TH'ER. 4 YEARS I'VE BEEN LOOKING FOR OTHER USERS OF A KING COBRA METAL DETECTOR ( BY GOLD MOUNTAIN TECHNOLOGIES IN DESOTO, TEXAS 75115 )LIKE MYSELF WHO MAY ANSWER A QUESTION FOR ME! MY 8 INCH 15 KHZ CONCENTRIC COIL TOP AND BOTTOM HAS SEPERATED ( EXPIRED GLUE I GUESS? )I'VE TRIED DIFFERENT TYPES OF INDUSTRIAL WATERPROOF GLUES WITHOUT SUCESS AND WANTED TO RE-WATERPROOF AND SEAL IT AGAIN FOR A NAM-VET WHO LIKE TO TH. ANY RECOMMENDATIONS? ALSO DO U STILL HAVE ANY OF YOUR OLD COILS 4 SALE? THANK YOU MR. CRIST GOOD HUNTING AND HAVE A BLESSED EVERY DAY HIGH MR. CRIST THE CHIPMONK IS HEAR, I’M A 69 YEAR OLD NAM-VET AND 35 YEAR TH’ER. 4 YEARS I’VE BEEN LOOKING FOR OTHER USERS OF A KING COBRA METAL DETECTOR ( BY GOLD MOUNTAIN TECHNOLOGIES IN DESOTO, TEXAS 75115 )LIKE MYSELF WHO MAY ANSWER A QUESTION FOR ME! MY 8 INCH 15 KHZ CONCENTRIC COIL TOP AND BOTTOM HAS SEPERATED ( EXPIRED GLUE I GUESS? )I’VE TRIED DIFFERENT TYPES OF INDUSTRIAL WATERPROOF GLUES WITHOUT SUCESS AND WANTED TO RE-WATERPROOF AND SEAL IT AGAIN FOR A NAM-VET WHO LIKE TO TH. ANY RECOMMENDATIONS? ALSO DO U STILL HAVE ANY OF YOUR OLD COILS 4 SALE? THANK YOU MR. CRIST GOOD HUNTING AND HAVE A BLESSED EVERY DAY

]]> By: wayne http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-63 wayne Wed, 02 Sep 2009 22:32:10 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-63 Jimmy, thanks for dropping by and sharing your expertise! Jimmy, thanks for dropping by and sharing your expertise!

]]> By: Jimmy Sierra http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-62 Jimmy Sierra Wed, 02 Sep 2009 20:01:31 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-62 Hi Wayne, You have done a fine job of answering the question regarding DD vs concentric coil design. I dont know if I can add much. The DD coil as you stated has the advantage of a larger window so it covers more ground. However, it sacrifices some depth when compared to a mono coil when used in easy soil. Mono coils do go deeper, but not in higher mineralised soil. just as you pointed out. As for the 12 whites mono vs the hotshot that we made, the edge on sensitivity is with the hotshot also the weight. However, we no longer are able to make them as our engineer mfg. died 2 years ago. If you have one you are lucky. they can be repaired if need be, but not made any longer. good luck Jimmy Hi Wayne, You have done a fine job of answering the question regarding DD vs concentric coil design. I dont know if I can add much. The DD coil as you stated has the advantage of a larger window so it covers more ground. However, it sacrifices some depth when compared to a mono coil when used in easy soil. Mono coils do go deeper, but not in higher mineralised soil. just as you pointed out. As for the 12 whites mono vs the hotshot that we made, the edge on sensitivity is with the hotshot also the weight. However, we no longer are able to make them as our engineer mfg. died 2 years ago. If you have one you are lucky. they can be repaired if need be, but not made any longer. good luck Jimmy

]]> By: wayne http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-58 wayne Wed, 02 Sep 2009 05:36:00 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-58 I know the White's Super 12 is a basic "spider" designed concentric coil. The design of the Jimmy Sierra coil is new to me. I'm not sure if it's a standard DD coil or some kind of variation of a DD. If by double ring you mean Double D (DD), then there are situations when it would be better than a same-sized conventional (concentric) coil. Generally DD coils better handle tougher ground conditions, or more highly mineralized ground. These conditions might include red clay like in the southern US as well as volcanic dirt in the north west, sandy conditions in the south west where you might find gold, and "black sand" beaches. "Generally" speaking, in more neutral ground a concentric coil will get better depth, but as the ground conditions get worse the DD coil will start performing better. Do keep in mind though that as you get a larger coil your sensitivity for smaller items like coins will decrease at depth. The really big coils will go deeper, but with less sensitivity for smaller targets. That's why the little coils are more sensitive for small targets. But it's give-and-take because they don't go as deep. I might see if Tony can peek in and respond for clarity! Hope this helps. If not, I'll keep trying! I know the White’s Super 12 is a basic “spider” designed concentric coil. The design of the Jimmy Sierra coil is new to me. I’m not sure if it’s a standard DD coil or some kind of variation of a DD.
If by double ring you mean Double D (DD), then there are situations when it would be better than a same-sized conventional (concentric) coil. Generally DD coils better handle tougher ground conditions, or more highly mineralized ground. These conditions might include red clay like in the southern US as well as volcanic dirt in the north west, sandy conditions in the south west where you might find gold, and “black sand” beaches.
“Generally” speaking, in more neutral ground a concentric coil will get better depth, but as the ground conditions get worse the DD coil will start performing better.
Do keep in mind though that as you get a larger coil your sensitivity for smaller items like coins will decrease at depth. The really big coils will go deeper, but with less sensitivity for smaller targets. That’s why the little coils are more sensitive for small targets. But it’s give-and-take because they don’t go as deep.
I might see if Tony can peek in and respond for clarity!
Hope this helps. If not, I’ll keep trying!

