|
Post by firebottles on Dec 15, 2005 12:09:16 GMT -5
OK... I'm in the process of shielding my beast.
question: If a HB cover is metal and the pole screws that come up through it are at all touching the cover... then I send the "cover's bare ground" to the shield, am I creating a ground loop because signal and shield are mingling? Or are they?
|
|
|
Post by UnklMickey on Dec 15, 2005 13:55:44 GMT -5
OK... I'm in the process of shielding my beast. question: If a HB cover is metal and the pole screws that come up through it are at all touching the cover... then I send the "cover's bare ground" to the shield, am I creating a ground loop because signal and shield are mingling? Or are they? best answer i can give you for that is a definite maybe. it would certainly be "safer" to keep the cavity shielding and the pickup cover separate until they reach the star ground. unk
|
|
|
Post by bam on Dec 17, 2005 6:25:26 GMT -5
connect the HB's cover bare ground directly to the star ground, not via the cavity shield.
.. now I know, your pup is a covered HB :lol:
it is designed like that; the cover must be grounded. if you cover the cover with the cage, then it means a "double shielding", that is, a waste of shielding material.
|
|
|
Post by firebottles on Dec 17, 2005 23:02:36 GMT -5
ok, what I have done is insulated the pickups (in the HB) from the exterior base plate and top cover. I did this because some of the poles were touching the outer shell. My thinking is that this mingles the "chassis ground- bridge, and cavity shielding" with the signal ground running throught he actual pickups.
I can see that the cover may have some interplay with the signal since it is metal and shaping the magnetic fields. Are you saying that by sending that to a separate ground I am going to get off track? I would not be so upset about just removing the HB cover.. though it looks cool. I am curious about the cover since just three poles of each pickup are exposed through holes in the cover.. why did they do that?
As for the cage, I was not going to cover the HB case.. but had it lining that cavity. Which I did remove. (see other post about copper alternative)
|
|
|
Post by bam on Dec 18, 2005 1:29:42 GMT -5
no, not that. I said, you should send it directly to star ground. (and it seems that it's the common track ). it's true, it's metal, thus it has something to do with the magnetic field; my hypothesis is, if you connect it to the cavity shield, it means that both it (the cover) and the cavity shield are altering that magnetic field, thus altering/coloring the pup's output; the same principle applies when you remove the cover, too.. (remember, it all is just my hpothesis based on what I've learned from highschool physics class).
|
|