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  • Gold Gun AL718

    Hi to all
    Does anyone have a schematic of the gold gun AL 718 transmitter? This receiver works well but i don't have the original transmitter and my transmitter does not match well with Receiver.
    please help me.

  • #2
    Hi Ishtar, how do you expect that original transmitter will work better than yours?

    If transmitter is tuned at the same frequency than receiver, then all is ok.

    But probably you transmitter emit too much power, or you put it to close to receiver and so transmitter signal suppress all other useful signal. Al718 works on very long wave and need distance to proper wave polarization. You need very weak transmitter and antenna that can be oriented in all directions to get proper wave polarization. Even so transmitter should not be to close to receiver. Play with this, rather than asking for original transmitter which will not solve your problem.
    Global capital is ruining your life?
    You have right to self-defence!

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    • #3
      Originally posted by ishtar hunter View Post
      Hi to all
      Does anyone have a schematic of the gold gun AL 718 transmitter? This receiver works well but i don't have the original transmitter and my transmitter does not match well with Receiver.
      please help me.
      see this circuit
      Attached Files
      No matter how the speed of light is high , Darkness is one step ahead .

      Comment


      • #4
        This schematic is wrong....
        Geo

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        • #5
          DRAGON 5

          Originally posted by WM6 View Post
          Hi Ishtar, how do you expect that original transmitter will work better than yours?

          If transmitter is tuned at the same frequency than receiver, then all is ok.

          But probably you transmitter emit too much power, or you put it to close to receiver and so transmitter signal suppress all other useful signal. Al718 works on very long wave and need distance to proper wave polarization. You need very weak transmitter and antenna that can be oriented in all directions to get proper wave polarization. Even so transmitter should not be to close to receiver. Play with this, rather than asking for original transmitter which will not solve your problem.
          Hi wm6 thank's so much .i attach my home made lrl picture and Operating frequency. this lrl work very good .i can find void and i dig so find void but in 5 khz for gold(I had adjust for Gold) in my Country(iran) this frequency detect iron . when i detect so dig i find iron so i change to 118 khz for gold and this problem was solved . voltage for gold is 6 volt on 118 khz -this detector can operate for gold 118 khz -silver 6khz-bronze 7 khz - void- diamond 90 khz. main voltage is 12 volt and all Output frequencies are stable and does not change during the search . I've used a bunch of aluminum with Bearings to connect antenna.(Sorry Tim Williams for the use of their logo).
          Attached Files

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          • #6
            Ans on gold freq getting iron

            In my chart of the elements where I derived the frequency the frequency of 5 khz for gold is very close to the frequency of one of the oxides of iron as both have close to the same atomic weight. Frequency is directly correlated with weight. The 118 khz is an upper harmonic if gold and far enough away from the upper harmonics of iron oxide that you can use it.
            Goldfinder

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            • #7
              Originally posted by goldfinder View Post
              In my chart of the elements where I derived the frequency the frequency of 5 khz for gold is very close to the frequency of one of the oxides of iron as both have close to the same atomic weight. Frequency is directly correlated with weight. The 118 khz is an upper harmonic if gold and far enough away from the upper harmonics of iron oxide that you can use it.
              Goldfinder
              Thank's my friend

              Comment


              • #8
                That's one fancy lrl. You know people well think I made that unit with my logo on it.

                Tim
                Bringing metal detectors into the world of imaging!

                sigpic

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                • #9
                  Originally posted by goldfinder View Post
                  In my chart of the elements where I derived the frequency the frequency of 5 khz for gold is very close to the frequency of one of the oxides of iron as both have close to the same atomic weight. Frequency is directly correlated with weight. The 118 khz is an upper harmonic if gold and far enough away from the upper harmonics of iron oxide that you can use it.
                  Goldfinder
                  very thanks my dear
                  No matter how the speed of light is high , Darkness is one step ahead .

                  Comment


                  • #10
                    Hi.
                    Does anyone has the schematic from the audio (amplifier lm386) of AL718 or Al707???


                    Regards
                    Geo

                    Comment


                    • #11
                      Originally posted by Geo View Post
                      Hi.
                      Does anyone has the schematic from the audio (amplifier lm386) of AL718 or Al707???


                      Regards
                      do you think this schematic ???
                      Attached Files
                      No matter how the speed of light is high , Darkness is one step ahead .

                      Comment


                      • #12
                        LM386 datashet
                        Attached Files
                        No matter how the speed of light is high , Darkness is one step ahead .

                        Comment


                        • #13
                          Originally posted by reza vir View Post
                          LM386 datashet
                          Thanks but i need the exactly (original) schematic of the audio amplifier from GG.
                          Geo

                          Comment


                          • #14
                            Geo This is the original scheme gold gan al 707 ..
                            if you can help

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                            • #15
                              Originally posted by dojranski View Post
                              Geo This is the original scheme gold gan al 707 ..
                              if you can help

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