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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: 509921" data-attributes="member: 9224"><p>Thanks to XLOOX I now have a 16volt plus battery holder, that is 4 x 18650 cells for 16.48 volts, perfect for the Tdi SL. A quick test to see if it was all worth it, just to see what gains were on offer. Using the SL Limited Ed, with the Super Pulse 220 coil there was some improvement. Started with the Ukrainian 3 x 18650 pack which came in at 12.38 volts, compared to the modified pack with 4 x 18650 cells at 16.48 volts. Then compared those results with ones from a Tdi Pro using the same coil.<img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1567316915_img_1290_2_edited.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1567316932_img_1300_2_edited.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Tdi Sl with gain at max, GB off, Pulse Delay at 10, in all frequency middle. Using Super Pulse 220 coil,</p><p></p><p>12.38 volts gave 6cm on a 1 grain ingot, 24cm on 0.5 gram gold coin, 32cm on gold Half Sovereign and 27cm on a US Quarter.</p><p>16.48 volst gave 8cm on a 1 grain ingot, 26cm on 0.5 gram gold coin, 35cm on gold Half Sovereign and 30cm on a US Quarter.</p><p>Tdi Pro gave 8cm on a 1 grain ingot, 27cm on 0.5 gram gold coin, 36cm on gold Half Sovereign and 33cm on a US Quarter.</p><p></p><p>The Tdi SL was on MAX gain, the Tdi Pro gain was set a 5.</p><p></p><p>All the best,</p><p>Karelian</p></blockquote><p></p>
[QUOTE="karelian65, post: 509921, member: 9224"] Thanks to XLOOX I now have a 16volt plus battery holder, that is 4 x 18650 cells for 16.48 volts, perfect for the Tdi SL. A quick test to see if it was all worth it, just to see what gains were on offer. Using the SL Limited Ed, with the Super Pulse 220 coil there was some improvement. Started with the Ukrainian 3 x 18650 pack which came in at 12.38 volts, compared to the modified pack with 4 x 18650 cells at 16.48 volts. Then compared those results with ones from a Tdi Pro using the same coil.[img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1567316915_img_1290_2_edited.jpg[/img][img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1567316932_img_1300_2_edited.jpg[/img] Tdi Sl with gain at max, GB off, Pulse Delay at 10, in all frequency middle. Using Super Pulse 220 coil, 12.38 volts gave 6cm on a 1 grain ingot, 24cm on 0.5 gram gold coin, 32cm on gold Half Sovereign and 27cm on a US Quarter. 16.48 volst gave 8cm on a 1 grain ingot, 26cm on 0.5 gram gold coin, 35cm on gold Half Sovereign and 30cm on a US Quarter. Tdi Pro gave 8cm on a 1 grain ingot, 27cm on 0.5 gram gold coin, 36cm on gold Half Sovereign and 33cm on a US Quarter. The Tdi SL was on MAX gain, the Tdi Pro gain was set a 5. All the best, Karelian [/QUOTE]
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Coiltek 6" mono Tdi coil. First impressions & small coil comparisons.
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