I am seeking help in finding enlightenment regarding electrical performance pros and cons and how manufacturing tolerances play a role when comparing side by side and tandem differential pairs. I'd appreciate your opinion, experience, analysis, pointers to papers and articels, etc. In return, I would offer to share a summary of the finding/discoveries with interested parties. Thanks Juergen ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu