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Old 9th June 2003, 03:21 AM   #1
cowanrg is offline cowanrg  United States
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Default wooden box for preamp?

im thinking about doing a bosoz in a wooden enclosure instead of a metal one. the design just lends itself toward a simple and pleasant enclosure, than a harsh metal one.

the big problem becomes shielding. is there something i could easily (cheaply) do for shielding? copper sheets laminated inside the box walls? a spray on, or adhesive product that provides shielding?

if anyone has pics of wood enclosures, please post them, i would like some ideas!
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Old 9th June 2003, 03:41 AM   #2
JoeBob is offline JoeBob  Canada
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You could use copper foil to shield from RFI, but I would say to try it without that hassle first. I have used wooden chasis and never had any problems with their lack of shielding.
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Old 9th June 2003, 04:46 AM   #3
cowanrg is offline cowanrg  United States
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do you have a picture?

and where would one go about getting copper foil?
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Old 9th June 2003, 04:52 AM   #4
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You could use something like this http://www.mgchemicals.com/products/841.html

Either that or some Nickel Paint. It's used for shielding the routed-out cavities of electric guitars.
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Old 9th June 2003, 04:59 AM   #5
cowanrg is offline cowanrg  United States
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that looks pretty good. i just want the look of wood with the shielding qualities of metal. that would probably do.
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Old 9th June 2003, 05:25 AM   #6
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Quote:
Originally posted by cowanrg
do you have a picture?

and where would one go about getting copper foil?
Where else? http://www.mcmaster.com

se
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Old 9th June 2003, 05:45 AM   #7
cowanrg is offline cowanrg  United States
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duh, what DONT those guys have! my brain went dead after all this reading about veneering... geesh, there is a lot to know!

it looks like i can only get larger quantities though... $36 aint bad, but i dont need 50 feet of the stuf.
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Old 9th June 2003, 05:57 AM   #8
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Quote:
Originally posted by cowanrg
duh, what DONT those guys have!
They don't have Marissa Tomei. I searched their entire catalog. Came up empty.

Quote:
it looks like i can only get larger quantities though... $36 aint bad, but i dont need 50 feet of the stuf.
You can probably find smaller quantities at a local crafts/hobby store. Whip out the Yellow Pages and let your fingers do the walking.

se
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Old 9th June 2003, 06:05 AM   #9
cowanrg is offline cowanrg  United States
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good idea. this is going to be the ultra budget project, but of course, i still want the outcome to be good. it just doesnt need to be overkill.

this is the preamp that will drive my infinity intermezzos i just got (for free). doesnt need anything super duper nice, but they are decent speakers, they deserve some good front-end.

so far veneering sounds easy and hard, all at once. thankfully i just bought a router table and stand for my router. looks like thats the best way to get nice edges.
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Old 9th June 2003, 06:11 AM   #10
cowanrg is offline cowanrg  United States
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i do have one quick question, would you veneer the WHOLE box, including the back and top, sides, (probably not the bottom), or just the front top and sides. and leave the back alone?

also, when you veneer, do you veneer first, then cut holes? for instance, its a preamp, and im putting inputs and junk in the back, do i cut holes after its all veneered?
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