Just throwing this out: would it be possible recover the cesium by heating
the tube but cooling it near where the reservior is? This might cause the
cesium to migrate in that direction and some of it end up in the reservior?
Pete.
On 11/2/2016 11:38 AM, paul swed wrote:
Oh yes and guess which tubes we find? The 40 year olds at ham prices. :-)
At least thats what I have.
Like your comment as so far what I have learned is that seems like other
things going on.
I sort of believe its C pollution of things like the ionizer and even the
photo tube elements over time. Its a curiosity without much of a way to
prove it.
Regards
Paul
WB8TSL
On Wed, Nov 2, 2016 at 10:53 AM, Richard (Rick) Karlquist <
[email protected]> wrote:
This has probably been covered here before, but, at least going
to the 5071A, now 25 years ago!, all CBT's, whether high
performance or not, have the same amount of cesium inside.
This means that the standard performance (never call it
"low" performance) CBT has enough cesium to last 30 years!
Thus for those tubes, we can rule out cesium replenishment
even if it were possible.
Rick
On 11/1/2016 8:38 PM, Mark Sims wrote:
You mean I can't just drill a hole in, wash out the old cesium with some
tap water ;-), toss in some new cesium, suck out the air, bung a cork in
the hole, and call it a day? Drat! foiled again...
---------------
Because it's not that easy. We are talking about a high vacuum system
here.
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