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Pickup Bobbin Height and Treble Response

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  • Pickup Bobbin Height and Treble Response

    With everything else being equal [magnet type, wire type, bobbin construction, DCR, etc] what effect does the height of the bobbin have on the treble response of Strat and Tele. pickups? [of course this also would mean taller magnets] Does the taller coil subtract low end??
    Thanx!

  • #2
    Originally posted by Brian W. View Post
    With everything else being equal [magnet type, wire type, bobbin construction, DCR, etc] what effect does the height of the bobbin have on the treble response of Strat and Tele. pickups? [of course this also would mean taller magnets] Does the taller coil subtract low end??
    Thanx!
    I've measured a lot of thin and wide pickups, the widest being Jazzmaster coils, the thinnest possibly being Tele neck pickups with 43 AWG. When the coil is wider, the capacitance is a low lower and the inductance is higher. For example, with a Jazzmaster coil it's around 50pF parasitic capacitance, and 6.5k DC resistance of 42 AWG results in over 3 henries inductance. A thin Tele neck pickup on the other hand, the capacitance is often at or above 200pF with 43AWG, and inductance in the low 2 Henry range. The inductance has a much more dominant affect on the resonant peak in this case, so if you perceive wider coils to generally be darker, this is quite possibly the reason for it.

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