[time-nuts] Early WWV Oscillator

Bob Camp lists at rtty.us
Tue Aug 14 19:49:02 EDT 2012


Hi

The circuit in the app note is essentially a 1930's idea. The performance they are showing is related to the very small size / low mass of their oven rather than it's high performance. An oven large enough to do any good with a TBolt would be a very different creature. 

Bob

On Aug 14, 2012, at 4:42 PM, Ron Ward <n6idlron at comcast.net> 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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