If these are caps, ferrite beads, some film resistors...your component supplier has a preheat specification that must be met or the part will fail in the field. On many machines, especially those with less than 5 feet of preheat or solder temperature greater than 475 F, this will result in a very tight wave profile. ______________________________ Reply Separator _________________________________ Subject: [TECHNET] wave profile needed Author: "MIKE J. LOPEZ" <[log in to unmask]> at INTERNET