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Thread: My 2 JBs sound different

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    Something Cool uOpt's Avatar
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    Default Re: My 2 JBs sound different

    FWIW the trembucker will of course have less winds.

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    Member davey boy's Avatar
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    Default Re: My 2 JBs sound different

    Thanks for all the (mostly) helpful comments! Another thing that just dawned on me is that the JB in the charvel is screwed onto the body. That obviously is contributing to the bass boost and probably volume. I havent checked pot values. Since you guys are experts, will the trembucker fit in the strat in terms of the width of the mounting screws? From what I can see, the LP size and trembucker spacing is the same.
    Last edited by davey boy; 04-14-2012 at 08:33 PM.
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    Default Re: My 2 JBs sound different

    Quote Originally Posted by davey boy View Post
    Thanks for all the (mostly) helpful comments! Another thing that just dawned on me is that the JB in the charvel is screwed onto the body. That obviously is contributing to the bass boost and probably volume. I havent checked pot values. Since you guys are experts, will the trembucker fit in the strat in terms of the width of the mounting screws? From what I can see, the LP size and trembucker spacing is the same.
    Yeah the mounting screws are still in the same position for trembucker and regular spacing.

  4. #24
    A Ficus ehdwuld's Avatar
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    Default Re: My 2 JBs sound different

    my JB's are very sensitive to height under the strings

    I would check that first

    the pots and electronics also will make it darker/brighter

    the magnet could be weaker in the older one
    which would account for the "loudness" difference

    all of these things could be the culprit
    or a combination of

    to check the resistance
    do as Itsabass said

    with the pots dimed they should be out of the circuit

    thank you
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    Super Toneologist zenmindbeginner's Avatar
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    Default Re: My 2 JBs sound different

    Yeah, the electronics in a more or less normally wired guitar is a passive circuit. All the pots do is allow us to variably send our signal to ground. Tone pot on 10 means no capacitor. The DC resistance readings should be nearly identical to reading them with a multimeter crimped on the tip and sleeve of the instrument jack as the bare wires of the pickup itself.
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    Mojo's Minions Edgecrusher's Avatar
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    Default Re: My 2 JBs sound different

    Quote Originally Posted by zenmindbeginner View Post
    Yeah, the electronics in a more or less normally wired guitar is a passive circuit. All the pots do is allow us to variably send our signal to ground. Tone pot on 10 means no capacitor. The DC resistance readings should be nearly identical to reading them with a multimeter crimped on the tip and sleeve of the instrument jack as the bare wires of the pickup itself.
    Just cause the system is passive doesnt mean that there isnt resistance added to the circuit beyond the pickup. Why add extra variables when your just trying to compare pickups? If he wanted to compare the guitars then sure add the electronics in too.
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    Super Toneologist zenmindbeginner's Avatar
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    Default Re: My 2 JBs sound different

    Quote Originally Posted by Edgecrusher View Post
    Just cause the system is passive doesnt mean that there isnt resistance added to the circuit beyond the pickup. Why add extra variables when your just trying to compare pickups? If he wanted to compare the guitars then sure add the electronics in too.
    The average guitar cavity contains a few pots and a capacitor... I would hardly call that "electronics". Guitar circuits are incredibly simple designs.

    If it's properly wired, there shouldn't be any added resistance to the circuit.
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    Member davey boy's Avatar
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    Default Re: My 2 JBs sound different

    The strat JB measured out at 15.14 ohms while the charvel measured out at 16.72. This was with the pups still in the guitar:-). I then had fun measuring 2 of my other guitar's pups; a Les Paul Standard with Voo Doos and a custom Strat with Voo Doos. I will say that the ohm readings really don't have any corilation to sounds I like in these instruments. Acoustcally they're all different, with the Fender Ultra being the dullest of the bunch. It's all good though and has been educational.
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    Toneologist DeanSweden's Avatar
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    Default Re: My 2 JBs sound different

    Quote Originally Posted by astrozombie View Post
    wait... how old is the other JB? maybe that's your answer..
    no it's not

  10. #30
    A Ficus ehdwuld's Avatar
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    Default Re: My 2 JBs sound different

    Quote Originally Posted by zenmindbeginner View Post
    The average guitar cavity contains a few pots and a capacitor... I would hardly call that "electronics". Guitar circuits are incredibly simple designs.

    If it's properly wired, there shouldn't be any added resistance to the circuit.
    he's kinda right
    the 500k volume pot , dimed , in parallel with the circuit will allow some "bleed" through the volume

    not as much as a 250k but some

    in this case I think it may be whats making his readings swing from 15k to 16 k
    EHD
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    Default Re: My 2 JBs sound different

    Quote Originally Posted by ehdwuld View Post
    he's kinda right
    the 500k volume pot , dimed , in parallel with the circuit will allow some "bleed" through the volume

    not as much as a 250k but some

    in this case I think it may be whats making his readings swing from 15k to 16 k
    Yep....
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    Mojo's Minions Ed Hunter's Avatar
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    Default Re: My 2 JBs sound different

    Quote Originally Posted by davey boy View Post
    The strat JB measured out at 15.14 ohms while the charvel measured out at 16.72. This was with the pups still in the guitar:-). I then had fun measuring 2 of my other guitar's pups; a Les Paul Standard with Voo Doos and a custom Strat with Voo Doos. I will say that the ohm readings really don't have any corilation to sounds I like in these instruments. Acoustcally they're all different, with the Fender Ultra being the dullest of the bunch. It's all good though and has been educational.
    15.14K for a JB is very off

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