[time-nuts] Have done some more cutting on the Cs beam tube

[Bill Dailey]

Is it possible that the higher temp keeps the tube "cooked off?"

Bill Dailey


> On Feb 19, 2017, at 12:54 PM, <cdelect at juno.com> <cdelect at juno.com> wrote:
> 
> Hi,
> 
> The tiny coil inside the beam path is the low frequency coil used for DC
> testing of the tube.
> 
> The tube shown is a standard performance tube and has no degaussing coil.
> 
> The flat windings on top of the shield are the C-field winding.
> 
> The high performance cavity is even "prettier".
> 
> You can see one at http://www.leapsecond.com/pages/cesium-tube/
> 
> Towards the bottom you can see the C-field windings in slots around the
> circumference of the cavity.
> 
> BTW in 5071A tubes there is no internal difference between the STD and
> High Performance tubes.
> 
> They just run at different temperatures! Saves having to build two
> different tubes!
> 
> Some more interesting 5071A tube info will post in a couple weeks!!! 
> 
> (Hint: Run your 5071A HiPerf tube at the Std tube temperature to extend
> life!!!???)
> 
> Cheers,
> 
> Corby
> 
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