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Gold Prospecting
Do It Yourself (DIY) Projects
Surf Pi Build + inbuilt pinpointer
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<blockquote data-quote="pberrett" data-source="post: 59541" data-attributes="member: 2077"><p><img src="https://www.prospectingaustralia.com/forum/img/member-images/2077/1393496033_img_0269.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>These are various coils I have made and I will choose whichever works best once I get the circuit up and running again.</p><p></p><p>I made a spiral coil using twin speaker cable. It worked pretty well but I found it was a bit heavy so I have reduced it to a single cable and rewound it. We'll see if it still works. Next is a coil wound with 21 turns of 24 awg copper wire. It is wrapped in aluminium foil and then taped over. I'll see if this works better and also warp it into an oval shape which I'm told gives better depth.</p><p></p><p>You can see the prewound coil I used to test the pinpointer idea but I have since wound several turns of 24 awg copper wire around a cardboard tube which in turn is wound around a ferrite rod. We'll see how that performs as well</p></blockquote><p></p>
[QUOTE="pberrett, post: 59541, member: 2077"] [img]https://www.prospectingaustralia.com/forum/img/member-images/2077/1393496033_img_0269.jpg[/img] These are various coils I have made and I will choose whichever works best once I get the circuit up and running again. I made a spiral coil using twin speaker cable. It worked pretty well but I found it was a bit heavy so I have reduced it to a single cable and rewound it. We'll see if it still works. Next is a coil wound with 21 turns of 24 awg copper wire. It is wrapped in aluminium foil and then taped over. I'll see if this works better and also warp it into an oval shape which I'm told gives better depth. You can see the prewound coil I used to test the pinpointer idea but I have since wound several turns of 24 awg copper wire around a cardboard tube which in turn is wound around a ferrite rod. We'll see how that performs as well [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Surf Pi Build + inbuilt pinpointer
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