Hello Paul, Have you tried to download "Fred's Tip Cartridge Picker" from http://www.metcal.com/tips/1.3.4.htm ? It's a little Excel document (40kb compressed) and after you have choosed the geometry of the components, you get the suggestion of the metcal tip that should be used. Approx. temperature range of the metcal tips should be: 500 series around 285 degrees celsius 600 series around 315 degrees celsius 700 and 1100 around 370 degrees celsius. --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------