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turns theory.....

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  • #46
    weird...

    its still a weird concept eddy currents flowing in a closed coil but not in one with unconnected ends. You'd think there'd still be eddy currents working there because basically you have this mass of copper overlaying the first coil, but NO it has almost no effect when the coil is open. So I guess another way to kill some treble is foil tape and solder it closed, have to try that next. I think SRV did that to his pickups....
    http://www.SDpickups.com
    Stephens Design Pickups

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    • #47
      Originally posted by Possum View Post
      its still a weird concept eddy currents flowing in a closed coil but not in one with unconnected ends. You'd think there'd still be eddy currents working there because basically you have this mass of copper overlaying the first coil, but NO it has almost no effect when the coil is open. So I guess another way to kill some treble is foil tape and solder it closed, have to try that next. I think SRV did that to his pickups....
      It works, tried it last night on an over bright humbucker using the copper tape, did both coils, 1 wrap each, then used a 1 inch piece on the ends of both and soldered there as well as each coils tape. Took down the highs a very noticeable amount. I think you could infinitely tune PU's this way. Has me thinking now

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      • #48
        Originally posted by Possum View Post
        it's still a weird concept eddy currents flowing in a closed coil but not in one with unconnected ends. You'd think there'd still be eddy currents working there because basically you have this mass of copper overlaying the first coil, but NO it has almost no effect when the coil is open.
        Well, eddy currents have standards too, and won't flow in any old direction. The rule of thumb is that those eddy currents that can affect a coil flow in a rough image of (parallel to the windings of) that coil. And so currents trying to flow across the width of a foil tape don't get no respect.

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        • #49
          Any port in a storm.

          Originally posted by kevinT View Post
          hehehe....what a combination
          Yeah, everybody knows you drink a hefty white with turkey
          (unless it's during a storm).

          -drh
          He who moderates least moderates best.

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