Hi, I have a problem with an old FTS 1000B from around 1993/4, and am wondering if anyone here has any suggestions or can point me to any info.
The problem is just that it's much less stable than it should be - at 100s it's around 1E-11. As well as general instability, it often drifts by 6 to 10 E-11 over half an hour or so, often drifting back by the same amount a while later. (At 1s it's worse than it should be, but not by very much, and long term aging is ok) The control/ref voltages on the buffer board are stable, as is the oven temp. It's on a stable linear supply which has worked fine with any other oscillator that I've tried on it, even if connected at the same time as the 1000B - although each with its own filter. I have a horrible feeling that it's just the crystal slowly dying, but hopefully it's less terminal. Thanks, Angus. _______________________________________________ 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.
