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#11
May 31st 07, 12:47 AM
posted to rec.radio.amateur.homebrew,sci.electronics.basics,alt.music.makers.electronic,rec.music.makers.guitar,sci.electronics.misc
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radio shielding?
Aha - thanks.
On May 30, 6:19 pm, "DaveM" wrote: "Mad Scientist Jr" wrote in ooglegroups.com... Did you use shielded wire to connect the controls and jacks? Thanks for your reply... No, just normal stranded wire. Is that where the most interference would be leaking in? I found shielding paint (see below) - would it help to paint the inside of the project box with this? http://www.lessemf.com/paint.html SUPER SHIELD Reduce or Eliminate EMI / RFI Interference Super Shield A general purpose EMI/RFI shielding in a handy aerosol spray for use on most substrates. Especially good for RF shielding plastic electronics enclosures. Consists of a tough, durable acrylic base pigmented with a high purity nickel flake. One to two mil coating provides 40dB - 50dB shielding across a frequency range of 5 to 1800MHz. About 1600 inČ/can coverage at 1.5 mil. Contains no CFC 'S, NO HCFC'S, ozone friendly. 340g (12 oz) aerosol can. Dries to a dull gray color. Click to see MSDS * Surface Resistivity ~0.7 Ohm/sq * Dry time: 10 minutes at room temperature * Recoat time: 5 minutes * Excellent adhesion to most plastics * Tested as per IEEE Std. 299-1997 * Underwriters Laboratories Recognized File No.: E202609 * NO CFC 'S, NO HCFC'S, Ozone Friendly * RoHS Compliant Flammable aerosol, ships by ground only. Super Shield (Cat. #A285) ....................................... $24.95 add to cart For $24.95 plus shipping, that's some mighty expensive shielding. Why not spend about half of that and buy a proper aluminum chassis for it. They offer inherent shielding. You'll have to do a bit of easy drilling to mount the components, but it's well worth the effort, and it looks so much better than a cardboard box. Surf over towww.mouser.comand search for Bud mini-box. There are quite a number of sizes available; one is sure to fit your needs. Cheers!! -- Dave M MasonDG44 at comcast dot net (Just substitute the appropriate characters in the address) Life is like a roll of toilet paper; the closer to the end, the faster it goes. |
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