[time-nuts] Early WWV Oscillator

Brooke Clarke brooke at pacific.net
Tue Aug 14 16:49:44 EDT 2012


Hi Ron:

Rick Karlquist knows about the HP E1938 Ovenized Crystal Oscillator that makes use of isothermal design to achieve 
precision temperature control.
http://www.prc68.com/I/HPE1938.shtml

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html

Ron Ward wrote:
> HI Robert:
> WOW! Thanks.
> I need to build a double oven for my thunderbolt and set it to about 50
> Degrees C.
>
> I am really just trying to reduce the 24 hour temperature range.
>
> I am looking at an application note from National Semiconductor, AN 266,
> for a precision oven. It claims .001 degree C!
>
> The internal oven for the Trimble Oscillator is most likely not as good
> as the one featured in the application note.
>
> Any ideas?
>
> Thanks again,
> Ron
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Robert Atkinson
> Sent: Tuesday, August 14, 2012 1:21 PM
> To: Time Nuts
> Subject: [time-nuts] Early WWV Oscillator
>
> Came across this when browsing
>
> \http://nistdigitalarchives.contentdm.oclc.org/cdm/singleitem/collection
> /p16009coll3/id/34
>
> Robert G8RPI.
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