The electrical characteristics of 770(Cu/Zn/NI;55,27,18) or 752 (Cu/Zn/NI;65,17,18) are almost exactly the same as brass. Brass is pretty close to copper. Copper is a great conductor and has a low mu. Other than ascetics we would probably use copper. Nickel silver doesn't tarnish, i.e. maintains a nice appearance indefinably. It also is malauble, mealuable, ..... easy to bend. Works well with chem. etch processing to. BTW; We had our monthly b-day lunch, made up for sweet and low with an extra slice of pizza. Dan --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------