[NJARC] cryogenicking your vacuum tubes

Harry Klancer klancer2 at comcast.net
Fri Apr 8 14:29:46 EDT 2016


Alex,

Thank you.  In case people don't look at the
entire paper, here is probably the major
point that the author makes:

"... It would be magical if cryogenic treatment were some kind of 
‘cure-all’ that improves the insulation properties of mica spacers, 
reduces inter-electrode movement and improves the emission of the 
cathode coatings to reduce noise and microphony. But I cannot imagine 
how this works – ‘magical’ really is the right word to use here because 
cryogenic treatment of tubes is certainly not science. ..."

                                      Harry K

On 4/8/2016 2:10 PM, Alex Magoun wrote:
> Just remember
> Reply = Poster
> Reply All = Everyone
>
> _________________________________________________________
>
>
>
> Here's a usefully skeptical review of a recent commercial trend among
> purveyors to the golden ears--not that any of us have that affliction (I
> think):
> http://blog.thetubestore.com/cryogenic-treatment-of-tubes-an-engineers-perspective/.
>
> Alex
> ~~~
> Alexander B. Magoun, Ph.D., Outreach Historian
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