"John Larkin"
The heading and the OP's first post describe his intended application VERY clearly.
You were a born pedantic, autistic IDIOT - Larkin.
When you die is the only time that will change.
...... Phil
Gosh Phil, sometimes you're right, and sometimes you're wrong, but you're always angry.
But I'm having fun while I'm alive. You should try it.
John
"John Larkin"
You were a born pedantic, autistic IDIOT - Larkin.
When you die is the only time that will change.
Hope for the sake of humanity it is real soon.
...... Phil
Well, if I was born that way, I can't help it, can I? So I may as well relax and go with it. And (just to be pedantic) I'm bipolar, not autistic.
Gotta hand it to you there!
It sure sounds like you need a break, to get away from things and relax a little.
Really, all that anger will kill you a lot faster than having fun will kill me. And if you intend to be angry for the rest of your life, you're sort of dead already.
John
"John Larkin Congenital Fuckwit "
** So John Larkin is an admitted Manic / Depressive as well as congenitally autistic.Head shrinkers never reveal the full extent of a patient condition - even to them.
Professional ethics - "do no harm".
To their patient that is.
FUCK the rest of society.
..... Phil
As one with an autistic grandson I resent Phil's rants... BIG TIME!
I guess I'm a bit slow, I should have realized before that there's a really simple solution to disposing of Phil.
I'll have the Autism Society here in Phoenix contact its counterpart in OZ.
Since parents and grandparents of autistic children have rather strong feelings about autism, it wouldn't surprise me if there wasn't an attitude-adjusting "visitation" right away ;-)
...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.
I freely acknowledge the bipolar part, "know thyself" and all that, but I'm certainly not autistic... I'm too empathic, if anything. My wife is a speech pathologist and works with autistic kids daily, so she would know. We do have a common interest in the possible causes of autism, including the geek-mating effect, about which I posted a link recently.
Tall order.
John
It's not logical to me to insult people for what they are... autistic, stupid, black, gay, female, any of that.
What Phil really needs is for somebody to kidnap him and show him a good time.
John
Yes, a gang gay rape should do the trick ;-)
...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.
"John Larkin Congenital Fuckwit "
** Well, you would say that wouldn't you.** What pathetic drivel.
...... Phil
She's not pathetic, she's nearly the ideal woman: smart, skinny, funny, feminine, and makes a lot of money. If you had a woman this good, you wouldn't be so crabby. Or vice versa. Whatever.
John
"John Larkin"
** Snipping and posting irrelevant responses is CLASSIC autistic behaviour.Doing that same thing over and over is even more classis.
QED.
....... Phil
In article , CS wrote: [...]
Per inch, aluminum is only twice as bad as copper but way less expensive. Per pound it is better than copper.
If you are having problems with 60Hz, I wouldn't use either. Magnetic materials like iron do way better.
I seriously doubt the claim of 150dB with two layers of iron. If that was true there wouldn't be a market for 6 layer shield cans.
If this is a home project, I'd use thin "tin plate". Tin plate is tin plated iron. You can hook it together by soldering.
You may want two layers with a spacer between.
To see why work out the ouput voltage for these two circuits:
--the air --- 100K 1K 100V ---/\\/\\---/\\/\\----+----+---- Out ! ! \\ \\ 1.0 / / 1.0
"Ken Smith"
** Laughable nonsense.Tin plate is a completely ineffective magnetic shield.
Did you read the OP's original idea at all?
" I'm planning to build a 2m x 2m Faraday's cage/booth to protect active electric guitar pickups from external electrostatic and electromagnetic noise 20hz-96khz "
The booth is the size of a toilet cubicle intended for a guitarist to sit in while he plays .
The OP is deluded plus has grossly exaggerated the hum problem.
....... Phil
In article , CS wrote: [...]
That sounds like electrostatic pick up is at least part of the problem. In the classic magnetic case, the signal nulls at 90 degrees and is inverted at 180.
-- -- kensmith@rahul.net forging knowledge
In article , Rich Grise wrote: [...]
Now you can get the first bit of AC power shielding from a system with magnetic sensors and bucking coils. They don't spec. the noise however.
-- -- kensmith@rahul.net forging knowledge
That is simply false. Tin plate I've tried was magnetic enough to provide shielding.
So, that is what he is planning on doing. If he was building one the size of a coffin it wouldn't have changed the answer.
-- -- kensmith@rahul.net forging knowledge
"Ken Smith"
** It is completely true.** Bollocks !!!
Magnetic shielding requires special materials, like Mu-metal.
What do you think is used around CRTs inside scopes and for microphone transformers ?
Tin plate ??????
** So says an asinine, posturing fool........ Phil
"Ken Smith"
** Those "emg" pickups are dual coil magnetic - you ass.Look them up .
....... Phil
It was false when you first posted it and it remains false.
This is also simply not true. Any material that has a mu greater than free space will act as a shield. The higher the mu the better, provided it does not saturate.
Even fairly open structures like the body of a car, reduces the amplitude of the AC field seen inside.
-- -- kensmith@rahul.net forging knowledge
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