]]> By: Daves Kansas http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-57 Daves Kansas Wed, 02 Sep 2009 05:18:16 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-57 I really wasn't trying to compare manufactures of coils as much as I am trying to figure out the design of a coil and with that which of the designs actually work best for deep coins. Is a double ring coil better at sending and recieving information as compared to a conventional coil? I only mentioned the two manufactures as a illustration or figure. ie: fiq 1 and fiq 2 for this question, since both are a 12 inch coils. I really wasn’t trying to compare manufactures of coils as much as I am trying to figure out the design of a coil and with that which of the designs actually work best for deep coins. Is a double ring coil better at sending and recieving information as compared to a conventional coil? I only mentioned the two manufactures as a illustration or figure. ie: fiq 1 and fiq 2 for this question, since both are a 12 inch coils.

]]> By: wayne http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-56 wayne Wed, 02 Sep 2009 02:48:59 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-56 Steven - Now, I've swung a 5'' coil around before, and a 12'' coil. But a 2'' coil and an 18'' coil? Quite an extreme. I bet the 2'' felt like no coil at all, and the 18'' felt like swinging a hoola hoop. Daves - I gotta admit I don't know much about White's products. I did a quick search about the Jimmy Sierra products. The dual field coils look pretty impressive. For those that aren't familiar with them, check here: http://www.jimmysierra.com/loopsZ.htm. Maybe someone else will jump in with some info? Steven – Now, I’ve swung a 5” coil around before, and a 12” coil. But a 2” coil and an 18” coil? Quite an extreme. I bet the 2” felt like no coil at all, and the 18” felt like swinging a hoola hoop.

Daves – I gotta admit I don’t know much about White’s products. I did a quick search about the Jimmy Sierra products. The dual field coils look pretty impressive. For those that aren’t familiar with them, check here: http://www.jimmysierra.com/loopsZ.htm.
Maybe someone else will jump in with some info?

]]> By: Daves Kansas http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-55 Daves Kansas Tue, 01 Sep 2009 15:57:29 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-55 Okay, That is a informative interview. Now if I only knew if a coil like the whites super 12" Concentric Coil reaches deeper than let's say the Jimmy Sierra 12" Concentric Coil. I quess what I am wanting to know is which design works best? The pancake style or the double ring type coil? Okay, That is a informative interview. Now if I only knew if a coil like the whites super 12″ Concentric Coil reaches deeper than let’s say the Jimmy Sierra 12″ Concentric Coil. I quess what I am wanting to know is which design works best? The pancake style or the double ring type coil?

]]> By: Steven M. Crist http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-54 Steven M. Crist Tue, 01 Sep 2009 05:39:56 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-54 I used to own a "King Cobra" metal detector that I just loved. I had three coils for it; a 2" coil, a 9" coil, and a whopping 18" coil I believe. The 2" coil actually let me get right up on park equipment poles without "singing." Found a lot of coins and rings that way. I used the large one for fields and such without a lot of obstacles. Nowadays I use a White's DFX with the "Big Foot" search coil. That coil lets me cover a lot of ground quickly, and I have yet to miss a target according to friends who have followed behind me with "regular" coils. I used to own a “King Cobra” metal detector that I just loved. I had three coils for it; a 2″ coil, a 9″ coil, and a whopping 18″ coil I believe. The 2″ coil actually let me get right up on park equipment poles without “singing.” Found a lot of coins and rings that way. I used the large one for fields and such without a lot of obstacles. Nowadays I use a White’s DFX with the “Big Foot” search coil. That coil lets me cover a lot of ground quickly, and I have yet to miss a target according to friends who have followed behind me with “regular” coils.

]]> By: wayne http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-53 wayne Mon, 31 Aug 2009 23:08:50 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-53 Glad you liked it! Hopefully I'll have more interviews and articles of interest in the near future! And again, thanks to Tony @ Kellyco! Glad you liked it! Hopefully I’ll have more interviews and articles of interest in the near future!
And again, thanks to Tony @ Kellyco!

]]> By: Daves Kansas http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/comment-page-1/#comment-51 Daves Kansas Mon, 31 Aug 2009 18:22:51 +0000 http://idetectorist.com/2009/08/a-basic-guide-to-metal-detector-coils/#comment-51 That was a great aticle. That was a great aticle.

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