Phil Allison wrote:
"Crumb"
This sort of interference is reduced by the fact the two wires are
*twisted* inside the cable which reverses the phase of any hum signal
picked
up every inch or so along the line and hence cancels it out. Where
multiple
twisted pairs are used in the same cable the twisting reduces crosstalk
in
the same way as above.

Twisting puts NOTHING out of phase.


** Go try it - you fool.

See how WRONG you are.

There is a nice discussion of this in the ITT Radio Engineer's Handbook.
I won't summarize it here because it'll just make Phil go off his nut
again, but it's worth looking up.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."