Look I do not reply directly to w_tom nowadays as he/she/it is so full of crap...
P
Phil Allison
"CS" = COMPLETE S*****AD !
** Add dumb as dog s*it to.
...... Phil
E
Earle
They got you to help them. Not so dumb are they?
Z
zekor
You should be able to know what the field is first. Take your equipment common and attach a wire to a piece of aluminum window screen or just plain alauminum metal. Wave it around with the guitar fixed. Then take a fairly large piece of steel and wave it around. If the first method made changes then thats a electrostatic field, and the second magnetic and partially electrostatic.
GS
B
Bob Masta
As others have noted, this problem may not be helped by a Faraday cage, which only provides electrostatic shielding. But it should be easy enough to test this for yourself, by wrapping your guitar in aluminum foil. (You should first wrap it in plastic so the foil doesn't contact the strings.) Then ground the foil... presto! A mini-Faraday cage!
Don't worry about the fact that Faraday cages usually use copper mesh. The difference here will be trivial, except to your wallet.
I'll be surprised if it solves your problem, but at least you'll know quickly and cheaply. And if it doesn't, I don't have any tricks to offer.... I've also had plenty of hum problems from alleged humbucker pickups. Which is pretty annoying considering that they cost more, sound worse, and have lower output than ordinary "hot" pickups.
Best regards,
Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis
formatting link
Home of DaqGen, the FREEWARE signal generator
M
Meindert Sprang
Two corrections:
1) a faraday cage shields agaist electrostatic and magnetic fields, in case of an AC field.
2) a faraday cage does not need to be grounded.
Meindert
G
GregS
Thanks for the definition. In this real world situation, you have an imperfect cage, and you have things inside coupled to the outside.
greg
P
Phil Allison
** Straight from the Twilight Zone.....
........ Phil
P
Phil Allison
"Meindert Sprang Dutch F****it"
** Crapology !!!!!!!!!!!!!
There is ZERO attenuation of low frequency magnetic induction.
....... Phil
P
Phil Allison
"GregS"
** NEVER mistake a *Daffy Notion" for a "definition".
Be like mistaking s*it for chocolate.
Yuckee poo..........
...... Phil
J
John Larkin
A Hoffmann 14-gauge formed-and-welded steel electrical enclosure is a pretty substantial hunk of metal, and won't dependably attenuate a 60 Hz magnetic field by 2:1, a mere 6 dB. And the bigger the box, the worse the shielding.
John
P
Phil Allison
"jasen"
** Matches the *unbalanced* players .
..... Phil
F
Frank Raffaeli
Q:How do you know when the stage is level?
A: The bass player is drooling out *both* sides of his mouth
---------
Q: What do you call a drummer that just broke up w / girlfriend?
A: Homeless
Couldn't resist.
Frank
E
Eeyore
You're wasting your time !
I do know a guy who built a huge Faraday cage in Mark Knopler's studio in London btw.
Graham
E
Eeyore
You need a different guitar.
Graham
J
Jim Thompson
In my day they were called "screen rooms". We had one at Motorola SPD that was 10' X 10' X 10', 2" X 6" studs, wire mesh on both surfaces.
...Jim Thompson
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
E
Eeyore
London
There was something pretty similar to that at Kelvin Hughes radar. Interesting place to work for a while.
Graham
R
Rene Tschaggelar
Almost. The currents induced in the conductor take energy off the field and thus attenuate it.
It takes a good deal of copper, several mm roughly as I recall, to produce enough eddy-current effects to cut a 60 Hz magnetic field in half. Skin depth in copper is about 8 mm at 60 Hz, so that sort of brackets the attenuation numbers. 1 oz copperclad FR4 starts being a useful shield at some 10's of KHz.
John
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