Shielding pickup cavities?

Discussion in 'Epiphone Les Pauls' started by Sinmastah, Mar 17, 2009.

  1. Sinmastah

    Sinmastah Epi Verification Expert V.I.P. Member

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    Well, I am trying to reduce as much noise as possible, mainly from feedbacking. I ordered an ISP Decimator, but I know if you turn them up too high they can squelch tone, so I need a few good ways to minimize feedback and hum. I heard shielding your pickup cavities was a helpful thing to do. Basically you just need to cover the wood with tin foil correctly? Anyone have pics of this done? Also are there any other good tricks in addition that can help minimizing internal noise?
     
  2. klohiq

    klohiq Senior Member

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    grounding the tin foil is good idea...but you cant solder to the tin foil so you either need to use conductive glue or some sort of screw/washer/etc setup.

    but i would reccomend tin foil over copper because its better at shielding, cheaper and bill lawrence likes it too.
     
  3. Sinmastah

    Sinmastah Epi Verification Expert V.I.P. Member

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    Well I was hoping that would just stick in there if it was tight enough, because that's what tinfoil does I thought.
     
  4. GrouchyDog

    GrouchyDog Senior Member

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    Does shielding with foil change your tone? I think I read somewhere (whatever THAT's worth...) that the foil acts as a capacitor and will cut some treble. Any truth to this?
     
  5. Shane

    Shane Senior Member

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  6. Sinmastah

    Sinmastah Epi Verification Expert V.I.P. Member

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    I thought tinfoil would just stay in there w/o needed tape. Guess I could be wrong.
     
  7. Shane

    Shane Senior Member

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    I'd imagine you'd need some form of adhesive to make sure it stays in place. The link in my post is a shielded tape itself, might be worth investing in, I'm thinking of getting some for the Strat copy I'm doing up
     
  8. Sinmastah

    Sinmastah Epi Verification Expert V.I.P. Member

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    I might head down to the local hardware store and see if they have any. Basically all you do is just stick it the wood and cover it all up? Seems easy enough.
     
  9. Shane

    Shane Senior Member

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    I think so, I know on a Strat you also place it under the pickguard so I'd assume on an SG you'd just need to cover the cavity. Hopefully someone here will know a little bit more
     
  10. Sinmastah

    Sinmastah Epi Verification Expert V.I.P. Member

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    Also why does this help? It seems like it shouldn't at all, but I don't know much about wiring.
     
  11. Christmas

    Christmas Senior Member

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    In short, this is correct. There's a reason why you don't see high-end LP guitars with shielding...it's an unnecessary mod that sucks tone. It's been debated on this forum plenty, but I'll stick with what Hillbilly has stated in more than one thread regarding the topic of shielding an LP/SG.

    Reference: http://www.mylespaul.com/forums/epiphone-les-pauls/19888-gutted-my-antique-ivory-custom.html

    IMO, shielding is used on Strats because you're dealing with often-noisy single-coil pickups and the need for noise reduction far outweighs any loss of high-end (if any, I'm not sure if this is the case with a Strat). You already have humbuckers going, so I suggest looking elsewhere to reduce noise. LPs and Strats are very different animals and should be treated as such in regards to electronics.
     
  12. TWANG

    TWANG Senior Member

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    I've used copper foil shielding and not noticed any tone drainage.. I'll read hillbillys thread though, might learn something.

    I get sheets of it from my supplier. adhesive backed.

    There are two kinds of interference, RFI and EFI.. you should read up on this on the web and consider the pros and cons.

    For me, I put it in, and ground it, and I like it just fine.

    the tone argument carrys over to pickup covers as well.. and there's a difference there a lot of time.. metal that close to the coils is part of it, I think, because the sheilding
    seems to have no tonal effect to my ears.

    you need this more on single coils, as humbuckers do just what they say.. resist hum..
    and metal covers sheild from outside sources of electronic irritation.

    Feedback is another thing.

    standing close to a loud amp.. just about anything will feedback..
    single coils more notably.
    semi hollows tend to vibrate a lot more and feedback easier, ie: casinos, dots, 335s etc.
    microphonics are often a source. loose covers, screws or springs, anything near the pickup with can vibrate at volume can cause feedback.
    cheaper made pickups will feedback.
    too much gain causes feedback.

    So I'd try to find out what the problem was for sure before doing anything.

    TWANG
     
  13. Sinster

    Sinster Senior Member

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    Of course it's debated.... because everyone is an expert on electronics.
     
  14. Sinmastah

    Sinmastah Epi Verification Expert V.I.P. Member

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    I am thinking I should be fine without the shielding for now, that is what the Decimator is for. If I still have a problem I will consider it. Although feedback is still an issue, I'm not using cheap pickups, and I don't stand that close to the amp, but if I gotta change settings, I need to be closer. I heard stuffing the pickup cavity can help. Any truth to this?
     
  15. TWANG

    TWANG Senior Member

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    If you stuff the pickup cavity.. you might get some loose parts to stop shaking..
    but that would be about it.

    People used to stuff their semi hollows to stop feedback. But not solid bodys.
    I don't know what your guitar is.
    TWANG
     
  16. Sinmastah

    Sinmastah Epi Verification Expert V.I.P. Member

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  17. vladmaximus

    vladmaximus Senior Member

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    Pics pleaseeeeeeeeeeeeeeeeeeeeeeee....
     
  18. The_Sentry

    The_Sentry Senior Member

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    Confession: I stuffed my archtop....and I'll probably do the same thing to my solid bodies the next time a string change is in order.
     
  19. klohiq

    klohiq Senior Member

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    epiphone uses conductive paint...along with most guitar companies...whether the pickups are humbuckers or single coils...

    if you are that worried about your tone...maybe you should join cork sniffers anonymous.

    i wonder if playing naked affects your tone. :rolleyes:

    [​IMG]
     
  20. grimlyflick

    grimlyflick Member

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    [​IMG]

    My 04' Classic, no tone or high end loss to my ears. :thumb:
     

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