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  • Barracuda Legend Kit Problems

    Hey guys i joined a few days ago with the hope that i could sort my issue without raising the typical beginner post by reading others issues and checking out my board but i have not been successful yet. I bought a Barracuda Legend Kit and have put the components on the board as per the numbers i have made sure the 2222 (metal can type) is in the correct orientation i have taken it off the board to check that it isnt in short with one of the other pins (its not). I have set 5534 pin no 6 to 0v. i have a whine/tone when i plug the batt in (12v) and the tone gets louder if i turn the pot up which is what i would expect but when i put the coil on the Mosfet goes mental and over heats in 3 seconds i have cleaned and cleaned again to get rid of any rosin flux shorts. I am stumped as this is where my skill runs out, is there any good folk that would be willing to help me?

  • #2
    hope dies last..... do you have an o-scope?

    Comment


    • #3
      Hi no i dont have a scope only a multi meter.

      Comment


      • #4
        http://www.ebay.com/itm/Vintage-Kiku...gAAOSwuAVWt6fL

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        • #5
          Well the hot FET indicates it is on for too long. You need to check these components;

          Click image for larger version

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          Remove the coil to save the FET if you turn it on. An oscope would make things a little easier.
          I just bought one of these for around $20, it is one channel only but might help.
          http://www.ebay.com/itm/DSO138-2-4-T...UAAOSweW5VMWn-

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          • #6
            dso138 DIY kit... i am not in course of a video in english... did see this nice manual... but in russian.
            https://www.youtube.com/watch?v=PBNy_B_l0OA

            Comment


            • #7
              Originally posted by Impulse View Post
              Hey guys i joined a few days ago with the hope that i could sort my issue without raising the typical beginner post by reading others issues and checking out my board but i have not been successful yet. I bought a Barracuda Legend Kit and have put the components on the board as per the numbers i have made sure the 2222 (metal can type) is in the correct orientation i have taken it off the board to check that it isnt in short with one of the other pins (its not). I have set 5534 pin no 6 to 0v. i have a whine/tone when i plug the batt in (12v) and the tone gets louder if i turn the pot up which is what i would expect but when i put the coil on the Mosfet goes mental and over heats in 3 seconds i have cleaned and cleaned again to get rid of any rosin flux shorts. I am stumped as this is where my skill runs out, is there any good folk that would be willing to help me?
              Exactly the problem I had with a problem 2222 (I had order the right part but an equivalent had been sent. I did not check and fitted 180 degrees out)

              If you are using a TIP127 if you detector starts to work at lower volts I would suspect the 2222 or surrounding components.

              Comment


              • #8
                Describe your coil, diameter, wire size, number of turns
                A common mistake is making a coil of far too high inductance/resistance

                Comment


                • #9
                  Originally posted by kt315 View Post
                  dso138 DIY kit... i am not in course of a video in english... did see this nice manual... but in russian.
                  https://www.youtube.com/watch?v=PBNy_B_l0OA

                  I ordered one from China about a week ago. Probably take another few weeks to arrive. Be interesting to see how a £15 scope works.

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                  • #10
                    i did read chinese copied one from some original. so most of kits at ebay are the copy and their u-chip has 'old' code.
                    while new program code is '50th version'.

                    Comment


                    • #11
                      hey guys my coil is 10" Dia 20 turns magnet wire 0.5mm 1.7 ohms, covered in foil for a temp shield, when i turn on the power i do not get a beep i only get the hum if i turn the pot up to much (good?) and i can wave a large spoon ( first thing to hand ) and if i play with the pots i can get a slight pick up tone but anything smaller and it will not pick it up. i have ordered another kit and will try again its like the bottem w203 pot does not work as it should ?

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                      • #12
                        who did say you to use a foil for shield? WHO? idiotizm.

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                        • #13
                          11mins in, sorry i take it that was a stupid idea?

                          https://www.youtube.com/watch?v=EWwW...27YTHjf-MGWYrI

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                          • #14
                            did you open Whites Surf PI coil or Barracuda coil? did you see foil shielding inside there?

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                            • #15
                              i dont have either of those coils, i have a diy 20 turn 0.5mm coil with foil around it as to act as a faraday cage. the whole set up only picks up a large spoon not my gold chain

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