Try POLAR's CITS25 Differential Controlled Impedance Calculator program. Available for DEMO download at www.polar.co.uk JOE SENDZ........... -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Erika Pacheco Sent: Friday, October 09, 1998 11:29 PM To: [log in to unmask] Subject: [TN] Differential impedance Hello, Does anybody out there know where I could get some information on differential impedance and possibly a differential impedance calculation? ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################