Attached here is a long term AD plot of an FE405B.
Stays in the 10-13ths all the way up to 10,000 seconds!
This unit has only been operating for about 2 weeks.
In a month I'll repeat this plot and also include the aging rate.
I have found that these oscillators exhibit less drift than most others I
have tested!
Cheers,
Corby Dawson
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