We've had the 9700 (over 10 years) for quite some time (over 10 years) with no real problems. Are you using the little black tube insert for single tubes and the red one for strip tubes? Without those you will crush the tubes (but I think these are similar to what gets used with the 2700 (which we also have). I will admit that I haven't watched the temps closely for quite some time, but we're not having problems with our PCR either.
Mike --- Michael L. Sullivan, PhD Research Molecular Geneticist US Dairy Forage Research Center 1925 Linden Drive Madison, WI 53706 608-890-0046 (Phone) 608-890-0076 (FAX) On Apr 15, 2013, at 11:10 PM, DK wrote: > I got the unit used after >10 years of using PE 2700 with good and > very consitent results. Was assuming that 9700 is going to be the > same - just better. It's supposed to be the Casdillac of thermo > cyclers, after all. > > Well, the thing warps my tubes (dome-capped) badly so that > opening them after the cycling is a real physical challenge. Maybe > related to that crazy 104C heated cover temperature that I cannot > seem to change. It also seems to overshoot by a second or two > at every temprerature (95C is momentarily 96.5 and 55 is actually > 53.4 for good two seconds). > > All in all, the thing seems really inferior to its smaller and less > expensive cousin. Am I doing something wrong? > > DK > _______________________________________________ > Methods mailing list > [email protected] > http://www.bio.net/biomail/listinfo/methods _______________________________________________ Methods mailing list [email protected] http://www.bio.net/biomail/listinfo/methods
