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Modification suggestions to separate a copper penny and dime

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  • #16
    Found it
    Copper cent and dime are very close, separated by only 10 degrees phase shift.
    Attached Files

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    • #17
      Originally posted by green View Post
      Some time constant measurements made with a PI. Don't know how compares with VLF.
      Your measurements jive nicely with conductivity chart.

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      • #18
        This is where a notch feature of the golden sabre or king cobra would be great, you could get rid of the zinc and copper cent??

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        • #19
          Originally posted by dbanner View Post
          Found it
          Copper cent and dime are very close, separated by only 10 degrees phase shift.
          I only mention this as good to know info, but not all bottle caps are steel, they tend to be a mixture of all sorts of alloys.

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          • #20
            Originally posted by 6666 View Post
            I only mention this as good to know info, but not all bottle caps are steel, they tend to be a mixture of all sorts of alloys.
            True.

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            • #21
              I am looking at some things that might work for this and if they are successful I will post the results and what I did here. Thanks

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              • #22
                Originally posted by treasurehunter747 View Post
                Most stock Tesoro detectors will not separate a copper penny and dime even when using a 10 turn pot for discrimination.
                Higher frequencies tend to expand the low conductivity part of the scale but compress the copper/silver high conductors closer together. The 6.592kHz White's could pretty easily separate copper cents & dimes, the Tesoros tend to run 10/12kHz and may have more trouble.

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                • #23
                  Thanks Carl. I have noticed over the years some of the Whites machines I have separating the dime and penny fairly easily. The older Whites CL Pro 6000 is still one of the best analogs. Have a great day.

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                  • #24
                    Whites XL Pro 6000 I meant. Sorry

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                    • #25
                      If someone has made a modification to their machine
                      ---
                      you may buy XLT... ?? or to buy VDI block from russians and set.

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                      • #26
                        KT 315 I have had an XLT and a very good machine for sure designed mainly by Mark Rowan who was chief engineer for Whites for many years. Im just not a big fan of digital audio tones. The XLT was the first detector to allow the user to change practically ever option possible and that opened up a world of opportunities. And by VDI block if your talking about a VDI module to connect to a detector without VDI I have built a few of those and from time to time I like a target VDI but if it has it I like to use full tone audio. Thanks for all your contributions KT315 you have been a member for a long time and your input and contributions are priceless. Thank you

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                        • #27
                          TH747
                          if you want sound CZ5 is good to retune for your needs i think. but what trimmer/trimmers to touch i do not in course.
                          we do not have service manual while thats existing.

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                          • #28
                            Originally posted by dbanner View Post
                            Found it
                            Copper cent and dime are very close, separated by only 10 degrees phase shift.
                            always wondered how these figures hold up in different ground conditions

                            For example a button top on wet sand moves from being discriminated out from 5 on the dial in air tests to 3 on the beach. Is everything else moved exactly 2 position down on the dial

                            Personally I dig everything above a large nail.

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                            • #29
                              Hi KT315,
                              I have a CZ6a that I made into an 8 tone machine as the chip onboard can provide 8 tones but only 3 or 4 are used. The 8 tones are very nice and I enjoy analog tones. I also made the discrimination a 3 3/4 turn disc as I did not like the click discrimination that was sort of a preset selectable with the resistors mounted inside for each click. I also added a switch to silence the iron tones if I wanted and in some places I hunt the iron silence is very nice to have as there is a lot of iron targets. I added a separate iron control so that I could adjust exactly how much iron I wanted to allow and this iron control only affects the iron targets and nothing else. In a few weeks I would like to add a VDI to each of the two frequencies to see how that works and if in fact it does. With Arduino a lot of possibilities have opened up. Thanks for your replies my friend...

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                              • #30
                                Koala if it weren’t for the darn ground matrix detecting would be so much simpler but it gets in the way every time.

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