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help me metal detector bounty hunter ?

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  • #1

    help me metal detector bounty hunter ?

    hello to all of the forums, I bought an electronic time ago, should be a bounty hunter, but I do not have the diagram to mount, I would like to know where the wires go and how many volts of current work; where the speaker wires go: and where the plate is to be mounted, could someone help me? tanks
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  • #2
    Well the from the patent number on that board its probably a White's made in the late 80's.
    I have no idea which one...

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    • #3
      US4677384A - Target-identifying metal detector - Google Patents
      http://www.google.com/patents/US4677384
      The target signal produced by the receive coil of an induction-balance metal detector is demodulated and filtered in matched V X and V R demodulator and filters (11, 13) driven by quadrature versions (TA/TB) of the signal that drives the transmit coil of the detector. The resultant phase quadrature signals--V X and V R --are applied to a ramp computer (15) that internally produces a ramp signal whose slope is a function of the magnitude of the sum of the V X and V R signals. The ramp computer (15) inludes a comparator that combines the ramp signal with a fixed signal whose magnitude is a function of the magnitude of the V X signal. The result is a pulse whose width is a function of the phase angle and, thus, the identity of the target that created the V X and V R signals. The pulse is integrated (17) and the results stored at a TI voltage whose magnitude is functionally related to the identity of the target. The TI voltage is used to control the state of a display (23) calibrated in terms of target identity. A controller (37) that controls the foregoing operations is subject to preventing the display from occurring when a discriminate circuit (25) determines that the TI voltage denotes a target (such as a nail) that is not of interest. The discrimination disablement of the display is subject to being overridden by a signal from a target-select circuit (27) when the TI voltage denotes a target of interest, (e.g., a nickel) falling within the phase angle range that is normally subject to discrimination. Further, the controller (37) only allows the detection sequence to operate if the target produces a signal having a magnitude above a minimal level. The controller is also subject to being overridden by the output of a deep-target circuit (35) designed to be operator-enabled when the detector is being used to locate deeply buried targets in ground having a low mineralization content.

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      • #4
        yes ok, I had also found this but I still unable to understand where and how the power is connected, the speaker, and the plate, someone could make me see where? scoring + and -? thanks

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        • #5
          Well you either need to draw the schematic or hope someone has seen it before and
          can post a picture...

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          • #6
            Originally posted by roccocoin View Post
            yes ok, I had also found this but I still unable to understand where and how the power is connected, the speaker, and the plate, someone could make me see where? scoring + and -? thanks
            Wow, this will be difficult. Looks like a very old circuit, maybe a Big Bud.

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            • #7
              Microprocessor Z86 we can find inside new BH Quick Draw II too, so as Carl-Nc says, it can lead from old Big Bud.

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              • #8
                Yes Here's a picture of my Tracker 505 ID the layout looks similar though mine doesn't have the Micro;
                Click image for larger version Name: TrackerID505.jpg Views: 1 Size: 178.2 KB ID: 341787

                It also has some marking on the wire connections...

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                • #9
                  Teknetics Big Bud Pro SE is full analog. here Zilog micro based sch. seems it may be Quick Draw II but then topickiller has to find out a LCD to it... the micro offers using a LCD.

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                  • #10
                    Originally posted by kt315 View Post
                    Teknetics Big Bud Pro SE is full analog. here Zilog micro based sch. seems it may be Quick Draw II but then topickiller has to find out a LCD to it... the micro offers using a LCD.
                    Could be, but there was at least 5 version of BH Big Bud and some of those was digital (par example Big Bud Pro S.E.D.).

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                    • #11
                      I did look the patent US4677384.pdf... George Payne must say more...

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                      • #12
                        http://compass-metal-detector-forum.548136.n2.nabble.com/Big-Bud-Pro-differences-td7463942.html

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                        • #13
                          I thank all those who are helping me but really I see it hard to mount this metal detector

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                          • #14
                            Here's a schematic to big bud;
                            http://www.geotech1.com/forums/attachment.php?attachmentid=18513&d=1329408090

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                            • #15
                              ok, thanks but on my pcb there a processor and I think that the power could be with 2 battery packs

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