... and don't forget to allow for the effect of the Coriolis force, as outlined in the following which is from a Hi-Fi forum a few years back (around the time people were using green ink round the edge of CDs):
> Another consideration is the coriolis force which causes electrons > to spin around the edge of plated through holes as they pass > from one level of the board to another. Since the direction > of spin around the hole does not change whether the electron > is going down the hole or up the hole, the component of current > around the hole is a full wave rectified or frequency doubled > version of the total current, causing second harmonic distortion. > > Also the coriolis force changes direction from the northern > to the southern hemisphere and changes magnitude with latitude, > being strongest at the poles. This is the reason the right > stereo channel sounds better in the northern hemisphere and > the left channel sounds better in the southern hemisphere. > > For balanced performance all audio circuit boards should > be mounted vertically and in a north south direction. This > not only reduces coriolis effects but also minimizes > Hall Effect voltages due to the earths magnetic field. Unfortunately I don't have an exact date, but ISTR it was early April that year :-) Regards, AndyG > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] > Sent: 03 August 2005 17:10 > To: [email protected] > Subject: RE: [PEDA] Vias. > > > And you both forgot that like water in a pipe, electrons will > migrate to > the side of the via in which the flow is occuring, further > reducing the > effective "trace width" of the via... > > aj > [cut] ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
