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  • I want to start making. Which version is better?
    List of parts?

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    • Версия 3. V3

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      • Моля, изпратете плана
        tnx buddy

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        • Originally posted by crni1 View Post
          My SMV 2.0 still has a low range of detection, discrimination is excellent.
          [ATTACH]44312[/ATTACH][ATTACH]44311[/ATTACH]
          And SMV V 1.0 depth and discrimination are excellent.
          What is the detection range you reached it in both version?
          my detection range is not good. 20mm copper coin just 25 cm with descrimination. also there is critical point in frequency potentiometer . if you adjust it slowly to get point where the audio becomes softer without cracks.
          i think i will try with 555 version i hope i get some improvement.

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          • Originally posted by totob View Post
            What is the detection range you reached it in both version?
            my detection range is not good. 20mm copper coin just 25 cm with descrimination. also there is critical point in frequency potentiometer . if you adjust it slowly to get point where the audio becomes softer without cracks.
            i think i will try with 555 version i hope i get some improvement.
            SMW v 2.0
            The largest range on the coin is 12cm, on a larger object up to 15cm. and without discrimination, and I tried all the steamed transistors and changing IC circuits, only that my PCB is something wrong.
            The 555 plates work perfectly and the depth of the coin in the earth about 30cm. and discrimination very good in the range of factory detectors. Coil is my manual work.

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            • crni1
              your depht with v2 it is very poor
              Check the rotation if it is transistor MPSA13
              Click image for larger version

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              • Originally posted by crni1 View Post
                SMW v 2.0
                The largest range on the coin is 12cm, on a larger object up to 15cm. and without discrimination, and I tried all the steamed transistors and changing IC circuits, only that my PCB is something wrong.
                The 555 plates work perfectly and the depth of the coin in the earth about 30cm. and discrimination very good in the range of factory detectors. Coil is my manual work.
                Ужас просто ужас.
                Провери pcb

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                • Originally posted by pustareka View Post
                  Ужас просто ужас.
                  Провери pcb
                  pustareka - Please write your posts in English -> Basic Rules of the Forums

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                  • Originally posted by pustareka View Post
                    Ужас просто ужас.
                    Провери pcb
                    Not a countryman of that tile is ok, I've been overcome by it for a long time.
                    This other one does not work for me, or rather it works, but very badly.

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                    • Not Totob has been replaced with BC 547 but no difference.
                      Maybe something else.

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                      • Originally posted by Qiaozhi View Post
                        pustareka - Please write your posts in English -> Basic Rules of the Forums
                        Qiaozhi - bad angliski sory

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                        • СМВ 1.0 и СМВ 2.0 су суштински исти детектори, промене које сам урадио на СМВ 1 и вер.2-0 и имам мало боље резултате, новчић од 10-12 цм. веће ставке до 50цм. у ваздуху.

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                          • crni1
                            in (smw v2) try to turn threshold pot to full anticlockwise
                            in my case i got better sensitivity (25mm copper coin detcected at 38cm in air) with 27cm coil.

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                            • Comment


                              • Originally posted by crni1 View Post
                                СМВ 1.0 и СМВ 2.0 су суштински исти детектори, промене које сам урадио на СМВ 1 и вер.2-0 и имам мало боље резултате, новчић од 10-12 цм. веће ставке до 50цм. у ваздуху.
                                Please write your posts in English -> Basic Rules of the Forums

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