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Metal Detectors
General Metal Detector Discussion
PI and VLF combo detector
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<blockquote data-quote="loamer" data-source="post: 62888" data-attributes="member: 981"><p>This excellent article by White's may be of assistance. <a href="http://www.whiteselectronics.com/the-hobby/knowledge-base/field-reports/how-metal-detectors-work" target="_blank">http://www.whiteselectronics.com/the-hobby/knowledge-base/field-reports/how-metal-detectors-work</a></p><p></p><p>You have asked a good question but the answers I am getting are no, it can't be done because of the two differing types of technology, including the VLF coils are different from the PI coils. As an example, my Minelab Xterra 70 cannot run the coils I run on my Minelab 4500 and visa versa. Also, most manufacturers PI coils are interchangeable between brands (the TDIs are an example), don't know if the same is true with VLFs. </p><p></p><p>As for home made coils - there are a few people who make them, I don't of any who advertise - the good ones are quite expensive given they are hand-made (wiring, fibre glassing etc) The great thing with good quality home-made coils is the toughness of the coil (open a broken manufacturers coil one day and see how actually flimsy they are inside) and the high level of balance - that is the centre is very accurate which if you are digging through ironstone/calcrete you need to know where the centre is to avoid digging bigger holes than you need.</p></blockquote><p></p>
[QUOTE="loamer, post: 62888, member: 981"] This excellent article by White's may be of assistance. [url]http://www.whiteselectronics.com/the-hobby/knowledge-base/field-reports/how-metal-detectors-work[/url] You have asked a good question but the answers I am getting are no, it can't be done because of the two differing types of technology, including the VLF coils are different from the PI coils. As an example, my Minelab Xterra 70 cannot run the coils I run on my Minelab 4500 and visa versa. Also, most manufacturers PI coils are interchangeable between brands (the TDIs are an example), don't know if the same is true with VLFs. As for home made coils - there are a few people who make them, I don't of any who advertise - the good ones are quite expensive given they are hand-made (wiring, fibre glassing etc) The great thing with good quality home-made coils is the toughness of the coil (open a broken manufacturers coil one day and see how actually flimsy they are inside) and the high level of balance - that is the centre is very accurate which if you are digging through ironstone/calcrete you need to know where the centre is to avoid digging bigger holes than you need. [/QUOTE]
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Metal Detectors
General Metal Detector Discussion
PI and VLF combo detector
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