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In Reply to: RE: Hagerman Piccolo head amp - First impressions (pics) posted by HenryH on July 11, 2007 at 13:16:54
I'm about to wire a pair to my Cornet II and have some TI Shield on hand from M Percy to place around them if needed. Very effective in other pre-amp applications. I also used the Microsorb to line the steel chassis with 36 ga. copper sheet I got at Hobby Lobby to shield and damp the steel.Could work for you.
"Ti SHIELD: Unique composite shielding material from Texas Instruments for blocking EMI & RFI interference. Conventional
shielding materials excel either in electrical conductivity or magnetic permeability, but not both. Steel is not conductive enough
to be effective at blocking high frequencies, while copper and aluminum are not effective at absorbing low frequency EMI. No
single material met both of these requirements until TI developed this copper/alloy 49/copper composite material. TI Shield is
effective from below 10Hz up to 10GHz and is currently available only in .014" thickness. Counterpoint utilized similar technology
in construction of their chassis' and found significant audible benefits were to be derived from surrounding audio circuitry
with materials that shield against both EMI & RFI. MicroSorb (pg. 18) could be used to adhesive back this material and provide
mechanical damping of the chassis as an additional benefit. Unlike Mu-Metal, this material may be cut and bent into convenient
shapes without requiring annealing to restore its shielding properties. 12" x 12"/$27.95, 12" x 24"/$54.50" -(page 14 of his catalog)
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