[time-nuts] Re: So what's inside that Cs beam tube anyway?

[Magnus Danielson]

Hi Skip!

Thank you for a very nice set of photos! You already made my curiosity 
somewhat satisfied.

It would be nice to have the next step of the "blow up sketch" with 
photos of the various components. Not saying that it is your job to do 
it, but to fully satisfy curiosity and do more of the show and tell.

I've contemplated doing something like this, but not got around to do it.

Cheers,
Magnus

On 2023-08-31 19:57, Skip Withrow via time-nuts wrote:
> Hello time-nuts,
> Five or six years ago I cut open one of the original HP cesium beam tubes
> and posted some pictures.  I presume they are floating around the net
> somewhere still.
>
> So, I have repeated the exercise with one of the newer (smaller) tubes, and
> thought I would share the results.  Attached are a half dozen photos,
> several are annotated to get the lay of the land.  I have higher resolution
> non-annotated versions if anyone has a desire.
>
> Some observations are:
> 1.  There are four nice holes that can be used to mount the cut open unit
> above a base using screws or standoffs.  And from the scratches appears to
> be how HP mounted the innards during assembly.
> 2.  After these pictures were taken I cut a window in the mu metal shield
> hoping to expose the microwave waveguide.  What did I find - another mu
> metal shield, argh.  It's too tight to get my Dremel tool in there to cut
> through the second one.
>
> I have four (4) of these tubes and three (3) of the older style tubes that
> are excess to my needs.  If anyone wants one I'm willing to ship, but they
> are heavy (about 20 pounds).  The leads are cut off these tubes - they are
> dead.  I would anticipate shipping would be about $35-$40 to the lower 48.
> Please contact me off-list if interested.
>
> Regards,
> Skip Withrow
>
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