[sdiy] when and why use stranded? (was making PCBs, what's yourmethod?)

[Harry Bissell Jr]

As far as I know, the skin effect would still move
the current to the outside of the conductor anyway...

however the use of tubing as a conductor is well know
in high power magnetics because you can liquid cool 
it by simply flowing water (or other fluid) in the
center.

Usually you need to use VERY pure distilled water of
terrible things (like corosion etc) take place.

I have seen coaxial arrangements done with liquid
cooled
tubing with insulation and braid over the top... this
can control stray inductance quite well. The braid is
cooled by conduction through the insulation.

s-diy content ???

TRY THAT with your 'bananna' plugs !!!    :^P

H^) harry



--- Glen <mclilith at charter.net> wrote:
> At 04:29 PM 7/19/04 , harrybissell wrote:
> 
> >This is only partially true, unless you use special
> wire (Litz wire) that
> has each individual strand insulated.
> 
> Speaking of exotic wire, has anyone heard of using
> "hollow" wire? The same
> day that my Navy-trained electronics instructor told
> the class about Litz
> wire, he also mentioned using the concept of using
> hollow wire. It would
> have more surface area, and be less affected by skin
> effects, but I've
> never heard anyone else mention this type of wire.
> I'm not sure if he was
> referring to metal tubing, or to perhaps to a metal
> sheath layered over a
> non-conductive solid core. (The latter design would
> prevent flattening, if
> the wire was bent.)
> 
> 
> later,
> Glen