The discussion on the merits of failure rate calculations is fascinating. I was asked by one of our customers to provide MTBF for our products. After some research, I told them I couldn't provide that data and didn't think it would be of much use if I did. I asked if MTTF wouldn't be a better figure and they said "no" but gave no reason why. They asked about failures reported by our customers over the years. I replied that in 15 or so years of making that product, we have not received a single report of failure in the field. In that time, we have made probably 50 million at least, so our MTBF should be pretty good. The one thing all that ignores is that our product (molded thick film attenuators) if discovered defective in the field is just tossed by a technician and a new one installed. They are pretty reliable though. I just can't say with certainty how reliable. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
