Alan McKay wrote: > On Sat, Oct 10, 2009 at 2:14 PM, Giovanni P. Tirloni <tirloni at gmail.com> wrote: >> Can you get something like the average lifespan of the circuits in >> hours ? > > HDs and other components should have published "MTBF" - Mean Time > Between Failure But they are never realistic in terms of actual life spans. They are computed from the failures across a large number of new components in a test environment. -- Les Mikesell lesmikesell at gmail.com