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  • Small coil

    I want to build a small coil 11 cm but I have problems in remote capture of small objects. I tried two types of DD coil. OO. I wanted to work for Garrett ACE 250 and Delta 4000. has anyone got a idea you-please. Thank you.
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  • #2
    Originally posted by oros27 View Post
    I want to build a small coil 11 cm but I have problems in remote capture of small objects. I tried two types of DD coil. OO. I wanted to work for Garrett ACE 250 and Delta 4000. has anyone got a idea you-please. Thank you.
    Oros, if you know resistances and inductances of original coils for ACE 250 and Delta 4000, please post here.
    Can you explain what are your "small objects"? May be no need of small coil.

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    • #3
      Probably tiny gold nuggets...

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      • #4
        small nuggets. coil to be something like sniper. http://www.youtube.com/watch?v=kEdGW...yer_detailpage

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        • #5
          small nuggets. coil to be something like sniper. http://www.youtube.com/watch?v=kEdGW...yer_detailpage Garrett ace 250 pin 1-3= 4,4 ohm pin 2-3= 29,8 ohm . Delta 4000 pin 1-2 = 22,5 ohm pin 3-4= 4,2 ohm
          Attached Files

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          • #6
            Hi oros27. You must know what is the inductance of the TX and RX coils. After the process "balancing" these two TX and RX coils (OO or DD form)... Coil in the video is about 150 mm ...

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            • #7
              Eventually I managed to make a coil for delta 4000 and are pleased. But can only be used on land not in water. And still support a change 6 AA batteries for a period of time greater operating
              Attached Files

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