We have got a bit more info from Metcal and collected some information from= =20 individual products too: 1. Feedback from Metcal support team, http://www.auelectronics.com/forum/index.php/topic,205.msg503.html#msg503 2. Major Tech. Spec. for all three solder stations: http://www.auelectronics.com/forum/index.php/topic,205.msg504.html#msg504 Hope above info will be helpful for those who are interested in Metcal Sold= er=20 Stations. Funny N. Au Group Electronics, http://www.AuElectronics.com http://www.AuElectronics.com/products http://augroups.blogspot.com/ =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .