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Faraday Cage?
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Vince



Joined: 10 May 2007
Posts: 11429
Location: Decatur IL

PostPosted: Sun Aug 15, 2010 5:34 pm    Post subject: Faraday Cage? Reply with quote

Anyone ever use one of these?

http://thetubestore.com/tubecage.html
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rhardman



Joined: 11 Sep 2008
Posts: 4422
Location: Chicago, not ready for reform, yet

PostPosted: Sun Aug 15, 2010 8:05 pm    Post subject: Reply with quote

nice marketing job...it is a tube shield being called by its' scientific name.

probably for 10X the cost of a normal one.
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tangelolemon



Joined: 26 Jan 2009
Posts: 2691
Location: Brooklyn, NY

PostPosted: Sun Aug 15, 2010 9:45 pm    Post subject: Reply with quote

No, but on a related note, I've considered multiple times building a big walk-in Faraday cage to sit in while recording guitar tracks with single coil guitars. In particular, I have a '62 jazzmaster that is very susceptible to stray hum. I've wondered if sitting in a Faraday cage while recording would eliminate that.

Seems like it wouldn't be too expensive a project. just a little wood and some regular old metal door screen. Make sure all screen is connected by soldering little jumper wires between each piece for good measure. Then have a long piece of wire with an alligator clip on the end, to ground it. The only problem is storing that big ugly thing. Very Happy
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marksound



Joined: 15 Aug 2005
Posts: 16669
Location: OKUSA

PostPosted: Mon Aug 16, 2010 2:15 am    Post subject: Reply with quote

Maybe it's all in your head. Cool

http://zapatopi.net/afdb
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Home Grown Tele



Joined: 10 Jul 2006
Posts: 5603
Location: The Queens ;-)

PostPosted: Mon Aug 16, 2010 6:39 am    Post subject: Reply with quote

A Faraday cage is anything that blocks your cell phone service. I worked in one in Coudersport P.A. for about a year and a half! Twisted Evil Twisted Evil Twisted Evil
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I freeze all the electronic parts of my guitars. It gives them a piquant, morsellated quality, with none of the unctuousness of more garrigue components.
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RandyM



Joined: 10 May 2008
Posts: 6716
Location: Austin Texas

PostPosted: Mon Aug 16, 2010 6:52 am    Post subject: Reply with quote

I worked inside of one in the Navy. That room was quiet (RF). The copper brushes around the door frame were VERY cool looking.
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marksound



Joined: 15 Aug 2005
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Location: OKUSA

PostPosted: Mon Aug 16, 2010 7:12 am    Post subject: Reply with quote

Anybody see The Sorcerer's Apprentice? Cool
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Vince



Joined: 10 May 2007
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Location: Decatur IL

PostPosted: Mon Aug 16, 2010 7:18 am    Post subject: Reply with quote

Does it have something to do with this tube cage?
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Kregg



Joined: 22 Apr 2008
Posts: 3333
Location: Atlanta

PostPosted: Mon Aug 16, 2010 9:11 am    Post subject: Reply with quote

Won't the aluminum in contact with copper set up electrolysis? One could buy a whole roll of copper mesh and cover the entire amp! Wink
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RayRay



Joined: 17 Feb 2008
Posts: 5304
Location: Colorado

PostPosted: Mon Aug 16, 2010 9:50 am    Post subject: Reply with quote

So....what band did Mike Faraday play with? I thought cages were popular in the 70's Disco era? I had a blue Leisure suit once...used to wear it when I got in a cage..WOWOW only $44.99 for 3...I think that's what I paid for the suit...I didn't know they had amps in 1836...but I could have missed it I was just a kid then.. Laughing
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Last edited by RayRay on Mon Aug 16, 2010 9:54 am; edited 1 time in total
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Vince



Joined: 10 May 2007
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Location: Decatur IL

PostPosted: Mon Aug 16, 2010 9:52 am    Post subject: Reply with quote

ha
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Kregg



Joined: 22 Apr 2008
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Location: Atlanta

PostPosted: Mon Aug 16, 2010 11:29 am    Post subject: Reply with quote

RayRay wrote:
I thought cages were popular in the 70's Disco era? I had a blue Leisure suit once...

Dancin' Fool
"Don't know much about dancin'
That's why I wrote this song
One of my legs is shorter than the other
And both of my feet's too long." Cool
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dougk



Joined: 11 Dec 2007
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Location: About to lose his head in Sacramento

PostPosted: Mon Aug 16, 2010 12:08 pm    Post subject: Reply with quote

tangelolemon wrote:
No, but on a related note, I've considered multiple times building a big walk-in Faraday cage to sit in while recording guitar tracks with single coil guitars. In particular, I have a '62 jazzmaster that is very susceptible to stray hum. I've wondered if sitting in a Faraday cage while recording would eliminate that.


Supposedly they had to build one for SRV when he recorded his later albums running multiple amps cranked up. Laughing
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rhardman



Joined: 11 Sep 2008
Posts: 4422
Location: Chicago, not ready for reform, yet

PostPosted: Mon Aug 16, 2010 6:09 pm    Post subject: Reply with quote

A Faraday cage is fine as far as RF interference goes, but does absolutely zip for dealing with magnetic lines of force...the interaction between the pup and the speaker. Proper grounding techniques do a lot more to lower the noise floor. Star grounding to an independent ground for alll devices in a given circuit devices does it. So does installing a balancing tranny on the AC line. They go for about $2K/ 20A circuit.

Starts to get really expensive. quickly.
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RayRay



Joined: 17 Feb 2008
Posts: 5304
Location: Colorado

PostPosted: Tue Aug 17, 2010 12:10 am    Post subject: Reply with quote

This all keeps running around inmy skull...I THINK it was politics that kept Ben. Franklin from getting credit for the "Invention" but the fact remains...it had no effect on static charge and the last I checked, they didn't have amps OR computers or AC current or tubes in the 17-1800's althought BOTH of these guy's would have loved it...so what was the purpose of their experiment? and creating a "Faraday" cage.?
I know I KNOW....go back to be Old Man! Laughing

http://en.wikipedia.org/wiki/Faraday_cage#History
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Life without music is a VOID!

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"I love God, my family, America, and the Constitution.
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