Giron for EMF Shielding
apa
looking for materials to shield a guitar cavity. I'm wondering if this
or something else would be significantly better than copper.
Thanks, Andy
Don Pearce
wrote:
Wrong stuff - that is for magnetic shielding.Get sticky copper foil
for this job.
d
Scott Dorsey
It's like a swanky mu-metal. It's useful for blocking magnetic fields,
which is probably not what you want to do on a guitar pickup. It's less
useful than copper for blocking electric fields since it's not as conductive.
It's not as effective as mu-metal but it's easier to work with.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
apa
Great. Just what I needed to know. Thanks guys.
-Andy
apa
The noise projected by fluorescent lights is EMF, right?
Would the Giron be any help against that?
Or does it not help any because you still have to leave the pickups
exposed?
-Andy
Don Pearce
wrote:
EMI not EMF (which just means voltage). The EM part means
electromagnetic, which means a combination of electrical and magnetic
waves. Copper will kill both of these very effectively. A piece so
thin you can see through it will do. Get some sticky backed copper
foil and line the recess. There are two kinds. Try and get the one
with conductive glue. If you can't, solder adjacent pieces together.
d
Scott Dorsey
It's both EMF, and straight electrical fields and magnetic fields. At
higher frequencies, you care about the electromagnetic effects. At low
frequencies you care mostly about electrical and magnetic stuff.
>Would the Giron be any help against that?
If you effectively shield a pickup from magnetic fields, it won't be
a pickup any more because the string won't affect it.
>Or does it not help any because you still have to leave the pickups
>exposed?
Fluorescent lights have no place in a studio. Get them out. They are
noise sources.
apa
> apa <tacom...@hotmail.com> wrote:
>
> >The noise projected by fluorescent lights is EMF, right?
>
> It's both EMF, and straight electrical fields and magnetic fields. At
> higher frequencies, you care about the electromagnetic effects. At low
> frequencies you care mostly about electrical and magnetic stuff.
>
What would be considered high and low frequencies in this case?
> >Would the Giron be any help against that?
>
> If you effectively shield a pickup from magnetic fields, it won't be
> a pickup any more because the string won't affect it.
>
> >Or does it not help any because you still have to leave the pickups
> >exposed?
>
> Fluorescent lights have no place in a studio. Get them out. They are
> noise sources.
Unfortunately the problem is when I take the guitar out of the
studio.
It buzzes pretty bad at some clubs.
Scott Dorsey
>On Nov 10, 2:10=A0pm, klu...@panix.com (Scott Dorsey) wrote:
>> apa =A0<tacom...@hotmail.com> wrote:
>>
>> >The noise projected by fluorescent lights is EMF, right?
>>
>> higher frequencies, you care about the electromagnetic effects. =A0At low
>> frequencies you care mostly about electrical and magnetic stuff.
>
>What would be considered high and low frequencies in this case?
Dunno where the crossover point is, really. At 1MHz, you're thinking
about EMF where you have the E field making the B field making the E
field again.
At 60 Hz, you're dealing almost entirely with the magnetic field in
most cases.
For video sweep at 17 Khz, it could be a tossup.
>> Fluorescent lights have no place in a studio. =A0Get them out. =A0They ar=
>e
>> noise sources.
>
>Unfortunately the problem is when I take the guitar out of the
>studio.
>It buzzes pretty bad at some clubs.
Find the source. Neon signs? Lighting dimmers? There is after all a
reason why Les Paul promoted a balanced guitar pickup standard...