[time-nuts] FTS1050A data

[Jim Schatzman]

As I mentioned previously, in some 3-day tests one particular FTS1050A (FTS1050AB7 in the plots) performs well (bottom curves) and in other tests it performs somwhat poorly (upper curves). All the comparators in this MADEV plot perform similarly, so there is no obvious reason why there is split into good and bad cases. I have never before seen this behavior.

I will open up the case and do some power supply testing. Another suggestion a reader made was that it could be a solder problem in the oscillator assembly. The control circuits may also have a problem. I will pull out all the PC boards, clean off the edge connector contacts, and reseat them.

Jim
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