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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: 476050" data-attributes="member: 9224"><p>Yep lots of options to increase voltage, 4x 18650 is looking good right now. Air test with gain on max, conductivity on ALL, delay on 10, frequency in the middle, ground balance off.</p><p>Ground testing will tell the real story though later on. Again voltage was 14.3 just prior to test.</p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1552029746_sl_air_test.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>No EMI issues today, Detech seems immune when on Tdi SL.</p><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/9224/1552029829_test_2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>1 grain was 8cm </p><p>5 cents 30 cm</p><p>3 pence 31 cm</p><p>0.5 gram gold coin 25 cm</p><p>1/2 Sovereign 34 cm</p><p>1 penny 32 cm</p><p>buckle 50 cm</p><p>us 1/4 was 30cm</p><p></p><p>Time to take the dremel tool out and butcher a battery box, 4 x 18650 should do the trick. They are hot fresh off the charger but settle to an honest 14.8+, no stories of machines blowing up yet so I'll give it a go. To date I use those Ukrainian 3 x 18650 packs instead of White's factory rechargeable packs. </p><p>Thanks again.</p><p>Karelian</p></blockquote><p></p>
[QUOTE="karelian65, post: 476050, member: 9224"] Yep lots of options to increase voltage, 4x 18650 is looking good right now. Air test with gain on max, conductivity on ALL, delay on 10, frequency in the middle, ground balance off. Ground testing will tell the real story though later on. Again voltage was 14.3 just prior to test. [img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1552029746_sl_air_test.jpg[/img] No EMI issues today, Detech seems immune when on Tdi SL. [img]https://www.prospectingaustralia.com/forum/img/member-images/9224/1552029829_test_2.jpg[/img] 1 grain was 8cm 5 cents 30 cm 3 pence 31 cm 0.5 gram gold coin 25 cm 1/2 Sovereign 34 cm 1 penny 32 cm buckle 50 cm us 1/4 was 30cm Time to take the dremel tool out and butcher a battery box, 4 x 18650 should do the trick. They are hot fresh off the charger but settle to an honest 14.8+, no stories of machines blowing up yet so I'll give it a go. To date I use those Ukrainian 3 x 18650 packs instead of White's factory rechargeable packs. Thanks again. Karelian [/QUOTE]
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Coiltek 6" mono Tdi coil. First impressions & small coil comparisons.
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