Try Polar Instruments. ---------- > From: [log in to unmask] > To: [log in to unmask] > Subject: [TN] dual stropline > Date: Wednesday, May 13, 1998 10:20 AM > > I am looking to see if anyone has the calculations for " Dual > Stripline " controlled impedance in a spreadsheet type of formula. I > have all the others, but this particular type has just reared it's > ugly head, and we haven't done this board type before. I am just > trying to make sure that my calculations, and lay-ups are accurate. > Keep in mind I'm not a Math Wizard, hence the need for the spreadsheet > type of format. Any help will be deeply appreciated. If what you have > is not proprietary e-mail to [log in to unmask] with any help or > files. Again, thanks in advance. > > > Ernie Smith > > Electropac Co. Inc. > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. > For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 > ################################################################ > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################