On Tue, Feb 21, 2012 at 9:27 AM, Bob Camp <[email protected]> wrote: > Hi > > I just got a couple of FE's in from the same guy. They all lock up ok, no > idea about how they age. One interesting thing though: > > All the other FE's I have seen came attached to PC boards. The ones I just > got were taken off the board before shipping. All other FE's I've seen came > in pretty close to 10 MHz on the high end of the VCXO sweep. The latest > batch came in *much* higher (like 50 to 70 Hz high). I'm wondering if they > were taken off the PC board to adjust the VCXO so they would lock.
That makes sense. If you have many FE5680s, yu test them and sell the good ones first as you repair the failed units. On another list people were asking if they should buy a "reconditioned" product from Apple. (Apple offers the same 1 year warranty.) The majority opinion is that the "reconditioned" units have a better record because they were bench checked here is the USA and have better quality assurance testing than the new units get in China. This may be true of the re-worked FE5680s too. A reworked unit might have been tested for 30 minutes or so while the others only got powered up briefly. We don't really know the level of testing but over all these seem to be reputable sellers who are responsive to problems. I do avoid sellers who claim their stuff is "new" when it can't be new. Either their understanding of the English word "new" is poor or they are misrepresenting the product. Either way there are others who don't misuse the word that I can buy from. Chris Albertson Redondo Beach, California _______________________________________________ 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.
