I have purchased several NIB Electroharmonix tubes. These are the new variety and not NOS. Does anyone know what the anticipated shelf life is on these newer tubes or any reason to believe that they will degass or otherwise degrade faster than NOS from 20 or more years ago?
If your old tubes start passing gas, believe me, you'll know it if you're in the same room. Just keep them away from the dried fruit and legumes and you'll be fine.
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