Quoting Bruce Griffiths <[EMAIL PROTECTED]>, on Fri 04 Jul 2008 05:47:53 PM PDT:
> Jim Lux wrote: >> >> That one I'm familiar with.. (SpaceWire cables, for instance, have 4 >> shielded twisted pairs, 2 in each direction, with the shields grounded >> at the sending end for each pair of pairs)... >> >> >> These were just plain old two (gold/palladium plated) pins for each >> "cable" (granted, the cable is some complex braided combination of >> silver ribbons, which is a fairly exotic form of Litz wire, I >> assume... but no shield) >> >> >> > Unless each individual strand is insulated from all the others (as it is > in true Litzendraht) braiding the wire is ineffective in reducing skin > effect. > > Bruce It was unclear from the literature I saw, but I have to assume that they know this (Litz wire and all it's properties have been "fashionable" in one sense or another for the audiophile biz for decades... I had friends who made their own). On the other hand... I did run across an interesting product for high end audio (not recently)... air core tape wound inductors (i.e. a pancake shaped coil with the winding of thin tape, instead of wire) in both silver and copper. Very interesting stuff. A friend was looking at using them for magnets for a rail gun type system (since they have have a hole in the middle for mounting)... Jim _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
