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

[cdelect at juno.com]

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