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DD coil information and questions
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<blockquote data-quote="condor22" data-source="post: 168403" data-attributes="member: 1932"><p>I picked up an almost new 15 x 12 Commander DD 2nd hand at the Coiltek Gold centre in Maryborough last year for $200 (bargain) had only been used once on a beach.</p><p></p><p>Very stable and good in open ground. Like any large coil, a pig in scrubby patches. My thoughts are that you need a selection of coils depending on usage.</p><p></p><p>I broke it down to size and type, calling the 11" Commanders medium sized. So I got a small mono (8") for mullock heaps and a larger mono (18x12 Coiltek which came with the 5000 as a deal) and as said a larger DD.</p><p></p><p>Simply put, the general rule is, if you want small gold, shallow you need a smallish coil, if you want larger gold, deep, you need a larger coil. Conversely in thicker scrub more often than not a small elliptical is all that you can swing and in noisy, trashy ground a DD still has its uses. </p><p></p><p>I would suggest that if you go over open ground with a large coil, go over it again with a small coil especially if you find something with the large coil.</p></blockquote><p></p>
[QUOTE="condor22, post: 168403, member: 1932"] I picked up an almost new 15 x 12 Commander DD 2nd hand at the Coiltek Gold centre in Maryborough last year for $200 (bargain) had only been used once on a beach. Very stable and good in open ground. Like any large coil, a pig in scrubby patches. My thoughts are that you need a selection of coils depending on usage. I broke it down to size and type, calling the 11" Commanders medium sized. So I got a small mono (8") for mullock heaps and a larger mono (18x12 Coiltek which came with the 5000 as a deal) and as said a larger DD. Simply put, the general rule is, if you want small gold, shallow you need a smallish coil, if you want larger gold, deep, you need a larger coil. Conversely in thicker scrub more often than not a small elliptical is all that you can swing and in noisy, trashy ground a DD still has its uses. I would suggest that if you go over open ground with a large coil, go over it again with a small coil especially if you find something with the large coil. [/QUOTE]
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DD coil information and questions
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