Yes. If I was doing one in brass, I'd be silver-plating all the components before final assembly, then using silver solder. That would give you a nice high-q capacitor.
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On 29/12/2013, at 5:49 AM, <gnuarm.2006@...> <gnuarm.2006@...> wrote:
Considering that the starting point was Aluminum and the change to copper was to improve the conductivity, then yes, Brass has a lower conductivity and *will* make a difference. The resistivity of these materials in nOhm m are
Cu - 17.1
Al - 26.5
Brass - 64
Of course the composition of Brass varies a bit and so will the resistivity, but it won't change enough to alter these relative amounts.
In changing from Aluminum to Copper, I would question the resistance of the soldered connection compared to the solid body of the Copper. It may well be that the added resistance of the welded Aluminum is less than that of the soldered joints. Solder is *much* better than mechanical connections, but I expect a weld is significantly better yet. However the devil is in the details... just how good a solder joint you get.
