[time-nuts] Improving the stability of crystal oscillators
SAIDJACK at aol.com
SAIDJACK at aol.com
Wed Oct 10 14:39:27 EDT 2007
In a message dated 10/10/2007 11:34:43 Pacific Daylight Time, jra at febo.com
writes:
>heater design: http://www.febo.com/hamdocs/d4art.html. The quality of
>the heater schematic isn't very good, but it's all I have.
>John
Thanks John!
BTW: I wonder how much effect thermistor and resistor-bridge aging as well
as opamp offset drift has on the long term aging of typical OCXO's since it
will shift the temperature setpoint of the crystal.
I think this is an issue that's not receiving a lot of attention in the
literature..
Said
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