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strange clicking noise from j-pickup

Discussion in 'Pickups & Electronics [BG]' started by SirGus, Oct 9, 2006.


  1. SirGus

    SirGus

    Oct 5, 2006
    Athens, Greece
    Hi all.

    I am testing my new Cort action.
    very satisfied.

    At first I thought that the j-pickup hum was a problem until I found some topics explaining that's it's ok for them to hum due to their features.

    But except the hum I can hear a very strange kind of noise.

    it's like hearing a very short sound like saying "chick"!

    sorry for my english but I wish I could describe that noise!

    I can hear that noise 1 time every 10 seconds with the amp quite loud.

    Oh! it's just like hearing the dust on your old vinyl-disc player playing an old disc!
    that's 100% the same

    (That's not a grounding problem.Sure about that)
     
  2. It sounds like a shielding problem. Your bass seems to be picking up an external noise through RF. Try facing a different direction and see if it changes...probably should try shielding the control cavity with copper foil.

    ~Stan
     
  3. SirGus

    SirGus

    Oct 5, 2006
    Athens, Greece
    thanks stand


    1.How would you call that kind of noise? (the same noise you hear from the dust of old vinyl discs)

    2.Why I have that kind of problem only from the j-pickup then?

    3. RF? What's that?

    ;)
     
  4. SuperDuck

    SuperDuck

    Sep 26, 2000
    Wisconsin
    RF = radio frequencies.

    Stupid question to get out of the way: does your pickup have exposed pole pieces? It could just be your strings hitting the pickup.
     
  5. SirGus

    SirGus

    Oct 5, 2006
    Athens, Greece
    no no...I can hear that noise even I don't play nothing at all.
     
  6. Doctor J

    Doctor J

    Dec 23, 2005
    Do you hear it if you turn your amp on but don't plug in the bass? Have you tried a different cable?
     
  7. SirGus

    SirGus

    Oct 5, 2006
    Athens, Greece
    I hear it only with the bass on.
    Never tried another cable.

    but note that I hear that click noise ONLY from j-pickup

    do you think that it has to do with the hum that the j-pickup does?
     
  8. Doctor J

    Doctor J

    Dec 23, 2005
    There's another pickup in the bass? What is it?

    As said above, shield it. You'll need this sort of stuff.
     
  9. SirGus

    SirGus

    Oct 5, 2006
    Athens, Greece

    There is a p-pickup
    it's the p-j cort action bass.

    but then again why I can hear that noise (not the hum) only from the j-pickup?

    How would you call that noise?

    -Oh! I have that bass for only 1 week, I shouldn't take the risk and shield it :(
     
  10. A p-pickup is normally wound as a humbucker. It cancels noise and hum. A j-pickup is single coil. Single coil pickups sometimes act like an antenna and will pick up all kinds of RF. Sometimes even radio stations!

    Shielding would be your cheapest fix.

    ~Stan
     
  11. SirGus

    SirGus

    Oct 5, 2006
    Athens, Greece
    Thanks Stan.

    I thought that only hum is predictable from j-pickups.

    I think that I will try and risk the shielding project in the future.

    Do you think that the tape is much better than the copper paint I saw on the site?
     
  12. It's definately less messy. I sell much more tape than I do paint and have recently stopped even selling the paint.

    You could also try contacting the place that you bought the bass and have it checked out to make sure that it is not an electrical/grounding problem.

    ~Stan
     
  13. SirGus

    SirGus

    Oct 5, 2006
    Athens, Greece
    I guess that if it was a grounding problem I should have that noise from the p-pickup as well or face the known phenomenon where touching the bass cancels the noise

    or not?
     
  14. Not if the problem is only in the bridge pickup wiring :eyebrow:

    ~Stan
     
  15. can you take it back to the shop you bought it from and tell them to fix it? i would not accept a 1 week old bass having problems.
     
  16. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

     
    Jan 21, 2021

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