[time-nuts] Double ovened 10811-60158 on ebay

Rick Karlquist richard at karlquist.com
Sun Jul 20 15:45:28 EDT 2008

A non sealed 10811 responds to humidity in a few minutes.
The speed is nearly limited by the rate of change achievable
in the environmental chamber.

Rick Ksrlquist N6RK

Tom Van Baak wrote:
> It would seem to me that a perfectly hermetically sealed oscillator
> is not a requirement for a typical GPSDO. Environmental effects
> to the oscillator that work slowly will be absorbed by the GPSDO
> tracking algorithm.
> If someone wants a fun project -- measure a 10811-60158 while
> changing the humidity from 10% to 90% and see if the oscillator
> drifts faster or a lot slower than the GPSDO time constant of the
> Z3801A.
> /tvb
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