Date: Wed, 31 Mar 2010 01:12:25 +1300
From: Steve Rooke <[email protected]>
Subject: Re: [time-nuts] Making a HP 10811 better
To: Discussion of precise time and frequency measurement
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Has anyone tried putting one of these in a thermos flask? I have seen
wide necked flasks available for food storage which should allow the
device to be inserted and it could be wedged in place with something
like foam blocks inside. I appreciate that this does not let the item
loose heat but it should not make itself too hot in the first place.
At least this should protect it from external temperature swings.
Yes, I do know that they actually make OCXOs like this and that's
where I got the idea.
Cheers,
Steve (slowly recovering)
On 26 March 2010 08:10, WarrenS <[email protected]> wrote:
I was wondering if there is any interest for a single oven HP 10811
improvement design kit of some sort?
ws
I think what Steve might be remembering are frequency standards similar to
the Navy URQ-10. Those indeed had thermos flasks to house the crystal
itself, not the entire OXCO circuit. Only the crystal blank and possibly
the temperature sensor were inside the flask.
David M
dgminala at mediacombb dot net
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