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Coiltek 6" mono Tdi coil. First impressions & small coil comparisons.
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<blockquote data-quote="karelian65" data-source="post: 364991" data-attributes="member: 9224"><p>Just traded an old coil for a White's SuperPulse 220 mono coil. Pretty sure these were meant for the African market but White's USA go rid of them recently with a special sale. Just a few photographs so you can see what I'm on about. Same coil housing as Eclipse 950 etc..</p><p></p><p>Air tests as follows, White's Tdi Pro, ground balance OFF, conductivity ALL, gain on MAX, Frequency in middle using built in speaker. No EMI issues despite suburban setting etc. Quiet stable coil. Hits hard for about 80% of detected depth and tapers off for the last 20% of detected depth. This varies but is a rough estimate depending on the target. It is only an air test, real world ground tests will be different.</p><p></p><p>1 grain ingot 8cm, 5 cent coin 32cm, 3 pence 33cm, .5 gram gold coin 27cm, 1 penny 36cm, US Quarter 33cm, White's Buckle 62cm and finally a Half Sov. 36cm <img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861631_new1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>All repeatable and clear signals, no whispers counted etc..<img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861656_new2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861673_new3.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861693_new4.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>I think these SuperPulse 220 coils were dumped by White's at US $40 each, our American friends got a good deal..</p><p></p><p>All the best,</p><p>Karelian</p></blockquote><p></p>
[QUOTE="karelian65, post: 364991, member: 9224"] Just traded an old coil for a White's SuperPulse 220 mono coil. Pretty sure these were meant for the African market but White's USA go rid of them recently with a special sale. Just a few photographs so you can see what I'm on about. Same coil housing as Eclipse 950 etc.. Air tests as follows, White's Tdi Pro, ground balance OFF, conductivity ALL, gain on MAX, Frequency in middle using built in speaker. No EMI issues despite suburban setting etc. Quiet stable coil. Hits hard for about 80% of detected depth and tapers off for the last 20% of detected depth. This varies but is a rough estimate depending on the target. It is only an air test, real world ground tests will be different. 1 grain ingot 8cm, 5 cent coin 32cm, 3 pence 33cm, .5 gram gold coin 27cm, 1 penny 36cm, US Quarter 33cm, White's Buckle 62cm and finally a Half Sov. 36cm [img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861631_new1.jpg[/img] All repeatable and clear signals, no whispers counted etc..[img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861656_new2.jpg[/img][img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861673_new3.jpg[/img][img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1507861693_new4.jpg[/img] I think these SuperPulse 220 coils were dumped by White's at US $40 each, our American friends got a good deal.. All the best, Karelian [/QUOTE]
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Coiltek 6" mono Tdi coil. First impressions & small coil comparisons.
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